Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;

import {ERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {ERC4626} from "@openzeppelin/contracts/token/ERC20/extensions/ERC4626.sol";
import {Transferer} from "../../Transferer.sol";

contract hToken is Transferer, ERC4626, Ownable {
    address public externalAction;
    address public hinkalAddress;

    event RewardAdded(uint256 assets);

    uint256 private _totalAssets = 0;

    error MustBeExternalAction();
    error NoShares();

    constructor(
        string memory name_,
        string memory symbol_,
        IERC20 _baseToken,
        address _hinkalAddress,
        address _externalAction
    ) ERC4626(_baseToken) ERC20(name_, symbol_) {
        externalAction = _externalAction;
        hinkalAddress = _hinkalAddress;
    }

    modifier onlyExternalAction(address caller) {
        if (caller != externalAction) revert MustBeExternalAction();
        _;
    }

    function setHinkalAddress(address _hinkalAddress) external onlyOwner {
        hinkalAddress = _hinkalAddress;
    }

    function setExternalAction(address _externalAction) external onlyOwner {
        externalAction = _externalAction;
    }

    function _deposit(
        address caller,
        address receiver,
        uint256 assets,
        uint256 shares
    ) internal virtual override onlyExternalAction(caller) {
        _mint(receiver, shares);

        emit Deposit(caller, receiver, assets, shares);
        _totalAssets += assets;
    }

    function _withdraw(
        address caller,
        address receiver,
        address owner,
        uint256 assets,
        uint256 shares
    ) internal virtual override onlyExternalAction(caller) {
        if (caller != owner) {
            _spendAllowance(owner, caller, shares);
        }
        _burn(owner, shares);

        emit Withdraw(caller, receiver, owner, assets, shares);
        _totalAssets -= assets;
    }

    function totalAssets() public view override returns (uint256) {
        return _totalAssets;
    }

    function addReward(uint256 assets) external payable onlyOwner {
        if (totalSupply() == 0) revert NoShares();
        _totalAssets += assets;
        transferTokenFrom(asset(), msg.sender, hinkalAddress, assets, 0);
        emit RewardAdded(assets);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../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.
 *
 * By default, the owner account will be the one that deploys the contract. 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;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @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 {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _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 v4.4.1 (interfaces/IERC20.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";
import "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 *
 * _Available since v4.7._
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );

    /**
     * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
     *
     * - MUST be an ERC-20 token contract.
     * - MUST NOT revert.
     */
    function asset() external view returns (address assetTokenAddress);

    /**
     * @dev Returns the total amount of the underlying asset that is “managed” by Vault.
     *
     * - SHOULD include any compounding that occurs from yield.
     * - MUST be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT revert.
     */
    function totalAssets() external view returns (uint256 totalManagedAssets);

    /**
     * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToShares(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
     * through a deposit call.
     *
     * - MUST return a limited value if receiver is subject to some deposit limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
     * - MUST NOT revert.
     */
    function maxDeposit(address receiver) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
     *   call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
     *   in the same transaction.
     * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
     *   deposit would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewDeposit(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   deposit execution, and are accounted for during deposit.
     * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function deposit(uint256 assets, address receiver) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
     * - MUST return a limited value if receiver is subject to some mint limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
     * - MUST NOT revert.
     */
    function maxMint(address receiver) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
     *   in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
     *   same transaction.
     * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
     *   would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by minting.
     */
    function previewMint(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
     *   execution, and are accounted for during mint.
     * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function mint(uint256 shares, address receiver) external returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
     * Vault, through a withdraw call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxWithdraw(address owner) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
     *   call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
     *   called
     *   in the same transaction.
     * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
     *   the withdrawal would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewWithdraw(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   withdraw execution, and are accounted for during withdraw.
     * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
     * through a redeem call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxRedeem(address owner) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
     *   in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
     *   same transaction.
     * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
     *   redemption would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by redeeming.
     */
    function previewRedeem(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   redeem execution, and are accounted for during redeem.
     * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol)

pragma solidity ^0.8.0;

import "../token/ERC721/IERC721.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @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;

    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
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // 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 v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.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}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * 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.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => 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 override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override 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 override returns (uint8) {
        return 18;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override 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 `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

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

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` 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 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        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 `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `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.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` 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.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/ERC4626.sol)

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../utils/SafeERC20.sol";
import "../../../interfaces/IERC4626.sol";
import "../../../utils/math/Math.sol";

/**
 * @dev Implementation of the ERC4626 "Tokenized Vault Standard" as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[EIP-4626].
 *
 * This extension allows the minting and burning of "shares" (represented using the ERC20 inheritance) in exchange for
 * underlying "assets" through standardized {deposit}, {mint}, {redeem} and {burn} workflows. This contract extends
 * the ERC20 standard. Any additional extensions included along it would affect the "shares" token represented by this
 * contract and not the "assets" token which is an independent contract.
 *
 * [CAUTION]
 * ====
 * In empty (or nearly empty) ERC-4626 vaults, deposits are at high risk of being stolen through frontrunning
 * with a "donation" to the vault that inflates the price of a share. This is variously known as a donation or inflation
 * attack and is essentially a problem of slippage. Vault deployers can protect against this attack by making an initial
 * deposit of a non-trivial amount of the asset, such that price manipulation becomes infeasible. Withdrawals may
 * similarly be affected by slippage. Users can protect against this attack as well as unexpected slippage in general by
 * verifying the amount received is as expected, using a wrapper that performs these checks such as
 * https://github.com/fei-protocol/ERC4626#erc4626router-and-base[ERC4626Router].
 *
 * Since v4.9, this implementation uses virtual assets and shares to mitigate that risk. The `_decimalsOffset()`
 * corresponds to an offset in the decimal representation between the underlying asset's decimals and the vault
 * decimals. This offset also determines the rate of virtual shares to virtual assets in the vault, which itself
 * determines the initial exchange rate. While not fully preventing the attack, analysis shows that the default offset
 * (0) makes it non-profitable, as a result of the value being captured by the virtual shares (out of the attacker's
 * donation) matching the attacker's expected gains. With a larger offset, the attack becomes orders of magnitude more
 * expensive than it is profitable. More details about the underlying math can be found
 * xref:erc4626.adoc#inflation-attack[here].
 *
 * The drawback of this approach is that the virtual shares do capture (a very small) part of the value being accrued
 * to the vault. Also, if the vault experiences losses, the users try to exit the vault, the virtual shares and assets
 * will cause the first user to exit to experience reduced losses in detriment to the last users that will experience
 * bigger losses. Developers willing to revert back to the pre-v4.9 behavior just need to override the
 * `_convertToShares` and `_convertToAssets` functions.
 *
 * To learn more, check out our xref:ROOT:erc4626.adoc[ERC-4626 guide].
 * ====
 *
 * _Available since v4.7._
 */
abstract contract ERC4626 is ERC20, IERC4626 {
    using Math for uint256;

    IERC20 private immutable _asset;
    uint8 private immutable _underlyingDecimals;

    /**
     * @dev Set the underlying asset contract. This must be an ERC20-compatible contract (ERC20 or ERC777).
     */
    constructor(IERC20 asset_) {
        (bool success, uint8 assetDecimals) = _tryGetAssetDecimals(asset_);
        _underlyingDecimals = success ? assetDecimals : 18;
        _asset = asset_;
    }

    /**
     * @dev Attempts to fetch the asset decimals. A return value of false indicates that the attempt failed in some way.
     */
    function _tryGetAssetDecimals(IERC20 asset_) private view returns (bool, uint8) {
        (bool success, bytes memory encodedDecimals) = address(asset_).staticcall(
            abi.encodeWithSelector(IERC20Metadata.decimals.selector)
        );
        if (success && encodedDecimals.length >= 32) {
            uint256 returnedDecimals = abi.decode(encodedDecimals, (uint256));
            if (returnedDecimals <= type(uint8).max) {
                return (true, uint8(returnedDecimals));
            }
        }
        return (false, 0);
    }

    /**
     * @dev Decimals are computed by adding the decimal offset on top of the underlying asset's decimals. This
     * "original" value is cached during construction of the vault contract. If this read operation fails (e.g., the
     * asset has not been created yet), a default of 18 is used to represent the underlying asset's decimals.
     *
     * See {IERC20Metadata-decimals}.
     */
    function decimals() public view virtual override(IERC20Metadata, ERC20) returns (uint8) {
        return _underlyingDecimals + _decimalsOffset();
    }

    /** @dev See {IERC4626-asset}. */
    function asset() public view virtual override returns (address) {
        return address(_asset);
    }

    /** @dev See {IERC4626-totalAssets}. */
    function totalAssets() public view virtual override returns (uint256) {
        return _asset.balanceOf(address(this));
    }

    /** @dev See {IERC4626-convertToShares}. */
    function convertToShares(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-convertToAssets}. */
    function convertToAssets(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-maxDeposit}. */
    function maxDeposit(address) public view virtual override returns (uint256) {
        return type(uint256).max;
    }

    /** @dev See {IERC4626-maxMint}. */
    function maxMint(address) public view virtual override returns (uint256) {
        return type(uint256).max;
    }

    /** @dev See {IERC4626-maxWithdraw}. */
    function maxWithdraw(address owner) public view virtual override returns (uint256) {
        return _convertToAssets(balanceOf(owner), Math.Rounding.Down);
    }

    /** @dev See {IERC4626-maxRedeem}. */
    function maxRedeem(address owner) public view virtual override returns (uint256) {
        return balanceOf(owner);
    }

    /** @dev See {IERC4626-previewDeposit}. */
    function previewDeposit(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-previewMint}. */
    function previewMint(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, Math.Rounding.Up);
    }

    /** @dev See {IERC4626-previewWithdraw}. */
    function previewWithdraw(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, Math.Rounding.Up);
    }

    /** @dev See {IERC4626-previewRedeem}. */
    function previewRedeem(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-deposit}. */
    function deposit(uint256 assets, address receiver) public virtual override returns (uint256) {
        require(assets <= maxDeposit(receiver), "ERC4626: deposit more than max");

        uint256 shares = previewDeposit(assets);
        _deposit(_msgSender(), receiver, assets, shares);

        return shares;
    }

    /** @dev See {IERC4626-mint}.
     *
     * As opposed to {deposit}, minting is allowed even if the vault is in a state where the price of a share is zero.
     * In this case, the shares will be minted without requiring any assets to be deposited.
     */
    function mint(uint256 shares, address receiver) public virtual override returns (uint256) {
        require(shares <= maxMint(receiver), "ERC4626: mint more than max");

        uint256 assets = previewMint(shares);
        _deposit(_msgSender(), receiver, assets, shares);

        return assets;
    }

    /** @dev See {IERC4626-withdraw}. */
    function withdraw(uint256 assets, address receiver, address owner) public virtual override returns (uint256) {
        require(assets <= maxWithdraw(owner), "ERC4626: withdraw more than max");

        uint256 shares = previewWithdraw(assets);
        _withdraw(_msgSender(), receiver, owner, assets, shares);

        return shares;
    }

    /** @dev See {IERC4626-redeem}. */
    function redeem(uint256 shares, address receiver, address owner) public virtual override returns (uint256) {
        require(shares <= maxRedeem(owner), "ERC4626: redeem more than max");

        uint256 assets = previewRedeem(shares);
        _withdraw(_msgSender(), receiver, owner, assets, shares);

        return assets;
    }

    /**
     * @dev Internal conversion function (from assets to shares) with support for rounding direction.
     */
    function _convertToShares(uint256 assets, Math.Rounding rounding) internal view virtual returns (uint256) {
        return assets.mulDiv(totalSupply() + 10 ** _decimalsOffset(), totalAssets() + 1, rounding);
    }

    /**
     * @dev Internal conversion function (from shares to assets) with support for rounding direction.
     */
    function _convertToAssets(uint256 shares, Math.Rounding rounding) internal view virtual returns (uint256) {
        return shares.mulDiv(totalAssets() + 1, totalSupply() + 10 ** _decimalsOffset(), rounding);
    }

    /**
     * @dev Deposit/mint common workflow.
     */
    function _deposit(address caller, address receiver, uint256 assets, uint256 shares) internal virtual {
        // If _asset is ERC777, `transferFrom` can trigger a reentrancy BEFORE the transfer happens through the
        // `tokensToSend` hook. On the other hand, the `tokenReceived` hook, that is triggered after the transfer,
        // calls the vault, which is assumed not malicious.
        //
        // Conclusion: we need to do the transfer before we mint so that any reentrancy would happen before the
        // assets are transferred and before the shares are minted, which is a valid state.
        // slither-disable-next-line reentrancy-no-eth
        SafeERC20.safeTransferFrom(_asset, caller, address(this), assets);
        _mint(receiver, shares);

        emit Deposit(caller, receiver, assets, shares);
    }

    /**
     * @dev Withdraw/redeem common workflow.
     */
    function _withdraw(
        address caller,
        address receiver,
        address owner,
        uint256 assets,
        uint256 shares
    ) internal virtual {
        if (caller != owner) {
            _spendAllowance(owner, caller, shares);
        }

        // If _asset is ERC777, `transfer` can trigger a reentrancy AFTER the transfer happens through the
        // `tokensReceived` hook. On the other hand, the `tokensToSend` hook, that is triggered before the transfer,
        // calls the vault, which is assumed not malicious.
        //
        // Conclusion: we need to do the transfer after the burn so that any reentrancy would happen after the
        // shares are burned and after the assets are transferred, which is a valid state.
        _burn(owner, shares);
        SafeERC20.safeTransfer(_asset, receiver, assets);

        emit Withdraw(caller, receiver, owner, assets, shares);
    }

    function _decimalsOffset() internal view virtual returns (uint8) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
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 v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @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 v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` 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 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../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 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.encodeWithSelector(token.transfer.selector, 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.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 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);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @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.encodeWithSelector(token.approve.selector, spender, value);

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

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @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.isContract(address(token));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) 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(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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 v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;

import "@openzeppelin/contracts/interfaces/IERC20.sol";
import "@openzeppelin/contracts/interfaces/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./TransfererBase.sol";

contract Transferer is TransfererBase {
    using SafeERC20 for IERC20;

    function onERC721Received(
        address,
        address,
        uint256,
        bytes calldata
    ) public pure returns (bytes4) {
        return IERC721Receiver.onERC721Received.selector;
    }

    function unsafeApproveERC20Token(
        address _erc20TokenAddress,
        address _to,
        uint256 _value
    ) internal {
        IERC20(_erc20TokenAddress).approve(_to, 0);
        IERC20(_erc20TokenAddress).approve(_to, _value);
    }

    function getERC20Allowance(
        address _erc20TokenAddress,
        address owner,
        address spender
    ) internal view returns (uint256) {
        IERC20 outToken = IERC20(_erc20TokenAddress);
        return outToken.allowance(owner, spender);
    }

    function approveERC721Token(
        address _erc20TokenAddress,
        address _to,
        uint256 _tokenId
    ) internal {
        IERC721(_erc20TokenAddress).approve(_to, _tokenId);
    }

    function approveToken(
        address _erc20TokenAddress,
        address _to,
        uint256 _tokenId,
        uint256 _value
    ) internal {
        if (_tokenId == 0) {
            unsafeApproveERC20Token(_erc20TokenAddress, _to, _value);
        } else {
            approveERC721Token(_erc20TokenAddress, _to, _tokenId);
        }
    }

    function transferERC20TokenFrom(
        address _erc20TokenAddress,
        address _from,
        address _to,
        uint256 _value
    ) internal {
        IERC20(_erc20TokenAddress).safeTransferFrom(_from, _to, _value);
    }

    function transferNftFrom(
        address _erc20TokenAddress,
        address _from,
        address _to,
        uint256 _tokenId
    ) internal {
        IERC721(_erc20TokenAddress).safeTransferFrom(_from, _to, _tokenId);
    }

    function transferERC20TokenOrETH(
        address _erc20TokenAddress,
        address _to,
        uint256 _value
    ) internal {
        if (_erc20TokenAddress == address(0)) {
            transferETH(_to, _value);
        } else {
            transferERC20Token(_erc20TokenAddress, _to, _value);
        }
    }

    function transferToken(
        address _erc20TokenAddress,
        address _to,
        uint256 _value,
        uint256 _tokenId
    ) internal {
        if (_tokenId == 0) {
            transferERC20TokenOrETH(_erc20TokenAddress, _to, _value);
        } else {
            transferNftFrom(_erc20TokenAddress, address(this), _to, _tokenId);
        }
    }

    function multiTransfer(
        address[] memory erc20TokenAddresses,
        address _to,
        uint256[] memory amounts
    ) internal returns (bool) {
        for (uint64 i = 0; i < erc20TokenAddresses.length; i++) {
            if (amounts[i] > 0)
                transferERC20TokenOrETH(
                    erc20TokenAddresses[i],
                    _to,
                    amounts[i]
                );
        }
        return true;
    }

    function transferERC20TokenFromOrCheckETH(
        address _contractAddress,
        address _from,
        address _to,
        uint256 _value
    ) internal {
        if (_contractAddress == address(0)) {
            require(
                msg.value == _value,
                "msg.value doesn't match needed amount"
            );
            if (_to != address(this)) {
                transferETH(_to, _value);
            }
        } else {
            transferERC20TokenFrom(_contractAddress, _from, _to, _value);
        }
    }

    function transferTokenFrom(
        address _erc20TokenAddress,
        address _from,
        address _to,
        uint256 _value,
        uint256 _tokenId
    ) internal {
        if (_tokenId == 0) {
            transferERC20TokenFromOrCheckETH(
                _erc20TokenAddress,
                _from,
                _to,
                _value
            );
        } else {
            transferNftFrom(_erc20TokenAddress, _from, _to, _tokenId);
        }
    }

    function multiTransferFrom(
        address[] memory erc20TokenAddresses,
        address _from,
        address _to,
        uint256[] memory amounts
    ) internal returns (bool) {
        for (uint64 i = 0; i < erc20TokenAddresses.length; i++) {
            if (amounts[i] > 0) {
                transferERC20TokenFromOrCheckETH(
                    erc20TokenAddresses[i],
                    _from,
                    _to,
                    amounts[i]
                );
            }
        }
        return true;
    }

    function getERC20OrETHBalance(
        address _erc20TokenAddress
    ) internal view returns (uint256) {
        if (_erc20TokenAddress == address(0)) {
            return address(this).balance;
        } else {
            IERC20 outToken = IERC20(_erc20TokenAddress);
            return outToken.balanceOf(address(this));
        }
    }

    function getNftBalance(
        address _erc20TokenAddress,
        uint256 tokenId
    ) internal view returns (uint256) {
        IERC721 outToken = IERC721(_erc20TokenAddress);
        try outToken.ownerOf(tokenId) returns (address owner) {
            if (owner == address(this)) return 1;
            else return 0;
        } catch {
            return 0;
        }
    }

    function getBalancesForArrayMemory(
        address[] memory erc20TokenAddresses
    ) internal view returns (uint256[] memory balances) {
        balances = new uint256[](erc20TokenAddresses.length);
        for (uint64 i; i < erc20TokenAddresses.length; i++) {
            balances[i] = getERC20OrETHBalance(erc20TokenAddresses[i]);
        }
    }

    function getBalancesForArrayMemory(
        address[] memory erc20TokenAddresses,
        uint256[] memory tokenIds
    ) internal view returns (uint256[] memory balances) {
        balances = new uint256[](erc20TokenAddresses.length);
        for (uint64 i; i < erc20TokenAddresses.length; i++) {
            if (tokenIds[i] == 0) {
                balances[i] = getERC20OrETHBalance(erc20TokenAddresses[i]);
            } else {
                balances[i] = getNftBalance(
                    erc20TokenAddresses[i],
                    tokenIds[i]
                );
            }
        }
    }

    function getBalancesForArray(
        address[] calldata erc20TokenAddresses
    ) internal view returns (uint256[] memory balances) {
        balances = new uint256[](erc20TokenAddresses.length);
        for (uint64 i; i < erc20TokenAddresses.length; i++) {
            balances[i] = getERC20OrETHBalance(erc20TokenAddresses[i]);
        }
    }

    function getBalancesForArray(
        address[] calldata erc20TokenAddresses,
        uint256[] calldata tokenIds
    ) internal view returns (uint256[] memory balances) {
        balances = new uint256[](erc20TokenAddresses.length);
        for (uint64 i; i < erc20TokenAddresses.length; i++) {
            if (tokenIds[i] == 0) {
                balances[i] = getERC20OrETHBalance(erc20TokenAddresses[i]);
            } else {
                balances[i] = getNftBalance(
                    erc20TokenAddresses[i],
                    tokenIds[i]
                );
            }
        }
    }

    function sendToRelay(
        address relay,
        uint256 actualAmount,
        address erc20TokenAddress
    ) internal {
        if (relay != address(0) && actualAmount > 0) {
            transferERC20TokenOrETH(
                erc20TokenAddress,
                relay,
                uint256(actualAmount)
            );
        }
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;

import "@openzeppelin/contracts/interfaces/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

contract TransfererBase {
    using SafeERC20 for IERC20;

    function transferETH(address _recepient, uint256 _value) internal {
        (bool success, ) = _recepient.call{value: _value}("");
        require(success, "Transfer Failed");
    }

    function transferERC20Token(
        address _erc20TokenAddress,
        address _to,
        uint256 _value
    ) internal {
        IERC20(_erc20TokenAddress).safeTransfer(_to, _value);
    }

    function approveERC20Token(
        address _erc20TokenAddress,
        address _to,
        uint256 _value
    ) internal {
        IERC20(_erc20TokenAddress).safeApprove(_to, 0);
        IERC20(_erc20TokenAddress).safeApprove(_to, _value);
    }

    function approveUnlimited(
        address _erc20TokenAddress,
        address _to
    ) internal {
        if (
            IERC20(_erc20TokenAddress).allowance(address(this), _to) <
            type(uint256).max / 2
        ) {
            IERC20(_erc20TokenAddress).safeApprove(_to, 0);
            IERC20(_erc20TokenAddress).safeApprove(_to, type(uint256).max);
        }
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"contract IERC20","name":"_baseToken","type":"address"},{"internalType":"address","name":"_hinkalAddress","type":"address"},{"internalType":"address","name":"_externalAction","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"MustBeExternalAction","type":"error"},{"inputs":[],"name":"NoShares","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":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"assets","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"Deposit","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":false,"internalType":"uint256","name":"assets","type":"uint256"}],"name":"RewardAdded","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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"assets","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"}],"name":"addReward","outputs":[],"stateMutability":"payable","type":"function"},{"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":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"asset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","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":"shares","type":"uint256"}],"name":"convertToAssets","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"}],"name":"convertToShares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"}],"name":"deposit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"externalAction","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"hinkalAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"maxDeposit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"maxMint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"maxRedeem","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"maxWithdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"}],"name":"previewDeposit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"name":"previewMint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"name":"previewRedeem","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"}],"name":"previewWithdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"redeem","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_externalAction","type":"address"}],"name":"setExternalAction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_hinkalAddress","type":"address"}],"name":"setHinkalAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalAssets","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"amount","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":"amount","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"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}]

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

-----Decoded View---------------
Arg [0] : name_ (string): Hinkal ETH
Arg [1] : symbol_ (string): hETH
Arg [2] : _baseToken (address): 0x0000000000000000000000000000000000000000
Arg [3] : _hinkalAddress (address): 0x2ea81946fF675d5Eb88192144ffc1418fA442E28
Arg [4] : _externalAction (address): 0x39f5459D15c69B8D21B879748748bfdb812dCfb1

-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [3] : 0000000000000000000000002ea81946ff675d5eb88192144ffc1418fa442e28
Arg [4] : 00000000000000000000000039f5459d15c69b8d21b879748748bfdb812dcfb1
Arg [5] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [6] : 48696e6b616c2045544800000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [8] : 6845544800000000000000000000000000000000000000000000000000000000