// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.30;

import {ERC20Base} from "src/assets/ERC20Base.sol";

import {Initializable} from "solady/utils/Initializable.sol";

contract ERC20Asset is Initializable, ERC20Base {

    constructor() {
        _disableInitializers();
    }

    function initialize(
        string memory name,
        string memory symbol,
        string memory contractURI,
        uint256 maxSupply,
        address owner
    ) external initializer {
        _initialize(name, symbol, contractURI, maxSupply, owner);
    }

}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Simple single owner authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract Ownable {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The caller is not authorized to call the function.
    error Unauthorized();

    /// @dev The `newOwner` cannot be the zero address.
    error NewOwnerIsZeroAddress();

    /// @dev The `pendingOwner` does not have a valid handover request.
    error NoHandoverRequest();

    /// @dev Cannot double-initialize.
    error AlreadyInitialized();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The ownership is transferred from `oldOwner` to `newOwner`.
    /// This event is intentionally kept the same as OpenZeppelin's Ownable to be
    /// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173),
    /// despite it not being as lightweight as a single argument event.
    event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);

    /// @dev An ownership handover to `pendingOwner` has been requested.
    event OwnershipHandoverRequested(address indexed pendingOwner);

    /// @dev The ownership handover to `pendingOwner` has been canceled.
    event OwnershipHandoverCanceled(address indexed pendingOwner);

    /// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`.
    uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE =
        0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0;

    /// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`.
    uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE =
        0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d;

    /// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`.
    uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE =
        0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The owner slot is given by:
    /// `bytes32(~uint256(uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))))`.
    /// It is intentionally chosen to be a high value
    /// to avoid collision with lower slots.
    /// The choice of manual storage layout is to enable compatibility
    /// with both regular and upgradeable contracts.
    bytes32 internal constant _OWNER_SLOT =
        0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff74873927;

    /// The ownership handover slot of `newOwner` is given by:
    /// ```
    ///     mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED))
    ///     let handoverSlot := keccak256(0x00, 0x20)
    /// ```
    /// It stores the expiry timestamp of the two-step ownership handover.
    uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     INTERNAL FUNCTIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Override to return true to make `_initializeOwner` prevent double-initialization.
    function _guardInitializeOwner() internal pure virtual returns (bool guard) {}

    /// @dev Initializes the owner directly without authorization guard.
    /// This function must be called upon initialization,
    /// regardless of whether the contract is upgradeable or not.
    /// This is to enable generalization to both regular and upgradeable contracts,
    /// and to save gas in case the initial owner is not the caller.
    /// For performance reasons, this function will not check if there
    /// is an existing owner.
    function _initializeOwner(address newOwner) internal virtual {
        if (_guardInitializeOwner()) {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                if sload(ownerSlot) {
                    mstore(0x00, 0x0dc149f0) // `AlreadyInitialized()`.
                    revert(0x1c, 0x04)
                }
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Store the new value.
                sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
            }
        } else {
            /// @solidity memory-safe-assembly
            assembly {
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Store the new value.
                sstore(_OWNER_SLOT, newOwner)
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
            }
        }
    }

    /// @dev Sets the owner directly without authorization guard.
    function _setOwner(address newOwner) internal virtual {
        if (_guardInitializeOwner()) {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
                // Store the new value.
                sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
            }
        } else {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
                // Store the new value.
                sstore(ownerSlot, newOwner)
            }
        }
    }

    /// @dev Throws if the sender is not the owner.
    function _checkOwner() internal view virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // If the caller is not the stored owner, revert.
            if iszero(eq(caller(), sload(_OWNER_SLOT))) {
                mstore(0x00, 0x82b42900) // `Unauthorized()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Returns how long a two-step ownership handover is valid for in seconds.
    /// Override to return a different value if needed.
    /// Made internal to conserve bytecode. Wrap it in a public function if needed.
    function _ownershipHandoverValidFor() internal view virtual returns (uint64) {
        return 48 * 3600;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  PUBLIC UPDATE FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Allows the owner to transfer the ownership to `newOwner`.
    function transferOwnership(address newOwner) public payable virtual onlyOwner {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(shl(96, newOwner)) {
                mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`.
                revert(0x1c, 0x04)
            }
        }
        _setOwner(newOwner);
    }

    /// @dev Allows the owner to renounce their ownership.
    function renounceOwnership() public payable virtual onlyOwner {
        _setOwner(address(0));
    }

    /// @dev Request a two-step ownership handover to the caller.
    /// The request will automatically expire in 48 hours (172800 seconds) by default.
    function requestOwnershipHandover() public payable virtual {
        unchecked {
            uint256 expires = block.timestamp + _ownershipHandoverValidFor();
            /// @solidity memory-safe-assembly
            assembly {
                // Compute and set the handover slot to `expires`.
                mstore(0x0c, _HANDOVER_SLOT_SEED)
                mstore(0x00, caller())
                sstore(keccak256(0x0c, 0x20), expires)
                // Emit the {OwnershipHandoverRequested} event.
                log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller())
            }
        }
    }

    /// @dev Cancels the two-step ownership handover to the caller, if any.
    function cancelOwnershipHandover() public payable virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute and set the handover slot to 0.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, caller())
            sstore(keccak256(0x0c, 0x20), 0)
            // Emit the {OwnershipHandoverCanceled} event.
            log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller())
        }
    }

    /// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`.
    /// Reverts if there is no existing ownership handover requested by `pendingOwner`.
    function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute and set the handover slot to 0.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, pendingOwner)
            let handoverSlot := keccak256(0x0c, 0x20)
            // If the handover does not exist, or has expired.
            if gt(timestamp(), sload(handoverSlot)) {
                mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`.
                revert(0x1c, 0x04)
            }
            // Set the handover slot to 0.
            sstore(handoverSlot, 0)
        }
        _setOwner(pendingOwner);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   PUBLIC READ FUNCTIONS                    */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the owner of the contract.
    function owner() public view virtual returns (address result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := sload(_OWNER_SLOT)
        }
    }

    /// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`.
    function ownershipHandoverExpiresAt(address pendingOwner)
        public
        view
        virtual
        returns (uint256 result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the handover slot.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, pendingOwner)
            // Load the handover slot.
            result := sload(keccak256(0x0c, 0x20))
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         MODIFIERS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Marks a function as only callable by the owner.
    modifier onlyOwner() virtual {
        _checkOwner();
        _;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Simple ERC20 + EIP-2612 implementation.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol)
///
/// @dev Note:
/// - The ERC20 standard allows minting and transferring to and from the zero address,
///   minting and transferring zero tokens, as well as self-approvals.
///   For performance, this implementation WILL NOT revert for such actions.
///   Please add any checks with overrides if desired.
/// - The `permit` function uses the ecrecover precompile (0x1).
///
/// If you are overriding:
/// - NEVER violate the ERC20 invariant:
///   the total sum of all balances must be equal to `totalSupply()`.
/// - Check that the overridden function is actually used in the function you want to
///   change the behavior of. Much of the code has been manually inlined for performance.
abstract contract ERC20 {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The total supply has overflowed.
    error TotalSupplyOverflow();

    /// @dev The allowance has overflowed.
    error AllowanceOverflow();

    /// @dev The allowance has underflowed.
    error AllowanceUnderflow();

    /// @dev Insufficient balance.
    error InsufficientBalance();

    /// @dev Insufficient allowance.
    error InsufficientAllowance();

    /// @dev The permit is invalid.
    error InvalidPermit();

    /// @dev The permit has expired.
    error PermitExpired();

    /// @dev The allowance of Permit2 is fixed at infinity.
    error Permit2AllowanceIsFixedAtInfinity();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Emitted when `amount` tokens is transferred from `from` to `to`.
    event Transfer(address indexed from, address indexed to, uint256 amount);

    /// @dev Emitted when `amount` tokens is approved by `owner` to be used by `spender`.
    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /// @dev `keccak256(bytes("Transfer(address,address,uint256)"))`.
    uint256 private constant _TRANSFER_EVENT_SIGNATURE =
        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;

    /// @dev `keccak256(bytes("Approval(address,address,uint256)"))`.
    uint256 private constant _APPROVAL_EVENT_SIGNATURE =
        0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The storage slot for the total supply.
    uint256 private constant _TOTAL_SUPPLY_SLOT = 0x05345cdf77eb68f44c;

    /// @dev The balance slot of `owner` is given by:
    /// ```
    ///     mstore(0x0c, _BALANCE_SLOT_SEED)
    ///     mstore(0x00, owner)
    ///     let balanceSlot := keccak256(0x0c, 0x20)
    /// ```
    uint256 private constant _BALANCE_SLOT_SEED = 0x87a211a2;

    /// @dev The allowance slot of (`owner`, `spender`) is given by:
    /// ```
    ///     mstore(0x20, spender)
    ///     mstore(0x0c, _ALLOWANCE_SLOT_SEED)
    ///     mstore(0x00, owner)
    ///     let allowanceSlot := keccak256(0x0c, 0x34)
    /// ```
    uint256 private constant _ALLOWANCE_SLOT_SEED = 0x7f5e9f20;

    /// @dev The nonce slot of `owner` is given by:
    /// ```
    ///     mstore(0x0c, _NONCES_SLOT_SEED)
    ///     mstore(0x00, owner)
    ///     let nonceSlot := keccak256(0x0c, 0x20)
    /// ```
    uint256 private constant _NONCES_SLOT_SEED = 0x38377508;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         CONSTANTS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev `(_NONCES_SLOT_SEED << 16) | 0x1901`.
    uint256 private constant _NONCES_SLOT_SEED_WITH_SIGNATURE_PREFIX = 0x383775081901;

    /// @dev `keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")`.
    bytes32 private constant _DOMAIN_TYPEHASH =
        0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f;

    /// @dev `keccak256("1")`.
    /// If you need to use a different version, override `_versionHash`.
    bytes32 private constant _DEFAULT_VERSION_HASH =
        0xc89efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6;

    /// @dev `keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)")`.
    bytes32 private constant _PERMIT_TYPEHASH =
        0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;

    /// @dev The canonical Permit2 address.
    /// For signature-based allowance granting for single transaction ERC20 `transferFrom`.
    /// Enabled by default. To disable, override `_givePermit2InfiniteAllowance()`.
    /// [Github](https://github.com/Uniswap/permit2)
    /// [Etherscan](https://etherscan.io/address/0x000000000022D473030F116dDEE9F6B43aC78BA3)
    address internal constant _PERMIT2 = 0x000000000022D473030F116dDEE9F6B43aC78BA3;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       ERC20 METADATA                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the name of the token.
    function name() public view virtual returns (string memory);

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

    /// @dev Returns the decimals places of the token.
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           ERC20                            */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the amount of tokens in existence.
    function totalSupply() public view virtual returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := sload(_TOTAL_SUPPLY_SLOT)
        }
    }

    /// @dev Returns the amount of tokens owned by `owner`.
    function balanceOf(address owner) public view virtual returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, owner)
            result := sload(keccak256(0x0c, 0x20))
        }
    }

    /// @dev Returns the amount of tokens that `spender` can spend on behalf of `owner`.
    function allowance(address owner, address spender)
        public
        view
        virtual
        returns (uint256 result)
    {
        if (_givePermit2InfiniteAllowance()) {
            if (spender == _PERMIT2) return type(uint256).max;
        }
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x20, spender)
            mstore(0x0c, _ALLOWANCE_SLOT_SEED)
            mstore(0x00, owner)
            result := sload(keccak256(0x0c, 0x34))
        }
    }

    /// @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
    ///
    /// Emits a {Approval} event.
    function approve(address spender, uint256 amount) public virtual returns (bool) {
        if (_givePermit2InfiniteAllowance()) {
            /// @solidity memory-safe-assembly
            assembly {
                // If `spender == _PERMIT2 && amount != type(uint256).max`.
                if iszero(or(xor(shr(96, shl(96, spender)), _PERMIT2), iszero(not(amount)))) {
                    mstore(0x00, 0x3f68539a) // `Permit2AllowanceIsFixedAtInfinity()`.
                    revert(0x1c, 0x04)
                }
            }
        }
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the allowance slot and store the amount.
            mstore(0x20, spender)
            mstore(0x0c, _ALLOWANCE_SLOT_SEED)
            mstore(0x00, caller())
            sstore(keccak256(0x0c, 0x34), amount)
            // Emit the {Approval} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _APPROVAL_EVENT_SIGNATURE, caller(), shr(96, mload(0x2c)))
        }
        return true;
    }

    /// @dev Transfer `amount` tokens from the caller to `to`.
    ///
    /// Requirements:
    /// - `from` must at least have `amount`.
    ///
    /// Emits a {Transfer} event.
    function transfer(address to, uint256 amount) public virtual returns (bool) {
        _beforeTokenTransfer(msg.sender, to, amount);
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the balance slot and load its value.
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, caller())
            let fromBalanceSlot := keccak256(0x0c, 0x20)
            let fromBalance := sload(fromBalanceSlot)
            // Revert if insufficient balance.
            if gt(amount, fromBalance) {
                mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                revert(0x1c, 0x04)
            }
            // Subtract and store the updated balance.
            sstore(fromBalanceSlot, sub(fromBalance, amount))
            // Compute the balance slot of `to`.
            mstore(0x00, to)
            let toBalanceSlot := keccak256(0x0c, 0x20)
            // Add and store the updated balance of `to`.
            // Will not overflow because the sum of all user balances
            // cannot exceed the maximum uint256 value.
            sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
            // Emit the {Transfer} event.
            mstore(0x20, amount)
            log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, caller(), shr(96, mload(0x0c)))
        }
        _afterTokenTransfer(msg.sender, to, amount);
        return true;
    }

    /// @dev Transfers `amount` tokens from `from` to `to`.
    ///
    /// Note: Does not update the allowance if it is the maximum uint256 value.
    ///
    /// Requirements:
    /// - `from` must at least have `amount`.
    /// - The caller must have at least `amount` of allowance to transfer the tokens of `from`.
    ///
    /// Emits a {Transfer} event.
    function transferFrom(address from, address to, uint256 amount) public virtual returns (bool) {
        _beforeTokenTransfer(from, to, amount);
        // Code duplication is for zero-cost abstraction if possible.
        if (_givePermit2InfiniteAllowance()) {
            /// @solidity memory-safe-assembly
            assembly {
                let from_ := shl(96, from)
                if iszero(eq(caller(), _PERMIT2)) {
                    // Compute the allowance slot and load its value.
                    mstore(0x20, caller())
                    mstore(0x0c, or(from_, _ALLOWANCE_SLOT_SEED))
                    let allowanceSlot := keccak256(0x0c, 0x34)
                    let allowance_ := sload(allowanceSlot)
                    // If the allowance is not the maximum uint256 value.
                    if not(allowance_) {
                        // Revert if the amount to be transferred exceeds the allowance.
                        if gt(amount, allowance_) {
                            mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
                            revert(0x1c, 0x04)
                        }
                        // Subtract and store the updated allowance.
                        sstore(allowanceSlot, sub(allowance_, amount))
                    }
                }
                // Compute the balance slot and load its value.
                mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
                let fromBalanceSlot := keccak256(0x0c, 0x20)
                let fromBalance := sload(fromBalanceSlot)
                // Revert if insufficient balance.
                if gt(amount, fromBalance) {
                    mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                    revert(0x1c, 0x04)
                }
                // Subtract and store the updated balance.
                sstore(fromBalanceSlot, sub(fromBalance, amount))
                // Compute the balance slot of `to`.
                mstore(0x00, to)
                let toBalanceSlot := keccak256(0x0c, 0x20)
                // Add and store the updated balance of `to`.
                // Will not overflow because the sum of all user balances
                // cannot exceed the maximum uint256 value.
                sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
                // Emit the {Transfer} event.
                mstore(0x20, amount)
                log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
            }
        } else {
            /// @solidity memory-safe-assembly
            assembly {
                let from_ := shl(96, from)
                // Compute the allowance slot and load its value.
                mstore(0x20, caller())
                mstore(0x0c, or(from_, _ALLOWANCE_SLOT_SEED))
                let allowanceSlot := keccak256(0x0c, 0x34)
                let allowance_ := sload(allowanceSlot)
                // If the allowance is not the maximum uint256 value.
                if not(allowance_) {
                    // Revert if the amount to be transferred exceeds the allowance.
                    if gt(amount, allowance_) {
                        mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
                        revert(0x1c, 0x04)
                    }
                    // Subtract and store the updated allowance.
                    sstore(allowanceSlot, sub(allowance_, amount))
                }
                // Compute the balance slot and load its value.
                mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
                let fromBalanceSlot := keccak256(0x0c, 0x20)
                let fromBalance := sload(fromBalanceSlot)
                // Revert if insufficient balance.
                if gt(amount, fromBalance) {
                    mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                    revert(0x1c, 0x04)
                }
                // Subtract and store the updated balance.
                sstore(fromBalanceSlot, sub(fromBalance, amount))
                // Compute the balance slot of `to`.
                mstore(0x00, to)
                let toBalanceSlot := keccak256(0x0c, 0x20)
                // Add and store the updated balance of `to`.
                // Will not overflow because the sum of all user balances
                // cannot exceed the maximum uint256 value.
                sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
                // Emit the {Transfer} event.
                mstore(0x20, amount)
                log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
            }
        }
        _afterTokenTransfer(from, to, amount);
        return true;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          EIP-2612                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev For more performance, override to return the constant value
    /// of `keccak256(bytes(name()))` if `name()` will never change.
    function _constantNameHash() internal view virtual returns (bytes32 result) {}

    /// @dev If you need a different value, override this function.
    function _versionHash() internal view virtual returns (bytes32 result) {
        result = _DEFAULT_VERSION_HASH;
    }

    /// @dev For inheriting contracts to increment the nonce.
    function _incrementNonce(address owner) internal virtual {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x0c, _NONCES_SLOT_SEED)
            mstore(0x00, owner)
            let nonceSlot := keccak256(0x0c, 0x20)
            sstore(nonceSlot, add(1, sload(nonceSlot)))
        }
    }

    /// @dev Returns the current nonce for `owner`.
    /// This value is used to compute the signature for EIP-2612 permit.
    function nonces(address owner) public view virtual returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the nonce slot and load its value.
            mstore(0x0c, _NONCES_SLOT_SEED)
            mstore(0x00, owner)
            result := sload(keccak256(0x0c, 0x20))
        }
    }

    /// @dev Sets `value` as the allowance of `spender` over the tokens of `owner`,
    /// authorized by a signed approval by `owner`.
    ///
    /// Emits a {Approval} event.
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        if (_givePermit2InfiniteAllowance()) {
            /// @solidity memory-safe-assembly
            assembly {
                // If `spender == _PERMIT2 && value != type(uint256).max`.
                if iszero(or(xor(shr(96, shl(96, spender)), _PERMIT2), iszero(not(value)))) {
                    mstore(0x00, 0x3f68539a) // `Permit2AllowanceIsFixedAtInfinity()`.
                    revert(0x1c, 0x04)
                }
            }
        }
        bytes32 nameHash = _constantNameHash();
        //  We simply calculate it on-the-fly to allow for cases where the `name` may change.
        if (nameHash == bytes32(0)) nameHash = keccak256(bytes(name()));
        bytes32 versionHash = _versionHash();
        /// @solidity memory-safe-assembly
        assembly {
            // Revert if the block timestamp is greater than `deadline`.
            if gt(timestamp(), deadline) {
                mstore(0x00, 0x1a15a3cc) // `PermitExpired()`.
                revert(0x1c, 0x04)
            }
            let m := mload(0x40) // Grab the free memory pointer.
            // Clean the upper 96 bits.
            owner := shr(96, shl(96, owner))
            spender := shr(96, shl(96, spender))
            // Compute the nonce slot and load its value.
            mstore(0x0e, _NONCES_SLOT_SEED_WITH_SIGNATURE_PREFIX)
            mstore(0x00, owner)
            let nonceSlot := keccak256(0x0c, 0x20)
            let nonceValue := sload(nonceSlot)
            // Prepare the domain separator.
            mstore(m, _DOMAIN_TYPEHASH)
            mstore(add(m, 0x20), nameHash)
            mstore(add(m, 0x40), versionHash)
            mstore(add(m, 0x60), chainid())
            mstore(add(m, 0x80), address())
            mstore(0x2e, keccak256(m, 0xa0))
            // Prepare the struct hash.
            mstore(m, _PERMIT_TYPEHASH)
            mstore(add(m, 0x20), owner)
            mstore(add(m, 0x40), spender)
            mstore(add(m, 0x60), value)
            mstore(add(m, 0x80), nonceValue)
            mstore(add(m, 0xa0), deadline)
            mstore(0x4e, keccak256(m, 0xc0))
            // Prepare the ecrecover calldata.
            mstore(0x00, keccak256(0x2c, 0x42))
            mstore(0x20, and(0xff, v))
            mstore(0x40, r)
            mstore(0x60, s)
            let t := staticcall(gas(), 1, 0x00, 0x80, 0x20, 0x20)
            // If the ecrecover fails, the returndatasize will be 0x00,
            // `owner` will be checked if it equals the hash at 0x00,
            // which evaluates to false (i.e. 0), and we will revert.
            // If the ecrecover succeeds, the returndatasize will be 0x20,
            // `owner` will be compared against the returned address at 0x20.
            if iszero(eq(mload(returndatasize()), owner)) {
                mstore(0x00, 0xddafbaef) // `InvalidPermit()`.
                revert(0x1c, 0x04)
            }
            // Increment and store the updated nonce.
            sstore(nonceSlot, add(nonceValue, t)) // `t` is 1 if ecrecover succeeds.
            // Compute the allowance slot and store the value.
            // The `owner` is already at slot 0x20.
            mstore(0x40, or(shl(160, _ALLOWANCE_SLOT_SEED), spender))
            sstore(keccak256(0x2c, 0x34), value)
            // Emit the {Approval} event.
            log3(add(m, 0x60), 0x20, _APPROVAL_EVENT_SIGNATURE, owner, spender)
            mstore(0x40, m) // Restore the free memory pointer.
            mstore(0x60, 0) // Restore the zero pointer.
        }
    }

    /// @dev Returns the EIP-712 domain separator for the EIP-2612 permit.
    function DOMAIN_SEPARATOR() public view virtual returns (bytes32 result) {
        bytes32 nameHash = _constantNameHash();
        //  We simply calculate it on-the-fly to allow for cases where the `name` may change.
        if (nameHash == bytes32(0)) nameHash = keccak256(bytes(name()));
        bytes32 versionHash = _versionHash();
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Grab the free memory pointer.
            mstore(m, _DOMAIN_TYPEHASH)
            mstore(add(m, 0x20), nameHash)
            mstore(add(m, 0x40), versionHash)
            mstore(add(m, 0x60), chainid())
            mstore(add(m, 0x80), address())
            result := keccak256(m, 0xa0)
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  INTERNAL MINT FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Mints `amount` tokens to `to`, increasing the total supply.
    ///
    /// Emits a {Transfer} event.
    function _mint(address to, uint256 amount) internal virtual {
        _beforeTokenTransfer(address(0), to, amount);
        /// @solidity memory-safe-assembly
        assembly {
            let totalSupplyBefore := sload(_TOTAL_SUPPLY_SLOT)
            let totalSupplyAfter := add(totalSupplyBefore, amount)
            // Revert if the total supply overflows.
            if lt(totalSupplyAfter, totalSupplyBefore) {
                mstore(0x00, 0xe5cfe957) // `TotalSupplyOverflow()`.
                revert(0x1c, 0x04)
            }
            // Store the updated total supply.
            sstore(_TOTAL_SUPPLY_SLOT, totalSupplyAfter)
            // Compute the balance slot and load its value.
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, to)
            let toBalanceSlot := keccak256(0x0c, 0x20)
            // Add and store the updated balance.
            sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
            // Emit the {Transfer} event.
            mstore(0x20, amount)
            log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, mload(0x0c)))
        }
        _afterTokenTransfer(address(0), to, amount);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  INTERNAL BURN FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Burns `amount` tokens from `from`, reducing the total supply.
    ///
    /// Emits a {Transfer} event.
    function _burn(address from, uint256 amount) internal virtual {
        _beforeTokenTransfer(from, address(0), amount);
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the balance slot and load its value.
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, from)
            let fromBalanceSlot := keccak256(0x0c, 0x20)
            let fromBalance := sload(fromBalanceSlot)
            // Revert if insufficient balance.
            if gt(amount, fromBalance) {
                mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                revert(0x1c, 0x04)
            }
            // Subtract and store the updated balance.
            sstore(fromBalanceSlot, sub(fromBalance, amount))
            // Subtract and store the updated total supply.
            sstore(_TOTAL_SUPPLY_SLOT, sub(sload(_TOTAL_SUPPLY_SLOT), amount))
            // Emit the {Transfer} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, shl(96, from)), 0)
        }
        _afterTokenTransfer(from, address(0), amount);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                INTERNAL TRANSFER FUNCTIONS                 */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Moves `amount` of tokens from `from` to `to`.
    function _transfer(address from, address to, uint256 amount) internal virtual {
        _beforeTokenTransfer(from, to, amount);
        /// @solidity memory-safe-assembly
        assembly {
            let from_ := shl(96, from)
            // Compute the balance slot and load its value.
            mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
            let fromBalanceSlot := keccak256(0x0c, 0x20)
            let fromBalance := sload(fromBalanceSlot)
            // Revert if insufficient balance.
            if gt(amount, fromBalance) {
                mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                revert(0x1c, 0x04)
            }
            // Subtract and store the updated balance.
            sstore(fromBalanceSlot, sub(fromBalance, amount))
            // Compute the balance slot of `to`.
            mstore(0x00, to)
            let toBalanceSlot := keccak256(0x0c, 0x20)
            // Add and store the updated balance of `to`.
            // Will not overflow because the sum of all user balances
            // cannot exceed the maximum uint256 value.
            sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
            // Emit the {Transfer} event.
            mstore(0x20, amount)
            log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
        }
        _afterTokenTransfer(from, to, amount);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                INTERNAL ALLOWANCE FUNCTIONS                */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Updates the allowance of `owner` for `spender` based on spent `amount`.
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        if (_givePermit2InfiniteAllowance()) {
            if (spender == _PERMIT2) return; // Do nothing, as allowance is infinite.
        }
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the allowance slot and load its value.
            mstore(0x20, spender)
            mstore(0x0c, _ALLOWANCE_SLOT_SEED)
            mstore(0x00, owner)
            let allowanceSlot := keccak256(0x0c, 0x34)
            let allowance_ := sload(allowanceSlot)
            // If the allowance is not the maximum uint256 value.
            if not(allowance_) {
                // Revert if the amount to be transferred exceeds the allowance.
                if gt(amount, allowance_) {
                    mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
                    revert(0x1c, 0x04)
                }
                // Subtract and store the updated allowance.
                sstore(allowanceSlot, sub(allowance_, amount))
            }
        }
    }

    /// @dev Sets `amount` as the allowance of `spender` over the tokens of `owner`.
    ///
    /// Emits a {Approval} event.
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        if (_givePermit2InfiniteAllowance()) {
            /// @solidity memory-safe-assembly
            assembly {
                // If `spender == _PERMIT2 && amount != type(uint256).max`.
                if iszero(or(xor(shr(96, shl(96, spender)), _PERMIT2), iszero(not(amount)))) {
                    mstore(0x00, 0x3f68539a) // `Permit2AllowanceIsFixedAtInfinity()`.
                    revert(0x1c, 0x04)
                }
            }
        }
        /// @solidity memory-safe-assembly
        assembly {
            let owner_ := shl(96, owner)
            // Compute the allowance slot and store the amount.
            mstore(0x20, spender)
            mstore(0x0c, or(owner_, _ALLOWANCE_SLOT_SEED))
            sstore(keccak256(0x0c, 0x34), amount)
            // Emit the {Approval} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _APPROVAL_EVENT_SIGNATURE, shr(96, owner_), shr(96, mload(0x2c)))
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     HOOKS TO OVERRIDE                      */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Hook that is called before any transfer of tokens.
    /// This includes minting and burning.
    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.
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          PERMIT2                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns whether to fix the Permit2 contract's allowance at infinity.
    ///
    /// This value should be kept constant after contract initialization,
    /// or else the actual allowance values may not match with the {Approval} events.
    /// For best performance, return a compile-time constant for zero-cost abstraction.
    function _givePermit2InfiniteAllowance() internal view virtual returns (bool) {
        return true;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Initializable mixin for the upgradeable contracts.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/Initializable.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/proxy/utils/Initializable.sol)
abstract contract Initializable {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The contract is already initialized.
    error InvalidInitialization();

    /// @dev The contract is not initializing.
    error NotInitializing();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Triggered when the contract has been initialized.
    event Initialized(uint64 version);

    /// @dev `keccak256(bytes("Initialized(uint64)"))`.
    bytes32 private constant _INITIALIZED_EVENT_SIGNATURE =
        0xc7f505b2f371ae2175ee4913f4499e1f2633a7b5936321eed1cdaeb6115181d2;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The default initializable slot is given by:
    /// `bytes32(~uint256(uint32(bytes4(keccak256("_INITIALIZABLE_SLOT")))))`.
    ///
    /// Bits Layout:
    /// - [0]     `initializing`
    /// - [1..64] `initializedVersion`
    bytes32 private constant _INITIALIZABLE_SLOT =
        0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffbf601132;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                        CONSTRUCTOR                         */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    constructor() {
        // Construction time check to ensure that `_initializableSlot()` is not
        // overridden to zero. Will be optimized away if there is no revert.
        require(_initializableSlot() != bytes32(0));
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         OPERATIONS                         */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Override to return a non-zero custom storage slot if required.
    function _initializableSlot() internal pure virtual returns (bytes32) {
        return _INITIALIZABLE_SLOT;
    }

    /// @dev Guards an initializer function so that it can be invoked at most once.
    ///
    /// You can guard a function with `onlyInitializing` such that it can be called
    /// through a function guarded with `initializer`.
    ///
    /// This is similar to `reinitializer(1)`, except that in the context of a constructor,
    /// an `initializer` guarded function can be invoked multiple times.
    /// This can be useful during testing and is not expected to be used in production.
    ///
    /// Emits an {Initialized} event.
    modifier initializer() virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            let i := sload(s)
            // Set `initializing` to 1, `initializedVersion` to 1.
            sstore(s, 3)
            // If `!(initializing == 0 && initializedVersion == 0)`.
            if i {
                // If `!(address(this).code.length == 0 && initializedVersion == 1)`.
                if iszero(lt(extcodesize(address()), eq(shr(1, i), 1))) {
                    mstore(0x00, 0xf92ee8a9) // `InvalidInitialization()`.
                    revert(0x1c, 0x04)
                }
                s := shl(shl(255, i), s) // Skip initializing if `initializing == 1`.
            }
        }
        _;
        /// @solidity memory-safe-assembly
        assembly {
            if s {
                // Set `initializing` to 0, `initializedVersion` to 1.
                sstore(s, 2)
                // Emit the {Initialized} event.
                mstore(0x20, 1)
                log1(0x20, 0x20, _INITIALIZED_EVENT_SIGNATURE)
            }
        }
    }

    /// @dev Guards a reinitializer function so that it can be invoked at most once.
    ///
    /// You can guard a function with `onlyInitializing` such that it can be called
    /// through a function guarded with `reinitializer`.
    ///
    /// Emits an {Initialized} event.
    modifier reinitializer(uint64 version) virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            // Clean upper bits, and shift left by 1 to make space for the initializing bit.
            version := shl(1, and(version, 0xffffffffffffffff))
            let i := sload(s)
            // If `initializing == 1 || initializedVersion >= version`.
            if iszero(lt(and(i, 1), lt(i, version))) {
                mstore(0x00, 0xf92ee8a9) // `InvalidInitialization()`.
                revert(0x1c, 0x04)
            }
            // Set `initializing` to 1, `initializedVersion` to `version`.
            sstore(s, or(1, version))
        }
        _;
        /// @solidity memory-safe-assembly
        assembly {
            // Set `initializing` to 0, `initializedVersion` to `version`.
            sstore(s, version)
            // Emit the {Initialized} event.
            mstore(0x20, shr(1, version))
            log1(0x20, 0x20, _INITIALIZED_EVENT_SIGNATURE)
        }
    }

    /// @dev Guards a function such that it can only be called in the scope
    /// of a function guarded with `initializer` or `reinitializer`.
    modifier onlyInitializing() virtual {
        _checkInitializing();
        _;
    }

    /// @dev Reverts if the contract is not initializing.
    function _checkInitializing() internal view virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(and(1, sload(s))) {
                mstore(0x00, 0xd7e6bcf8) // `NotInitializing()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Locks any future initializations by setting the initialized version to `2**64 - 1`.
    ///
    /// Calling this in the constructor will prevent the contract from being initialized
    /// or reinitialized. It is recommended to use this to lock implementation contracts
    /// that are designed to be called through proxies.
    ///
    /// Emits an {Initialized} event the first time it is successfully called.
    function _disableInitializers() internal virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            let i := sload(s)
            if and(i, 1) {
                mstore(0x00, 0xf92ee8a9) // `InvalidInitialization()`.
                revert(0x1c, 0x04)
            }
            let uint64max := 0xffffffffffffffff
            if iszero(eq(shr(1, i), uint64max)) {
                // Set `initializing` to 0, `initializedVersion` to `2**64 - 1`.
                sstore(s, shl(1, uint64max))
                // Emit the {Initialized} event.
                mstore(0x20, uint64max)
                log1(0x20, 0x20, _INITIALIZED_EVENT_SIGNATURE)
            }
        }
    }

    /// @dev Returns the highest version that has been initialized.
    function _getInitializedVersion() internal view virtual returns (uint64 version) {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            version := shr(1, sload(s))
        }
    }

    /// @dev Returns whether the contract is currently initializing.
    function _isInitializing() internal view virtual returns (bool result) {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            result := and(1, sload(s))
        }
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.30;

import {IERC165} from "src/interfaces/erc/IERC165.sol";
import {IERC7572} from "src/interfaces/erc/IERC7572.sol";

import {Ownable} from "solady/auth/Ownable.sol";
import {ERC20} from "solady/tokens/ERC20.sol";

library ERC20BaseStorage {

    /// @custom:storage-location erc7201:thirdweb.erc20.base
    bytes32 public constant ERC20_ASSET_STORAGE_POSITION =
        keccak256(abi.encode(uint256(keccak256("thirdweb.erc20.base")) - 1)) & ~bytes32(uint256(0xff));

    struct Data {
        string name;
        string symbol;
        string contractURI;
    }

    function data() internal pure returns (Data storage $) {
        bytes32 position = ERC20_ASSET_STORAGE_POSITION;
        assembly {
            $.slot := position
        }
    }

}

contract ERC20Base is ERC20, Ownable, IERC7572, IERC165 {

    /// @notice Initialize the ERC20 asset with token parameters and mint initial supply
    /// @dev This function can only be called once due to the initializer modifier.
    ///      Sets up the token with name, symbol, contract URI, and mints the entire max supply to the caller.
    /// @param _name The human-readable name of the token (e.g., "My Token")
    /// @param _symbol The ticker symbol of the token (e.g., "MTK")
    /// @param _contractURI The URI pointing to contract-level metadata (EIP-7572)
    /// @param _maxSupply The maximum supply of tokens to mint initially (in wei units)
    /// @param _owner The address that will become the owner of this contract
    function _initialize(
        string memory _name,
        string memory _symbol,
        string memory _contractURI,
        uint256 _maxSupply,
        address _owner
    ) internal {
        ERC20BaseStorage.Data storage data = _erc20BaseStorage();

        data.name = _name;
        data.symbol = _symbol;
        data.contractURI = _contractURI;

        _initializeOwner(_owner);
        _mint(msg.sender, _maxSupply);

        emit ContractURIUpdated();
    }

    /// @dev Returns the name of the token.
    function name() public view override returns (string memory) {
        return _erc20BaseStorage().name;
    }

    /// @dev Returns the symbol of the token.
    function symbol() public view override returns (string memory) {
        return _erc20BaseStorage().symbol;
    }

    /// @dev Returns the storage pointer for the ERC20 asset data
    function _erc20BaseStorage() internal pure returns (ERC20BaseStorage.Data storage data) {
        data = ERC20BaseStorage.data();
    }

    //
    // ERC20 Functions
    //

    /// @dev Burns tokens from the caller's account
    /// @param amount The amount of tokens to burn
    function burn(uint256 amount) external {
        _burn(msg.sender, amount);
    }

    /// @dev Burns tokens from a specified account
    /// @param from The address from which tokens will be burned
    /// @param amount The amount of tokens to burn
    function burnFrom(address from, uint256 amount) external {
        _spendAllowance(from, msg.sender, amount);
        _burn(from, amount);
    }

    //
    // EIP-7572 Contract-Level Metadata
    //

    /// @notice Get the contract-level metadata URI
    /// @dev Returns the URI pointing to contract-level metadata as per EIP-7572 specification
    /// @return The contract metadata URI string
    function contractURI() external view returns (string memory) {
        return _erc20BaseStorage().contractURI;
    }

    /// @notice Update the contract-level metadata URI
    /// @dev Only the contract owner can call this function. Emits ContractURIUpdated event as per EIP-7572
    /// @param _contractURI The new URI pointing to updated contract-level metadata
    function setContractURI(string calldata _contractURI) external onlyOwner {
        _erc20BaseStorage().contractURI = _contractURI;

        emit ContractURIUpdated();
    }
    //
    // EIP-165 Interface Detection
    //

    /// @notice Check if this contract implements a specific interface
    /// @dev Returns true if this contract implements the interface defined by interfaceId as per EIP-165.
    ///      Supports IERC7572 (Contract-Level Metadata), and IERC165 interfaces.
    /// @param interfaceId The 4-byte interface identifier to check
    /// @return True if the interface is supported, false otherwise
    function supportsInterface(bytes4 interfaceId) external pure virtual override returns (bool) {
        return interfaceId == type(IERC7572).interfaceId || interfaceId == type(IERC165).interfaceId;
    }

}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.29;

interface IERC165 {

    function supportsInterface(bytes4 interfaceID) external view returns (bool);

}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.30;

/// @title IERC7572 - Contract-Level Metadata Interface
/// @notice Interface for contract-level metadata as defined in EIP-7572
/// @dev This interface provides a standardized way for contracts to expose metadata about themselves.
///      The metadata is typically stored as JSON and can include information such as name, description,
///      image, external links, and other contract-level properties.
/// @author EIP-7572 Authors
/// @custom:eip https://eips.ethereum.org/EIPS/eip-7572
interface IERC7572 {

    /// @notice Get the contract-level metadata URI
    /// @dev Returns a URI pointing to a JSON file containing contract-level metadata.
    ///      The JSON schema should follow the contract-level metadata standard.
    ///      This function MUST return a valid URI string or an empty string if no metadata is set.
    /// @return uri The URI string pointing to the contract metadata JSON file
    function contractURI() external view returns (string memory uri);

    /// @notice Emitted when the contract-level metadata URI is updated
    /// @dev This event MUST be emitted whenever the contract URI is changed.
    ///      Indexers and applications can listen to this event to update their cached metadata.
    event ContractURIUpdated();

}

{
  "viaIR": true,
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 100000
  },
  "evmVersion": "paris",
  "remappings": [
    ":@ensdomains/=lib/v4-core/node_modules/@ensdomains/",
    ":@openzeppelin/=lib/v4-core/lib/openzeppelin-contracts/",
    ":@uniswap/permit2/=lib/permit2/",
    ":@uniswap/universal-router/=lib/universal-router/",
    ":@uniswap/v2-core/=lib/universal-router/node_modules/@uniswap/v2-core/",
    ":@uniswap/v3-core/=lib/universal-router/node_modules/@uniswap/v3-core/",
    ":@uniswap/v3-periphery/=lib/universal-router/lib/v3-periphery/",
    ":@uniswap/v4-core/=lib/v4-core/",
    ":@uniswap/v4-periphery/=lib/v4-periphery/",
    ":ds-test/=lib/universal-router/lib/forge-std/lib/ds-test/src/",
    ":erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    ":forge-gas-snapshot/=lib/permit2/lib/forge-gas-snapshot/src/",
    ":forge-std/=lib/forge-std/src/",
    ":halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
    ":hardhat/=lib/v4-core/node_modules/hardhat/",
    ":murky/=lib/murky/",
    ":openzeppelin-contracts/=lib/openzeppelin-contracts/",
    ":permit2/=lib/permit2/",
    ":solady/=lib/solady/src/",
    ":solmate/=lib/universal-router/lib/solmate/",
    ":universal-router/=lib/universal-router/",
    ":v3-periphery/=lib/universal-router/lib/v3-periphery/contracts/",
    ":v4-core/=lib/v4-core/src/",
    ":v4-periphery/=lib/v4-periphery/"
  ],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

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rExpiresAt","outputs":[{"internalType":"uint256","name":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"_contractURI","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"result","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":"payable","type":"function"}]