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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/token/ERC20/ERC20.sol';
import '@openzeppelin/contracts/access/Ownable.sol';

/// @title implements minting/burning functionality for owner
contract MintableToken is ERC20, Ownable {
    // solhint-disable-next-line func-visibility
    constructor(string memory name, string memory symbol) ERC20(name, symbol) Ownable(msg.sender) {}

    /// @dev mints tokens to the recipient, to be called from owner
    /// @param recipient address to mint
    /// @param amount amount to be minted
    function mint(address recipient, uint256 amount) public onlyOwner {
        _mint(recipient, amount);
    }

    /// @dev burns token of specified amount from msg.sender
    /// @param amount to burn
    function burn(uint256 amount) public {
        _burn(msg.sender, amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface AggregatorInterface {
  function latestAnswer() external view returns (int256);

  function latestTimestamp() external view returns (uint256);

  function latestRound() external view returns (uint256);

  function getAnswer(uint256 roundId) external view returns (int256);

  function getTimestamp(uint256 roundId) external view returns (uint256);

  event AnswerUpdated(int256 indexed current, uint256 indexed roundId, uint256 updatedAt);

  event NewRound(uint256 indexed roundId, address indexed startedBy, uint256 startedAt);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./AggregatorInterface.sol";
import "./AggregatorV3Interface.sol";

interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface {}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

  function getRoundData(
    uint80 _roundId
  ) external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    bool private _paused;

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position is the index of the value in the `values` array plus 1.
        // Position 0 is used to mean a value is not in the set.
        mapping(bytes32 value => uint256) _positions;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._positions[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We cache the value's position to prevent multiple reads from the same storage slot
        uint256 position = set._positions[value];

        if (position != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 valueIndex = position - 1;
            uint256 lastIndex = set._values.length - 1;

            if (valueIndex != lastIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the lastValue to the index where the value to delete is
                set._values[valueIndex] = lastValue;
                // Update the tracked position of the lastValue (that was just moved)
                set._positions[lastValue] = position;
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the tracked position for the deleted slot
            delete set._positions[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._positions[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import '@openzeppelin/contracts/utils/ReentrancyGuard.sol';

import './interfaces/IVault.sol';
import './interfaces/IVaultFactory.sol';
import './interfaces/IStabilityPool.sol';
import './interfaces/ILiquidationRouter.sol';
import './interfaces/ITokenPriceFeed.sol';
import './interfaces/IMintableToken.sol';
import './interfaces/ILastResortLiquidation.sol';
import './utils/constants.sol';

/**
 * @title AuctionManager.
 * @dev Manages auctions for liquidating collateral in case of debt default.
 */
contract AuctionManager is Ownable, ReentrancyGuard, Constants {
    using SafeERC20 for IERC20;
    using SafeERC20 for IMintableToken;

    // Auction duration and lowest health factor
    uint256 public auctionDuration = 2 hours;

    uint256 public lowestHF = 0.95 ether; // 95%

    // Struct to hold auction data
    struct auctionData {
        uint256 originalDebt;
        uint256 lowestDebtToAuction;
        uint256 highestDebtToAuction;
        uint256 collateralsLength;
        address[] collateral;
        uint256[] collateralAmount;
        uint256 auctionStartTime;
        uint256 auctionEndTime;
        bool auctionEnded;
    }

    // Array to store auction data.
    auctionData[] public auctions;

    address public vaultFactory;

    // Events.
    event VaultFactoryUpdated(address indexed _vaultFactory);
    event AuctionDurationUpdated(uint256 _auctionDuration);
    event AuctionCreated(
        uint256 indexed _auctionId,
        uint256 _originalDebt,
        uint256 _lowestDebtToAuction,
        uint256 _highestDebtToAuction,
        uint256 _collateralsLength,
        address[] _collateral,
        uint256[] _collateralAmount,
        uint256 _auctionStartTime,
        uint256 _auctionEndTime
    );
    event AuctionWon(
        uint256 indexed _auctionId,
        address indexed _winner,
        uint256 _debtRepaid,
        uint256 _collateralValueGained
    );
    event AuctionEnded(uint256 indexed _auctionId);

    /**
     * @notice Sets the duration of each auction.
     * @dev Can only be called by the contract owner.
     * @param _auctionDuration Duration of the auction.
     */
    function setAuctionDuration(uint256 _auctionDuration) external onlyOwner {
        require(_auctionDuration > 0, 'auction-duration-is-0');
        auctionDuration = _auctionDuration;
        emit AuctionDurationUpdated(_auctionDuration);
    }

    /**
     * @notice Sets the lowest health factor allowed for bidding.
     * @dev Can only be called by the contract owner.
     * @param _lowestHF Lowest health factor allowed for bidding.
     */
    function setLowestHealthFactor(uint256 _lowestHF) external onlyOwner {
        require(_lowestHF > 0 && _lowestHF < 1e18, 'lowest-hf-is-0');
        lowestHF = _lowestHF;
    }

    /**
     * @dev Sets the address of the vault factory. Can only be called by the contract owner.
     * @param _vaultFactory Address of the vault factory.
     */
    function setVaultFactory(address _vaultFactory) external onlyOwner {
        require(_vaultFactory != address(0x0), 'vault-factory-is-0');
        vaultFactory = _vaultFactory;
        emit VaultFactoryUpdated(_vaultFactory);
    }

    /**
     * @dev Returns the total number of auctions created.
     * @return The total number of auctions.
     */
    function auctionsLength() external view returns (uint256) {
        return auctions.length;
    }

    /**
     * @dev Get auction information by ID.
     * @param _auctionId The ID of the auction.
     * @return Auction data structure.
     */
    function auctionInfo(
        uint256 _auctionId
    ) external view returns (auctionData memory) {
        return auctions[_auctionId];
    }

    /**
     * @dev Contract constructor to initialize the vault factory address.
     * @param _vaultFactory Address of the vault factory.
     */
    constructor(address _vaultFactory) Ownable(msg.sender) {
        require(_vaultFactory != address(0x0), 'vault-factory-is-0');
        vaultFactory = _vaultFactory;
        emit VaultFactoryUpdated(_vaultFactory);
    }

    /**
     * @notice Calculate total collateral value for a specific auction.
     * @param _auctionId The ID of the auction.
     * @return Total collateral value.
     */
    function getTotalCollateralValue(
        uint256 _auctionId
    ) public view returns (uint256) {
        auctionData memory _auction = auctions[_auctionId];
        ITokenPriceFeed _priceFeed = ITokenPriceFeed(
            IVaultFactory(vaultFactory).priceFeed()
        );
        uint256 _totalCollateralValue = 0;
        for (uint256 i = 0; i < _auction.collateralsLength; i++) {
            uint256 _price = _priceFeed.tokenPrice(_auction.collateral[i]);
            uint256 _normalizedCollateralAmount = _auction.collateralAmount[i] *
                (10 ** (18 - _priceFeed.decimals(_auction.collateral[i])));
            uint256 _collateralValue = (_normalizedCollateralAmount * _price) /
                DECIMAL_PRECISION;
            _totalCollateralValue += _collateralValue;
        }
        return _totalCollateralValue;
    }

    /**
     * @dev Creates a new auction to liquidate underwater debt against collaterals.
     * Accessible only by the liquidation router.
     * @notice Allows the liquidation router to initiate a new auction for the collateralized debt.
     */
    function newAuction() external {
        ILiquidationRouter liquidationRouter = ILiquidationRouter(
            IVaultFactory(vaultFactory).liquidationRouter()
        );
        require(msg.sender == address(liquidationRouter), 'not-allowed');

        uint256 _debtToAuction = liquidationRouter.underWaterDebt();
        require(_debtToAuction > 0, 'no-debt-to-auction');

        address[] memory _collaterals = liquidationRouter.collaterals();
        uint256[] memory _collateralAmounts = new uint256[](
            _collaterals.length
        );
        uint256 _collateralsLength = _collaterals.length;
        require(_collateralsLength > 0, 'no-collaterals');

        uint256 _totalCollateralValue = 0;

        ITokenPriceFeed _priceFeed = ITokenPriceFeed(
            IVaultFactory(vaultFactory).priceFeed()
        );

        for (uint256 i = 0; i < _collateralsLength; i++) {
            IERC20 collateralToken = IERC20(_collaterals[i]);
            uint256 _collateralAmount = liquidationRouter.collateral(
                _collaterals[i]
            );
            collateralToken.safeTransferFrom(
                address(liquidationRouter),
                address(this),
                _collateralAmount
            );
            _collateralAmounts[i] = _collateralAmount;

            uint256 _price = _priceFeed.tokenPrice(address(collateralToken));
            uint256 _normalizedCollateralAmount = _collateralAmount *
                (10 ** (18 - _priceFeed.decimals(address(collateralToken))));
            uint256 _collateralValue = (_normalizedCollateralAmount * _price) /
                DECIMAL_PRECISION;
            _totalCollateralValue += _collateralValue;
        }

        uint256 _auctionStartTime = block.timestamp;
        uint256 _auctionEndTime = _auctionStartTime + auctionDuration;

        uint256 _lowestDebtToAuction = (_totalCollateralValue * lowestHF) /
            DECIMAL_PRECISION;
        uint256 _highestDebtToAuction = _debtToAuction;

        if (_highestDebtToAuction < _lowestDebtToAuction) {
            uint256 _debtToAuctionTmp = _lowestDebtToAuction;
            _lowestDebtToAuction = _highestDebtToAuction;
            _highestDebtToAuction = _debtToAuctionTmp;
        }

        auctions.push(
            auctionData({
                originalDebt: _debtToAuction,
                lowestDebtToAuction: _lowestDebtToAuction,
                highestDebtToAuction: _highestDebtToAuction,
                collateralsLength: _collateralsLength,
                collateral: _collaterals,
                collateralAmount: _collateralAmounts,
                auctionStartTime: _auctionStartTime,
                auctionEndTime: _auctionEndTime,
                auctionEnded: false
            })
        );

        emit AuctionCreated(
            auctions.length - 1,
            _debtToAuction,
            _lowestDebtToAuction,
            _highestDebtToAuction,
            _collateralsLength,
            _collaterals,
            _collateralAmounts,
            _auctionStartTime,
            _auctionEndTime
        );
    }

    /**
     * @dev Get auction bid information.
     * @param _auctionId The ID of the auction.
     * @return _totalCollateralValue Total collateral value.
     * @return _debtToAuctionAtCurrentTime Debt to auction at the current time.
     */
    function bidInfo(
        uint256 _auctionId
    )
        external
        view
        returns (
            uint256 _totalCollateralValue,
            uint256 _debtToAuctionAtCurrentTime
        )
    {
        auctionData memory _auction = auctions[_auctionId];
        require(
            !_auction.auctionEnded &&
                block.timestamp <= _auction.auctionEndTime,
            'auction-ended'
        );

        _totalCollateralValue = getTotalCollateralValue(_auctionId);
        uint256 _highestDebtToAuction = _auction.highestDebtToAuction;
        uint256 _lowestDebtToAuction = _auction.lowestDebtToAuction;
        // decrease _debtToAuction linearly to _lowestDebtToAuction over the auction duration
        _debtToAuctionAtCurrentTime =
            _highestDebtToAuction -
            ((_highestDebtToAuction - _lowestDebtToAuction) *
                (block.timestamp - _auction.auctionStartTime)) /
            auctionDuration;
    }

    /**
     * @dev Transfer collateral to the last resort liquidation contract.
     * @param _auctionId The ID of the auction.
     */
    function _transferToLastResortLiquidation(uint256 _auctionId) internal {
        ILiquidationRouter _liquidationRouter = ILiquidationRouter(
            IVaultFactory(vaultFactory).liquidationRouter()
        );
        ILastResortLiquidation _lastResortLiquidation = ILastResortLiquidation(
            _liquidationRouter.lastResortLiquidation()
        );

        auctionData memory _auction = auctions[_auctionId];
        uint256 _collateralsLength = _auction.collateralsLength;
        address[] memory _collaterals = _auction.collateral;
        uint256[] memory _collateralAmounts = _auction.collateralAmount;
        uint256 _badDebt = _auction.originalDebt;

        _lastResortLiquidation.addBadDebt(_badDebt);
        for (uint256 i = 0; i < _collateralsLength; i++) {
            IERC20 collateralToken = IERC20(_collaterals[i]);
            collateralToken.safeIncreaseAllowance(
                address(_lastResortLiquidation),
                _collateralAmounts[i]
            );
            _lastResortLiquidation.addCollateral(
                address(collateralToken),
                _collateralAmounts[i]
            );
        }
    }

    /**
     * @dev Sends a bid from the caller to the auction for a specific auction ID.
     * @param _auctionId The ID of the auction.
     * @notice Allows a bidder to participate in the auction by placing a bid.
     * If the auction period is over or has been manually ended, it transfers the bid to the last resort liquidation.
     */
    function bid(uint256 _auctionId) external nonReentrant {
        auctionData memory _auction = auctions[_auctionId];
        require(!_auction.auctionEnded, 'auction-ended');

        if (block.timestamp > _auction.auctionEndTime) {
            // auction ended
            auctions[_auctionId].auctionEnded = true;
            _transferToLastResortLiquidation(_auctionId);
            emit AuctionEnded(_auctionId);
            return;
        }

        uint256 _totalCollateralValue = getTotalCollateralValue(_auctionId);
        uint256 _highestDebtToAuction = _auction.highestDebtToAuction;
        uint256 _lowestDebtToAuction = _auction.lowestDebtToAuction;
        // decrease _debtToAuction linearly to _lowestDebtToAuction over the auction duration
        uint256 _debtToAuctionAtCurrentTime = _highestDebtToAuction -
            ((_highestDebtToAuction - _lowestDebtToAuction) *
                (block.timestamp - _auction.auctionStartTime)) /
            auctionDuration;

        IMintableToken _stable = IMintableToken(
            IVaultFactory(vaultFactory).stable()
        );
        _stable.safeTransferFrom(
            msg.sender,
            address(this),
            _debtToAuctionAtCurrentTime
        );
        _stable.burn(_debtToAuctionAtCurrentTime);

        uint256 _collateralsLength = _auction.collateralsLength;

        for (uint256 i = 0; i < _collateralsLength; i++) {
            IERC20 collateralToken = IERC20(_auction.collateral[i]);
            collateralToken.safeTransfer(
                msg.sender,
                _auction.collateralAmount[i]
            );
        }

        auctions[_auctionId].auctionEnded = true;
        emit AuctionWon(
            _auctionId,
            msg.sender,
            _debtToAuctionAtCurrentTime,
            _totalCollateralValue
        );
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IAuctionManager {
    function newAuction() external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IExternalPriceFeed {
    function token() external view returns (address);

    function price() external view returns (uint256);

    function pricePoint() external view returns (uint256);

    function setPrice(uint256 _price) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IFeeRecipient {
    function baseRate() external view returns (uint256);

    function getBorrowingFee(uint256 _amount) external view returns (uint256);

    function calcDecayedBaseRate(
        uint256 _currentBaseRate
    ) external view returns (uint256);

    /**
     @dev is called to make the FeeRecipient contract transfer the fees to itself. It will use transferFrom to get the
     fees from the msg.sender
     @param _amount the amount in Wei of fees to transfer
     */
    function takeFees(uint256 _amount) external returns (bool);

    function increaseBaseRate(uint256 _increase) external returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface ILastResortLiquidation {
    function addCollateral(address _collateral, uint256 _amount) external;
    function addBadDebt(uint256 _amount) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface ILiquidationRouter {
    function addSeizedCollateral(address _collateral, uint256 _amount) external;

    function addUnderWaterDebt(address _vault, uint256 _amount) external;

    function removeUnderWaterDebt(uint256 _amount) external;

    function underWaterDebt() external view returns (uint256);

    function collaterals() external view returns (address[] memory);

    function collateral(address _collateral) external view returns (uint256);

    function tryLiquidate() external;

    function stabilityPool() external view returns (address);
    function auctionManager() external view returns (address);
    function lastResortLiquidation() external view returns (address);
    function distributeBadDebt(address _vault, uint256 _amount) external;
    function transferOwnership(address newOwner) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import './IOwnable.sol';

interface IMintableToken is IERC20, IOwnable {
    function mint(address recipient, uint256 amount) external;

    function burn(uint256 amount) external;

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function approve(
        address spender,
        uint256 amount
    ) external override returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import './IOwnable.sol';
import './IMintableToken.sol';

interface IMintableTokenOwner is IOwnable {
    function token() external view returns (IMintableToken);

    function mint(address _recipient, uint256 _amount) external;

    function transferTokenOwnership(address _newOwner) external;

    function addMinter(address _newMinter) external;

    function revokeMinter(address _minter) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IOwnable {
    /**
     * @dev Returns the address of the current owner.
     */
    function owner() external view returns (address);

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IPriceFeed {
    function token() external view returns (address);

    function price() external view returns (uint256);

    function pricePoint() external view returns (uint256);

    function emitPriceSignal() external;

    event PriceUpdate(address token, uint256 price, uint256 average);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IRouter {
    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] memory path,
        address to,
        uint256 deadline
    ) external;

    function getAmountOut(
        uint256 amountIn,
        address token0,
        address token1
    ) external view returns (uint256 amountOut);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IStabilityPool {
    function liquidate() external;

    function totalDeposit() external view returns (uint256);

    function deposit(uint256 _amount) external;

    function withdraw(uint256 _amount) external;

    function tbankToken() external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import './IOwnable.sol';

interface ITokenPriceFeed is IOwnable {
    struct TokenInfo {
        address priceFeed;
        uint256 mcr; // Minimum Collateralization Ratio
        uint256 mlr; // Minimum Liquidation Ratio
        uint256 borrowRate;
        uint256 decimals;
    }

    function tokenPriceFeed(address) external view returns (address);

    function tokenPrice(address _token) external view returns (uint256);

    function mcr(address _token) external view returns (uint256);

    function decimals(address _token) external view returns (uint256);

    function mlr(address _token) external view returns (uint256);

    function borrowRate(address _token) external view returns (uint256);

    function setTokenPriceFeed(
        address _token,
        address _priceFeed,
        uint256 _mcr,
        uint256 _mlr,
        uint256 _borrowRate,
        uint256 /* _decimals */
    ) external;

    event NewTokenPriceFeed(
        address _token,
        address _priceFeed,
        string _name,
        string _symbol,
        uint256 _mcr,
        uint256 _mlr,
        uint256 _borrowRate,
        uint256 _decimals
    );
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IVault {
    function vaultOwner() external view returns (address);
    function debt() external view returns (uint256);
    function transferVaultOwnership(address _newOwner) external;
    function setName(string memory _name) external;
    function containsCollateral(
        address _collateral
    ) external view returns (bool);
    function collateralsLength() external view returns (uint256);
    function collateralAt(uint256 _index) external view returns (address);
    function collaterals() external view returns (address[] memory);
    function collateral(address _collateral) external view returns (uint256);
    function factory() external view returns (address);
    function addCollateral(address _collateral, uint256 _amount) external;
    function removeCollateral(
        address _collateral,
        uint256 _amount,
        address _to
    ) external;
    function addBadDebt(uint256 _amount) external;
    function borrowable()
        external
        view
        returns (uint256 _maxBorrowable, uint256 _borrowable);
    function borrow(uint256 _amount) external;
    function repay(uint256 _amount) external;
    function calcRedeem(
        address _collateral,
        uint256 _collateralAmount
    )
        external
        view
        returns (uint256 _stableAmountNeeded, uint256 _redemptionFee);
    function redeem(
        address _collateral,
        uint256 _collateralAmount
    ) external returns (uint256 _debtRepaid, uint256 _feeCollected);
    function healthFactor(
        bool _useMlr
    ) external view returns (uint256 _healthFactor);
    function newHealthFactor(
        uint256 _newDebt,
        bool _useMlr
    ) external view returns (uint256 _newHealthFactor);
    function borrowableWithDiff(
        address _collateral,
        uint256 _diffAmount,
        bool _isAdd,
        bool _useMlr
    ) external view returns (uint256 _maxBorrowable, uint256 _borrowable);
    function liquidate() external returns (uint256 _forgivenDebt);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IVaultBorrowRate {
    function getBorrowRate(
        address _vaultAddress
    ) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IVaultDeployer {
    function deployVault(
        address _factory,
        address _vaultOwner,
        string memory _name
    ) external returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IVaultExtraSettings {
    function setMaxRedeemablePercentage(
        uint256 _debtTreshold,
        uint256 _maxRedeemablePercentage
    ) external;
    function setRedemptionKickback(uint256 _redemptionKickback) external;

    function getExtraSettings()
        external
        view
        returns (
            uint256 _debtTreshold,
            uint256 _maxRedeemablePercentage,
            uint256 _redemptionKickback
        );
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IVaultFactory {
    event NewVault(address indexed vault, string name, address indexed owner);
    event PriceFeedUpdated(address indexed priceFeed);

    function setPriceFeed(address _priceFeed) external;
    function vaultCount() external view returns (uint256);
    function lastVault() external view returns (address);
    function firstVault() external view returns (address);
    function nextVault(address _vault) external view returns (address);
    function prevVault(address _vault) external view returns (address);
    function liquidationRouter() external view returns (address);
    function MAX_TOKENS_PER_VAULT() external view returns (uint256);
    function priceFeed() external view returns (address);
    function transferVaultOwnership(address _vault, address _newOwner) external;
    function createVault(string memory _name) external returns (address);
    function addCollateralNative(address _vault) external payable;
    function removeCollateralNative(
        address _vault,
        uint256 _amount,
        address _to
    ) external;
    function addCollateral(
        address _vault,
        address _collateral,
        uint256 _amount
    ) external;
    function removeCollateral(
        address _vault,
        address _collateral,
        uint256 _amount,
        address _to
    ) external;
    function borrow(address _vault, uint256 _amount, address _to) external;
    function distributeBadDebt(address _vault, uint256 _amount) external;
    function closeVault(address _vault) external;
    function repay(address _vault, uint256 _amount) external;
    function redeem(
        address _vault,
        address _collateral,
        uint256 _collateralAmount,
        address _to
    ) external;
    function liquidate(address _vault) external;
    function isLiquidatable(address _vault) external view returns (bool);
    function isReedemable(
        address _vault,
        address _collateral
    ) external view returns (bool);
    function containsVault(address _vault) external view returns (bool);
    function stable() external view returns (address);
    function isCollateralSupported(
        address _collateral
    ) external view returns (bool);
    function vaultsByOwnerLength(
        address _owner
    ) external view returns (uint256);
    function redemptionHealthFactorLimit() external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IVaultFactoryConfig {
    event PriceFeedUpdated(address indexed priceFeed);
    event MaxTokensPerVaultUpdated(
        uint256 oldMaxTokensPerVault,
        uint256 newMaxTokensPerVault
    );
    event RedemptionRateUpdated(
        uint256 oldRedemptionRate,
        uint256 newRedemptionRate
    );
    event BorrowRateUpdated(uint256 oldBorrowRate, uint256 newBorrowRate);
    event RedemptionHealthFactorLimitUpdated(
        uint256 oldRedemptionHealthFactorLimit,
        uint256 newRedemptionHealthFactorLimit
    );

    function setMaxTokensPerVault(uint256 _maxTokensPerVault) external;
    function setPriceFeed(address _priceFeed) external;
    function setRedemptionRate(uint256 _redemptionRate) external;
    function setBorrowRate(uint256 _borrowRate) external;
    function setRedemptionHealthFactorLimit(
        uint256 _redemptionHealthFactorLimit
    ) external;
    function setBorrowFeeRecipient(address _borrowFeeRecipient) external;
    function setRedemptionFeeRecipient(
        address _redemptionFeeRecipient
    ) external;

    function priceFeed() external view returns (address);
    function MAX_TOKENS_PER_VAULT() external view returns (uint256);
    function redemptionRate() external view returns (uint256);
    function borrowRate() external view returns (uint256);
    function redemptionHealthFactorLimit() external view returns (uint256);
    function borrowFeeRecipient() external view returns (address);
    function redemptionFeeRecipient() external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IWETH {
    function deposit() external payable;

    function approve(address, uint256) external returns (bool);

    function transfer(address _to, uint256 _value) external returns (bool);

    function withdraw(uint256) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import '@openzeppelin/contracts/utils/ReentrancyGuard.sol';

import './interfaces/IVault.sol';
import './interfaces/IVaultFactory.sol';
import './interfaces/IStabilityPool.sol';
import './interfaces/IAuctionManager.sol';
import './interfaces/IMintableToken.sol';
import './interfaces/ILiquidationRouter.sol';

/**
 * @title LastResortLiquidation
 * @dev Contract to manage collateral and bad debt distribution for liquidation.
 */
contract LastResortLiquidation is Ownable, ReentrancyGuard {
    event VaultFactoryUpdated(address indexed _vaultFactory);

    using EnumerableSet for EnumerableSet.AddressSet;
    using SafeERC20 for IERC20;
    using SafeERC20 for IMintableToken;

    EnumerableSet.AddressSet private collateralSet;
    EnumerableSet.AddressSet private allowedSet;

    address public vaultFactory;

    mapping(address => uint256) public collateral;

    uint256 public badDebt;

    modifier onlyAllowed() {
        require(allowedSet.contains(msg.sender), 'not-allowed');
        _;
    }

    constructor() Ownable(msg.sender) {}

    /**
     * @dev Adds an address to the allowed set.
     * @param _allowed The address to add to the allowed set.
     */
    function addAllowed(address _allowed) external onlyOwner {
        require(_allowed != address(0x0), 'allowed-is-0');
        allowedSet.add(_allowed);
    }

    /**
     * @dev Removes an address from the allowed set.
     * @param _allowed The address to remove from the allowed set.
     */
    function removeAllowed(address _allowed) external onlyOwner {
        require(_allowed != address(0x0), 'allowed-is-0');
        allowedSet.remove(_allowed);
    }

    /**
     * @dev Gets the number of addresses in the allowed set.
     * @return The number of addresses in the allowed set.
     */
    function allowedLength() external view returns (uint256) {
        return allowedSet.length();
    }

    /**
     * @dev Gets the address at the specified index in the allowed set.
     * @param _index The index of the address.
     * @return The address at the specified index in the allowed set.
     */
    function allowedAt(uint256 _index) external view returns (address) {
        return allowedSet.at(_index);
    }

    /**
     * @dev Gets the number of addresses in the collateral set.
     * @return The number of addresses in the collateral set.
     */
    function collateralLength() external view returns (uint256) {
        return collateralSet.length();
    }

    /**
     * @dev Gets the address at the specified index in the collateral set.
     * @param _index The index of the address.
     * @return The address at the specified index in the collateral set.
     */
    function collateralAt(uint256 _index) external view returns (address) {
        return collateralSet.at(_index);
    }

    /**
     * @dev Sets the address of the vault factory.
     * @param _vaultFactory Address of the vault factory.
     */
    function setVaultFactory(address _vaultFactory) external onlyOwner {
        require(_vaultFactory != address(0x0), 'vault-factory-is-0');
        vaultFactory = _vaultFactory;
        emit VaultFactoryUpdated(_vaultFactory);
    }

    /**
     * @dev Adds collateral to the contract and updates the collateral balance.
     * @param _collateral The address of the collateral token.
     * @param _amount The amount of collateral to add.
     */
    function addCollateral(
        address _collateral,
        uint256 _amount
    ) external onlyAllowed {
        require(_collateral != address(0x0), 'collateral-is-0');
        require(_amount > 0, 'amount-is-0');

        collateralSet.add(_collateral);
        IERC20(_collateral).safeTransferFrom(
            msg.sender,
            address(this),
            _amount
        );

        collateral[_collateral] += _amount;
    }

    /**
     * @dev Withdraws collateral from the contract.
     * @param _collateral The address of the collateral token.
     * @param _amount The amount of collateral to withdraw.
     * @param _to The address to receive the withdrawn collateral.
     */
    function withdrawCollateral(
        address _collateral,
        uint256 _amount,
        address _to
    ) external onlyOwner {
        require(_collateral != address(0x0), 'collateral-is-0');
        require(_amount > 0, 'amount-is-0');

        collateral[_collateral] -= _amount;

        if (collateral[_collateral] == 0) collateralSet.remove(_collateral);

        IERC20(_collateral).safeTransfer(_to, _amount);
    }

    /**
     * @dev Adds bad debt to the contract.
     * @param _amount The amount of bad debt to add.
     */
    function addBadDebt(uint256 _amount) external onlyAllowed {
        require(_amount > 0, 'amount-is-0');
        badDebt += _amount;
    }

    /**
     * @dev Repays bad debt by burning stable tokens.
     * @param _amount The amount of stable tokens to burn.
     */
    function repayBadDebt(uint256 _amount) external onlyOwner {
        require(_amount > 0, 'amount-is-0');
        require(_amount <= badDebt, 'amount-too-high');

        IMintableToken _stable = IMintableToken(
            IVaultFactory(vaultFactory).stable()
        );
        _stable.safeTransferFrom(msg.sender, address(this), _amount);
        _stable.burn(_amount);

        badDebt -= _amount;
    }

    /**
     * @dev Distributes bad debt to a specific vault.
     * @param _vault The address of the vault to receive the bad debt.
     * @param _amount The amount of bad debt to distribute.
     */
    function distributeBadDebt(
        address _vault,
        uint256 _amount
    ) external onlyOwner {
        require(_vault != address(0x0), 'vault-is-0');
        require(_amount > 0, 'amount-is-0');
        require(_amount <= badDebt, 'amount-too-high');
        badDebt -= _amount;
        IVaultFactory _vaultFactory = IVaultFactory(vaultFactory);
        ILiquidationRouter _liquidationRouter = ILiquidationRouter(
            _vaultFactory.liquidationRouter()
        );
        _liquidationRouter.distributeBadDebt(_vault, _amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import '@openzeppelin/contracts/utils/ReentrancyGuard.sol';

import './interfaces/IVault.sol';
import './interfaces/IVaultFactory.sol';
import './interfaces/IStabilityPool.sol';
import './interfaces/IAuctionManager.sol';

/**
 * @title LiquidationRouter
 * @dev Handles liquidation and redistribution of collaterals and debts in the system.
 */
contract LiquidationRouter is Ownable, ReentrancyGuard {
    using EnumerableSet for EnumerableSet.AddressSet;

    using SafeERC20 for IERC20;
    event SeizedCollateralAdded(
        address indexed collateral,
        address indexed _vaultFactory,
        address indexed _vault,
        uint256 amount
    );
    event UnderWaterDebtAdded(
        address indexed _vaultFactory,
        address indexed _vault,
        uint256 debtAmount
    );
    event UnderWaterDebtRemoved(
        address indexed _vaultFactory,
        uint256 debtAmount
    );
    event VaultFactoryUpdated(address indexed _vaultFactory);
    event StabilityPoolUpdated(address indexed _stabilityPool);
    event AuctionManagerUpdated(address indexed _auctionManager);
    event LastResortLiquidationUpdated(address indexed _lastResortLiquidation);
    event BadDebtDistributed(address indexed _vault, uint256 amount);

    uint256 public underWaterDebt;

    address public vaultFactory;
    address public stabilityPool;
    address public auctionManager;
    address public lastResortLiquidation;

    EnumerableSet.AddressSet private collateralSet;

    mapping(address => uint256) public collateral;

    constructor() Ownable(msg.sender) {}

    /**
     * @dev Sets the last resort liquidation contract address.
     * @param _lastResortLiquidation Address of the last resort liquidation contract.
     */
    function setLastResortLiquidation(
        address _lastResortLiquidation
    ) external onlyOwner {
        require(
            _lastResortLiquidation != address(0x0),
            'last-resort-liquidation-is-0'
        );
        lastResortLiquidation = _lastResortLiquidation;
        emit LastResortLiquidationUpdated(_lastResortLiquidation);
    }

    /**
     * @dev Sets the stability pool contract address.
     * @param _stabilityPool Address of the stability pool contract.
     */
    function setStabilityPool(address _stabilityPool) external onlyOwner {
        require(_stabilityPool != address(0x0), 'stability-pool-is-0');
        stabilityPool = _stabilityPool;
        emit StabilityPoolUpdated(_stabilityPool);
    }

    /**
     * @dev Sets the auction manager contract address.
     * @param _auctionManager Address of the auction manager contract.
     */
    function setAuctionManager(address _auctionManager) external onlyOwner {
        require(_auctionManager != address(0x0), 'auction-manager-is-0');
        auctionManager = _auctionManager;
        emit AuctionManagerUpdated(_auctionManager);
    }

    modifier onlyVault() {
        require(
            IVaultFactory(vaultFactory).containsVault(msg.sender),
            'not-a-vault'
        );
        _;
    }

    modifier onlyAllowed() {
        require(msg.sender == stabilityPool, 'not-allowed');
        _;
    }

    modifier onlyLastResortLiquidation() {
        require(
            msg.sender == lastResortLiquidation,
            'not-last-resort-liquidation'
        );
        _;
    }

    /**
     * @dev Checks if a specific collateral token is registered.
     * @param _collateral Address of the collateral token to check.
     * @return bool indicating the presence of the collateral token.
     */
    function containsCollateral(
        address _collateral
    ) external view returns (bool) {
        return collateralSet.contains(_collateral);
    }

    /**
     * @dev Returns the count of registered collateral tokens.
     * @return uint256 representing the count of collateral tokens.
     */
    function collateralsLength() external view returns (uint256) {
        return collateralSet.length();
    }

    /**
     * @dev Gets the collateral token at a specific index in the list of registered collaterals.
     * @param _index Index of the collateral token.
     * @return address representing the collateral token address.
     */
    function collateralAt(uint256 _index) external view returns (address) {
        return collateralSet.at(_index);
    }

    /**
     * @dev Gets all the registered collateral tokens.
     * @return address[] memory representing the list of collateral token addresses.
     */
    function collaterals() external view returns (address[] memory) {
        address[] memory _collaterals = new address[](collateralSet.length());
        for (uint256 i = 0; i < collateralSet.length(); i++) {
            _collaterals[i] = collateralSet.at(i);
        }
        return _collaterals;
    }

    /**
     * @dev Sets the vault factory contract address.
     * @param _vaultFactory Address of the vault factory contract.
     */
    function setVaultFactory(address _vaultFactory) external onlyOwner {
        require(_vaultFactory != address(0x0), 'vault-factory-is-0');
        require(
            IVaultFactory(_vaultFactory).liquidationRouter() == address(this),
            'wrong-liquidation-router'
        );
        vaultFactory = _vaultFactory;
        emit VaultFactoryUpdated(_vaultFactory);
    }

    /**
     * @dev Adds seized collateral to the contract.
     * @param _collateral Address of the seized collateral.
     * @param _amount Amount of seized collateral.
     */
    function addSeizedCollateral(
        address _collateral,
        uint256 _amount
    ) external onlyVault {
        IERC20(_collateral).safeTransferFrom(
            msg.sender,
            address(this),
            _amount
        );

        IERC20(_collateral).safeIncreaseAllowance(stabilityPool, _amount);
        IERC20(_collateral).safeIncreaseAllowance(auctionManager, _amount);

        collateralSet.add(_collateral);
        collateral[_collateral] += _amount;
        emit SeizedCollateralAdded(
            _collateral,
            vaultFactory,
            msg.sender,
            _amount
        );
    }

    /**
     * @dev Adds underwater debt for a vault and increases the total underwater debt for the system.
     * @param _vault Address of the vault.
     * @param _amount Amount of underwater debt.
     */
    function addUnderWaterDebt(
        address _vault,
        uint256 _amount
    ) external onlyVault {
        underWaterDebt += _amount;
        emit UnderWaterDebtAdded(vaultFactory, _vault, _amount);
    }

    /**
     * @dev Removes underwater debt from the system and decreases the total underwater debt.
     * @param _amount Amount of underwater debt to be removed.
     */
    function _removeUnderWaterDebt(uint256 _amount) internal {
        underWaterDebt -= _amount;
        emit UnderWaterDebtRemoved(vaultFactory, _amount);
    }

    /**
     * @dev Withdraws liquidated collateral.
     * @param _collateral Address of the liquidated collateral.
     * @param _to Address to receive the liquidated collateral.
     * @param _amount Amount of liquidated collateral to withdraw.
     */
    function withdrawLiquidatedCollateral(
        address _collateral,
        address _to,
        uint256 _amount
    ) external onlyOwner {
        IERC20(_collateral).safeTransfer(_to, _amount);
        collateral[_collateral] -= _amount;
        if (collateral[_collateral] == 0) {
            collateralSet.remove(_collateral);
        }
    }

    /**
     * @dev Removes all collaterals from the contract.
     * This function sets the collateral amount for each collateral token to 0.
     */
    function _removeAllCollaterals() internal {
        uint256 _length = collateralSet.length();
        for (uint256 i; i < _length; i++) {
            address _collateral = collateralSet.at(i);
            collateral[_collateral] = 0;
        }
    }

    /**
     * @dev Initiates liquidation or auction if necessary.
     */
    function tryLiquidate() external nonReentrant {
        require(underWaterDebt > 0, 'no-underwater-debt');
        uint256 _stabilityPoolDeposit = IStabilityPool(stabilityPool)
            .totalDeposit();
        if (_stabilityPoolDeposit >= underWaterDebt) {
            IStabilityPool(stabilityPool).liquidate();
        } else {
            IAuctionManager(auctionManager).newAuction();
        }
        _removeAllCollaterals();
        _removeUnderWaterDebt(underWaterDebt);
    }

    /**
     * @dev Distributes bad debt in the system.
     * @param _vault Address of the vault with bad debt.
     * @param _amount Amount of bad debt to distribute.
     */
    function distributeBadDebt(
        address _vault,
        uint256 _amount
    ) external onlyLastResortLiquidation {
        IVaultFactory(vaultFactory).distributeBadDebt(_vault, _amount);
        emit BadDebtDistributed(_vault, _amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
import './interfaces/IMintableToken.sol';

/// @title implements owner of the MintableToken contract
contract MintableTokenOwner is Ownable {
    IMintableToken public immutable token;
    mapping(address => bool) public minters;

    event MinterAdded(address newMinter);

    // solhint-disable-next-line func-visibility
    constructor(address _token) Ownable(msg.sender) {
        token = IMintableToken(_token);
    }

    /// @dev mints tokens to the recipient, to be called from owner
    /// @param _recipient address to mint
    /// @param _amount amount to be minted
    function mint(address _recipient, uint256 _amount) public {
        require(
            minters[msg.sender],
            'MintableTokenOwner:mint: the sender must be in the minters list'
        );
        token.mint(_recipient, _amount);
    }

    function transferTokenOwnership(address _newOwner) public onlyOwner {
        token.transferOwnership(_newOwner);
    }

    /// @dev adds new minter
    /// @param _newMinter address of new minter
    function addMinter(address _newMinter) public onlyOwner {
        minters[_newMinter] = true;
        emit MinterAdded(_newMinter);
    }

    /// @dev removes minter from minter list
    /// @param _minter address of the minter
    function revokeMinter(address _minter) public onlyOwner {
        minters[_minter] = false;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@chainlink/contracts/src/v0.8/interfaces/AggregatorV2V3Interface.sol';
import '../interfaces/IPriceFeed.sol';
import '../interfaces/ITokenPriceFeed.sol';
import '../utils/constants.sol';

/**
 * @title ChainlinkPriceOracle
 * @dev Retrieves and manages price data from Chainlink's Oracle for specified tokens.
 */
contract ChainlinkPriceOracle is IPriceFeed, Constants {
    AggregatorV2V3Interface public immutable oracle;
    address public immutable override token;
    uint256 public immutable precision;
    uint256 public updateThreshold = 24 hours;

    /**
     * @dev Initializes the Chainlink price feed with the specified oracle and token.
     * @param _oracle The address of the Chainlink oracle contract.
     * @param _token The address of the associated token.
     */
    constructor(address _token, address _oracle) {
        require(
            _oracle != address(0x0),
            'oracle-is-zero-address'
        );
        require(
            _token != address(0x0),
            'token-is-zero-address'
        );
        token = _token;
        oracle = AggregatorV2V3Interface(_oracle);
        uint8 decimals = oracle.decimals();
        require(decimals > 0, 'decimals-is-zero');
        precision = 10 ** decimals;
    }

    /**
     * @dev Retrieves the current price from the Chainlink oracle, ensuring it is not outdated.
     * @return The latest recorded price of the associated token.
     */
    function price() public view virtual override returns (uint256) {
        (, int256 _price, , uint256 _timestamp, ) = oracle.latestRoundData();
        require(_price > 0, 'invalid-price');
        require(
            block.timestamp - _timestamp <= updateThreshold,
            'price-outdated'
        );
        return (uint256(_price) * DECIMAL_PRECISION) / precision;
    }

    /**
     * @dev Retrieves the current price point.
     * @return The current price of the associated token.
     */
    function pricePoint() public view override returns (uint256) {
        return price();
    }

    /**
     * @dev Emits a price update signal for the associated token.
     */
    function emitPriceSignal() public override {
        emit PriceUpdate(token, price(), price());
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '../interfaces/IPriceFeed.sol';

contract FixedPriceOracle is IPriceFeed {
    IPriceFeed public immutable priceFeed = IPriceFeed(address(0));
    IPriceFeed public immutable conversionPriceFeed = IPriceFeed(address(0));
    address public immutable override token;
    uint256 public fixedPrice;
    constructor(address _token, uint256 _price) {
        fixedPrice = _price;
        token = _token;
    }

    function price() public view override returns (uint256) {
        return fixedPrice;
    }

    function pricePoint() public view override returns (uint256) {
        return price();
    }

    function emitPriceSignal() public {
        emit PriceUpdate(token, price(), price());
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';

/**
 * @title OwnerProxy
 * @dev Allows the main owner to add fine-grained permissions to other operators.
 */
contract OwnerProxy is Context, Ownable {
    mapping(uint256 => bool) public permissions;

    event PermissionAdded(
        address indexed caller,
        address targetAddress,
        bytes4 targetSignature,
        uint256 permissionHash
    );
    event PermissionRemoved(uint256 indexed permissionHash);
    event Executed(
        address indexed caller,
        address indexed target,
        string func,
        bytes data
    );

    constructor() Ownable(msg.sender) {}

    /**
     * @dev Adds permission for a specific caller to execute a function on a target address.
     * @param caller The address allowed to call the function.
     * @param targetAddress The target address where the function will be called.
     * @param targetSignature The function signature to be executed.
     */
    function addPermission(
        address caller,
        address targetAddress,
        bytes4 targetSignature
    ) public onlyOwner {
        require(caller != address(0), 'invalid-caller-address');
        require(targetAddress != address(0), 'invalid-target-address');
        uint256 _hash = uint256(
            keccak256(abi.encodePacked(caller, targetAddress, targetSignature))
        );
        permissions[_hash] = true;
        emit PermissionAdded(caller, targetAddress, targetSignature, _hash);
    }

    /**
     * @dev Removes a specific permission.
     * @param permissionHash The hash of the permission to be removed.
     */
    function removePermission(uint256 permissionHash) public onlyOwner {
        delete permissions[permissionHash];
        emit PermissionRemoved(permissionHash);
    }

    /**
     * @dev Executes a function on a target address only if the caller has the required permission.
     * @param target The contract address where the function will be called.
     * @param func The name of the function to be executed.
     * @param data The data to be passed to the function.
     * @return _result The result of the function execution.
     */
    function execute(
        address target,
        string memory func,
        bytes memory data
    ) public returns (bytes memory _result) {
        bytes4 _targetSignature = bytes4(keccak256(bytes(func)));
        uint256 _hash = uint256(
            keccak256(abi.encodePacked(_msgSender(), target, _targetSignature))
        );
        require(permissions[_hash], 'invalid-permission');
        emit Executed(_msgSender(), target, func, data);
        _result = Address.functionCall(
            target,
            bytes.concat(_targetSignature, data)
        );
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
// import openzeppelin reentrancy guard
import '@openzeppelin/contracts/utils/ReentrancyGuard.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import './utils/constants.sol';
import './interfaces/IVaultFactory.sol';
import './interfaces/IMintableToken.sol';
import './interfaces/IVault.sol';
import './interfaces/ILiquidationRouter.sol';

/**
 * @title StabilityPool
 * @dev A smart contract responsible for liquidating vaults and rewarding depositors with collateral redeemed.
 * @notice is used to liquidate vaults and reward depositors with collateral redeemed
 */
contract StabilityPool is Ownable, ReentrancyGuard, Constants {
    using SafeERC20 for IERC20;

    // A structure defining token addresses and their respective 'Stable' values
    struct TokenToS {
        address tokenAddress;
        uint256 S_value;
    }

    // A structure defining token addresses and their corresponding uint256 values
    struct TokenToUint256 {
        address tokenAddress;
        uint256 value;
    }

    // A structure that holds snapshots of token balances, 'P' and 'G', and epoch information
    struct Snapshots {
        TokenToS[] tokenToSArray;
        uint256 P;
        uint256 G;
        uint128 scale;
        uint128 epoch;
    }

    IVaultFactory public factory;
    IMintableToken public immutable stableCoin;

    IERC20 public immutable tbankToken;

    // Track total deposits and error offsets
    uint256 public totalDeposit;
    mapping(address => uint256) public collateralToLastErrorOffset;
    uint256 public lastStableCoinLossErrorOffset;
    mapping(address => uint256) public deposits;
    mapping(address => Snapshots) public depositSnapshots; // depositor address -> snapshots struct

    // Variables related to TBANK rewards and error tracking
    uint256 public tbankPerMinute;
    uint256 public totalTBANKRewardsLeft;
    uint256 public latestTBANKRewardTime;
    // Error tracker for the error correction in the TBANK redistribution calculation
    uint256 public lastTBANKError;
    /*  Product 'P': Running product by which to multiply an initial deposit, in order to find the current compounded deposit,
     * after a series of liquidations have occurred, each of which cancel some StableCoin debt with the deposit.
     *
     * During its lifetime, a deposit's value evolves from d_t to d_t * P / P_t , where P_t
     * is the snapshot of P taken at the instant the deposit was made. 18-digit decimal.
     */
    uint256 public P;

    uint256 public constant SCALE_FACTOR = 1e9;

    uint256 public constant SECONDS_IN_ONE_MINUTE = 60;

    // Each time the scale of P shifts by SCALE_FACTOR, the scale is incremented by 1
    uint128 public currentScale;

    // With each offset that fully empties the Pool, the epoch is incremented by 1
    uint128 public currentEpoch;

    /* Collateral Gain sum 'S': During its lifetime, each deposit d_t earns an Collateral gain of ( d_t * [S - S_t] )/P_t, where S_t
     * is the depositor's snapshot of S taken at the time t when the deposit was made.
     *
     * The 'S' sums are stored in a nested mapping (epoch => scale => sum):
     *
     * - The inner mapping records the sum S at different scales
     * - The outer mapping records the (scale => sum) mappings, for different epochs.
     */
    mapping(uint128 => mapping(uint128 => TokenToS[]))
        public epochToScaleToTokenToSum;

    /*
     * Similarly, the sum 'G' is used to calculate TBANK gains. During it's lifetime, each deposit d_t earns a TBANK gain of
     *  ( d_t * [G - G_t] )/P_t, where G_t is the depositor's snapshot of G taken at time t when  the deposit was made.
     *
     *  TBANK reward events occur are triggered by depositor operations (new deposit, topup, withdrawal), and liquidations.
     *  In each case, the TBANK reward is issued (i.e. G is updated), before other state changes are made.
     */
    mapping(uint128 => mapping(uint128 => uint256)) public epochToScaleToG;

    event Deposit(address _contributor, uint256 _amount);
    event TotalDepositUpdated(uint256 _newValue);
    event Withdraw(address _contributor, uint256 _amount);

    // Events
    // solhint-disable-next-line event-name-camelcase
    event TBANKRewardRedeemed(address _contributor, uint256 _amount);
    event TBANKRewardIssue(uint256 issuance, uint256 _totalTBANKRewardsLeft);
    event TBANKPerMinuteUpdated(uint256 _newAmount);
    event TotalTBANKRewardsUpdated(uint256 _newAmount);
    // solhint-disable-next-line event-name-camelcase
    event CollateralRewardRedeemed(
        address _contributor,
        address _tokenAddress,
        uint256 _amount
    );
    event DepositSnapshotUpdated(
        address indexed _depositor,
        uint256 _P,
        uint256 _G,
        uint256 _newDepositValue
    );

    /* solhint-disable event-name-camelcase */
    event P_Updated(uint256 _P);
    event S_Updated(
        address _tokenAddress,
        uint256 _S,
        uint128 _epoch,
        uint128 _scale
    );
    event G_Updated(uint256 _G, uint128 _epoch, uint128 _scale);
    /* solhint-disable event-name-camelcase */
    event EpochUpdated(uint128 _currentEpoch);
    event ScaleUpdated(uint128 _currentScale);

    /**
     * @notice Initializes the StabilityPool contract with the given Vault factory and TBANK token addresses.
     * @dev The constructor sets up essential contract parameters upon deployment.
     * @param _factory Address of the Vault Factory contract responsible for creating Vault instances.
     * @param _tbankToken Address of the TBANK token to be used within the Vault system.
     */
    constructor(address _factory, address _tbankToken) Ownable(msg.sender) {
        require(_factory != address(0x0), 'factory-is-0');
        require(_tbankToken != address(0x0), 'tbank-is-0');
        factory = IVaultFactory(_factory);
        stableCoin = IMintableToken(address(IVaultFactory(_factory).stable()));
        tbankToken = IERC20(_tbankToken);
        P = DECIMAL_PRECISION;
    }

    /// @dev to deposit StableCoin into StabilityPool this must be protected against a reentrant attack from the arbitrage
    /// @param  _amount amount to deposit
    function deposit(uint256 _amount) public nonReentrant {
        // address depositor = msg.sender;
        require(_amount > 0, 'amount-is-0');

        stableCoin.transferFrom(msg.sender, address(this), _amount);
        uint256 initialDeposit = deposits[msg.sender];
        _redeemReward();

        Snapshots memory snapshots = depositSnapshots[msg.sender];

        uint256 compoundedDeposit = _getCompoundedDepositFromSnapshots(
            initialDeposit,
            snapshots
        );
        // uint256 newValue = compoundedDeposit + _amount;
        uint256 newTotalDeposit = totalDeposit + _amount;
        totalDeposit = newTotalDeposit;

        _updateDepositAndSnapshots(msg.sender, compoundedDeposit + _amount);

        emit Deposit(msg.sender, _amount);
        emit TotalDepositUpdated(newTotalDeposit);
    }

    /// @dev to withdraw StableCoin that was not spent if this function is called in a reentrantway during arbitrage  it
    /// @dev would skew the token allocation and must be protected against
    /// @param  _amount amount to withdraw
    function withdraw(uint256 _amount) public nonReentrant {
        uint256 contributorDeposit = deposits[msg.sender];
        require(_amount > 0, 'amount-is-0');
        require(contributorDeposit > 0, 'deposit-is-0');
        _redeemReward();

        Snapshots memory snapshots = depositSnapshots[msg.sender];

        uint256 compoundedDeposit = _getCompoundedDepositFromSnapshots(
            contributorDeposit,
            snapshots
        );
        uint256 calculatedAmount = compoundedDeposit > _amount
            ? _amount
            : compoundedDeposit;
        uint256 newValue = compoundedDeposit - calculatedAmount;

        totalDeposit = totalDeposit - calculatedAmount;

        _updateDepositAndSnapshots(msg.sender, newValue);

        stableCoin.transfer(msg.sender, calculatedAmount);
        emit Withdraw(msg.sender, calculatedAmount);
        emit TotalDepositUpdated(totalDeposit);
    }

    /// @dev to withdraw collateral rewards earned after liquidations
    /// @dev this function does not provide an opportunity for a reentrancy attack
    function redeemReward() external {
        Snapshots memory snapshots = depositSnapshots[msg.sender];
        uint256 contributorDeposit = deposits[msg.sender];

        uint256 compoundedDeposit = _getCompoundedDepositFromSnapshots(
            contributorDeposit,
            snapshots
        );
        _redeemReward();
        _updateDepositAndSnapshots(msg.sender, compoundedDeposit);
    }

    function setVaultFactory(address _factory) external onlyOwner {
        require(_factory != address(0x0), 'factory-is-0');
        factory = IVaultFactory(_factory);
    }

    /// @dev liquidates vault, must be called from that vault
    /// @dev this function does not provide an opportunity for a reentrancy attack even though it would make the arbitrage
    /// @dev fail because of the lowering of the stablecoin balance
    /// @notice must be called by the valid vault
    function liquidate() external {
        require(
            msg.sender == factory.liquidationRouter(),
            'not-liquidation-router'
        );
        IVaultFactory factory_cached = factory;

        ILiquidationRouter _liquidationRouter = ILiquidationRouter(
            factory_cached.liquidationRouter()
        );
        uint256 _underWaterDebt = _liquidationRouter.underWaterDebt();
        address[] memory _collaterals = _liquidationRouter.collaterals();
        uint256 _collateralCount = _collaterals.length;

        uint256 totalStableCoin = totalDeposit; // cached to save an SLOAD

        for (uint256 i; i < _collateralCount; i++) {
            IERC20 _collateralToken = IERC20(_collaterals[i]);
            uint256 _collateralAmount = _liquidationRouter.collateral(
                address(_collateralToken)
            );
            _collateralToken.safeTransferFrom(
                address(_liquidationRouter),
                address(this),
                _collateralAmount
            );

            (
                uint256 collateralGainPerUnitStaked,
                uint256 stableCoinLossPerUnitStaked
            ) = _computeRewardsPerUnitStaked(
                    address(_collateralToken),
                    _collateralAmount,
                    _underWaterDebt,
                    totalStableCoin
                );

            _updateRewardSumAndProduct(
                address(_collateralToken),
                collateralGainPerUnitStaked,
                stableCoinLossPerUnitStaked
            );
        }

        _triggerTBANKdistribution();

        stableCoin.burn(_underWaterDebt);
        uint256 newTotalDeposit = totalStableCoin - _underWaterDebt;
        totalDeposit = newTotalDeposit;
        emit TotalDepositUpdated(newTotalDeposit);
        //factory_cached.emitLiquidationEvent(address(collateralToken), msg.sender, address(this), vaultCollateral);
    }

    /**
     * @dev Gets the current withdrawable deposit of a specified staker.
     * @param staker The address of the staker
     * @return uint256 The withdrawable deposit amount
     */ function getWithdrawableDeposit(
        address staker
    ) public view returns (uint256) {
        uint256 initialDeposit = deposits[staker];
        Snapshots memory snapshots = depositSnapshots[staker];
        return _getCompoundedDepositFromSnapshots(initialDeposit, snapshots);
    }

    /**
     * @dev Retrieves the collateral reward of a specified `_depositor` for a specific `_token`.
     * @param _token The address of the collateral token
     * @param _depositor The address of the depositor
     * @return uint256 The collateral reward amount
     */
    function getCollateralReward(
        address _token,
        address _depositor
    ) external view returns (uint256) {
        Snapshots memory _snapshots = depositSnapshots[_depositor];
        uint256 _initialDeposit = deposits[_depositor];

        uint128 epochSnapshot = _snapshots.epoch;
        uint128 scaleSnapshot = _snapshots.scale;

        TokenToS[] memory tokensToSum_cached = epochToScaleToTokenToSum[
            epochSnapshot
        ][scaleSnapshot];
        uint256 tokenArrayLength = tokensToSum_cached.length;

        TokenToS memory cachedS;
        for (uint128 i = 0; i < tokenArrayLength; i++) {
            TokenToS memory S = tokensToSum_cached[i];
            if (S.tokenAddress == _token) {
                cachedS = S;
                break;
            }
        }
        if (cachedS.tokenAddress == address(0)) return 0;
        uint256 relatedSValue_snapshot;
        for (uint128 i = 0; i < _snapshots.tokenToSArray.length; i++) {
            TokenToS memory S_snapsot = _snapshots.tokenToSArray[i];
            if (S_snapsot.tokenAddress == _token) {
                relatedSValue_snapshot = S_snapsot.S_value;
                break;
            }
        }
        TokenToS[] memory nextTokensToSum_cached = epochToScaleToTokenToSum[
            epochSnapshot
        ][scaleSnapshot + 1];
        uint256 nextScaleS;
        for (uint128 i = 0; i < nextTokensToSum_cached.length; i++) {
            TokenToS memory nextScaleTokenToS = nextTokensToSum_cached[i];
            if (nextScaleTokenToS.tokenAddress == _token) {
                nextScaleS = nextScaleTokenToS.S_value;
                break;
            }
        }

        uint256 P_Snapshot = _snapshots.P;

        uint256 collateralGain = _getCollateralGainFromSnapshots(
            _initialDeposit,
            cachedS.S_value,
            nextScaleS,
            relatedSValue_snapshot,
            P_Snapshot
        );

        return collateralGain;
    }

    /**
     * @dev Retrieves the TBANK reward of a specified `_depositor`.
     * @param _depositor The address of the user
     * @return uint256 The TBANK reward amount
     */
    function getDepositorTBANKGain(
        address _depositor
    ) external view returns (uint256) {
        uint256 totalTBANKRewardsLeft_cached = totalTBANKRewardsLeft;
        uint256 totalStableCoin = totalDeposit;
        if (
            totalTBANKRewardsLeft_cached == 0 ||
            tbankPerMinute == 0 ||
            totalStableCoin == 0
        ) {
            return 0;
        }

        uint256 _tbankIssuance = tbankPerMinute *
            ((block.timestamp - latestTBANKRewardTime) / SECONDS_IN_ONE_MINUTE);
        if (totalTBANKRewardsLeft_cached < _tbankIssuance) {
            _tbankIssuance = totalTBANKRewardsLeft_cached;
        }

        uint256 tbankGain = (_tbankIssuance * DECIMAL_PRECISION + lastTBANKError) /
            totalStableCoin;
        uint256 marginalTBANKGain = tbankGain * P;

        return _getDepositorTBANKGain(_depositor, marginalTBANKGain);
    }

    /**
     * @dev Sets the amount of TBANK tokens per minute for rewards.
     * @param _tbankPerMinute The TBANK tokens per minute to be set
     */
    function setTBANKPerMinute(uint256 _tbankPerMinute) external onlyOwner {
        _triggerTBANKdistribution();
        tbankPerMinute = _tbankPerMinute;
        emit TBANKPerMinuteUpdated(tbankPerMinute);
    }

    /**
     * @dev Sets the total amount of TBANK tokens to be rewarded.
     * It pays per minute until it reaches the specified rewarded amount.
     */
    function setTBANKAmountForRewards() external onlyOwner {
        _triggerTBANKdistribution();
        totalTBANKRewardsLeft = tbankToken.balanceOf(address(this));
        emit TotalTBANKRewardsUpdated(totalTBANKRewardsLeft);
    }

    /**
     * @dev Redeems rewards, calling internal functions for collateral and TBANK rewards.
     * Private function for internal use.
     */
    function _redeemReward() private {
        _redeemCollateralReward();
        _triggerTBANKdistribution();
        _redeemTBANKReward();
    }

    /**
     * @notice Allows a depositor to redeem collateral rewards.
     */
    function _redeemCollateralReward() internal {
        address depositor = msg.sender;
        TokenToUint256[]
            memory depositorCollateralGains = _getDepositorCollateralGains(
                depositor
            );
        _sendCollateralRewardsToDepositor(depositorCollateralGains);
    }

    /**
     * @notice Allows a depositor to redeem TBANK rewards.
     */
    function _redeemTBANKReward() internal {
        address depositor = msg.sender;
        uint256 depositorTBANKGain = _getDepositorTBANKGain(depositor, 0);
        _sendTBANKRewardsToDepositor(depositorTBANKGain);
        emit TBANKRewardRedeemed(depositor, depositorTBANKGain);
    }

    /**
     * @dev Updates user deposit snapshot data for a new deposit value.
     * @param _depositor The address of the depositor.
     * @param _newValue The new deposit value.
     */
    function _updateDepositAndSnapshots(
        address _depositor,
        uint256 _newValue
    ) private {
        deposits[_depositor] = _newValue;
        if (_newValue == 0) {
            delete depositSnapshots[_depositor];
            emit DepositSnapshotUpdated(_depositor, 0, 0, 0);
            return;
        }
        uint128 cachedEpoch = currentEpoch;
        uint128 cachedScale = currentScale;
        TokenToS[] storage cachedTokenToSArray = epochToScaleToTokenToSum[
            cachedEpoch
        ][cachedScale]; // TODO: maybe remove and read twice?
        uint256 cachedP = P;
        uint256 cachedG = epochToScaleToG[cachedEpoch][cachedScale];

        depositSnapshots[_depositor].tokenToSArray = cachedTokenToSArray; // TODO
        depositSnapshots[_depositor].P = cachedP;
        depositSnapshots[_depositor].G = cachedG;
        depositSnapshots[_depositor].scale = cachedScale;
        depositSnapshots[_depositor].epoch = cachedEpoch;
        emit DepositSnapshotUpdated(_depositor, cachedP, cachedG, _newValue);
    }

    /**
     * @notice Updates the reward sums and product based on collateral and stablecoin changes.
     * @dev This function updates the reward sums and product based on changes in collateral and stablecoin values.
     * @param _collateralTokenAddress Address of the collateral token.
     * @param _collateralGainPerUnitStaked Collateral gains per unit staked.
     * @param _stableCoinLossPerUnitStaked Stablecoin losses per unit staked.
     */
    function _updateRewardSumAndProduct(
        address _collateralTokenAddress,
        uint256 _collateralGainPerUnitStaked,
        uint256 _stableCoinLossPerUnitStaked
    ) internal {
        assert(_stableCoinLossPerUnitStaked <= DECIMAL_PRECISION);

        uint128 currentScaleCached = currentScale;
        uint128 currentEpochCached = currentEpoch;
        uint256 currentS;
        uint256 currentSIndex;
        bool _found;
        TokenToS[] memory currentTokenToSArray = epochToScaleToTokenToSum[
            currentEpochCached
        ][currentScaleCached];
        for (uint128 i = 0; i < currentTokenToSArray.length; i++) {
            if (
                currentTokenToSArray[i].tokenAddress == _collateralTokenAddress
            ) {
                currentS = currentTokenToSArray[i].S_value;
                currentSIndex = i;
                _found = true;
            }
        }
        /*
         * Calculate the new S first, before we update P.
         * The Collateral gain for any given depositor from a liquidation depends on the value of their deposit
         * (and the value of totalDeposits) prior to the Stability being depleted by the debt in the liquidation.
         *
         * Since S corresponds to Collateral gain, and P to deposit loss, we update S first.
         */
        uint256 marginalCollateralGain = _collateralGainPerUnitStaked * P;
        uint256 newS = currentS + marginalCollateralGain;
        if (currentTokenToSArray.length == 0 || !_found) {
            TokenToS memory tokenToS;
            tokenToS.S_value = newS;
            tokenToS.tokenAddress = _collateralTokenAddress;
            epochToScaleToTokenToSum[currentEpochCached][currentScaleCached]
                .push() = tokenToS;
        } else {
            epochToScaleToTokenToSum[currentEpochCached][currentScaleCached][
                currentSIndex
            ].S_value = newS;
        }
        emit S_Updated(
            _collateralTokenAddress,
            newS,
            currentEpochCached,
            currentScaleCached
        );
        _updateP(_stableCoinLossPerUnitStaked, true);
    }

    function _updateP(
        uint256 _stableCoinChangePerUnitStaked,
        bool loss
    ) internal {
        /*
         * The newProductFactor is the factor by which to change all deposits, due to the depletion of Stability Pool StableCoin in the liquidation.
         * We make the product factor 0 if there was a pool-emptying. Otherwise, it is (1 - StableCoinLossPerUnitStaked)
         */
        uint256 newProductFactor;
        if (loss) {
            newProductFactor = uint256(
                DECIMAL_PRECISION - _stableCoinChangePerUnitStaked
            );
        } else {
            newProductFactor = uint256(
                DECIMAL_PRECISION + _stableCoinChangePerUnitStaked
            );
        }
        uint256 currentP = P;
        uint256 newP;
        // If the Stability Pool was emptied, increment the epoch, and reset the scale and product P
        if (newProductFactor == 0) {
            currentEpoch += 1;
            emit EpochUpdated(currentEpoch);
            currentScale = 0;
            emit ScaleUpdated(0);
            newP = DECIMAL_PRECISION;

            // If multiplying P by a non-zero product factor would reduce P below the scale boundary, increment the scale
        } else if (
            (currentP * newProductFactor) / DECIMAL_PRECISION < SCALE_FACTOR
        ) {
            newP =
                (currentP * newProductFactor * SCALE_FACTOR) /
                DECIMAL_PRECISION;
            currentScale += 1;
            emit ScaleUpdated(currentScale);
        } else {
            newP = (currentP * newProductFactor) / DECIMAL_PRECISION;
        }

        assert(newP > 0);
        P = newP;

        emit P_Updated(newP);
    }

    /**
     * @dev Updates G when a new TBANK amount is issued.
     * @param _tbankIssuance The new TBANK issuance amount
     */
    function _updateG(uint256 _tbankIssuance) internal {
        uint256 totalStableCoin = totalDeposit; // cached to save an SLOAD
        /*
         * When total deposits is 0, G is not updated. In this case, the TBANK issued can not be obtained by later
         * depositors - it is missed out on, and remains in the balanceof the Stability Pool.
         *
         */
        if (totalStableCoin == 0 || _tbankIssuance == 0) {
            return;
        }

        uint256 tbankPerUnitStaked;
        tbankPerUnitStaked = _computeTBANKPerUnitStaked(
            _tbankIssuance,
            totalStableCoin
        );

        uint256 marginalTBANKGain = tbankPerUnitStaked * P;
        uint128 currentEpoch_cached = currentEpoch;
        uint128 currentScale_cached = currentScale;

        uint256 newEpochToScaleToG = epochToScaleToG[currentEpoch_cached][
            currentScale_cached
        ] + marginalTBANKGain;
        epochToScaleToG[currentEpoch_cached][
            currentScale_cached
        ] = newEpochToScaleToG;

        emit G_Updated(
            newEpochToScaleToG,
            currentEpoch_cached,
            currentScale_cached
        );
    }

    /**
     * @dev Retrieves the collateral gains of a specified `_depositor`.
     * @param _depositor The address of the depositor
     * @return TokenToUint256[] An array containing collateral gain information
     */
    function _getDepositorCollateralGains(
        address _depositor
    ) internal view returns (TokenToUint256[] memory) {
        uint256 initialDeposit = deposits[_depositor];
        if (initialDeposit == 0) {
            TokenToUint256[] memory x;
            return x;
        }

        Snapshots memory snapshots = depositSnapshots[_depositor];

        TokenToUint256[]
            memory gainPerCollateralArray = _getCollateralGainsArrayFromSnapshots(
                initialDeposit,
                snapshots
            );
        return gainPerCollateralArray;
    }

    // todo!
    function _getCollateralGainsArrayFromSnapshots(
        uint256 _initialDeposit,
        Snapshots memory _snapshots
    ) internal view returns (TokenToUint256[] memory) {
        /*
         * Grab the sum 'S' from the epoch at which the stake was made. The Collateral gain may span up to one scale change.
         * If it does, the second portion of the Collateral gain is scaled by 1e9.
         * If the gain spans no scale change, the second portion will be 0.
         */
        uint128 epochSnapshot = _snapshots.epoch;
        uint128 scaleSnapshot = _snapshots.scale;
        TokenToS[] memory tokensToSum_cached = epochToScaleToTokenToSum[
            epochSnapshot
        ][scaleSnapshot];
        uint256 tokenArrayLength = tokensToSum_cached.length;
        TokenToUint256[] memory CollateralGainsArray = new TokenToUint256[](
            tokenArrayLength
        );
        for (uint128 i = 0; i < tokenArrayLength; i++) {
            TokenToS memory S = tokensToSum_cached[i];
            uint256 relatedS_snapshot;
            for (uint128 j = 0; j < _snapshots.tokenToSArray.length; j++) {
                TokenToS memory S_snapsot = _snapshots.tokenToSArray[j];
                if (S_snapsot.tokenAddress == S.tokenAddress) {
                    relatedS_snapshot = S_snapsot.S_value;
                    break;
                }
            }
            TokenToS[] memory nextTokensToSum_cached = epochToScaleToTokenToSum[
                epochSnapshot
            ][scaleSnapshot + 1];
            uint256 nextScaleS;
            for (uint128 j = 0; j < nextTokensToSum_cached.length; j++) {
                TokenToS memory nextScaleTokenToS = nextTokensToSum_cached[j];
                if (nextScaleTokenToS.tokenAddress == S.tokenAddress) {
                    nextScaleS = nextScaleTokenToS.S_value;
                    break;
                }
            }
            uint256 P_Snapshot = _snapshots.P;

            CollateralGainsArray[i].value = _getCollateralGainFromSnapshots(
                _initialDeposit,
                S.S_value,
                nextScaleS,
                relatedS_snapshot,
                P_Snapshot
            );
            CollateralGainsArray[i].tokenAddress = S.tokenAddress;
        }

        return CollateralGainsArray;
    }

    function _getCollateralGainFromSnapshots(
        uint256 initialDeposit,
        uint256 S,
        uint256 nextScaleS,
        uint256 S_Snapshot,
        uint256 P_Snapshot
    ) internal pure returns (uint256) {
        uint256 firstPortion = S - S_Snapshot;
        uint256 secondPortion = nextScaleS / SCALE_FACTOR;
        uint256 collateralGain = (initialDeposit *
            (firstPortion + secondPortion)) /
            P_Snapshot /
            DECIMAL_PRECISION;

        return collateralGain;
    }

    function _getDepositorTBANKGain(
        address _depositor,
        uint256 _marginalTBANKGain
    ) internal view returns (uint256) {
        uint256 initialDeposit = deposits[_depositor];
        if (initialDeposit == 0) {
            return 0;
        }
        Snapshots memory _snapshots = depositSnapshots[_depositor];
        /*
         * Grab the sum 'G' from the epoch at which the stake was made. The TBANK gain may span up to one scale change.
         * If it does, the second portion of the TBANK gain is scaled by 1e9.
         * If the gain spans no scale change, the second portion will be 0.
         */
        uint256 firstEpochPortion = epochToScaleToG[_snapshots.epoch][
            _snapshots.scale
        ];
        uint256 secondEpochPortion = epochToScaleToG[_snapshots.epoch][
            _snapshots.scale + 1
        ];
        if (_snapshots.epoch == currentEpoch) {
            if (_snapshots.scale == currentScale)
                firstEpochPortion += _marginalTBANKGain;
            if (_snapshots.scale + 1 == currentScale)
                secondEpochPortion += _marginalTBANKGain;
        }
        uint256 gainPortions = firstEpochPortion -
            _snapshots.G +
            secondEpochPortion /
            SCALE_FACTOR;

        return
            (initialDeposit * (gainPortions)) /
            _snapshots.P /
            DECIMAL_PRECISION;
    }

    /// @dev gets compounded deposit of the user
    function _getCompoundedDepositFromSnapshots(
        uint256 _initialStake,
        Snapshots memory _snapshots
    ) internal view returns (uint256) {
        uint256 snapshot_P = _snapshots.P;

        // If stake was made before a pool-emptying event, then it has been fully cancelled with debt -- so, return 0
        if (_snapshots.epoch < currentEpoch) {
            return 0;
        }

        uint256 compoundedStake;
        uint128 scaleDiff = currentScale - _snapshots.scale;

        /* Compute the compounded stake. If a scale change in P was made during the stake's lifetime,
         * account for it. If more than one scale change was made, then the stake has decreased by a factor of
         * at least 1e-9 -- so return 0.
         */
        uint256 calculatedSnapshotP = snapshot_P == 0
            ? DECIMAL_PRECISION
            : snapshot_P;
        if (scaleDiff == 0) {
            compoundedStake = (_initialStake * P) / calculatedSnapshotP;
        } else if (scaleDiff == 1) {
            compoundedStake =
                (_initialStake * P) /
                calculatedSnapshotP /
                SCALE_FACTOR;
        } else {
            // if scaleDiff >= 2
            compoundedStake = 0;
        }

        /*
         * If compounded deposit is less than a billionth of the initial deposit, return 0.
         *
         * NOTE: originally, this line was in place to stop rounding errors making the deposit too large. However, the error
         * corrections should ensure the error in P "favors the Pool", i.e. any given compounded deposit should slightly less
         * than it's theoretical value.
         *
         * Thus it's unclear whether this line is still really needed.
         */
        if (compoundedStake < _initialStake / 1e9) {
            return 0;
        }

        return compoundedStake;
    }

    /// @dev Compute the StableCoin and Collateral rewards. Uses a "feedback" error correction, to keep
    /// the cumulative error in the P and S state variables low:s
    function _computeRewardsPerUnitStaked(
        address _collateralTokenAddress,
        uint256 _collToAdd,
        uint256 _debtToOffset,
        uint256 _totalStableCoinDeposits
    )
        internal
        returns (
            uint256 collateralGainPerUnitStaked,
            uint256 stableCoinLossPerUnitStaked
        )
    {
        /*
         * Compute the StableCoin and Collateral rewards. Uses a "feedback" error correction, to keep
         * the cumulative error in the P and S state variables low:
         *
         * 1) Form numerators which compensate for the floor division errors that occurred the last time this
         * function was called.
         * 2) Calculate "per-unit-staked" ratios.
         * 3) Multiply each ratio back by its denominator, to reveal the current floor division error.
         * 4) Store these errors for use in the next correction when this function is called.
         * 5) Note: static analysis tools complain about this "division before multiplication", however, it is intended.
         */
        uint256 collateralNumerator = _collToAdd *
            DECIMAL_PRECISION +
            collateralToLastErrorOffset[_collateralTokenAddress];

        assert(_debtToOffset <= _totalStableCoinDeposits);
        if (_debtToOffset == _totalStableCoinDeposits) {
            stableCoinLossPerUnitStaked = DECIMAL_PRECISION; // When the Pool depletes to 0, so does each deposit
            lastStableCoinLossErrorOffset = 0;
        } else {
            uint256 stableCoinLossNumerator = _debtToOffset *
                DECIMAL_PRECISION -
                lastStableCoinLossErrorOffset;
            /*
             * Add 1 to make error in quotient positive. We want "slightly too much" StableCoin loss,
             * which ensures the error in any given compoundedStableCoinDeposit favors the Stability Pool.
             */
            stableCoinLossPerUnitStaked =
                stableCoinLossNumerator /
                _totalStableCoinDeposits +
                1;
            lastStableCoinLossErrorOffset =
                stableCoinLossPerUnitStaked *
                _totalStableCoinDeposits -
                stableCoinLossNumerator;
        }

        collateralGainPerUnitStaked = (_totalStableCoinDeposits != 0)
            ? collateralNumerator / _totalStableCoinDeposits
            : 0;
        collateralToLastErrorOffset[_collateralTokenAddress] =
            collateralNumerator -
            collateralGainPerUnitStaked *
            _totalStableCoinDeposits;

        return (collateralGainPerUnitStaked, stableCoinLossPerUnitStaked);
    }

    /// @dev distributes TBANK per minutes that was not spent yet
    function _triggerTBANKdistribution() internal {
        uint256 issuance = _issueTBANKRewards();
        _updateG(issuance);
    }

    function _issueTBANKRewards() internal returns (uint256) {
        uint256 newTBANKRewardTime = block.timestamp;
        uint256 totalTBANKRewardsLeft_cached = totalTBANKRewardsLeft;
        if (
            totalTBANKRewardsLeft_cached == 0 ||
            tbankPerMinute == 0 ||
            totalDeposit == 0
        ) {
            latestTBANKRewardTime = newTBANKRewardTime;
            return 0;
        }

        uint256 timePassedInMinutes = (newTBANKRewardTime - latestTBANKRewardTime) /
            SECONDS_IN_ONE_MINUTE;
        uint256 issuance = tbankPerMinute * timePassedInMinutes;
        if (totalTBANKRewardsLeft_cached < issuance) {
            issuance = totalTBANKRewardsLeft_cached; // event will capture that 0 tokens left
        }
        uint256 newTotalTBANKRewardsLeft = totalTBANKRewardsLeft_cached - issuance;
        totalTBANKRewardsLeft = newTotalTBANKRewardsLeft;
        latestTBANKRewardTime = newTBANKRewardTime;

        emit TBANKRewardIssue(issuance, newTotalTBANKRewardsLeft);

        return issuance;
    }

    function _computeTBANKPerUnitStaked(
        uint256 _tbankIssuance,
        uint256 _totalStableCoinDeposits
    ) internal returns (uint256) {
        /*
         * Calculate the TBANK-per-unit staked.  Division uses a "feedback" error correction, to keep the
         * cumulative error low in the running total G:
         *
         * 1) Form a numerator which compensates for the floor division error that occurred the last time this
         * function was called.
         * 2) Calculate "per-unit-staked" ratio.
         * 3) Multiply the ratio back by its denominator, to reveal the current floor division error.
         * 4) Store this error for use in the next correction when this function is called.
         * 5) Note: static analysis tools complain about this "division before multiplication", however, it is intended.
         */
        uint256 tbankNumerator = _tbankIssuance * DECIMAL_PRECISION + lastTBANKError;

        uint256 tbankPerUnitStaked = tbankNumerator / _totalStableCoinDeposits;
        lastTBANKError =
            tbankNumerator -
            (tbankPerUnitStaked * _totalStableCoinDeposits);

        return tbankPerUnitStaked;
    }

    /// @dev transfers collateral rewards tokens precalculated to the depositor
    function _sendCollateralRewardsToDepositor(
        TokenToUint256[] memory _depositorCollateralGains
    ) internal {
        for (uint256 i = 0; i < _depositorCollateralGains.length; i++) {
            if (_depositorCollateralGains[i].value == 0) {
                continue;
            }
            IERC20 collateralToken = IERC20(
                _depositorCollateralGains[i].tokenAddress
            );
            collateralToken.safeTransfer(
                msg.sender,
                _depositorCollateralGains[i].value
            );
            emit CollateralRewardRedeemed(
                msg.sender,
                _depositorCollateralGains[i].tokenAddress,
                _depositorCollateralGains[i].value
            );
        }
    }

    /// @dev transfers TBANK amount to the user
    function _sendTBANKRewardsToDepositor(uint256 _tbankGain) internal {
        tbankToken.transfer(msg.sender, _tbankGain);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/token/ERC20/ERC20.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';

import "./interfaces/IMintableTokenOwner.sol";
import "./interfaces/IMintableToken.sol";

import "hardhat/console.sol";
contract Stabilizer is Ownable {

    using SafeERC20 for IERC20;
    using SafeERC20 for IMintableToken;

    IMintableTokenOwner public immutable mintableTokenOwner;
    IMintableToken public immutable stableToken;
    IERC20 public immutable collateralToken;

    uint256 public immutable scalingFactor;

    uint256 public feeBps;

    address public feeRecipient;

    event StabilizerMint(address indexed account, uint256 amount, uint256 fee);
    event StabilizerBurn(address indexed account, uint256 amount, uint256 stableFee);

    event FeeRecipientChanged(address indexed oldRecipient, address indexed newRecipient);

    constructor(address _mintableTokenOwner, address _collateralToken, uint256 _feeBps) Ownable(msg.sender) {

        require(_mintableTokenOwner != address(0), "mintable-token-owner-is-zero");
        require(_collateralToken != address(0), "collateral-token-is-zero");
        mintableTokenOwner = IMintableTokenOwner(_mintableTokenOwner);
        stableToken = IMintableToken(mintableTokenOwner.token());
        collateralToken = IERC20(_collateralToken);
        scalingFactor = 10 ** (ERC20(address(stableToken)).decimals() - IERC20Metadata(_collateralToken).decimals());
        feeRecipient = msg.sender;
        feeBps = _feeBps;
    }

    function setFeeRecipient(address _feeRecipient) external onlyOwner {
        require(_feeRecipient != address(0), "fee-recipient-is-zero");
        emit FeeRecipientChanged(feeRecipient, _feeRecipient);
        feeRecipient = _feeRecipient;
    }

    function setFeeBps(uint256 _feeBps) external onlyOwner {
        require(_feeBps <= 500, "fee-too-high");
        feeBps = _feeBps;
    }

    function mint(uint256 _amount) external {
        uint256 fee = (_amount * feeBps) / 10000;
        require(_amount >= scalingFactor, "amount-too-small");
        uint256 collateralAmount = _amount / scalingFactor;

        collateralToken.safeTransferFrom(msg.sender, address(this), collateralAmount);

        mintableTokenOwner.mint(msg.sender, _amount - fee);
        mintableTokenOwner.mint(feeRecipient, fee);

        emit StabilizerMint(msg.sender, _amount, fee);
    }


    function burn(uint256 _amount) external {
        // mintableToken is 18 decimals, scale accordingly
        uint256 collateralAmount = _amount / scalingFactor;
        require(_amount >= scalingFactor, "amount-too-small");
        uint256 fee = (collateralAmount * feeBps) / 10000;

        stableToken.safeTransferFrom(msg.sender, address(this), _amount);
        stableToken.burn(_amount);

        collateralToken.safeTransfer(msg.sender, collateralAmount - fee);
        collateralToken.safeTransfer(feeRecipient, fee);

        emit StabilizerBurn(msg.sender, _amount, fee);
    }

}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/token/ERC20/ERC20.sol';

/**
 * @title TBANK
 * @dev TBANK is an ERC20 token representing TBANK Governance Token.
 */
contract TBANK is ERC20 {
    /**
     * @dev Total supply of TBANK tokens.
     */
    uint256 public constant TOTAL_SUPPLY = 15_000_000 ether;

    /**
     * @dev Constructor that mints the total supply of TBANK tokens to the deployer.
     */
    constructor() ERC20('TaoBank', 'TBANK') {
        _mint(msg.sender, TOTAL_SUPPLY);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

/***
 TTTTT  BBBBB   A   N   N  K   K
   T    B   B  A A  NN  N  K  K
   T    BBBBB  A A  N N N  KK
   T    B   B AAAAA N  NN  K  K
   T    BBBBB A   A N   N  K   K
***/


import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/Pausable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";

contract TBANKStaking is ReentrancyGuard, Pausable, Ownable {
    using SafeERC20 for IERC20;

    /* ========== STATE VARIABLES ========== */

    struct Reward {
        address rewardsDistributor;
        uint256 rewardsDuration;
        uint256 periodFinish;
        uint256 rewardRate;
        uint256 lastUpdateTime;
        uint256 rewardPerTokenStored;
    }
    IERC20 public stakingToken;
    mapping(address => Reward) public rewardData;
    address[] public rewardTokens;

    // user -> reward token -> amount
    mapping(address => mapping(address => uint256))
        public userRewardPerTokenPaid;
    mapping(address => mapping(address => uint256)) public rewards;

    uint256 private _totalSupply;
    mapping(address => uint256) private _balances;

    address public strategist;
    address public feeRecipient;

    uint256 public constant MAX_FEE = 500; // 5%
    uint256 public depositFee = 0; // 0%
    uint256 public withdrawFee = 0; // 0%


    /* ========== CONSTRUCTOR ========== */

    modifier onlyOwnerOrStrategist() {
        require(
            msg.sender == owner() || msg.sender == strategist,
            "permission denied"
        );
        _;
    }

    constructor(address _stakingToken) Ownable(msg.sender) {
        stakingToken = IERC20(_stakingToken);
        strategist = msg.sender;
        feeRecipient = msg.sender;
    }

    function togglePause() external onlyOwnerOrStrategist {
        if (paused()) _unpause();
        else _pause();
    }

    function setStrategist(address _strategist) external onlyOwner {
        require(_strategist != address(0), "strategist is 0");
        emit StrategistUpdated(strategist, _strategist);
        strategist = _strategist;
    }

    function setFeeRecipient(address _feeRecipient) external onlyOwner {
        require(_feeRecipient != address(0), "feeRecipient is 0");
        emit FeeRecipientUpdated(feeRecipient, _feeRecipient);
        feeRecipient = _feeRecipient;
    }

    function setDepositFee(uint256 _depositFee) external onlyOwner {
        require(_depositFee <= MAX_FEE, "fee too high");
        emit DepositFeeUpdated(depositFee, _depositFee);
        depositFee = _depositFee;
    }

    function setWithdrawFee(uint256 _withdrawFee) external onlyOwner {
        require(_withdrawFee <= MAX_FEE, "fee too high");
        emit WithdrawFeeUpdated(withdrawFee, _withdrawFee);
        withdrawFee = _withdrawFee;
    }

    function addReward(
        address _rewardsToken,
        address _rewardsDistributor,
        uint256 _rewardsDuration
    ) public onlyOwner {
        require(rewardData[_rewardsToken].rewardsDuration == 0);
        rewardTokens.push(_rewardsToken);
        rewardData[_rewardsToken].rewardsDistributor = _rewardsDistributor;
        rewardData[_rewardsToken].rewardsDuration = _rewardsDuration;
    }

    /* ========== VIEWS ========== */

    function totalSupply() external view returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) external view returns (uint256) {
        return _balances[account];
    }

    function lastTimeRewardApplicable(
        address _rewardsToken
    ) public view returns (uint256) {
        return (block.timestamp < rewardData[_rewardsToken].periodFinish
            ? block.timestamp
            : rewardData[_rewardsToken].periodFinish);
    }

    function rewardPerToken(
        address _rewardsToken
    ) public view returns (uint256) {
        if (_totalSupply == 0) {
            return rewardData[_rewardsToken].rewardPerTokenStored;
        }
        return
            rewardData[_rewardsToken].rewardPerTokenStored +
            (((lastTimeRewardApplicable(_rewardsToken) -
                rewardData[_rewardsToken].lastUpdateTime) *
                rewardData[_rewardsToken].rewardRate) * 1e18) /
            _totalSupply;
    }

    function earned(
        address account,
        address _rewardsToken
    ) public view returns (uint256) {
        return
            ((_balances[account] *
                (rewardPerToken(_rewardsToken) -
                    userRewardPerTokenPaid[account][_rewardsToken])) / 1e18) +
            rewards[account][_rewardsToken];
    }

    function getRewardForDuration(
        address _rewardsToken
    ) external view returns (uint256) {
        return
            rewardData[_rewardsToken].rewardRate *
            rewardData[_rewardsToken].rewardsDuration;
    }

    /* ========== MUTATIVE FUNCTIONS ========== */

    function setRewardsDistributor(
        address _rewardsToken,
        address _rewardsDistributor
    ) external onlyOwnerOrStrategist {
        rewardData[_rewardsToken].rewardsDistributor = _rewardsDistributor;
    }

    function stake(
        uint256 amount
    ) external nonReentrant whenNotPaused updateReward(msg.sender) {
        require(amount > 0, "Cannot stake 0");

        if (depositFee > 0) {
            uint256 _fee = (amount * depositFee) / 10000;
            stakingToken.safeTransferFrom(msg.sender, feeRecipient, _fee);
            amount = amount - _fee;
        }

        _totalSupply = _totalSupply + amount;
        _balances[msg.sender] = _balances[msg.sender] + amount;

        stakingToken.safeTransferFrom(msg.sender, address(this), amount);

        emit Staked(msg.sender, amount);
    }

    function withdraw(
        uint256 amount
    ) public nonReentrant updateReward(msg.sender) {
        require(amount > 0, "Cannot withdraw 0");

        _totalSupply = _totalSupply - amount;
        _balances[msg.sender] = _balances[msg.sender] - amount;

        if (withdrawFee > 0) {
            uint256 fee = (amount * withdrawFee) / 10000;
            stakingToken.safeTransfer(feeRecipient, fee);
            amount = amount - fee;
        }
        stakingToken.safeTransfer(msg.sender, amount);

        emit Withdrawn(msg.sender, amount);
    }

    function getReward() public nonReentrant updateReward(msg.sender) {
        for (uint i; i < rewardTokens.length; i++) {
            address _rewardsToken = rewardTokens[i];
            uint256 reward = rewards[msg.sender][_rewardsToken];
            if (reward > 0) {
                rewards[msg.sender][_rewardsToken] = 0;
                IERC20(_rewardsToken).safeTransfer(msg.sender, reward);
                emit RewardPaid(msg.sender, _rewardsToken, reward);
            }
        }
    }


    /* ========== RESTRICTED FUNCTIONS ========== */

    function notifyRewardAmount(
        address _rewardsToken,
        uint256 reward
    ) external updateReward(address(0)) {
        require(rewardData[_rewardsToken].rewardsDistributor == msg.sender);
        // handle the transfer of reward tokens via `transferFrom` to reduce the number
        // of transactions required and ensure correctness of the reward amount
        IERC20(_rewardsToken).safeTransferFrom(
            msg.sender,
            address(this),
            reward
        );

        if (block.timestamp >= rewardData[_rewardsToken].periodFinish) {
            rewardData[_rewardsToken].rewardRate =
                reward /
                (rewardData[_rewardsToken].rewardsDuration);
        } else {
            uint256 remaining = rewardData[_rewardsToken].periodFinish -
                (block.timestamp);
            uint256 leftover = remaining *
                (rewardData[_rewardsToken].rewardRate);
            rewardData[_rewardsToken].rewardRate =
                (reward + leftover) /
                (rewardData[_rewardsToken].rewardsDuration);
        }

        rewardData[_rewardsToken].lastUpdateTime = block.timestamp;
        rewardData[_rewardsToken].periodFinish =
            block.timestamp +
            (rewardData[_rewardsToken].rewardsDuration);
        emit RewardAdded(reward);
    }

    // Added to support recovering LP Rewards from other systems such as BAL to be distributed to holders
    function recoverERC20(
        address tokenAddress,
        uint256 tokenAmount
    ) external onlyOwner {
        require(
            tokenAddress != address(stakingToken),
            "Cannot withdraw staking token"
        );
        require(
            rewardData[tokenAddress].lastUpdateTime == 0,
            "Cannot withdraw reward token"
        );
        IERC20(tokenAddress).safeTransfer(owner(), tokenAmount);
        emit Recovered(tokenAddress, tokenAmount);
    }

    function setRewardsDuration(
        address _rewardsToken,
        uint256 _rewardsDuration
    ) external  {
        require(
            block.timestamp > rewardData[_rewardsToken].periodFinish,
            "Reward period still active"
        );
        require(rewardData[_rewardsToken].rewardsDistributor == msg.sender);
        require(_rewardsDuration > 0, "Reward duration must be non-zero");
        rewardData[_rewardsToken].rewardsDuration = _rewardsDuration;
        emit RewardsDurationUpdated(
            _rewardsToken,
            rewardData[_rewardsToken].rewardsDuration
        );
    }

    /* ========== MODIFIERS ========== */

    modifier updateReward(address account) {
        for (uint i; i < rewardTokens.length; i++) {
            address token = rewardTokens[i];
            rewardData[token].rewardPerTokenStored = rewardPerToken(token);
            rewardData[token].lastUpdateTime = lastTimeRewardApplicable(token);
            if (account != address(0)) {
                rewards[account][token] = earned(account, token);
                userRewardPerTokenPaid[account][token] = rewardData[token]
                    .rewardPerTokenStored;
            }
        }
        _;
    }

    /* ========== EVENTS ========== */

    event RewardAdded(uint256 reward);
    event Staked(address indexed user, uint256 amount);
    event Withdrawn(address indexed user, uint256 amount);
    event RewardPaid(
        address indexed user,
        address indexed rewardsToken,
        uint256 reward
    );
    event RewardsDurationUpdated(address token, uint256 newDuration);
    event Recovered(address token, uint256 amount);
    event Invested(address indexed strategist, uint256 amount);
    event StrategistUpdated(address oldStrategist, address newStrategist);
    event FeeRecipientUpdated(address oldFeeRecipient, address newFeeRecipient);
    event DepositFeeUpdated(uint256 oldDepositFee, uint256 newDepositFee);
    event WithdrawFeeUpdated(uint256 oldWithdrawFee, uint256 newWithdrawFee);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/interfaces/IERC20Metadata.sol';
import './interfaces/IPriceFeed.sol';
import './utils/constants.sol';
import './interfaces/ITokenPriceFeed.sol';

/**
 * @title TokenToPriceFeed
 * @dev Manages mapping of token addresses to their respective price feed contracts.
 */
contract TokenToPriceFeed is Ownable, Constants, ITokenPriceFeed {
    /// @dev Mapping of token address to its associated price feed contract.
    mapping(address => TokenInfo) public tokens;

    constructor() Ownable(msg.sender) {}

    /**
     * @dev Retrieves the contract owner's address.
     */
    function owner() public view override(Ownable, IOwnable) returns (address) {
        return Ownable.owner();
    }

    /**
     * @dev Retrieves the token's current price from the respective price feed.
     * @param  _token Address of the token.
     */
    function tokenPrice(address _token) public view override returns (uint256) {
        return IPriceFeed(tokens[_token].priceFeed).price();
    }

    /**
     * @dev Retrieves the price feed contract address for a given token.
     * @param  _token Address of the token.
     */
    function tokenPriceFeed(
        address _token
    ) public view override returns (address) {
        return tokens[_token].priceFeed;
    }

    /**
     * @dev Retrieves the minimal collateral ratio for a given token.
     * @param  _token Address of the token.
     */
    function mcr(address _token) public view override returns (uint256) {
        return tokens[_token].mcr;
    }

    /**
     * @dev Retrieves the decimal places of a given token.
     * @param  _token Address of the token.
     */
    function decimals(address _token) public view override returns (uint256) {
        return tokens[_token].decimals;
    }

    /**
     * @dev Retrieves the minimal liquidation ratio for a given token.
     * @param  _token Address of the token.
     */
    function mlr(address _token) public view override returns (uint256) {
        return tokens[_token].mlr;
    }

    /**
     * @dev Retrieves the borrow rate for a given token.
     * @param  _token Address of the token.
     */

    function borrowRate(address _token) public view override returns (uint256) {
        return tokens[_token].borrowRate;
    }

    /**
     * @dev Sets or updates the price feed contract for a specific token.
     * @param  _token Address of the token.
     * @param  _priceFeed Address of the PriceFeed contract for the token.
     * @param  _mcr Minimal Collateral Ratio of the token.
     * @param  _mlr Minimal Liquidation Ratio of the token.
     * @param  _borrowRate Borrow rate of the token.
     */
    function setTokenPriceFeed(
        address _token,
        address _priceFeed,
        uint256 _mcr,
        uint256 _mlr,
        uint256 _borrowRate,
        uint256 /* _decimals */
    ) public override onlyOwner {
        require(_mcr >= 100, 'MCR < 100');
        require(_mlr >= 100 && _mlr <= _mcr, 'MLR < 100 or MLR > MCR');
        require(_borrowRate < 10 ether, 'borrowRate >= 10%');
        IERC20Metadata erc20 = IERC20Metadata(_token);
        uint256 _decimals = erc20.decimals();
        require(_decimals > 0 || _decimals <= 18, 'not-valid-decimals');

        TokenInfo memory token = tokens[_token];
        token.priceFeed = _priceFeed;
        token.mcr = (DECIMAL_PRECISION * _mcr) / 100;
        token.mlr = (DECIMAL_PRECISION * _mlr) / 100;
        token.borrowRate = _borrowRate;
        token.decimals = _decimals;

        emit NewTokenPriceFeed(
            _token,
            _priceFeed,
            erc20.name(),
            erc20.symbol(),
            token.mcr,
            token.mlr,
            token.borrowRate,
            _decimals
        );
        tokens[_token] = token;
    }

    /**
     * @dev Transfers ownership after revoking other roles from other addresses.
     * @param _newOwner Address of the new owner.
     */
    function transferOwnership(
        address _newOwner
    ) public override(Ownable, IOwnable) {
        Ownable.transferOwnership(_newOwner);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

/**
 * @title Constants
 * @dev This contract defines various constants used within the system.
 */
contract Constants {
    // Precision used for decimal calculations
    uint256 public constant DECIMAL_PRECISION = 1e18;

    // Reserve required for liquidation purposes
    uint256 public constant LIQUIDATION_RESERVE = 1e18;

    // Maximum value for uint256
    uint256 public constant MAX_INT = 2 ** 256 - 1;

    // Constants for percentage calculations
    uint256 public constant PERCENT = (DECIMAL_PRECISION * 1) / 100; // Represents 1%
    uint256 public constant PERCENT10 = PERCENT * 10; // Represents 10%
    uint256 public constant PERCENT_05 = PERCENT / 2; // Represents 0.5%

    // Maximum borrowing and redemption rates
    uint256 public constant MAX_BORROWING_RATE = (DECIMAL_PRECISION * 5) / 100; // Represents 5%
    uint256 public constant MAX_REDEMPTION_RATE =
        (DECIMAL_PRECISION * 10) / 100; // Represents 10%
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.21;

/**
 * @title LinkedAddressList
 * @dev Library implementing a linked list structure to store and operate sorted Troves.
 */
library LinkedAddressList {
    struct EntryLink {
        address prev;
        address next;
    }

    struct List {
        address _last;
        address _first;
        uint256 _size;
        mapping(address => EntryLink) _values;
    }

    /**
     * @dev Adds an element to the linked list.
     * @param _list The storage pointer to the linked list.
     * @param _element The element to be added.
     * @param _reference The reference element to determine the position for addition.
     * @param _before A boolean indicating whether to add the element before the reference.
     * @return A boolean indicating the success of the addition.
     */
    function add(
        List storage _list,
        address _element,
        address _reference,
        bool _before
    ) internal returns (bool) {
        require(
            _reference == address(0x0) ||
                _list._values[_reference].next != address(0x0),
            '79d3d _ref neither valid nor 0x'
        );

        // Element must not exist to be added
        EntryLink storage element_values = _list._values[_element];
        if (element_values.prev == address(0x0)) {
            if (_list._last == address(0x0)) {
                // If the list is empty, set the element as both first and last
                element_values.prev = _element;
                element_values.next = _element;
                _list._first = _element;
                _list._last = _element;
            } else {
                if (
                    _before &&
                    (_reference == address(0x0) || _reference == _list._first)
                ) {
                    // Adding the element as the first element
                    address first = _list._first;
                    _list._values[first].prev = _element;
                    element_values.prev = _element;
                    element_values.next = first;
                    _list._first = _element;
                } else if (
                    !_before &&
                    (_reference == address(0x0) || _reference == _list._last)
                ) {
                    // Adding the element as the last element
                    address last = _list._last;
                    _list._values[last].next = _element;
                    element_values.prev = last;
                    element_values.next = _element;
                    _list._last = _element;
                } else {
                    // Inserting the element between two elements
                    EntryLink memory ref = _list._values[_reference];
                    if (_before) {
                        element_values.prev = ref.prev;
                        element_values.next = _reference;
                        _list._values[_reference].prev = _element;
                        _list._values[ref.prev].next = _element;
                    } else {
                        element_values.prev = _reference;
                        element_values.next = ref.next;
                        _list._values[_reference].next = _element;
                        _list._values[ref.next].prev = _element;
                    }
                }
            }
            _list._size = _list._size + 1;
            return true;
        }
        return false;
    }

    /**
     * @dev Removes an element from the linked list.
     * @param _list The storage pointer to the linked list.
     * @param _element The element to be removed.
     * @return A boolean indicating the success of the removal.
     */
    function remove(
        List storage _list,
        address _element
    ) internal returns (bool) {
        EntryLink memory element_values = _list._values[_element];
        if (element_values.next != address(0x0)) {
            if (_element == _list._last && _element == _list._first) {
                // Removing the last and only element in the list
                delete _list._last;
                delete _list._first;
            } else if (_element == _list._first) {
                // Removing the first element
                address next = element_values.next;
                _list._values[next].prev = next;
                _list._first = next;
            } else if (_element == _list._last) {
                // Removing the last element
                address new_list_last = element_values.prev;
                _list._last = new_list_last;
                _list._values[new_list_last].next = new_list_last;
            } else {
                // Removing an element in between two other elements
                address next = element_values.next;
                address prev = element_values.prev;
                _list._values[next].prev = prev;
                _list._values[prev].next = next;
            }
            // Delete the element itself
            delete _list._values[_element];
            _list._size = _list._size - 1;
            return true;
        }
        return false;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

/// @title Provides functions for deriving a pool address from the factory, tokens, and the fee
library PoolAddress {
    bytes32 internal constant POOL_INIT_CODE_HASH =
        0x5fd83e37b194e20b4858ffd8707ab464489099cc00c7985c0a048fa38836bbaa;

    /// @notice The identifying key of the pool
    struct PoolKey {
        address token0;
        address token1;
        uint24 fee;
    }

    /// @notice Returns PoolKey: the ordered tokens with the matched fee levels
    /// @param tokenA The first token of a pool, unsorted
    /// @param tokenB The second token of a pool, unsorted
    /// @param fee The fee level of the pool
    /// @return Poolkey The pool details with ordered token0 and token1 assignments
    function getPoolKey(
        address tokenA,
        address tokenB,
        uint24 fee
    ) internal pure returns (PoolKey memory) {
        if (tokenA > tokenB) (tokenA, tokenB) = (tokenB, tokenA);
        return PoolKey({token0: tokenA, token1: tokenB, fee: fee});
    }

    /// @notice Deterministically computes the pool address given the factory and PoolKey
    /// @param factory The Uniswap V3 factory contract address
    /// @param key The PoolKey
    /// @return pool The contract address of the V3 pool
    function computeAddress(
        address factory,
        PoolKey memory key
    ) internal pure returns (address pool) {
        require(key.token0 < key.token1);
        pool = address(
            uint160(
                uint256(
                    keccak256(
                        abi.encodePacked(
                            hex'ff',
                            factory,
                            keccak256(
                                abi.encode(key.token0, key.token1, key.fee)
                            ),
                            POOL_INIT_CODE_HASH
                        )
                    )
                )
            )
        );
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/interfaces/IERC20Metadata.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';

import './interfaces/IPriceFeed.sol';
import './interfaces/IVaultFactory.sol';
import './interfaces/IVaultFactoryConfig.sol';
import './interfaces/ILiquidationRouter.sol';

import './utils/constants.sol';
import './interfaces/ITokenPriceFeed.sol';
import './interfaces/IVaultExtraSettings.sol';
import './utils/linked-address-list.sol';

/**
 * @title Vault
 * @dev Manages creation, collateralization, borrowing, and liquidation of Vaults.
 */
contract Vault is Context, Constants {
    string public constant VERSION = '1.2.0';

    // Events emitted by the contract
    event CollateralAdded(
        address indexed collateral,
        uint256 amount,
        uint256 newTotalAmount
    );
    event CollateralRemoved(
        address indexed collateral,
        uint256 amount,
        uint256 newTotalAmount
    );
    event CollateralRedeemed(
        address indexed collateral,
        uint256 amount,
        uint256 newTotalAmount,
        uint256 stableAmountUsed,
        uint256 feePaid
    );

    event DebtAdded(uint256 amount, uint256 newTotalDebt);
    event DebtRepaid(uint256 amount, uint256 newTotalDebt);

    modifier onlyFactory() {
        require(_msgSender() == factory, 'only-factory');
        _;
    }

    using SafeERC20 for IERC20;
    using EnumerableSet for EnumerableSet.AddressSet;

    address public immutable stable;
    address public immutable factory;
    address public vaultOwner;

    string public name;

    EnumerableSet.AddressSet private collateralSet;
    EnumerableSet.AddressSet private operators;

    IVaultExtraSettings public vaultExtraSettings;
    mapping(address => uint256) public collateral;

    uint256 public debt;

    modifier onlyVaultOwner() {
        require(_msgSender() == vaultOwner, 'only-vault-owner');
        _;
    }

    /**
     * @dev Constructor to initialize the Vault contract.
     * @param _factory Address of the VaultFactory contract.
     * @param _vaultOwner Address of the initial owner of the Vault.
     * @param _name Name of the Vault.
     */
    constructor(
        address _factory,
        address _vaultOwner,
        string memory _name,
        IVaultExtraSettings _vaultExtraSettings
    ) {
        require(_vaultOwner != address(0x0), 'vault-owner-is-0');
        require(bytes(_name).length > 0, 'name-is-empty');
        require(_factory != address(0x0), 'factory-is-0');
        require(
            address(_vaultExtraSettings) != address(0x0),
            'vault-extra-settings-is-0'
        );

        factory = _factory;
        vaultOwner = _vaultOwner;
        stable = IVaultFactory(factory).stable();
        name = _name;
        vaultExtraSettings = _vaultExtraSettings;
    }

    /**
     * @dev Transfers ownership of the Vault to a new owner.
     * @param _newOwner Address of the new owner.
     */
    function transferVaultOwnership(address _newOwner) external onlyFactory {
        vaultOwner = _newOwner;
    }

    /**
     * @dev Sets a new name for the Vault.
     * @param _name New name for the Vault.
     */
    function setName(string memory _name) external onlyVaultOwner {
        require(bytes(_name).length > 0, 'name-is-empty');
        name = _name;
    }

    /**
     * @dev Adds an operator to the Vault, allowing them certain permissions.
     * @param _operator Address of the operator to be added.
     */
    function addOperator(address _operator) external onlyVaultOwner {
        require(_operator != address(0x0), 'operator-is-0');
        operators.add(_operator);
    }

    /**
     * @dev Removes an operator from the Vault, revoking their permissions.
     * @param _operator Address of the operator to be removed.
     */
    function removeOperator(address _operator) external onlyVaultOwner {
        require(_operator != address(0x0), 'operator-is-0');
        operators.remove(_operator);
    }

    /**
     * @dev Checks if an address is an operator for this Vault.
     * @param _operator Address to check.
     * @return Boolean indicating whether the address is an operator.
     */
    function isOperator(address _operator) external view returns (bool) {
        return operators.contains(_operator);
    }

    /**
     * @dev Returns the number of operators in the Vault.
     * @return Length of the operators set.
     */
    function operatorsLength() external view returns (uint256) {
        return operators.length();
    }

    /**
     * @dev Returns the operator at a given index in the operators set.
     * @param _index Index of the operator.
     * @return Address of the operator at the given index.
     */
    function operatorAt(uint256 _index) external view returns (address) {
        return operators.at(_index);
    }

    /**
     * @dev Checks if a collateral token is added to the Vault.
     * @param _collateral Address of the collateral token to check.
     * @return Boolean indicating whether the collateral token is added.
     */
    function containsCollateral(
        address _collateral
    ) external view returns (bool) {
        return collateralSet.contains(_collateral);
    }

    /**
     * @dev Returns the number of collateral tokens added to the Vault.
     * @return Length of the collateral set.
     */
    function collateralsLength() external view returns (uint256) {
        return collateralSet.length();
    }

    /**
     * @dev Returns the collateral token address at a given index in the collateral set.
     * @param _index Index of the collateral token.
     * @return Address of the collateral token at the given index.
     */
    function collateralAt(uint256 _index) external view returns (address) {
        return collateralSet.at(_index);
    }

    /**
     * @dev Returns an array containing all collateral token addresses in the Vault.
     * @return Array of collateral token addresses.
     */
    function collaterals() external view returns (address[] memory) {
        address[] memory _collaterals = new address[](collateralSet.length());
        for (uint256 i = 0; i < collateralSet.length(); i++) {
            _collaterals[i] = collateralSet.at(i);
        }
        return _collaterals;
    }

    /**
     * @dev Adds a new collateral token to the Vault and updates the collateral amount.
     * @param _collateral Address of the collateral token to add.
     * @param _amount Amount of the collateral token to add.
     */
    function addCollateral(
        address _collateral,
        uint256 _amount
    ) external onlyFactory {
        require(_collateral != address(0x0), 'collateral-is-0');
        require(_amount > 0, 'amount-is-0');

        collateralSet.add(_collateral);
        uint256 _maxTokens = IVaultFactory(factory).MAX_TOKENS_PER_VAULT();
        require(collateralSet.length() <= _maxTokens, 'max-tokens-reached');

        collateral[_collateral] += _amount;

        emit CollateralAdded(_collateral, _amount, collateral[_collateral]);
    }

    /**
     * @dev Removes a collateral token from the Vault and transfers it back to the sender.
     * @param _collateral Address of the collateral token to remove.
     * @param _amount Amount of the collateral token to remove.
     * @param _to Address to receive the removed collateral.
     */
    function removeCollateral(
        address _collateral,
        uint256 _amount,
        address _to
    ) external onlyFactory {
        require(_collateral != address(0x0), 'collateral-is-0');
        require(_amount > 0, 'amount-is-0');

        collateral[_collateral] -= _amount;
        if (collateral[_collateral] == 0) {
            collateralSet.remove(_collateral);
        }

        uint256 _healthFactor = healthFactor(false);
        require(_healthFactor >= DECIMAL_PRECISION, 'health-factor-below-1');

        IERC20(_collateral).safeTransfer(_to, _amount);

        emit CollateralRemoved(_collateral, _amount, collateral[_collateral]);
    }

    /**
     * @dev Adds bad debt to the Vault.
     * @param _amount Amount of bad debt to add.
     */
    function addBadDebt(uint256 _amount) external onlyFactory {
        require(_amount > 0, 'amount-is-0');

        debt += _amount;
        emit DebtAdded(_amount, debt);
    }

    /**
     * @dev Calculates the maximum borrowable amount and the current borrowable amount.
     * @return _maxBorrowable Maximum borrowable amount.
     * @return _borrowable Current borrowable amount.
     */
    function borrowable()
        public
        view
        returns (uint256 _maxBorrowable, uint256 _borrowable)
    {
        (_maxBorrowable, _borrowable) = borrowableWithDiff(
            address(0x0),
            0,
            false,
            false
        );
    }

    /**
     * @dev Borrows a specified amount from the Vault.
     * @param _amount Amount to borrow.
     */
    function borrow(uint256 _amount) external onlyFactory {
        require(_amount > 0, 'amount-is-0');

        (uint256 _maxBorrowable, uint256 _borrowable) = borrowable();
        require(_amount <= _borrowable, 'not-enough-borrowable');

        debt += _amount;
        require(debt <= _maxBorrowable, 'max-borrowable-reached');

        emit DebtAdded(_amount, debt);
    }

    /**
     * @dev Repays a specified amount to the Vault's debt.
     * @param _amount Amount to repay.
     */
    function repay(uint256 _amount) external onlyFactory {
        require(_amount <= debt, 'amount-exceeds-debt');

        debt -= _amount;
        emit DebtRepaid(_amount, debt);
    }

    /**
     * @dev Calculates the stable amount needed and the redemption fee for redeeming collateral.
     * @param _collateral Address of the collateral token.
     * @param _collateralAmount Amount of collateral to redeem.
     * @return _stableAmountNeeded Stablecoin amount required to redeem collateral.
     * @return _redemptionFee Fee charged for the redemption.
     */
    function calcRedeem(
        address _collateral,
        uint256 _collateralAmount
    )
        public
        view
        returns (uint256 _stableAmountNeeded, uint256 _redemptionFee)
    {
        ITokenPriceFeed _priceFeed = ITokenPriceFeed(
            IVaultFactory(factory).priceFeed()
        );
        uint256 _price = _priceFeed.tokenPrice(_collateral);

        uint256 _normalizedCollateralAmount = _collateralAmount *
            (10 ** (18 - _priceFeed.decimals(_collateral)));
        _stableAmountNeeded =
            (_normalizedCollateralAmount * _price) /
            DECIMAL_PRECISION;

        (, , uint256 _redemptionKickbackRate) = vaultExtraSettings
            .getExtraSettings();

        if (_redemptionKickbackRate > 0) {
            uint256 _kickbackAmount = (_stableAmountNeeded *
                _redemptionKickbackRate) / DECIMAL_PRECISION;
            _stableAmountNeeded += _kickbackAmount;
        }
        uint256 _redemptionRate = IVaultFactoryConfig(factory).redemptionRate();
        _redemptionFee =
            (_stableAmountNeeded * _redemptionRate) /
            DECIMAL_PRECISION;
    }

    /**
     * @dev Redeems a specified amount of collateral, repays debt, and transfers collateral back to the redeemer.
     * @param _collateral Address of the collateral token to redeem.
     * @param _collateralAmount Amount of collateral to redeem.
     * @return _debtRepaid Amount of debt repaid.
     * @return _feeCollected Fee collected for the redemption.
     */
    function redeem(
        address _collateral,
        uint256 _collateralAmount
    )
        external
        onlyFactory
        returns (uint256 _debtRepaid, uint256 _feeCollected)
    {
        require(_collateral != address(0x0), 'collateral-is-0');
        require(_collateralAmount > 0, 'amount-is-0');
        require(collateralSet.contains(_collateral), 'collateral-not-added');
        require(
            collateral[_collateral] >= _collateralAmount,
            'not-enough-collateral'
        );

        uint256 _currentHealthFactor = healthFactor(true);
        uint256 _redemptionHealthFactorLimit = IVaultFactoryConfig(factory)
            .redemptionHealthFactorLimit();
        require(
            _currentHealthFactor < _redemptionHealthFactorLimit,
            'health-factor-above-redemption-limit'
        );

        (uint256 _debtTreshold, uint256 _maxRedeemablePercentage, ) = vaultExtraSettings
            .getExtraSettings();

        
        collateral[_collateral] -= _collateralAmount;
        (_debtRepaid, _feeCollected) = calcRedeem(
            _collateral,
            _collateralAmount
        );

        
        if (debt > _debtTreshold) {
            uint256 _redeemableDebt = (debt * _maxRedeemablePercentage) /
                DECIMAL_PRECISION;
            require(_debtRepaid <= _redeemableDebt, 'redeemable-debt-exceeded');

        }

        debt -= _debtRepaid;

        if (collateral[_collateral] == 0) {
            collateralSet.remove(_collateral);
        }

        IERC20(_collateral).safeTransfer(_msgSender(), _collateralAmount);

        emit CollateralRedeemed(
            _collateral,
            _collateralAmount,
            collateral[_collateral],
            _debtRepaid,
            _feeCollected
        );
        emit DebtRepaid(_debtRepaid, debt);
    }

    /**
     * @dev Computes the health factor of the Vault.
     * @param _useMlr Flag to use Minimum Loan Ratio (MLR) in health factor computation.
     * @return _healthFactor Current health factor.
     */
    function healthFactor(
        bool _useMlr
    ) public view returns (uint256 _healthFactor) {
        if (debt == 0) {
            return type(uint256).max;
        }

        (uint256 _maxBorrowable, ) = borrowableWithDiff(
            address(0x0),
            0,
            false,
            _useMlr
        );

        _healthFactor = (_maxBorrowable * DECIMAL_PRECISION) / debt;
    }

    /**
     * @dev Computes a new health factor given a new debt value.
     * @param _newDebt New debt amount to calculate the health factor.
     * @param _useMlr Flag to use Minimum Loan Ratio (MLR) in health factor computation.
     * @return _newHealthFactor Calculated new health factor based on the new debt value.
     */
    function newHealthFactor(
        uint256 _newDebt,
        bool _useMlr
    ) public view returns (uint256 _newHealthFactor) {
        if (_newDebt == 0) {
            return type(uint256).max;
        }

        (uint256 _maxBorrowable, ) = borrowableWithDiff(
            address(0x0),
            0,
            false,
            _useMlr
        );
        _newHealthFactor = (_maxBorrowable * DECIMAL_PRECISION) / _newDebt;
    }

    /**
     * @dev Computes the maximum borrowable amount and the current borrowable amount.
     * @param _collateral Address of the collateral token (0x0 for total vault borrowable).
     * @param _diffAmount Difference in collateral amount when adding/removing collateral.
     * @param _isAdd Flag indicating whether the collateral is added or removed.
     * @param _useMlr Flag to use Minimum Loan Ratio (MLR) in borrowable computation.
     * @return _maxBorrowable Maximum borrowable amount.
     * @return _borrowable Current borrowable amount based on the collateral.
     */
    function borrowableWithDiff(
        address _collateral,
        uint256 _diffAmount,
        bool _isAdd,
        bool _useMlr
    ) public view returns (uint256 _maxBorrowable, uint256 _borrowable) {
        uint256 _newCollateralAmount = collateral[_collateral];

        uint256 _borrowableAmount = 0;

        if (_collateral != address(0x0)) {
            require(
                IVaultFactory(factory).isCollateralSupported(_collateral),
                'collateral-not-supported'
            );
            if (_isAdd) {
                _newCollateralAmount += _diffAmount;
            } else {
                _newCollateralAmount -= _diffAmount;
            }
        }

        ITokenPriceFeed _priceFeed = ITokenPriceFeed(
            IVaultFactory(factory).priceFeed()
        );

        for (uint256 i = 0; i < collateralSet.length(); i++) {
            address _c = collateralSet.at(i);
            uint256 _collateralAmount = _c == _collateral
                ? _newCollateralAmount
                : collateral[_c];
            uint256 _price = _priceFeed.tokenPrice(_c);
            uint256 _divisor = _useMlr
                ? _priceFeed.mlr(_c)
                : _priceFeed.mcr(_c);
            uint256 _normalizedCollateralAmount = _collateralAmount *
                (10 ** (18 - _priceFeed.decimals(_c)));

            uint256 _collateralBorrowable = (_normalizedCollateralAmount *
                _price) / DECIMAL_PRECISION;

            _borrowableAmount +=
                (_collateralBorrowable * DECIMAL_PRECISION) /
                _divisor;
        }

        return (
            _borrowableAmount,
            (_borrowableAmount > debt) ? _borrowableAmount - debt : 0
        );
    }

    /**
     * @dev Liquidates the vault by repaying all debts with seized collateral.
     * @return _forgivenDebt Amount of debt forgiven during liquidation.
     */
    function liquidate() external onlyFactory returns (uint256 _forgivenDebt) {
        require(
            healthFactor(true) < DECIMAL_PRECISION,
            'liquidation-factor-above-1'
        );

        uint256 _debt = debt;
        debt = 0;
        ILiquidationRouter router = ILiquidationRouter(
            IVaultFactory(factory).liquidationRouter()
        );
        for (uint256 i = 0; i < collateralSet.length(); i++) {
            address _collateral = collateralSet.at(i);
            uint256 _collateralAmount = collateral[_collateral];
            uint256 _actualCollateralBalance = IERC20(_collateral).balanceOf(
                address(this)
            );
            if (_actualCollateralBalance < _collateralAmount) {
                _collateralAmount = _actualCollateralBalance;
            }
            collateral[_collateral] = 0;

            IERC20(_collateral).safeIncreaseAllowance(
                IVaultFactory(factory).liquidationRouter(),
                _collateralAmount
            );

            router.addSeizedCollateral(_collateral, _collateralAmount);
        }
        router.addUnderWaterDebt(address(this), _debt);
        router.tryLiquidate();
        _forgivenDebt = _debt;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import './interfaces/IVault.sol';
import './interfaces/ITokenPriceFeed.sol';
import './interfaces/IVaultFactory.sol';

/**
 * @title VaultBorrowRate
 * @notice Contract to calculate the borrow rate for a given Vault
 */
contract VaultBorrowRate {
    /**
     * @notice Calculates the borrow rate for a specified Vault
     * @param _vaultAddress The address of the Vault for which to calculate the borrow rate
     * @return uint256 The calculated borrow rate
     */
    function getBorrowRate(
        address _vaultAddress
    ) external view returns (uint256) {
        IVault _vault = IVault(_vaultAddress);
        IVaultFactory _vaultFactory = IVaultFactory(_vault.factory());
        ITokenPriceFeed _priceFeed = ITokenPriceFeed(_vaultFactory.priceFeed());
        uint256 _totalWeightedFee;
        uint256 _totalCollateralValue;
        uint256 _collateralsLength = _vault.collateralsLength();

        for (uint256 i; i < _collateralsLength; i++) {
            address _collateralAddress = _vault.collateralAt(i);
            uint256 _collateralAmount = _vault.collateral(_collateralAddress);
            uint256 _price = _priceFeed.tokenPrice(_collateralAddress);
            uint256 _borrowRate = _priceFeed.borrowRate(_collateralAddress);

            uint256 _normalizedCollateralAmount = _collateralAmount *
                (10 ** (18 - _priceFeed.decimals(_collateralAddress)));
            uint256 _collateralValue = (_normalizedCollateralAmount * _price) / 1e18;
            uint256 _weightedFee = (_collateralValue * _borrowRate) / 1e18;

            _totalCollateralValue += _collateralValue;
            _totalWeightedFee += _weightedFee;
        }

        return ((_totalWeightedFee * 1e18) / _totalCollateralValue) / 100;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import './Vault.sol';
import './interfaces/IVaultExtraSettings.sol';
/**
 * @title VaultDeployer
 * @notice A contract responsible for deploying new instances of the Vault contract.
 */
contract VaultDeployer {
    IVaultExtraSettings public immutable vaultExtraSettings;

    constructor(address _vaultExtraSettings) {
        require(
            _vaultExtraSettings != address(0x0),
            'vault-extra-settings-is-zero'
        );
        vaultExtraSettings = IVaultExtraSettings(_vaultExtraSettings);
    }
    /**
     * @notice Deploys a new Vault contract.
     * @param _factory The address of the factory contract managing the vaults.
     * @param _vaultOwner The address of the intended owner of the new vault.
     * @param _name The name of the new vault.
     * @return The address of the newly created Vault contract.
     */
    function deployVault(
        address _factory,
        address _vaultOwner,
        string memory _name
    ) external returns (address) {
        // Deploy a new instance of the Vault contract
        Vault vault = new Vault(
            _factory,
            _vaultOwner,
            _name,
            vaultExtraSettings
        );
        return address(vault);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import './interfaces/IVaultExtraSettings.sol';
import '@openzeppelin/contracts/access/Ownable.sol';

/**
 * @title VaultExtraSettings
 * @notice Contract to manage extra settings for a Vault
 */
contract VaultExtraSettings is IVaultExtraSettings, Ownable {
    uint256 public debtTreshold;
    uint256 public maxRedeemablePercentage;
    uint256 public redemptionKickback;

    constructor() Ownable(msg.sender) {}

    /**
     * @dev Sets the maximum redeemable percentage for a Vault.
     * @param _debtTreshold The debt treshold for the Vault, in order to enable percentage redemption.
     * @param _maxRedeemablePercentage The maximum redeemable percentage for the Vault.
     */
    function setMaxRedeemablePercentage(
        uint256 _debtTreshold,
        uint256 _maxRedeemablePercentage
    ) external override onlyOwner {
        debtTreshold = _debtTreshold;
        maxRedeemablePercentage = _maxRedeemablePercentage;
    }

    /**
     * @dev Sets the redemption kickback for a Vault.
     * @param _redemptionKickback The redemption kickback for the Vault.
     */
    function setRedemptionKickback(
        uint256 _redemptionKickback
    ) external override onlyOwner {
        redemptionKickback = _redemptionKickback;
    }

    /**
     * @dev Retrieves the extra settings for a Vault.
     * @return _debtTreshold debt treshold for enabling max redeemable percentage, _maxRedeemablePercentage maximum redeemable percentage, _redemptionKickback redemption fee kickback to the vault
     */
    function getExtraSettings()
        external
        view
        override
        returns (
            uint256 _debtTreshold,
            uint256 _maxRedeemablePercentage,
            uint256 _redemptionKickback
        )
    {
        return (debtTreshold, maxRedeemablePercentage, redemptionKickback);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

/*

                                              
 _____ _____ _____    _____ _____ _____ _____ 
|_   _|  _  |     |  | __  |  _  |   | |  |  |
  | | |     |  |  |  | __ -|     | | | |    -|
  |_| |__|__|_____|  |_____|__|__|_|___|__|__|
                                              
*/

import '@openzeppelin/contracts/interfaces/IERC20Metadata.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import '@openzeppelin/contracts/utils/ReentrancyGuard.sol';

import './utils/linked-address-list.sol';
import './Vault.sol';
import './VaultFactoryConfig.sol';
import './VaultFactoryList.sol';
import './interfaces/IWETH.sol';
import './interfaces/ITokenPriceFeed.sol';
import './interfaces/IPriceFeed.sol';
import './interfaces/IMintableTokenOwner.sol';
import './interfaces/IMintableToken.sol';
import './interfaces/IVaultDeployer.sol';
import './interfaces/IVaultBorrowRate.sol';

/**
 * @title VaultFactory
 * @dev Manages the creation, configuration, and operations of Vaults with collateral and borrowing functionality.
 */
contract VaultFactory is ReentrancyGuard, VaultFactoryConfig, VaultFactoryList {
    // Events emitted by the contract
    event NewVault(address indexed vault, string name, address indexed owner);
    event VaultOwnerChanged(
        address indexed vault,
        address indexed oldOwner,
        address indexed newOwner
    );

    // Libraries used by the contract
    using LinkedAddressList for LinkedAddressList.List;
    using SafeERC20 for IERC20;
    using SafeERC20 for IMintableToken;

    // Immutable state variables
    address public immutable stable;
    address public immutable nativeWrapped;
    IMintableTokenOwner public immutable mintableTokenOwner;

    // State variables
    mapping(address => uint256) public collateral;
    uint256 public totalDebt;

    /**
     * @dev Constructor to initialize essential addresses and contracts for VaultFactory.
     * @param _mintableTokenOwner Address of the Mintable Token Owner contract.
     * @param _nativeWrapped Address of the native wrapped token.
     * @param _priceFeed Address of the price feed contract.
     * @param _vaultDeployer Address of the Vault Deployer contract.
     * @param _liquidationRouter Address of the liquidation router contract.
     * @param _borrowRate Address of the borrow rate contract.
     */
    constructor(
        address _mintableTokenOwner,
        address _nativeWrapped,
        address _priceFeed,
        address _vaultDeployer,
        address _liquidationRouter,
        address _borrowRate
    ) VaultFactoryConfig(_vaultDeployer, _liquidationRouter) Ownable(msg.sender) {
        require(
            _mintableTokenOwner != address(0x0),
            'mintable-token-owner-is-0'
        );

        mintableTokenOwner = IMintableTokenOwner(_mintableTokenOwner);
        stable = address(mintableTokenOwner.token());

        require(stable != address(0x0), 'stable-is-0');
        require(_nativeWrapped != address(0x0), 'nativew-is-0');
        require(_priceFeed != address(0x0), 'pricefeed-is-0');
        require(_borrowRate != address(0x0), 'borrow-rate-is-0');

        borrowRate = _borrowRate;
        nativeWrapped = _nativeWrapped;
        priceFeed = _priceFeed;
    }

    /**
     * @dev Fallback function to receive Ether and restricts its usage to a designated sender.
     */
    receive() external payable {
        require(msg.sender == nativeWrapped, 'only-native-wrapped');
    }

    /**
     * @dev Modifier: Allows function execution only by the owner of a specific vault.
     * @param _vault The address of the vault to check ownership.
     */
    modifier onlyVaultOwner(address _vault) {
        require(Vault(_vault).vaultOwner() == _msgSender(), 'only-vault-owner');
        _;
    }

    /**
     * @dev Modifier: Allows function execution by the owner or an operator of a specific vault.
     * @param _vault The address of the vault to check ownership or operator status.
     */
    modifier onlyVaultOwnerOrOperator(address _vault) {
        require(
            Vault(_vault).vaultOwner() == _msgSender() ||
                Vault(_vault).isOperator(_msgSender()),
            'only-vault-owner-or-operator'
        );
        _;
    }

    /**
     * @dev Modifier: Allows function execution only by the liquidation router.
     */
    modifier onlyLiquidationRouter() {
        require(liquidationRouter == _msgSender(), 'only-liquidation-router');
        _;
    }

    /**
     * @dev Checks if a given collateral token is supported.
     * @param _collateral The address of the collateral token.
     * @return A boolean indicating whether the collateral token is supported.
     */
    function isCollateralSupported(
        address _collateral
    ) external view returns (bool) {
        return _isCollateralSupported(_collateral);
    }

    /**
     * @dev Transfers ownership of a vault to a new owner.
     * @param _vault The address of the vault to transfer ownership.
     * @param _newOwner The address of the new owner to receive the vault ownership.
     */
    function transferVaultOwnership(
        address _vault,
        address _newOwner
    ) external onlyVaultOwner(_vault) {
        address _msgSender = _msgSender();
        require(_newOwner != address(0x0), 'new-owner-is-0');
        require(containsVault(_vault), 'vault-not-found');

        emit VaultOwnerChanged(_vault, _msgSender, _newOwner);
        Vault(_vault).transferVaultOwnership(_newOwner);
        _transferVault(_msgSender, _newOwner, _vault);
    }

    /**
     * @dev Creates a new vault with a specified name.
     * @param _name The name of the new vault.
     * @return The address of the newly created vault.
     */
    function createVault(string memory _name) public returns (address) {
        address _msgSender = _msgSender();
        address _vaultAddress = IVaultDeployer(vaultDeployer).deployVault(
            address(this),
            _msgSender,
            _name
        );
        _addVault(_msgSender, _vaultAddress);
        emit NewVault(_vaultAddress, _name, _msgSender);

        return _vaultAddress;
    }

    /**
     * @dev Checks if a specific collateral token is supported for the vault.
     * @param _collateral The address of the collateral token to check.
     * @return A boolean indicating whether the collateral token is supported.
     */
    function _isCollateralSupported(
        address _collateral
    ) internal view returns (bool) {
        ITokenPriceFeed _priceFeed = ITokenPriceFeed(priceFeed);
        return (_priceFeed.tokenPriceFeed(_collateral) != address(0x0));
    }

    /**
     * @dev Adds native-wrapped collateral to a specific vault.
     * @param _vault The address of the vault to add collateral.
     */
    function addCollateralNative(address _vault) external payable {
        require(containsVault(_vault), 'vault-not-found');
        require(
            _isCollateralSupported(nativeWrapped),
            'collateral-not-supported'
        );
        uint256 _amount = msg.value;

        collateral[nativeWrapped] += _amount;

        require(
            collateral[nativeWrapped] <= collateralCap[nativeWrapped],
            'collateral-cap-reached'
        );

        IWETH(nativeWrapped).deposit{value: _amount}();


        IERC20(nativeWrapped).safeTransfer(_vault, _amount);

        Vault(_vault).addCollateral(nativeWrapped, _amount);

    }

    /**
     * @dev Removes native-wrapped collateral from a specific vault.
     * @param _vault The address of the vault to remove collateral.
     * @param _amount The amount of collateral to be removed.
     * @param _to The address where the removed collateral is transferred.
     */
    function removeCollateralNative(
        address _vault,
        uint256 _amount,
        address _to
    ) external onlyVaultOwner(_vault) {
        require(containsVault(_vault), 'vault-not-found');
        require(
            _isCollateralSupported(nativeWrapped),
            'collateral-not-supported'
        );

        Vault(_vault).removeCollateral(nativeWrapped, _amount, address(this));

        collateral[nativeWrapped] -= _amount;

        IWETH(nativeWrapped).withdraw(_amount);
        (bool success, ) = payable(_to).call{value: _amount}("");
        require(success, 'transfer-failed');
    }

    /**
     * @dev Adds a specific collateral to a vault.
     * @param _vault The address of the vault to add collateral.
     * @param _collateral The address of the collateral token to add.
     * @param _amount The amount of collateral to add.
     */
    function addCollateral(
        address _vault,
        address _collateral,
        uint256 _amount
    ) external {
        require(containsVault(_vault), 'vault-not-found');
        require(
            _isCollateralSupported(_collateral),
            'collateral-not-supported'
        );

        collateral[_collateral] += _amount;

        require(
            collateral[_collateral] <= collateralCap[_collateral],
            'collateral-cap-reached'
        );

        IERC20(_collateral).safeTransferFrom(_msgSender(), _vault, _amount);
        Vault(_vault).addCollateral(_collateral, _amount);
    }

    /**
     * @dev Removes a specific collateral from a vault.
     * @param _vault The address of the vault to remove collateral.
     * @param _collateral The address of the collateral token to remove.
     * @param _amount The amount of collateral to remove.
     * @param _to The address where the removed collateral is transferred.
     */
    function removeCollateral(
        address _vault,
        address _collateral,
        uint256 _amount,
        address _to
    ) external onlyVaultOwner(_vault) {
        require(containsVault(_vault), 'vault-not-found');
        require(
            _isCollateralSupported(_collateral),
            'collateral-not-supported'
        );

        collateral[_collateral] -= _amount;
        Vault(_vault).removeCollateral(_collateral, _amount, _to);
    }

    /**
     * @dev Borrows funds from a vault by its owner or an operator.
     * @param _vault The address of the vault from which funds are borrowed.
     * @param _amount The amount of funds to borrow.
     * @param _to The address where borrowed funds are sent.
     */
    function borrow(
        address _vault,
        uint256 _amount,
        address _to
    ) external onlyVaultOwnerOrOperator(_vault) {
        require(containsVault(_vault), 'vault-not-found');
        require(_to != address(0x0), 'to-is-0');

        totalDebt += _amount;
        _updateDebtWindow(_amount);
        Vault(_vault).borrow(_amount);
        uint256 _borrowRate = IVaultBorrowRate(borrowRate).getBorrowRate(
            _vault
        );
        uint256 _feeAmount = (_amount * _borrowRate) / DECIMAL_PRECISION;

        mintableTokenOwner.mint(_to, _amount - _feeAmount);
        mintableTokenOwner.mint(borrowFeeRecipient, _feeAmount);
    }

    /**
     * @dev Distributes bad debt to a specific vault.
     * @param _vault The address of the vault to distribute bad debt.
     * @param _amount The amount of bad debt to be distributed.
     */
    function distributeBadDebt(
        address _vault,
        uint256 _amount
    ) external nonReentrant onlyLiquidationRouter {
        require(containsVault(_vault), 'vault-not-found');
        totalDebt += _amount;
        Vault(_vault).addBadDebt(_amount);
    }

    /**
     * @dev Closes a vault if it meets specific conditions.
     * @param _vault The address of the vault to close.
     */
    function closeVault(address _vault) external onlyVaultOwner(_vault) {
        require(containsVault(_vault), 'vault-not-found');
        require(Vault(_vault).debt() == 0, 'debt-not-0');
        require(Vault(_vault).collateralsLength() == 0, 'collateral-not-0');

        _removeVault(_msgSender(), _vault);
    }

    /**
     * @dev Repays borrowed funds for a specific vault.
     * @param _vault The address of the vault for which funds are repaid.
     * @param _amount The amount of funds to repay.
     */
    function repay(address _vault, uint256 _amount) external onlyVaultOwner(_vault) {
        require(containsVault(_vault), 'vault-not-found');
        totalDebt -= _amount;
        Vault(_vault).repay(_amount);

        IMintableToken(stable).safeTransferFrom(
            _msgSender(),
            address(this),
            _amount
        );
        IMintableToken(stable).burn(_amount);
    }

    /**
     * @dev Redeems collateral from a vault after meeting specific conditions.
     * @param _vault The address of the vault from which collateral is redeemed.
     * @param _collateral The address of the collateral token to redeem.
     * @param _collateralAmount The amount of collateral to redeem.
     * @param _to The address where the redeemed collateral is transferred.
     */
    function redeem(
        address _vault,
        address _collateral,
        uint256 _collateralAmount,
        address _to
    ) external nonReentrant {
        require(publicRedemptions || isAddressRedemptionAllowed[_msgSender()], 'redemption-not-allowed');
        require(containsVault(_vault), 'vault-not-found');
        require(_to != address(0x0), 'to-is-0');

        require(isReedemable(_vault, _collateral), 'not-redeemable');

        (uint256 _debtRepaid, uint256 _feeCollected) = Vault(_vault).redeem(
            _collateral,
            _collateralAmount
        );

        totalDebt -= _debtRepaid;
        collateral[_collateral] -= _collateralAmount;

        IMintableToken(stable).safeTransferFrom(
            _msgSender(),
            address(this),
            _debtRepaid + _feeCollected
        );
        IMintableToken(stable).burn(_debtRepaid);
        IMintableToken(stable).transfer(redemptionFeeRecipient, _feeCollected);

        IERC20(_collateral).safeTransfer(_to, _collateralAmount);
    }

    /**
     * @dev Liquidates a specific vault if it is eligible for liquidation.
     * @param _vault The address of the vault to be liquidated.
     */
    function liquidate(address _vault) external nonReentrant {
        require(containsVault(_vault), 'vault-not-found');

        address _vaultOwner = Vault(_vault).vaultOwner();
        uint256 _forgivenDebt = Vault(_vault).liquidate();

        totalDebt -= _forgivenDebt;

        _removeVault(_vaultOwner, _vault);
    }

    /**
     * @dev Checks if a vault is eligible for liquidation.
     * @param _vault The address of the vault to check for liquidation eligibility.
     * @return A boolean indicating whether the vault is liquidatable.
     */
    function isLiquidatable(address _vault) external view returns (bool) {
        require(containsVault(_vault), 'vault-not-found');
        return Vault(_vault).healthFactor(true) < DECIMAL_PRECISION;
    }

    /**
     * @dev Checks if a specific collateral can be redeemed from a vault based on conditions.
     * @param _vault The address of the vault to check for collateral redemption.
     * @param _collateral The address of the collateral token to check for redemption.
     * @notice Collateral with higher MCR can be redeemed first
     * @return A boolean indicating whether the collateral is redeemable.
     */
    function isReedemable(
        address _vault,
        address _collateral
    ) public view returns (bool) {
        require(
            _isCollateralSupported(_collateral),
            'collateral-not-supported'
        );
        if (!Vault(_vault).containsCollateral(_collateral)) {
            return false;
        }
        uint256 _healthFactor = Vault(_vault).healthFactor(false);
        if (_healthFactor >= redemptionHealthFactorLimit) {
            return false;
        }

        ITokenPriceFeed _priceFeed = ITokenPriceFeed(priceFeed);
        uint256 _collateralMcr = _priceFeed.mcr(_collateral);

        address[] memory _collaterals = Vault(_vault).collaterals();
        uint256 _length = _collaterals.length;

        for (uint256 i; i < _length; i++) {
            if (_collaterals[i] != _collateral) {
                uint256 _mcr = _priceFeed.mcr(_collaterals[i]);
                if (_mcr > _collateralMcr) {
                    return false;
                }
            }
        }
        return true;
    }

    /**
     * @dev Updates the debt window with the newly incurred debt.
     * @param _newDebt The amount of new debt to update in the debt window.
     */
    function _updateDebtWindow(uint256 _newDebt) internal {
        require(totalDebt <= debtCeiling, 'debt-ceiling-reached');

        if (block.timestamp > lastDebtWindow + debtWindowSize) {
            debtWindowAmount = _newDebt;
            lastDebtWindow = block.timestamp;
        } else {
            debtWindowAmount += _newDebt;
        }
        require(
            debtWindowAmount <= maxDebtPerWindow,
            'debt-window-amount-reached'
        );
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;
import './utils/constants.sol';
import '@openzeppelin/contracts/access/Ownable.sol';

abstract contract VaultFactoryConfig is Constants, Ownable {
    event PriceFeedUpdated(address indexed priceFeed);
    event MaxTokensPerVaultUpdated(
        uint256 oldMaxTokensPerVault,
        uint256 newMaxTokensPerVault
    );
    event RedemptionRateUpdated(
        uint256 oldRedemptionRate,
        uint256 newRedemptionRate
    );
    event BorrowRateUpdated(address oldBorrowRate, address newBorrowRate);
    event RedemptionHealthFactorLimitUpdated(
        uint256 oldRedemptionHealthFactorLimit,
        uint256 newRedemptionHealthFactorLimit
    );
    event DebtCeilingUpdated(uint256 oldDebtCeiling, uint256 newDebtCeiling);
    event MaxDebtPerWindowUpdated(
        uint256 oldMaxDebtPerWindow,
        uint256 newMaxDebtPerWindow
    );
    event DebtWindowSizeUpdated(
        uint256 oldDebtWindowSize,
        uint256 newDebtWindowSize
    );
    event CollateralCapacityUpdated(
        address indexed collateral,
        uint256 oldCapacity,
        uint256 newCapacity
    );
    event liquidationRouterUpdated(address indexed liquidationRouter);

    event publicRedemptionsUpdated(bool publicRedemptions);

    // Various configuration parameters
    address public priceFeed;
    address public borrowRate;

    uint256 public MAX_TOKENS_PER_VAULT = 5;
    uint256 public redemptionRate = PERCENT_05; // 0.5%

    uint256 public redemptionHealthFactorLimit = 1.5 ether; // 1.5 HF

    address public borrowFeeRecipient;
    address public redemptionFeeRecipient;

    mapping(address => uint256) public collateralCap;

    uint256 public debtCeiling = type(uint256).max; // max stablecoin debt issued by the protocol

    uint256 public maxDebtPerWindow = 200_000 ether; // 200K
    uint256 public debtWindowSize = 1 hours;
    uint256 public lastDebtWindow;
    uint256 public debtWindowAmount;

    address public vaultDeployer;
    address public liquidationRouter;

    bool public publicRedemptions;

    mapping(address => bool) public isAddressRedemptionAllowed;

    /**
     * @dev Set the public redemptions flag
     * @param _publicRedemptions The new public redemptions flag to be set.
     */
    function setPublicRedemptions(bool _publicRedemptions) external onlyOwner {
        publicRedemptions = _publicRedemptions;
        emit publicRedemptionsUpdated(_publicRedemptions);
    }

    /**
     * @dev Set the redemption allowed for a specific address
     * @param _address Address of the account
     * @param _allowed The new redemption allowed flag to be set.
     */
    function setRedemptionAllowed(address _address, bool _allowed)
        external
        onlyOwner
    {
        isAddressRedemptionAllowed[_address] = _allowed;
    }

    /**
     * @dev Set the address for the Vault Deployer
     * @param _vaultDeployer Address of the Vault Deployer
     */
    function setVaultDeployer(address _vaultDeployer) external onlyOwner {
        require(_vaultDeployer != address(0x0), 'vault-deployer-is-0');
        vaultDeployer = _vaultDeployer;
    }

    /**
     * @dev Set the address for the Liquidation Router
     * @param _liquidationRouter Address of the Liquidation Router
     */
    function setLiquidationRouter(
        address _liquidationRouter
    ) external onlyOwner {
        require(_liquidationRouter != address(0x0), 'liquidation-router-is-0');
        liquidationRouter = _liquidationRouter;
        emit liquidationRouterUpdated(_liquidationRouter);
    }

    /**
     * @dev Set the collateral capacity for a specific collateral token
     * @param _collateral Address of the collateral token
     * @param _cap The new capacity for the collateral token
     */
    function setCollateralCapacity(
        address _collateral,
        uint256 _cap
    ) external onlyOwner {
        require(_collateral != address(0x0), 'collateral-is-0');
        emit CollateralCapacityUpdated(
            _collateral,
            collateralCap[_collateral],
            _cap
        );
        collateralCap[_collateral] = _cap;
    }

    /**
     * @dev Set the debt ceiling value.
     * @param _debtCeiling The new debt ceiling value to be set.
     */
    function setDebtCeiling(uint256 _debtCeiling) external onlyOwner {
        emit DebtCeilingUpdated(debtCeiling, _debtCeiling);
        debtCeiling = _debtCeiling;
    }

    /**
     * @dev Set the maximum debt allowed per window.
     * @param _maxDebtPerWindow The new maximum debt per window value to be set.
     */
    function setMaxDebtPerWindow(uint256 _maxDebtPerWindow) external onlyOwner {
        emit MaxDebtPerWindowUpdated(maxDebtPerWindow, _maxDebtPerWindow);
        maxDebtPerWindow = _maxDebtPerWindow;
    }

    /**
     * @dev Set the window size for debt.
     * @param _debtWindowSize The new debt window size value to be set.
     */
    function setDebtWindowSize(uint256 _debtWindowSize) external onlyOwner {
        emit DebtWindowSizeUpdated(debtWindowSize, _debtWindowSize);
        debtWindowSize = _debtWindowSize;
    }

    /**
     * @dev Set the maximum tokens allowed per vault.
     * @param _maxTokensPerVault The new maximum tokens per vault value to be set.
     */
    function setMaxTokensPerVault(
        uint256 _maxTokensPerVault
    ) external onlyOwner {
        require(_maxTokensPerVault > 0, 'max-tokens-per-vault-is-0');
        emit MaxTokensPerVaultUpdated(MAX_TOKENS_PER_VAULT, _maxTokensPerVault);
        MAX_TOKENS_PER_VAULT = _maxTokensPerVault;
    }

    /**
     * @dev Set the address for the price feed.
     * @param _priceFeed Address of the new price feed contract.
     */
    function setPriceFeed(address _priceFeed) external onlyOwner {
        require(_priceFeed != address(0x0), 'pricefeed-is-0');
        priceFeed = _priceFeed;
        emit PriceFeedUpdated(_priceFeed);
    }

    /**
     * @dev Set the redemption rate for the protocol.
     * @param _redemptionRate The new redemption rate value to be set.
     */
    function setRedemptionRate(uint256 _redemptionRate) external onlyOwner {
        require(
            _redemptionRate <= MAX_REDEMPTION_RATE,
            'redemption-rate-too-high'
        );
        emit RedemptionRateUpdated(redemptionRate, _redemptionRate);
        redemptionRate = _redemptionRate;
    }

    /**
     * @dev Set the address for the borrow rate.
     * @param _borrowRate Address of the new borrow rate contract.
     */
    function setBorrowRate(address _borrowRate) external onlyOwner {
        require(_borrowRate != address(0), 'borrow-rate-is-0');
        emit BorrowRateUpdated(borrowRate, _borrowRate);
        borrowRate = _borrowRate;
    }

    /**
     * @dev Set the redemption health factor limit.
     * @param _redemptionHealthFactorLimit The new redemption health factor limit to be set.
     */
    function setRedemptionHealthFactorLimit(
        uint256 _redemptionHealthFactorLimit
    ) external onlyOwner {
        emit RedemptionHealthFactorLimitUpdated(
            redemptionHealthFactorLimit,
            _redemptionHealthFactorLimit
        );
        redemptionHealthFactorLimit = _redemptionHealthFactorLimit;
    }

    /**
     * @dev Set the address for the borrow fee recipient.
     * @param _borrowFeeRecipient Address of the new borrow fee recipient.
     */
    function setBorrowFeeRecipient(
        address _borrowFeeRecipient
    ) external onlyOwner {
        require(
            _borrowFeeRecipient != address(0x0),
            'borrow-fee-recipient-is-0'
        );
        borrowFeeRecipient = _borrowFeeRecipient;
    }

    /**
     * @dev Set the address for the redemption fee recipient.
     * @param _redemptionFeeRecipient Address of the new redemption fee recipient.
     */
    function setRedemptionFeeRecipient(
        address _redemptionFeeRecipient
    ) external onlyOwner {
        require(
            _redemptionFeeRecipient != address(0x0),
            'redemption-fee-recipient-is-0'
        );
        redemptionFeeRecipient = _redemptionFeeRecipient;
    }

    /**
     * @dev Constructor to initialize the configuration settings upon deployment
     * @param _vaultDeployer Address of the Vault Deployer
     * @param _liquidationRouter Address of the Liquidation Router
     */
    constructor(address _vaultDeployer, address _liquidationRouter) {
        require(_vaultDeployer != address(0x0), 'vault-deployer-is-0');
        require(_liquidationRouter != address(0x0), 'liquidation-factory-is-0');
        vaultDeployer = _vaultDeployer;
        borrowFeeRecipient = _msgSender();
        redemptionFeeRecipient = _msgSender();
        lastDebtWindow = block.timestamp;
        liquidationRouter = _liquidationRouter;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import './interfaces/IVaultFactory.sol';
import './interfaces/IVault.sol';
import './interfaces/ITokenPriceFeed.sol';

/**
 * @title VaultFactoryHelper
 * @notice Helper contract providing various functions to retrieve information about vaults in a vault factory
 */
contract VaultFactoryHelper {
    uint256 public constant DECIMAL_PRECISION = 1e18;

    /**
     * @notice Retrieves all vault addresses within a vault factory
     * @param _vaultFactory Address of the vault factory
     * @return An array of vault addresses
     */
    function getAllVaults(
        address _vaultFactory
    ) public view returns (address[] memory) {
        IVaultFactory vaultFactory = IVaultFactory(_vaultFactory);
        uint256 vaultCount = vaultFactory.vaultCount();
        if (vaultCount == 0) {
            return new address[](0);
        } else {
            address[] memory vaults = new address[](vaultCount);
            vaults[0] = vaultFactory.firstVault();
            for (uint256 i = 1; i < vaultCount; i++) {
                vaults[i] = vaultFactory.nextVault(vaults[i - 1]);
            }
            return vaults;
        }
    }

    /**
     * @notice Retrieves the Total Value Locked (TVL) of a specific vault based on a single collateral type
     * @param _vaultAddress Address of the vault
     * @param _collateralAddress Address of the collateral asset
     * @return The TVL of the vault for the given collateral
     */
    function getVaultTvlByCollateral(
        address _vaultAddress,
        address _collateralAddress
    ) public view returns (uint256) {
        IVault _vault = IVault(_vaultAddress);
        uint256 _collateralAmount = _vault.collateral(_collateralAddress);
        ITokenPriceFeed _priceFeed = ITokenPriceFeed(
            IVaultFactory(_vault.factory()).priceFeed()
        );
        uint256 _price = _priceFeed.tokenPrice(_collateralAddress);
        uint256 _normalizedCollateralAmount = _collateralAmount *
            (10 ** (18 - _priceFeed.decimals(_collateralAddress)));
        uint256 _tvl = (_normalizedCollateralAmount * _price) /
            DECIMAL_PRECISION;
        return _tvl;
    }

    /**
     * @notice Retrieves the Total Value Locked (TVL) of a vault across all collateral types it holds
     * @param _vault Address of the vault
     * @return The total TVL of the vault across all collateral types
     */
    function getVaultTvl(address _vault) public view returns (uint256) {
        IVault vault = IVault(_vault);
        uint256 tvl = 0;
        for (uint256 i = 0; i < vault.collateralsLength(); i++) {
            address _collateralAddress = vault.collateralAt(i);
            tvl += getVaultTvlByCollateral(_vault, _collateralAddress);
        }
        return tvl;
    }

    /**
     * @notice Retrieves an array of liquidatable vault addresses within a vault factory
     * @param _vaultFactory Address of the vault factory
     * @return An array of liquidatable vault addresses
     */
    function getLiquidatableVaults(
        address _vaultFactory
    ) public view returns (address[] memory) {
        IVaultFactory vaultFactory = IVaultFactory(_vaultFactory);
        uint256 vaultCount = vaultFactory.vaultCount();
        uint256 liquidatableVaultCount = 0;
        if (vaultCount == 0) {
            return new address[](0);
        } else {
            address[] memory _vaults = getAllVaults(_vaultFactory);
            address[] memory _liquidatableVaults = new address[](vaultCount);

            for (uint256 i = 0; i < vaultCount; i++) {
                IVault _vault = IVault(_vaults[i]);
                if (vaultFactory.isLiquidatable(address(_vault))) {
                    _liquidatableVaults[liquidatableVaultCount] = address(
                        _vault
                    );
                    liquidatableVaultCount++;
                }
            }

            address[] memory liquidatableVaults = new address[](
                liquidatableVaultCount
            );
            for (uint256 i = 0; i < liquidatableVaultCount; i++) {
                liquidatableVaults[i] = _liquidatableVaults[i];
            }

            return liquidatableVaults;
        }
    }

    /**
     * @notice Retrieves an array of redeemable vault addresses and their corresponding redeemable collaterals
     * @param _vaultFactory Address of the vault factory
     * @param _useMlr Boolean indicating whether to use MLR for health factor calculation
     * @return redeemableVaults An array of redeemable vault addresses
     * @return redeemableCollaterals An array of corresponding redeemable collateral addresses
     */
    function getRedeemableVaults(
        address _vaultFactory,
        bool _useMlr
    )
        public
        view
        returns (
            address[] memory redeemableVaults,
            address[] memory redeemableCollaterals
        )
    {
        IVaultFactory vaultFactory = IVaultFactory(_vaultFactory);
        uint256 vaultCount = vaultFactory.vaultCount();
        uint256 redeemableVaultCount = 0;
        uint256 healthFactorLimit = vaultFactory.redemptionHealthFactorLimit();
        if (vaultCount == 0) {
            return (new address[](0), new address[](0));
        } else {
            address[] memory _vaults = getAllVaults(_vaultFactory);
            address[] memory _redeemableVaults = new address[](vaultCount);
            address[] memory _redeemableCollaterals = new address[](vaultCount);

            for (uint256 i = 0; i < vaultCount; i++) {
                IVault _vault = IVault(_vaults[i]);
                if (_vault.healthFactor(_useMlr) < healthFactorLimit) {
                    _redeemableVaults[redeemableVaultCount] = address(_vault);

                    address[] memory _collaterals = getVaultCollaterals(
                        address(_vault)
                    );

                    for (uint256 j = 0; j < _collaterals.length; j++) {
                        if (
                            vaultFactory.isReedemable(
                                address(_vault),
                                _collaterals[j]
                            )
                        ) {
                            _redeemableCollaterals[
                                redeemableVaultCount
                            ] = _collaterals[j];
                            break;
                        }
                    }

                    redeemableVaultCount++;
                }
            }

            redeemableVaults = new address[](redeemableVaultCount);
            redeemableCollaterals = new address[](redeemableVaultCount);

            for (uint256 i = 0; i < redeemableVaultCount; i++) {
                redeemableVaults[i] = _redeemableVaults[i];
                redeemableCollaterals[i] = _redeemableCollaterals[i];
            }
        }
    }

    /**
     * @notice Retrieves an array of collateral asset addresses held by a specific vault
     * @param _vault Address of the vault
     * @return An array of collateral asset addresses
     */
    function getVaultCollaterals(
        address _vault
    ) public view returns (address[] memory) {
        IVault vault = IVault(_vault);
        uint256 collateralsLength = vault.collateralsLength();
        if (collateralsLength == 0) {
            return new address[](0);
        } else {
            address[] memory collaterals = new address[](collateralsLength);
            for (uint256 i = 0; i < collateralsLength; i++) {
                collaterals[i] = vault.collateralAt(i);
            }
            return collaterals;
        }
    }

    /**
     * @notice Calculates the Total Value Locked (TVL) across all vaults within a vault factory
     * @param _vaultFactory Address of the vault factory
     * @return The total TVL across all vaults in the factory
     */
    function getProtocolTvl(
        address _vaultFactory
    ) public view returns (uint256) {
        IVaultFactory vaultFactory = IVaultFactory(_vaultFactory);
        uint256 vaultCount = vaultFactory.vaultCount();
        uint256 tvl = 0;
        if (vaultCount == 0) {
            return 0;
        } else {
            address[] memory _vaults = getAllVaults(_vaultFactory);
            for (uint256 i = 0; i < vaultCount; i++) {
                tvl += getVaultTvl(_vaults[i]);
            }
            return tvl;
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;
import './utils/constants.sol';
import './utils/linked-address-list.sol';
// import openzeppelin context
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';

/**
 * @title VaultFactoryList
 * @dev Manages a list of vaults by their owners, allowing addition, removal, and transfer of vaults.
 */
abstract contract VaultFactoryList is Context {
    using LinkedAddressList for LinkedAddressList.List;
    using EnumerableSet for EnumerableSet.AddressSet;

    LinkedAddressList.List _vaults;
    mapping(address => EnumerableSet.AddressSet) private _vaultsByOwner;

    function vaultsByOwnerLength(
        address _owner
    ) external view returns (uint256) {
        return _vaultsByOwner[_owner].length();
    }

    function vaultsByOwner(
        address _owner,
        uint256 _index
    ) external view returns (address) {
        return _vaultsByOwner[_owner].at(_index);
    }

    function _addVault(address _owner, address _vault) internal {
        require(
            _vaults.add(_vault, address(0x0), false),
            'vault-could-not-be-added'
        );
        _vaultsByOwner[_owner].add(_vault);
    }

    function _transferVault(
        address _from,
        address _to,
        address _vault
    ) internal {
        _vaultsByOwner[_from].remove(_vault);
        _vaultsByOwner[_to].add(_vault);
    }

    function _removeVault(address _owner, address _vault) internal {
        require(_vaults.remove(_vault), 'vault-could-not-be-removed');
        _vaultsByOwner[_owner].remove(_vault);
    }

    /**
     * @dev returns the number of vaults for specific token
     */
    function vaultCount() public view returns (uint256) {
        return _vaults._size;
    }

    /**
     * @dev returns the last vault by maximum collaterization ratio
     */
    function lastVault() public view returns (address) {
        return _vaults._last;
    }

    /**
     * @dev returns the first vault by minimal collaterization ratio
     */
    function firstVault() public view returns (address) {
        return _vaults._first;
    }

    /**
     * @dev returns the next vault by collaterization ratio
     */
    function nextVault(address _vault) public view returns (address) {
        return _vaults._values[_vault].next;
    }

    /**
     * @dev returns the previous vault by collaterization ratio
     */
    function prevVault(address _vault) public view returns (address) {
        return _vaults._values[_vault].prev;
    }

    /**
     * @dev Checks if a vault exists for a specific token.
     * @param _vault The address of the vault to check.
     * @return A boolean indicating whether the vault exists.
     */
    function containsVault(address _vault) public view returns (bool) {
        return _vaults._values[_vault].next != address(0x0);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import './interfaces/IVaultFactory.sol';
import './interfaces/IVault.sol';
import './interfaces/ITokenPriceFeed.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';

/**
 * @title VaultFactoryZapper
 * @dev A contract that facilitates the creation of Vaults and manages their operations.
 */
contract VaultFactoryZapper is Ownable {
    using SafeERC20 for IERC20;

    IVaultFactory public vaultFactory; // Interface for interacting with VaultFactory
    string public prefix = 'MyVault'; // Prefix for the Vault name

    receive() external payable {} // Fallback function to receive Matic

    /**
     * @dev Sets the VaultFactory contract address.
     * @param _vaultFactory Address of the VaultFactory contract.
     */
    function setVaultFactory(address _vaultFactory) public onlyOwner {
        require(_vaultFactory != address(0), 'VaultFactory: zero address');
        vaultFactory = IVaultFactory(_vaultFactory);
    }

    /**
     * @dev Sets the prefix for Vault names.
     * @param _prefix New prefix for Vault names.
     */
    function setPrefix(string memory _prefix) public onlyOwner {
        prefix = _prefix;
    }

    /**
     * @dev Constructor to initialize the contract with the VaultFactory address.
     * @param _vaultFactory Address of the VaultFactory contract.
     */
    constructor(address _vaultFactory) Ownable(msg.sender) {
        setVaultFactory(_vaultFactory);
    }

    /**
     * @dev Internal function to generate the name for the next Vault.
     * @param _owner Address of the Vault owner.
     * @return Name for the next Vault.
     */
    function _getNextVaultName(
        address _owner
    ) internal view returns (string memory) {
        uint256 vaultCount = vaultFactory.vaultsByOwnerLength(_owner) + 1;
        return string.concat(prefix, uint2str(vaultCount));
    }

    /**
     * @dev Creates a new Vault.
     * @param _collateralToken Address of the collateral token.
     * @param _collateralAmount Amount of collateral tokens to be deposited.
     * @param _borrowAmount Amount of tokens to be borrowed against the collateral.
     * @return _vault Address of the newly created Vault.
     */
    function createVault(
        address _collateralToken,
        uint256 _collateralAmount,
        uint256 _borrowAmount
    ) external returns (address _vault) {
        _vault = vaultFactory.createVault(_getNextVaultName(msg.sender));

        if (_collateralAmount > 0) {
            IERC20(_collateralToken).safeTransferFrom(
                msg.sender,
                address(this),
                _collateralAmount
            );
            IERC20(_collateralToken).safeIncreaseAllowance(
                address(vaultFactory),
                _collateralAmount
            );
            vaultFactory.addCollateral(
                _vault,
                _collateralToken,
                _collateralAmount
            );
            if (_borrowAmount > 0) {
                vaultFactory.borrow(_vault, _borrowAmount, msg.sender);
            }
        }

        vaultFactory.transferVaultOwnership(_vault, msg.sender);
    }

    /**
     * @dev Creates a new Vault with native (Matic) collateral.
     * @param _borrowAmount Amount of tokens to be borrowed against the collateral.
     * @return _vault Address of the newly created Vault.
     */
    function createVaultNative(
        uint256 _borrowAmount
    ) external payable returns (address _vault) {
        _vault = vaultFactory.createVault(_getNextVaultName(msg.sender));

        if (msg.value > 0) {
            vaultFactory.addCollateralNative{value: msg.value}(_vault);
            if (_borrowAmount > 0) {
                vaultFactory.borrow(_vault, _borrowAmount, msg.sender);
            }
        }
        vaultFactory.transferVaultOwnership(_vault, msg.sender);
    }

    /**
     * @dev Converts uint to a string.
     * @param _i Unsigned integer to be converted.
     * @return _uintAsString String representation of the input integer.
     */
    function uint2str(
        uint _i
    ) internal pure returns (string memory _uintAsString) {
        if (_i == 0) {
            return '0';
        }
        uint j = _i;
        uint len;
        while (j != 0) {
            len++;
            j /= 10;
        }
        bytes memory bstr = new bytes(len);
        uint k = len;
        while (_i != 0) {
            k = k - 1;
            uint8 temp = (48 + uint8(_i - (_i / 10) * 10));
            bytes1 b1 = bytes1(temp);
            bstr[k] = b1;
            _i /= 10;
        }
        return string(bstr);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.4.22 <0.9.0;

library console {
    address constant CONSOLE_ADDRESS =
        0x000000000000000000636F6e736F6c652e6c6f67;

    function _sendLogPayloadImplementation(bytes memory payload) internal view {
        address consoleAddress = CONSOLE_ADDRESS;
        /// @solidity memory-safe-assembly
        assembly {
            pop(
                staticcall(
                    gas(),
                    consoleAddress,
                    add(payload, 32),
                    mload(payload),
                    0,
                    0
                )
            )
        }
    }

    function _castToPure(
      function(bytes memory) internal view fnIn
    ) internal pure returns (function(bytes memory) pure fnOut) {
        assembly {
            fnOut := fnIn
        }
    }

    function _sendLogPayload(bytes memory payload) internal pure {
        _castToPure(_sendLogPayloadImplementation)(payload);
    }

    function log() internal pure {
        _sendLogPayload(abi.encodeWithSignature("log()"));
    }
    function logInt(int256 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(int256)", p0));
    }

    function logUint(uint256 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256)", p0));
    }

    function logString(string memory p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string)", p0));
    }

    function logBool(bool p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool)", p0));
    }

    function logAddress(address p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address)", p0));
    }

    function logBytes(bytes memory p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0));
    }

    function logBytes1(bytes1 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0));
    }

    function logBytes2(bytes2 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0));
    }

    function logBytes3(bytes3 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0));
    }

    function logBytes4(bytes4 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0));
    }

    function logBytes5(bytes5 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0));
    }

    function logBytes6(bytes6 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0));
    }

    function logBytes7(bytes7 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0));
    }

    function logBytes8(bytes8 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0));
    }

    function logBytes9(bytes9 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0));
    }

    function logBytes10(bytes10 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0));
    }

    function logBytes11(bytes11 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0));
    }

    function logBytes12(bytes12 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0));
    }

    function logBytes13(bytes13 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0));
    }

    function logBytes14(bytes14 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0));
    }

    function logBytes15(bytes15 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0));
    }

    function logBytes16(bytes16 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0));
    }

    function logBytes17(bytes17 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0));
    }

    function logBytes18(bytes18 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0));
    }

    function logBytes19(bytes19 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0));
    }

    function logBytes20(bytes20 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0));
    }

    function logBytes21(bytes21 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0));
    }

    function logBytes22(bytes22 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0));
    }

    function logBytes23(bytes23 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0));
    }

    function logBytes24(bytes24 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0));
    }

    function logBytes25(bytes25 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0));
    }

    function logBytes26(bytes26 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0));
    }

    function logBytes27(bytes27 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0));
    }

    function logBytes28(bytes28 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0));
    }

    function logBytes29(bytes29 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0));
    }

    function logBytes30(bytes30 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0));
    }

    function logBytes31(bytes31 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0));
    }

    function logBytes32(bytes32 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0));
    }

    function log(uint256 p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256)", p0));
    }

    function log(string memory p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string)", p0));
    }

    function log(bool p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool)", p0));
    }

    function log(address p0) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address)", p0));
    }

    function log(uint256 p0, uint256 p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256)", p0, p1));
    }

    function log(uint256 p0, string memory p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string)", p0, p1));
    }

    function log(uint256 p0, bool p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool)", p0, p1));
    }

    function log(uint256 p0, address p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address)", p0, p1));
    }

    function log(string memory p0, uint256 p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256)", p0, p1));
    }

    function log(string memory p0, string memory p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1));
    }

    function log(string memory p0, bool p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1));
    }

    function log(string memory p0, address p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1));
    }

    function log(bool p0, uint256 p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256)", p0, p1));
    }

    function log(bool p0, string memory p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1));
    }

    function log(bool p0, bool p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1));
    }

    function log(bool p0, address p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1));
    }

    function log(address p0, uint256 p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256)", p0, p1));
    }

    function log(address p0, string memory p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1));
    }

    function log(address p0, bool p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1));
    }

    function log(address p0, address p1) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1));
    }

    function log(uint256 p0, uint256 p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256)", p0, p1, p2));
    }

    function log(uint256 p0, uint256 p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string)", p0, p1, p2));
    }

    function log(uint256 p0, uint256 p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool)", p0, p1, p2));
    }

    function log(uint256 p0, uint256 p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address)", p0, p1, p2));
    }

    function log(uint256 p0, string memory p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256)", p0, p1, p2));
    }

    function log(uint256 p0, string memory p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string)", p0, p1, p2));
    }

    function log(uint256 p0, string memory p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool)", p0, p1, p2));
    }

    function log(uint256 p0, string memory p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address)", p0, p1, p2));
    }

    function log(uint256 p0, bool p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256)", p0, p1, p2));
    }

    function log(uint256 p0, bool p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string)", p0, p1, p2));
    }

    function log(uint256 p0, bool p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool)", p0, p1, p2));
    }

    function log(uint256 p0, bool p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address)", p0, p1, p2));
    }

    function log(uint256 p0, address p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256)", p0, p1, p2));
    }

    function log(uint256 p0, address p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string)", p0, p1, p2));
    }

    function log(uint256 p0, address p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool)", p0, p1, p2));
    }

    function log(uint256 p0, address p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address)", p0, p1, p2));
    }

    function log(string memory p0, uint256 p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256)", p0, p1, p2));
    }

    function log(string memory p0, uint256 p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string)", p0, p1, p2));
    }

    function log(string memory p0, uint256 p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool)", p0, p1, p2));
    }

    function log(string memory p0, uint256 p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address)", p0, p1, p2));
    }

    function log(string memory p0, string memory p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256)", p0, p1, p2));
    }

    function log(string memory p0, string memory p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2));
    }

    function log(string memory p0, string memory p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2));
    }

    function log(string memory p0, string memory p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2));
    }

    function log(string memory p0, bool p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256)", p0, p1, p2));
    }

    function log(string memory p0, bool p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2));
    }

    function log(string memory p0, bool p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2));
    }

    function log(string memory p0, bool p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2));
    }

    function log(string memory p0, address p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256)", p0, p1, p2));
    }

    function log(string memory p0, address p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2));
    }

    function log(string memory p0, address p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2));
    }

    function log(string memory p0, address p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2));
    }

    function log(bool p0, uint256 p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256)", p0, p1, p2));
    }

    function log(bool p0, uint256 p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string)", p0, p1, p2));
    }

    function log(bool p0, uint256 p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool)", p0, p1, p2));
    }

    function log(bool p0, uint256 p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address)", p0, p1, p2));
    }

    function log(bool p0, string memory p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256)", p0, p1, p2));
    }

    function log(bool p0, string memory p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2));
    }

    function log(bool p0, string memory p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2));
    }

    function log(bool p0, string memory p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2));
    }

    function log(bool p0, bool p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256)", p0, p1, p2));
    }

    function log(bool p0, bool p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2));
    }

    function log(bool p0, bool p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2));
    }

    function log(bool p0, bool p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2));
    }

    function log(bool p0, address p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256)", p0, p1, p2));
    }

    function log(bool p0, address p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2));
    }

    function log(bool p0, address p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2));
    }

    function log(bool p0, address p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2));
    }

    function log(address p0, uint256 p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256)", p0, p1, p2));
    }

    function log(address p0, uint256 p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string)", p0, p1, p2));
    }

    function log(address p0, uint256 p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool)", p0, p1, p2));
    }

    function log(address p0, uint256 p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address)", p0, p1, p2));
    }

    function log(address p0, string memory p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256)", p0, p1, p2));
    }

    function log(address p0, string memory p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2));
    }

    function log(address p0, string memory p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2));
    }

    function log(address p0, string memory p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2));
    }

    function log(address p0, bool p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256)", p0, p1, p2));
    }

    function log(address p0, bool p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2));
    }

    function log(address p0, bool p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2));
    }

    function log(address p0, bool p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2));
    }

    function log(address p0, address p1, uint256 p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256)", p0, p1, p2));
    }

    function log(address p0, address p1, string memory p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2));
    }

    function log(address p0, address p1, bool p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2));
    }

    function log(address p0, address p1, address p2) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2));
    }

    function log(uint256 p0, uint256 p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, uint256 p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, string memory p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, bool p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,address)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,uint256)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,string)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,bool)", p0, p1, p2, p3));
    }

    function log(uint256 p0, address p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, uint256 p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, string memory p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, bool p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint256)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3));
    }

    function log(string memory p0, address p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,string)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,address)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,string)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,address)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,string)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,address)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,string)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, uint256 p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,address)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,string)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,address)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, string memory p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,string)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,address)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, bool p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,string)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,address)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint256)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3));
    }

    function log(bool p0, address p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,string)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,bool)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,address)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,string)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,bool)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,address)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,string)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,bool)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,address)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,string)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,bool)", p0, p1, p2, p3));
    }

    function log(address p0, uint256 p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,address)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,string)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,bool)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,address)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3));
    }

    function log(address p0, string memory p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,string)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,bool)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,address)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3));
    }

    function log(address p0, bool p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, uint256 p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, uint256 p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,string)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, uint256 p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,bool)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, uint256 p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,address)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, string memory p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, string memory p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, string memory p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, string memory p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, bool p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, bool p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, bool p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, bool p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, address p2, uint256 p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint256)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, address p2, string memory p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, address p2, bool p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3));
    }

    function log(address p0, address p1, address p2, address p3) internal pure {
        _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3));
    }

}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC20InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC20InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC20InvalidSender","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"}],"name":"ERC20InvalidSpender","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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-----Decoded View---------------
Arg [0] : name (string): taoUSD
Arg [1] : symbol (string): taoUSD

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [3] : 74616f5553440000000000000000000000000000000000000000000000000000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [5] : 74616f5553440000000000000000000000000000000000000000000000000000