Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

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

import {BeefyBridgeAdapter} from "../BeefyBridgeAdapter.sol";
import {IERC20} from "@openzeppelin-4/contracts/token/ERC20/ERC20.sol";
import {IERC20Permit} from "@openzeppelin-4/contracts/token/ERC20/extensions/ERC20Permit.sol";
import {SafeERC20} from  "@openzeppelin-4/contracts/token/ERC20/utils/SafeERC20.sol";
import {IXERC20} from "../../interfaces/IXERC20.sol";
import {IXERC20Lockbox} from "../../interfaces/IXERC20Lockbox.sol";
import {NonblockingLzApp} from "./NonblockingLzApp.sol";

// Lazyer Zero Token Bridge adapter for XERC20 tokens
contract LayerZeroBridge is NonblockingLzApp, BeefyBridgeAdapter {
    using SafeERC20 for IERC20;

    // Bridge params
    uint16 private version = 1;
    uint256 public gasLimit;

    // Chain id mappings
    mapping (uint256 => uint16) public chainIdToLzId;
    mapping (uint16 => uint256) public lzIdToChainId;

    /**@notice Initialize the bridge
     * @param _bifi BIFI token address
     * @param _xbifi xBIFI token address
     * @param _lockbox xBIFI lockbox address
     * @param _contracts additional contracts needed
     */
    function initialize(
        IERC20 _bifi,
        IXERC20 _xbifi, 
        IXERC20Lockbox _lockbox,
        address[] calldata _contracts
    ) public override initializer {
        __NonblockingLzAppInit(_contracts[0]);
        BIFI = _bifi;
        xBIFI = _xbifi;
        lockbox = _lockbox;

        if (address(lockbox) != address(0)) {
            BIFI.safeApprove(address(lockbox), type(uint).max);
            IERC20(address(xBIFI)).safeApprove(address(lockbox), type(uint).max);
        }
    }

    function _bridge(address _user, uint256 _dstChainId, uint256 _amount, address _to) internal override {
        _bridgeOut(_user, _amount);

        // Send message to receiving bridge to mint tokens to user. 
        bytes memory adapterParams = abi.encodePacked(version, gasLimit);
        bytes memory payload = abi.encode(_to, _amount);
        
         _lzSend( // {value: messageFee} will be paid out of this contract!
                chainIdToLzId[_dstChainId], // destination chainId
                payload, // abi.encode()'ed bytes
                payable(_user), // refund address (LayerZero will refund any extra gas back to caller of send()
                address(0x0), // future param, unused for this example
                adapterParams, // v1 adapterParams, specify custom destination gas qty
                msg.value
        );

        emit BridgedOut(_dstChainId, _user, _to, _amount);
    }

    /**@notice Estimate gas cost to bridge out funds
     * @param _dstChainId Destination chain id 
     * @param _amount Amount of BIFI to bridge out
     * @param _to Address to receive funds on destination chain
     */
    function bridgeCost(uint256 _dstChainId, uint256 _amount, address _to) external override view returns (uint256 gasCost) {
        bytes memory adapterParams = abi.encodePacked(version, gasLimit);
        bytes memory payload = abi.encode(_to, _amount);
        
        (gasCost,) = lzEndpoint.estimateFees(
            chainIdToLzId[_dstChainId],
            address(this),
            payload,
            false,
            adapterParams
        );
    }

    /**@notice Add chain ids to the bridge
     * @param _chainIds Chain ids to add
     * @param _lzIds LayerZero ids to add
     */
    function addChainIds(uint256[] calldata _chainIds, uint16[] calldata _lzIds) external onlyOwner {
        for (uint i; i < _chainIds.length; ++i) {
            chainIdToLzId[_chainIds[i]] = _lzIds[i];
            lzIdToChainId[_lzIds[i]] = _chainIds[i];
        }
    }

    function _nonblockingLzReceive(
        uint16 _srcChainId,
        bytes memory /* _srcAddress */, 
        uint64, /*_nonce*/
        bytes memory _payload
    ) internal override {
        (address user, uint256 amount) = abi.decode(_payload, (address,uint256));
        
        _bridgeIn(lzIdToChainId[_srcChainId], user, amount);   
    }

    /**@notice Set gas limit for destination chain execution
     * @param _gasLimit Gas limit for destination chain execution
     */
    function setGasLimit(uint256 _gasLimit) external onlyOwner {
        gasLimit = _gasLimit;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// 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/ERC20Permit.sol)

pragma solidity ^0.8.0;

import "./IERC20Permit.sol";
import "../ERC20.sol";
import "../../../utils/cryptography/ECDSA.sol";
import "../../../utils/cryptography/EIP712.sol";
import "../../../utils/Counters.sol";

/**
 * @dev Implementation 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.
 *
 * _Available since v3.4._
 */
abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 {
    using Counters for Counters.Counter;

    mapping(address => Counters.Counter) private _nonces;

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private constant _PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    /**
     * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`.
     * However, to ensure consistency with the upgradeable transpiler, we will continue
     * to reserve a slot.
     * @custom:oz-renamed-from _PERMIT_TYPEHASH
     */
    // solhint-disable-next-line var-name-mixedcase
    bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT;

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    constructor(string memory name) EIP712(name, "1") {}

    /**
     * @dev See {IERC20Permit-permit}.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual override {
        require(block.timestamp <= deadline, "ERC20Permit: expired deadline");

        bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSA.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _approve(owner, spender, value);
    }

    /**
     * @dev See {IERC20Permit-nonces}.
     */
    function nonces(address owner) public view virtual override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }

    /**
     * @dev "Consume a nonce": return the current value and increment.
     *
     * _Available since v4.1._
     */
    function _useNonce(address owner) internal virtual returns (uint256 current) {
        Counters.Counter storage nonce = _nonces[owner];
        current = nonce.current();
        nonce.increment();
    }
}

// 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 v4.9.0) (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.
 */
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].
     */
    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 v4.9.0) (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. Compatible with tokens that require the approval to be set to
     * 0 before setting it to a non-zero value.
     */
    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) (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 v4.4.1 (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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

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

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSA.sol";
import "../ShortStrings.sol";
import "../../interfaces/IERC5267.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _name.toStringWithFallback(_nameFallback),
            _version.toStringWithFallback(_versionFallback),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }
}

// 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: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

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

pragma solidity ^0.8.8;

import "./StorageSlot.sol";

// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |
// | length  | 0x                                                              BB |
type ShortString is bytes32;

/**
 * @dev This library provides functions to convert short memory strings
 * into a `ShortString` type that can be used as an immutable variable.
 *
 * Strings of arbitrary length can be optimized using this library if
 * they are short enough (up to 31 bytes) by packing them with their
 * length (1 byte) in a single EVM word (32 bytes). Additionally, a
 * fallback mechanism can be used for every other case.
 *
 * Usage example:
 *
 * ```solidity
 * contract Named {
 *     using ShortStrings for *;
 *
 *     ShortString private immutable _name;
 *     string private _nameFallback;
 *
 *     constructor(string memory contractName) {
 *         _name = contractName.toShortStringWithFallback(_nameFallback);
 *     }
 *
 *     function name() external view returns (string memory) {
 *         return _name.toStringWithFallback(_nameFallback);
 *     }
 * }
 * ```
 */
library ShortStrings {
    // Used as an identifier for strings longer than 31 bytes.
    bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;

    error StringTooLong(string str);
    error InvalidShortString();

    /**
     * @dev Encode a string of at most 31 chars into a `ShortString`.
     *
     * This will trigger a `StringTooLong` error is the input string is too long.
     */
    function toShortString(string memory str) internal pure returns (ShortString) {
        bytes memory bstr = bytes(str);
        if (bstr.length > 31) {
            revert StringTooLong(str);
        }
        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
    }

    /**
     * @dev Decode a `ShortString` back to a "normal" string.
     */
    function toString(ShortString sstr) internal pure returns (string memory) {
        uint256 len = byteLength(sstr);
        // using `new string(len)` would work locally but is not memory safe.
        string memory str = new string(32);
        /// @solidity memory-safe-assembly
        assembly {
            mstore(str, len)
            mstore(add(str, 0x20), sstr)
        }
        return str;
    }

    /**
     * @dev Return the length of a `ShortString`.
     */
    function byteLength(ShortString sstr) internal pure returns (uint256) {
        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
        if (result > 31) {
            revert InvalidShortString();
        }
        return result;
    }

    /**
     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
     */
    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
        if (bytes(value).length < 32) {
            return toShortString(value);
        } else {
            StorageSlot.getStringSlot(store).value = value;
            return ShortString.wrap(_FALLBACK_SENTINEL);
        }
    }

    /**
     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     */
    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return toString(value);
        } else {
            return store;
        }
    }

    /**
     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     *
     * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
     */
    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return byteLength(value);
        } else {
            return bytes(store).length;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
 * _Available since v4.9 for `string`, `bytes`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

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

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _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);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

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

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. 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 executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized != type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

// 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 AddressUpgradeable {
    /**
     * @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 v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

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

import {IERC20} from "@openzeppelin-4/contracts/token/ERC20/ERC20.sol";
import {IERC20Permit} from "@openzeppelin-4/contracts/token/ERC20/extensions/ERC20Permit.sol";
import {SafeERC20} from "@openzeppelin-4/contracts/token/ERC20/utils/SafeERC20.sol";
import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {IXERC20} from "../interfaces/IXERC20.sol";
import {IXERC20Lockbox} from "../interfaces/IXERC20Lockbox.sol";

// Beefy Bridge Adapter Base
contract BeefyBridgeAdapter is OwnableUpgradeable {
    using SafeERC20 for IERC20;
    
    // Addresses needed
    IERC20 public BIFI;
    IXERC20 public xBIFI;
    IXERC20Lockbox public lockbox;
    uint256 private nonce;

    struct Error {
        uint256 chainId;
        address user; 
        uint256 amount;
    }

    // Map Error events for retry. 
    mapping (uint256 => Error) public errors;

    // Events
    event BridgedOut(uint256 indexed dstChainId, address indexed bridgeUser, address indexed tokenReceiver, uint256 amount);
    event BridgedIn(uint256 indexed srcChainId, address indexed tokenReceiver, uint256 amount);
    event BridgeError(uint256 indexed errorId, address indexed user, uint256 amount, uint256 timestamp);

    error NoErrorFound();

    /**@notice Initialize the bridge
     * @param _bifi BIFI token address
     * @param _xbifi xBIFI token address
     * @param _lockbox xBIFI lockbox address
     */
    function initialize(
        IERC20 _bifi,
        IXERC20 _xbifi, 
        IXERC20Lockbox _lockbox,
        address[] calldata 
    ) public virtual initializer {
        __Ownable_init();
        BIFI = _bifi;
        xBIFI = _xbifi;
        lockbox = _lockbox;

        if (address(lockbox) != address(0)) {
            BIFI.safeApprove(address(lockbox), type(uint).max);
            IERC20(address(xBIFI)).safeApprove(address(lockbox), type(uint).max);
        }
    }

    /**@notice Bridge Out Funds
     * @param _dstChainId Destination chain id 
     * @param _amount Amount of BIFI to bridge out
     * @param _to Address to receive funds on destination chain
     */
    function bridge(uint256 _dstChainId, uint256 _amount, address _to) external virtual payable {
        _bridge(msg.sender, _dstChainId, _amount, _to);
    }

    function _bridge(address _user, uint256 _dstChainId, uint256 _amount, address _to) internal virtual {
        
        _bridgeOut(_user, _amount);

        emit BridgedOut(_dstChainId, _user, _to, _amount);
    }

    function _bridgeOut(address _user, uint256 _amount) internal virtual {
        // Lock BIFI in lockbox and burn minted tokens. 
        if (address(lockbox) != address(0)) {
            BIFI.safeTransferFrom(_user, address(this), _amount);
            lockbox.deposit(_amount);
            xBIFI.burn(address(this), _amount);
        } else xBIFI.burn(_user, _amount);
    }

    function _bridgeIn(uint256 _chainId, address _user, uint256 _amount) internal virtual {
        try xBIFI.mint(address(this), _amount) {
            if (address(lockbox) != address(0)) {
                lockbox.withdraw(_amount);
                BIFI.safeTransfer(_user, _amount);
            } else IERC20(address(xBIFI)).safeTransfer(_user, _amount); 
            emit BridgedIn(_chainId, _user, _amount);  
        } catch {
            uint256 _nonce = nonce;
            errors[_nonce] = Error(_chainId, _user, _amount);
            nonce++;
            emit BridgeError(_nonce, _user, _amount, block.timestamp);
        }
    }

    function retry(uint256 _errorId) external {
        Error memory _error = errors[_errorId];
        delete errors[_errorId];

        if (_error.user == address(0)) revert NoErrorFound();

        _bridgeIn(_error.chainId, _error.user, _error.amount);
    }

    /**@notice Estimate bridge cost
     * @param _dstChainId Destination chain id
     * @param _amount Amount of BIFI to bridge out
     * @param _to Address to receive funds on destination chain
     */
    function bridgeCost(uint256 _dstChainId, uint256 _amount, address _to) external virtual view returns (uint256 gasCost) {
        _dstChainId; _amount; _to;
        return 0;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

import "./ILayerZeroUserApplicationConfig.sol";

interface ILayerZeroEndpoint is ILayerZeroUserApplicationConfig {
    // @notice send a LayerZero message to the specified address at a LayerZero endpoint.
    // @param _dstChainId - the destination chain identifier
    // @param _destination - the address on destination chain (in bytes). address length/format may vary by chains
    // @param _payload - a custom bytes payload to send to the destination contract
    // @param _refundAddress - if the source transaction is cheaper than the amount of value passed, refund the additional amount to this address
    // @param _zroPaymentAddress - the address of the ZRO token holder who would pay for the transaction
    // @param _adapterParams - parameters for custom functionality. e.g. receive airdropped native gas from the relayer on destination
    function send(uint16 _dstChainId, bytes calldata _destination, bytes calldata _payload, address payable _refundAddress, address _zroPaymentAddress, bytes calldata _adapterParams) external payable;

    // @notice used by the messaging library to publish verified payload
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source contract (as bytes) at the source chain
    // @param _dstAddress - the address on destination chain
    // @param _nonce - the unbound message ordering nonce
    // @param _gasLimit - the gas limit for external contract execution
    // @param _payload - verified payload to send to the destination contract
    function receivePayload(uint16 _srcChainId, bytes calldata _srcAddress, address _dstAddress, uint64 _nonce, uint _gasLimit, bytes calldata _payload) external;

    // @notice get the inboundNonce of a lzApp from a source chain which could be EVM or non-EVM chain
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source chain contract address
    function getInboundNonce(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (uint64);

    // @notice get the outboundNonce from this source chain which, consequently, is always an EVM
    // @param _srcAddress - the source chain contract address
    function getOutboundNonce(uint16 _dstChainId, address _srcAddress) external view returns (uint64);

    // @notice gets a quote in source native gas, for the amount that send() requires to pay for message delivery
    // @param _dstChainId - the destination chain identifier
    // @param _userApplication - the user app address on this EVM chain
    // @param _payload - the custom message to send over LayerZero
    // @param _payInZRO - if false, user app pays the protocol fee in native token
    // @param _adapterParam - parameters for the adapter service, e.g. send some dust native token to dstChain
    function estimateFees(uint16 _dstChainId, address _userApplication, bytes calldata _payload, bool _payInZRO, bytes calldata _adapterParam) external view returns (uint nativeFee, uint zroFee);

    // @notice get this Endpoint's immutable source identifier
    function getChainId() external view returns (uint16);

    // @notice the interface to retry failed message on this Endpoint destination
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source chain contract address
    // @param _payload - the payload to be retried
    function retryPayload(uint16 _srcChainId, bytes calldata _srcAddress, bytes calldata _payload) external;

    // @notice query if any STORED payload (message blocking) at the endpoint.
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source chain contract address
    function hasStoredPayload(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool);

    // @notice query if the _libraryAddress is valid for sending msgs.
    // @param _userApplication - the user app address on this EVM chain
    function getSendLibraryAddress(address _userApplication) external view returns (address);

    // @notice query if the _libraryAddress is valid for receiving msgs.
    // @param _userApplication - the user app address on this EVM chain
    function getReceiveLibraryAddress(address _userApplication) external view returns (address);

    // @notice query if the non-reentrancy guard for send() is on
    // @return true if the guard is on. false otherwise
    function isSendingPayload() external view returns (bool);

    // @notice query if the non-reentrancy guard for receive() is on
    // @return true if the guard is on. false otherwise
    function isReceivingPayload() external view returns (bool);

    // @notice get the configuration of the LayerZero messaging library of the specified version
    // @param _version - messaging library version
    // @param _chainId - the chainId for the pending config change
    // @param _userApplication - the contract address of the user application
    // @param _configType - type of configuration. every messaging library has its own convention.
    function getConfig(uint16 _version, uint16 _chainId, address _userApplication, uint _configType) external view returns (bytes memory);

    // @notice get the send() LayerZero messaging library version
    // @param _userApplication - the contract address of the user application
    function getSendVersion(address _userApplication) external view returns (uint16);

    // @notice get the lzReceive() LayerZero messaging library version
    // @param _userApplication - the contract address of the user application
    function getReceiveVersion(address _userApplication) external view returns (uint16);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface ILayerZeroReceiver {
    // @notice LayerZero endpoint will invoke this function to deliver the message on the destination
    // @param _srcChainId - the source endpoint identifier
    // @param _srcAddress - the source sending contract address from the source chain
    // @param _nonce - the ordered message nonce
    // @param _payload - the signed payload is the UA bytes has encoded to be sent
    function lzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface ILayerZeroUserApplicationConfig {
    // @notice set the configuration of the LayerZero messaging library of the specified version
    // @param _version - messaging library version
    // @param _chainId - the chainId for the pending config change
    // @param _configType - type of configuration. every messaging library has its own convention.
    // @param _config - configuration in the bytes. can encode arbitrary content.
    function setConfig(uint16 _version, uint16 _chainId, uint _configType, bytes calldata _config) external;

    // @notice set the send() LayerZero messaging library version to _version
    // @param _version - new messaging library version
    function setSendVersion(uint16 _version) external;

    // @notice set the lzReceive() LayerZero messaging library version to _version
    // @param _version - new messaging library version
    function setReceiveVersion(uint16 _version) external;

    // @notice Only when the UA needs to resume the message flow in blocking mode and clear the stored payload
    // @param _srcChainId - the chainId of the source chain
    // @param _srcAddress - the contract address of the source contract at the source chain
    function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external;
}

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

import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {ILayerZeroReceiver} from "./interfaces/ILayerZeroReceiver.sol";
import {ILayerZeroUserApplicationConfig} from "./interfaces/ILayerZeroUserApplicationConfig.sol";
import {ILayerZeroEndpoint} from "./interfaces/ILayerZeroEndpoint.sol";
import {BytesLib} from "./util/BytesLib.sol";

/*
 * a generic LzReceiver implementation
 */
abstract contract LzApp is OwnableUpgradeable, ILayerZeroReceiver, ILayerZeroUserApplicationConfig {
    using BytesLib for bytes;

    // ua can not send payload larger than this by default, but it can be changed by the ua owner
    uint constant public DEFAULT_PAYLOAD_SIZE_LIMIT = 10000;

    ILayerZeroEndpoint public lzEndpoint;
    mapping(uint16 => bytes) public trustedRemoteLookup;
    mapping(uint16 => mapping(uint16 => uint)) public minDstGasLookup;
    mapping(uint16 => uint) public payloadSizeLimitLookup;
    address public precrime;

    event SetPrecrime(address precrime);
    event SetTrustedRemote(uint16 _remoteChainId, bytes _path);
    event SetTrustedRemoteAddress(uint16 _remoteChainId, bytes _remoteAddress);
    event SetMinDstGas(uint16 _dstChainId, uint16 _type, uint _minDstGas);

    function __LzAppInit(address _endpoint) internal onlyInitializing {
        __Ownable_init();
        lzEndpoint = ILayerZeroEndpoint(_endpoint);
    }

    function lzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public virtual override {
        // lzReceive must be called by the endpoint for security
        require(_msgSender() == address(lzEndpoint), "LzApp: invalid endpoint caller");

        bytes memory trustedRemote = trustedRemoteLookup[_srcChainId];
        // if will still block the message pathway from (srcChainId, srcAddress). should not receive message from untrusted remote.
        require(_srcAddress.length == trustedRemote.length && trustedRemote.length > 0 && keccak256(_srcAddress) == keccak256(trustedRemote), "LzApp: invalid source sending contract");

        _blockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
    }

    // abstract function - the default behaviour of LayerZero is blocking. See: NonblockingLzApp if you dont need to enforce ordered messaging
    function _blockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual;

    function _lzSend(uint16 _dstChainId, bytes memory _payload, address payable _refundAddress, address _zroPaymentAddress, bytes memory _adapterParams, uint _nativeFee) internal virtual {
        bytes memory trustedRemote = trustedRemoteLookup[_dstChainId];
        require(trustedRemote.length != 0, "LzApp: destination chain is not a trusted source");
        _checkPayloadSize(_dstChainId, _payload.length);
        lzEndpoint.send{value: _nativeFee}(_dstChainId, trustedRemote, _payload, _refundAddress, _zroPaymentAddress, _adapterParams);
    }

    function _checkGasLimit(uint16 _dstChainId, uint16 _type, bytes memory _adapterParams, uint _extraGas) internal view virtual {
        uint providedGasLimit = _getGasLimit(_adapterParams);
        uint minGasLimit = minDstGasLookup[_dstChainId][_type] + _extraGas;
        require(minGasLimit > 0, "LzApp: minGasLimit not set");
        require(providedGasLimit >= minGasLimit, "LzApp: gas limit is too low");
    }

    function _getGasLimit(bytes memory _adapterParams) internal pure virtual returns (uint gasLimit) {
        require(_adapterParams.length >= 34, "LzApp: invalid adapterParams");
        assembly {
            gasLimit := mload(add(_adapterParams, 34))
        }
    }

    function _checkPayloadSize(uint16 _dstChainId, uint _payloadSize) internal view virtual {
        uint payloadSizeLimit = payloadSizeLimitLookup[_dstChainId];
        if (payloadSizeLimit == 0) { // use default if not set
            payloadSizeLimit = DEFAULT_PAYLOAD_SIZE_LIMIT;
        }
        require(_payloadSize <= payloadSizeLimit, "LzApp: payload size is too large");
    }

    //---------------------------UserApplication config----------------------------------------
    function getConfig(uint16 _version, uint16 _chainId, address, uint _configType) external view returns (bytes memory) {
        return lzEndpoint.getConfig(_version, _chainId, address(this), _configType);
    }

    // generic config for LayerZero user Application
    function setConfig(uint16 _version, uint16 _chainId, uint _configType, bytes calldata _config) external override onlyOwner {
        lzEndpoint.setConfig(_version, _chainId, _configType, _config);
    }

    function setSendVersion(uint16 _version) external override onlyOwner {
        lzEndpoint.setSendVersion(_version);
    }

    function setReceiveVersion(uint16 _version) external override onlyOwner {
        lzEndpoint.setReceiveVersion(_version);
    }

    function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external override onlyOwner {
        lzEndpoint.forceResumeReceive(_srcChainId, _srcAddress);
    }

    // _path = abi.encodePacked(remoteAddress, localAddress)
    // this function set the trusted path for the cross-chain communication
    function setTrustedRemote(uint16 _remoteChainId, bytes calldata _path) external onlyOwner {
        trustedRemoteLookup[_remoteChainId] = _path;
        emit SetTrustedRemote(_remoteChainId, _path);
    }

    function setTrustedRemoteAddress(uint16 _remoteChainId, bytes calldata _remoteAddress) external onlyOwner {
        trustedRemoteLookup[_remoteChainId] = abi.encodePacked(_remoteAddress, address(this));
        emit SetTrustedRemoteAddress(_remoteChainId, _remoteAddress);
    }

    function getTrustedRemoteAddress(uint16 _remoteChainId) external view returns (bytes memory) {
        bytes memory path = trustedRemoteLookup[_remoteChainId];
        require(path.length != 0, "LzApp: no trusted path record");
        return path.slice(0, path.length - 20); // the last 20 bytes should be address(this)
    }

    function setPrecrime(address _precrime) external onlyOwner {
        precrime = _precrime;
        emit SetPrecrime(_precrime);
    }

    function setMinDstGas(uint16 _dstChainId, uint16 _packetType, uint _minGas) external onlyOwner {
        require(_minGas > 0, "LzApp: invalid minGas");
        minDstGasLookup[_dstChainId][_packetType] = _minGas;
        emit SetMinDstGas(_dstChainId, _packetType, _minGas);
    }

    // if the size is 0, it means default size limit
    function setPayloadSizeLimit(uint16 _dstChainId, uint _size) external onlyOwner {
        payloadSizeLimitLookup[_dstChainId] = _size;
    }

    //--------------------------- VIEW FUNCTION ----------------------------------------
    function isTrustedRemote(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool) {
        bytes memory trustedSource = trustedRemoteLookup[_srcChainId];
        return keccak256(trustedSource) == keccak256(_srcAddress);
    }
}

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

import {LzApp} from "./LzApp.sol";
import {ExcessivelySafeCall} from "./util/ExcessivelySafeCall.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

/*
 * the default LayerZero messaging behaviour is blocking, i.e. any failed message will block the channel
 * this abstract class try-catch all fail messages and store locally for future retry. hence, non-blocking
 * NOTE: if the srcAddress is not configured properly, it will still block the message pathway from (srcChainId, srcAddress)
 */
abstract contract NonblockingLzApp is LzApp {
    using ExcessivelySafeCall for address;

    function __NonblockingLzAppInit(address _endpoint) internal onlyInitializing {
        __LzAppInit(_endpoint);
    }

    mapping(uint16 => mapping(bytes => mapping(uint64 => bytes32))) public failedMessages;

    event MessageFailed(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes _payload, bytes _reason);
    event RetryMessageSuccess(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes32 _payloadHash);

    // overriding the virtual function in LzReceiver
    function _blockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual override {
        (bool success, bytes memory reason) = address(this).excessivelySafeCall(gasleft(), 150, abi.encodeWithSelector(this.nonblockingLzReceive.selector, _srcChainId, _srcAddress, _nonce, _payload));
        // try-catch all errors/exceptions
        if (!success) {
            _storeFailedMessage(_srcChainId, _srcAddress, _nonce, _payload, reason);
        }
    }

    function _storeFailedMessage(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload, bytes memory _reason) internal virtual {
        failedMessages[_srcChainId][_srcAddress][_nonce] = keccak256(_payload);
        emit MessageFailed(_srcChainId, _srcAddress, _nonce, _payload, _reason);
    }

    function nonblockingLzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public virtual {
        // only internal transaction
        require(_msgSender() == address(this), "NonblockingLzApp: caller must be LzApp");
        _nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
    }

    //@notice override this function
    function _nonblockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual;

    function retryMessage(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public payable virtual {
        // assert there is message to retry
        bytes32 payloadHash = failedMessages[_srcChainId][_srcAddress][_nonce];
        require(payloadHash != bytes32(0), "NonblockingLzApp: no stored message");
        require(keccak256(_payload) == payloadHash, "NonblockingLzApp: invalid payload");
        // clear the stored message
        failedMessages[_srcChainId][_srcAddress][_nonce] = bytes32(0);
        // execute the message. revert if it fails again
        _nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
        emit RetryMessageSuccess(_srcChainId, _srcAddress, _nonce, payloadHash);
    }
}

// SPDX-License-Identifier: Unlicense
/*
 * @title Solidity Bytes Arrays Utils
 * @author Gonçalo Sá <[email protected]>
 *
 * @dev Bytes tightly packed arrays utility library for ethereum contracts written in Solidity.
 *      The library lets you concatenate, slice and type cast bytes arrays both in memory and storage.
 */
pragma solidity >=0.8.0 <0.9.0;


library BytesLib {
    function concat(
        bytes memory _preBytes,
        bytes memory _postBytes
    )
    internal
    pure
    returns (bytes memory)
    {
        bytes memory tempBytes;

        assembly {
        // Get a location of some free memory and store it in tempBytes as
        // Solidity does for memory variables.
            tempBytes := mload(0x40)

        // Store the length of the first bytes array at the beginning of
        // the memory for tempBytes.
            let length := mload(_preBytes)
            mstore(tempBytes, length)

        // Maintain a memory counter for the current write location in the
        // temp bytes array by adding the 32 bytes for the array length to
        // the starting location.
            let mc := add(tempBytes, 0x20)
        // Stop copying when the memory counter reaches the length of the
        // first bytes array.
            let end := add(mc, length)

            for {
            // Initialize a copy counter to the start of the _preBytes data,
            // 32 bytes into its memory.
                let cc := add(_preBytes, 0x20)
            } lt(mc, end) {
            // Increase both counters by 32 bytes each iteration.
                mc := add(mc, 0x20)
                cc := add(cc, 0x20)
            } {
            // Write the _preBytes data into the tempBytes memory 32 bytes
            // at a time.
                mstore(mc, mload(cc))
            }

        // Add the length of _postBytes to the current length of tempBytes
        // and store it as the new length in the first 32 bytes of the
        // tempBytes memory.
            length := mload(_postBytes)
            mstore(tempBytes, add(length, mload(tempBytes)))

        // Move the memory counter back from a multiple of 0x20 to the
        // actual end of the _preBytes data.
            mc := end
        // Stop copying when the memory counter reaches the new combined
        // length of the arrays.
            end := add(mc, length)

            for {
                let cc := add(_postBytes, 0x20)
            } lt(mc, end) {
                mc := add(mc, 0x20)
                cc := add(cc, 0x20)
            } {
                mstore(mc, mload(cc))
            }

        // Update the free-memory pointer by padding our last write location
        // to 32 bytes: add 31 bytes to the end of tempBytes to move to the
        // next 32 byte block, then round down to the nearest multiple of
        // 32. If the sum of the length of the two arrays is zero then add
        // one before rounding down to leave a blank 32 bytes (the length block with 0).
            mstore(0x40, and(
            add(add(end, iszero(add(length, mload(_preBytes)))), 31),
            not(31) // Round down to the nearest 32 bytes.
            ))
        }

        return tempBytes;
    }

    function concatStorage(bytes storage _preBytes, bytes memory _postBytes) internal {
        assembly {
        // Read the first 32 bytes of _preBytes storage, which is the length
        // of the array. (We don't need to use the offset into the slot
        // because arrays use the entire slot.)
            let fslot := sload(_preBytes.slot)
        // Arrays of 31 bytes or less have an even value in their slot,
        // while longer arrays have an odd value. The actual length is
        // the slot divided by two for odd values, and the lowest order
        // byte divided by two for even values.
        // If the slot is even, bitwise and the slot with 255 and divide by
        // two to get the length. If the slot is odd, bitwise and the slot
        // with -1 and divide by two.
            let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
            let mlength := mload(_postBytes)
            let newlength := add(slength, mlength)
        // slength can contain both the length and contents of the array
        // if length < 32 bytes so let's prepare for that
        // v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
            switch add(lt(slength, 32), lt(newlength, 32))
            case 2 {
            // Since the new array still fits in the slot, we just need to
            // update the contents of the slot.
            // uint256(bytes_storage) = uint256(bytes_storage) + uint256(bytes_memory) + new_length
                sstore(
                _preBytes.slot,
                // all the modifications to the slot are inside this
                // next block
                add(
                // we can just add to the slot contents because the
                // bytes we want to change are the LSBs
                fslot,
                add(
                mul(
                div(
                // load the bytes from memory
                mload(add(_postBytes, 0x20)),
                // zero all bytes to the right
                exp(0x100, sub(32, mlength))
                ),
                // and now shift left the number of bytes to
                // leave space for the length in the slot
                exp(0x100, sub(32, newlength))
                ),
                // increase length by the double of the memory
                // bytes length
                mul(mlength, 2)
                )
                )
                )
            }
            case 1 {
            // The stored value fits in the slot, but the combined value
            // will exceed it.
            // get the keccak hash to get the contents of the array
                mstore(0x0, _preBytes.slot)
                let sc := add(keccak256(0x0, 0x20), div(slength, 32))

            // save new length
                sstore(_preBytes.slot, add(mul(newlength, 2), 1))

            // The contents of the _postBytes array start 32 bytes into
            // the structure. Our first read should obtain the `submod`
            // bytes that can fit into the unused space in the last word
            // of the stored array. To get this, we read 32 bytes starting
            // from `submod`, so the data we read overlaps with the array
            // contents by `submod` bytes. Masking the lowest-order
            // `submod` bytes allows us to add that value directly to the
            // stored value.

                let submod := sub(32, slength)
                let mc := add(_postBytes, submod)
                let end := add(_postBytes, mlength)
                let mask := sub(exp(0x100, submod), 1)

                sstore(
                sc,
                add(
                and(
                fslot,
                0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00
                ),
                and(mload(mc), mask)
                )
                )

                for {
                    mc := add(mc, 0x20)
                    sc := add(sc, 1)
                } lt(mc, end) {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } {
                    sstore(sc, mload(mc))
                }

                mask := exp(0x100, sub(mc, end))

                sstore(sc, mul(div(mload(mc), mask), mask))
            }
            default {
            // get the keccak hash to get the contents of the array
                mstore(0x0, _preBytes.slot)
            // Start copying to the last used word of the stored array.
                let sc := add(keccak256(0x0, 0x20), div(slength, 32))

            // save new length
                sstore(_preBytes.slot, add(mul(newlength, 2), 1))

            // Copy over the first `submod` bytes of the new data as in
            // case 1 above.
                let slengthmod := mod(slength, 32)
                let mlengthmod := mod(mlength, 32)
                let submod := sub(32, slengthmod)
                let mc := add(_postBytes, submod)
                let end := add(_postBytes, mlength)
                let mask := sub(exp(0x100, submod), 1)

                sstore(sc, add(sload(sc), and(mload(mc), mask)))

                for {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } lt(mc, end) {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } {
                    sstore(sc, mload(mc))
                }

                mask := exp(0x100, sub(mc, end))

                sstore(sc, mul(div(mload(mc), mask), mask))
            }
        }
    }

    function slice(
        bytes memory _bytes,
        uint256 _start,
        uint256 _length
    )
    internal
    pure
    returns (bytes memory)
    {
        require(_length + 31 >= _length, "slice_overflow");
        require(_bytes.length >= _start + _length, "slice_outOfBounds");

        bytes memory tempBytes;

        assembly {
            switch iszero(_length)
            case 0 {
            // Get a location of some free memory and store it in tempBytes as
            // Solidity does for memory variables.
                tempBytes := mload(0x40)

            // The first word of the slice result is potentially a partial
            // word read from the original array. To read it, we calculate
            // the length of that partial word and start copying that many
            // bytes into the array. The first word we copy will start with
            // data we don't care about, but the last `lengthmod` bytes will
            // land at the beginning of the contents of the new array. When
            // we're done copying, we overwrite the full first word with
            // the actual length of the slice.
                let lengthmod := and(_length, 31)

            // The multiplication in the next line is necessary
            // because when slicing multiples of 32 bytes (lengthmod == 0)
            // the following copy loop was copying the origin's length
            // and then ending prematurely not copying everything it should.
                let mc := add(add(tempBytes, lengthmod), mul(0x20, iszero(lengthmod)))
                let end := add(mc, _length)

                for {
                // The multiplication in the next line has the same exact purpose
                // as the one above.
                    let cc := add(add(add(_bytes, lengthmod), mul(0x20, iszero(lengthmod))), _start)
                } lt(mc, end) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                    mstore(mc, mload(cc))
                }

                mstore(tempBytes, _length)

            //update free-memory pointer
            //allocating the array padded to 32 bytes like the compiler does now
                mstore(0x40, and(add(mc, 31), not(31)))
            }
            //if we want a zero-length slice let's just return a zero-length array
            default {
                tempBytes := mload(0x40)
            //zero out the 32 bytes slice we are about to return
            //we need to do it because Solidity does not garbage collect
                mstore(tempBytes, 0)

                mstore(0x40, add(tempBytes, 0x20))
            }
        }

        return tempBytes;
    }

    function toAddress(bytes memory _bytes, uint256 _start) internal pure returns (address) {
        require(_bytes.length >= _start + 20, "toAddress_outOfBounds");
        address tempAddress;

        assembly {
            tempAddress := div(mload(add(add(_bytes, 0x20), _start)), 0x1000000000000000000000000)
        }

        return tempAddress;
    }

    function toUint8(bytes memory _bytes, uint256 _start) internal pure returns (uint8) {
        require(_bytes.length >= _start + 1 , "toUint8_outOfBounds");
        uint8 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x1), _start))
        }

        return tempUint;
    }

    function toUint16(bytes memory _bytes, uint256 _start) internal pure returns (uint16) {
        require(_bytes.length >= _start + 2, "toUint16_outOfBounds");
        uint16 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x2), _start))
        }

        return tempUint;
    }

    function toUint32(bytes memory _bytes, uint256 _start) internal pure returns (uint32) {
        require(_bytes.length >= _start + 4, "toUint32_outOfBounds");
        uint32 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x4), _start))
        }

        return tempUint;
    }

    function toUint64(bytes memory _bytes, uint256 _start) internal pure returns (uint64) {
        require(_bytes.length >= _start + 8, "toUint64_outOfBounds");
        uint64 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x8), _start))
        }

        return tempUint;
    }

    function toUint96(bytes memory _bytes, uint256 _start) internal pure returns (uint96) {
        require(_bytes.length >= _start + 12, "toUint96_outOfBounds");
        uint96 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0xc), _start))
        }

        return tempUint;
    }

    function toUint128(bytes memory _bytes, uint256 _start) internal pure returns (uint128) {
        require(_bytes.length >= _start + 16, "toUint128_outOfBounds");
        uint128 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x10), _start))
        }

        return tempUint;
    }

    function toUint256(bytes memory _bytes, uint256 _start) internal pure returns (uint256) {
        require(_bytes.length >= _start + 32, "toUint256_outOfBounds");
        uint256 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x20), _start))
        }

        return tempUint;
    }

    function toBytes32(bytes memory _bytes, uint256 _start) internal pure returns (bytes32) {
        require(_bytes.length >= _start + 32, "toBytes32_outOfBounds");
        bytes32 tempBytes32;

        assembly {
            tempBytes32 := mload(add(add(_bytes, 0x20), _start))
        }

        return tempBytes32;
    }

    function equal(bytes memory _preBytes, bytes memory _postBytes) internal pure returns (bool) {
        bool success = true;

        assembly {
            let length := mload(_preBytes)

        // if lengths don't match the arrays are not equal
            switch eq(length, mload(_postBytes))
            case 1 {
            // cb is a circuit breaker in the for loop since there's
            //  no said feature for inline assembly loops
            // cb = 1 - don't breaker
            // cb = 0 - break
                let cb := 1

                let mc := add(_preBytes, 0x20)
                let end := add(mc, length)

                for {
                    let cc := add(_postBytes, 0x20)
                // the next line is the loop condition:
                // while(uint256(mc < end) + cb == 2)
                } eq(add(lt(mc, end), cb), 2) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                // if any of these checks fails then arrays are not equal
                    if iszero(eq(mload(mc), mload(cc))) {
                    // unsuccess:
                        success := 0
                        cb := 0
                    }
                }
            }
            default {
            // unsuccess:
                success := 0
            }
        }

        return success;
    }

    function equalStorage(
        bytes storage _preBytes,
        bytes memory _postBytes
    )
    internal
    view
    returns (bool)
    {
        bool success = true;

        assembly {
        // we know _preBytes_offset is 0
            let fslot := sload(_preBytes.slot)
        // Decode the length of the stored array like in concatStorage().
            let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
            let mlength := mload(_postBytes)

        // if lengths don't match the arrays are not equal
            switch eq(slength, mlength)
            case 1 {
            // slength can contain both the length and contents of the array
            // if length < 32 bytes so let's prepare for that
            // v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
                if iszero(iszero(slength)) {
                    switch lt(slength, 32)
                    case 1 {
                    // blank the last byte which is the length
                        fslot := mul(div(fslot, 0x100), 0x100)

                        if iszero(eq(fslot, mload(add(_postBytes, 0x20)))) {
                        // unsuccess:
                            success := 0
                        }
                    }
                    default {
                    // cb is a circuit breaker in the for loop since there's
                    //  no said feature for inline assembly loops
                    // cb = 1 - don't breaker
                    // cb = 0 - break
                        let cb := 1

                    // get the keccak hash to get the contents of the array
                        mstore(0x0, _preBytes.slot)
                        let sc := keccak256(0x0, 0x20)

                        let mc := add(_postBytes, 0x20)
                        let end := add(mc, mlength)

                    // the next line is the loop condition:
                    // while(uint256(mc < end) + cb == 2)
                        for {} eq(add(lt(mc, end), cb), 2) {
                            sc := add(sc, 1)
                            mc := add(mc, 0x20)
                        } {
                            if iszero(eq(sload(sc), mload(mc))) {
                            // unsuccess:
                                success := 0
                                cb := 0
                            }
                        }
                    }
                }
            }
            default {
            // unsuccess:
                success := 0
            }
        }

        return success;
    }
}

// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity >=0.7.6;

library ExcessivelySafeCall {
    uint256 constant LOW_28_MASK =
    0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff;

    /// @notice Use when you _really_ really _really_ don't trust the called
    /// contract. This prevents the called contract from causing reversion of
    /// the caller in as many ways as we can.
    /// @dev The main difference between this and a solidity low-level call is
    /// that we limit the number of bytes that the callee can cause to be
    /// copied to caller memory. This prevents stupid things like malicious
    /// contracts returning 10,000,000 bytes causing a local OOG when copying
    /// to memory.
    /// @param _target The address to call
    /// @param _gas The amount of gas to forward to the remote contract
    /// @param _maxCopy The maximum number of bytes of returndata to copy
    /// to memory.
    /// @param _calldata The data to send to the remote contract
    /// @return success and returndata, as `.call()`. Returndata is capped to
    /// `_maxCopy` bytes.
    function excessivelySafeCall(
        address _target,
        uint256 _gas,
        uint16 _maxCopy,
        bytes memory _calldata
    ) internal returns (bool, bytes memory) {
        // set up for assembly call
        uint256 _toCopy;
        bool _success;
        bytes memory _returnData = new bytes(_maxCopy);
        // dispatch message to recipient
        // by assembly calling "handle" function
        // we call via assembly to avoid memcopying a very large returndata
        // returned by a malicious contract
        assembly {
            _success := call(
            _gas, // gas
            _target, // recipient
            0, // ether value
            add(_calldata, 0x20), // inloc
            mload(_calldata), // inlen
            0, // outloc
            0 // outlen
            )
        // limit our copy to 256 bytes
            _toCopy := returndatasize()
            if gt(_toCopy, _maxCopy) {
                _toCopy := _maxCopy
            }
        // Store the length of the copied bytes
            mstore(_returnData, _toCopy)
        // copy the bytes from returndata[0:_toCopy]
            returndatacopy(add(_returnData, 0x20), 0, _toCopy)
        }
        return (_success, _returnData);
    }

    /// @notice Use when you _really_ really _really_ don't trust the called
    /// contract. This prevents the called contract from causing reversion of
    /// the caller in as many ways as we can.
    /// @dev The main difference between this and a solidity low-level call is
    /// that we limit the number of bytes that the callee can cause to be
    /// copied to caller memory. This prevents stupid things like malicious
    /// contracts returning 10,000,000 bytes causing a local OOG when copying
    /// to memory.
    /// @param _target The address to call
    /// @param _gas The amount of gas to forward to the remote contract
    /// @param _maxCopy The maximum number of bytes of returndata to copy
    /// to memory.
    /// @param _calldata The data to send to the remote contract
    /// @return success and returndata, as `.call()`. Returndata is capped to
    /// `_maxCopy` bytes.
    function excessivelySafeStaticCall(
        address _target,
        uint256 _gas,
        uint16 _maxCopy,
        bytes memory _calldata
    ) internal view returns (bool, bytes memory) {
        // set up for assembly call
        uint256 _toCopy;
        bool _success;
        bytes memory _returnData = new bytes(_maxCopy);
        // dispatch message to recipient
        // by assembly calling "handle" function
        // we call via assembly to avoid memcopying a very large returndata
        // returned by a malicious contract
        assembly {
            _success := staticcall(
            _gas, // gas
            _target, // recipient
            add(_calldata, 0x20), // inloc
            mload(_calldata), // inlen
            0, // outloc
            0 // outlen
            )
        // limit our copy to 256 bytes
            _toCopy := returndatasize()
            if gt(_toCopy, _maxCopy) {
                _toCopy := _maxCopy
            }
        // Store the length of the copied bytes
            mstore(_returnData, _toCopy)
        // copy the bytes from returndata[0:_toCopy]
            returndatacopy(add(_returnData, 0x20), 0, _toCopy)
        }
        return (_success, _returnData);
    }

    /**
     * @notice Swaps function selectors in encoded contract calls
     * @dev Allows reuse of encoded calldata for functions with identical
     * argument types but different names. It simply swaps out the first 4 bytes
     * for the new selector. This function modifies memory in place, and should
     * only be used with caution.
     * @param _newSelector The new 4-byte selector
     * @param _buf The encoded contract args
     */
    function swapSelector(bytes4 _newSelector, bytes memory _buf)
    internal
    pure
    {
        require(_buf.length >= 4);
        uint256 _mask = LOW_28_MASK;
        assembly {
        // load the first word of
            let _word := mload(add(_buf, 0x20))
        // mask out the top 4 bytes
        // /x
            _word := and(_word, _mask)
            _word := or(_newSelector, _word)
            mstore(add(_buf, 0x20), _word)
        }
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.4 <0.9.0;

interface IXERC20 {
  /**
   * @notice Emits when a lockbox is set
   *
   * @param _lockbox The address of the lockbox
   */

  event LockboxSet(address _lockbox);

  /**
   * @notice Emits when a limit is set
   *
   * @param _mintingLimit The updated minting limit we are setting to the bridge
   * @param _burningLimit The updated burning limit we are setting to the bridge
   * @param _bridge The address of the bridge we are setting the limit too
   */
  event BridgeLimitsSet(uint256 _mintingLimit, uint256 _burningLimit, address indexed _bridge);

  /**
   * @notice Reverts when a user with too low of a limit tries to call mint/burn
   */

  error IXERC20_NotHighEnoughLimits();

  /**
   * @notice Reverts when caller is not the factory
   */

  error IXERC20_NotFactory();

  struct Bridge {
    BridgeParameters minterParams;
    BridgeParameters burnerParams;
  }

  struct BridgeParameters {
    uint256 timestamp;
    uint256 ratePerSecond;
    uint256 maxLimit;
    uint256 currentLimit;
  }

  /**
   * @notice Sets the lockbox address
   *
   * @param _lockbox The address of the lockbox
   */

  function setLockbox(address _lockbox) external;

  /**
   * @notice Updates the limits of any bridge
   * @dev Can only be called by the owner
   * @param _mintingLimit The updated minting limit we are setting to the bridge
   * @param _burningLimit The updated burning limit we are setting to the bridge
   * @param _bridge The address of the bridge we are setting the limits too
   */
  function setLimits(address _bridge, uint256 _mintingLimit, uint256 _burningLimit) external;

  /**
   * @notice Returns the max limit of a minter
   *
   * @param _minter The minter we are viewing the limits of
   *  @return _limit The limit the minter has
   */
  function mintingMaxLimitOf(address _minter) external view returns (uint256 _limit);

  /**
   * @notice Returns the max limit of a bridge
   *
   * @param _bridge the bridge we are viewing the limits of
   * @return _limit The limit the bridge has
   */

  function burningMaxLimitOf(address _bridge) external view returns (uint256 _limit);

  /**
   * @notice Returns the current limit of a minter
   *
   * @param _minter The minter we are viewing the limits of
   * @return _limit The limit the minter has
   */

  function mintingCurrentLimitOf(address _minter) external view returns (uint256 _limit);

  /**
   * @notice Returns the current limit of a bridge
   *
   * @param _bridge the bridge we are viewing the limits of
   * @return _limit The limit the bridge has
   */

  function burningCurrentLimitOf(address _bridge) external view returns (uint256 _limit);

  /**
   * @notice Mints tokens for a user
   * @dev Can only be called by a minter
   * @param _user The address of the user who needs tokens minted
   * @param _amount The amount of tokens being minted
   */

  function mint(address _user, uint256 _amount) external;

  /**
   * @notice Burns tokens for a user
   * @dev Can only be called by a minter
   * @param _user The address of the user who needs tokens burned
   * @param _amount The amount of tokens being burned
   */

  function burn(address _user, uint256 _amount) external;
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.4 <0.9.0;

interface IXERC20Lockbox {
  /**
   * @notice Emitted when tokens are deposited into the lockbox
   */

  event Deposit(address _sender, uint256 _amount);

  /**
   * @notice Emitted when tokens are withdrawn from the lockbox
   */

  event Withdraw(address _sender, uint256 _amount);

  /**
   * @notice Reverts when a user tries to deposit native tokens on a non-native lockbox
   */

  error IXERC20Lockbox_NotNative();

  /**
   * @notice Reverts when a user tries to deposit non-native tokens on a native lockbox
   */

  error IXERC20Lockbox_Native();

  /**
   * @notice Reverts when a user tries to withdraw and the call fails
   */

  error IXERC20Lockbox_WithdrawFailed();

  /**
   * @notice Deposit ERC20 tokens into the lockbox
   *
   * @param _amount The amount of tokens to deposit
   */

  function deposit(uint256 _amount) external;

  /**
   * @notice Deposit ERC20 tokens into the lockbox, and send the XERC20 to a user
   *
   * @param _user The user to send the XERC20 to
   * @param _amount The amount of tokens to deposit
   */

  function depositTo(address _user, uint256 _amount) external;

  /**
   * @notice Deposit the native asset into the lockbox, and send the XERC20 to a user
   *
   * @param _user The user to send the XERC20 to
   */

  function depositNativeTo(address _user) external payable;

  /**
   * @notice Withdraw ERC20 tokens from the lockbox
   *
   * @param _amount The amount of tokens to withdraw
   */

  function withdraw(uint256 _amount) external;

  /**
   * @notice Withdraw ERC20 tokens from the lockbox
   *
   * @param _user The user to withdraw to
   * @param _amount The amount of tokens to withdraw
   */

  function withdrawTo(address _user, uint256 _amount) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "remappings": [
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "lib/forge-std:ds-test/=lib/forge-std/lib/ds-test/src/"
  ],
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"NoErrorFound","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"errorId","type":"uint256"},{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"BridgeError","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"srcChainId","type":"uint256"},{"indexed":true,"internalType":"address","name":"tokenReceiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BridgedIn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"dstChainId","type":"uint256"},{"indexed":true,"internalType":"address","name":"bridgeUser","type":"address"},{"indexed":true,"internalType":"address","name":"tokenReceiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BridgedOut","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"indexed":false,"internalType":"uint64","name":"_nonce","type":"uint64"},{"indexed":false,"internalType":"bytes","name":"_payload","type":"bytes"},{"indexed":false,"internalType":"bytes","name":"_reason","type":"bytes"}],"name":"MessageFailed","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":"uint16","name":"_srcChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"indexed":false,"internalType":"uint64","name":"_nonce","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"_payloadHash","type":"bytes32"}],"name":"RetryMessageSuccess","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"indexed":false,"internalType":"uint16","name":"_type","type":"uint16"},{"indexed":false,"internalType":"uint256","name":"_minDstGas","type":"uint256"}],"name":"SetMinDstGas","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"precrime","type":"address"}],"name":"SetPrecrime","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_path","type":"bytes"}],"name":"SetTrustedRemote","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_remoteAddress","type":"bytes"}],"name":"SetTrustedRemoteAddress","type":"event"},{"inputs":[],"name":"BIFI","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_PAYLOAD_SIZE_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_chainIds","type":"uint256[]"},{"internalType":"uint16[]","name":"_lzIds","type":"uint16[]"}],"name":"addChainIds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_dstChainId","type":"uint256"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"bridge","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_dstChainId","type":"uint256"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"bridgeCost","outputs":[{"internalType":"uint256","name":"gasCost","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"chainIdToLzId","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"errors","outputs":[{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"},{"internalType":"bytes","name":"","type":"bytes"},{"internalType":"uint64","name":"","type":"uint64"}],"name":"failedMessages","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"}],"name":"forceResumeReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"gasLimit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"},{"internalType":"uint16","name":"_chainId","type":"uint16"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"_configType","type":"uint256"}],"name":"getConfig","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_remoteChainId","type":"uint16"}],"name":"getTrustedRemoteAddress","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_bifi","type":"address"},{"internalType":"contract IXERC20","name":"_xbifi","type":"address"},{"internalType":"contract IXERC20Lockbox","name":"_lockbox","type":"address"},{"internalType":"address[]","name":"_contracts","type":"address[]"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"}],"name":"isTrustedRemote","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockbox","outputs":[{"internalType":"contract IXERC20Lockbox","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lzEndpoint","outputs":[{"internalType":"contract ILayerZeroEndpoint","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"}],"name":"lzIdToChainId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"internalType":"uint64","name":"_nonce","type":"uint64"},{"internalType":"bytes","name":"_payload","type":"bytes"}],"name":"lzReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"},{"internalType":"uint16","name":"","type":"uint16"}],"name":"minDstGasLookup","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"internalType":"uint64","name":"_nonce","type":"uint64"},{"internalType":"bytes","name":"_payload","type":"bytes"}],"name":"nonblockingLzReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"}],"name":"payloadSizeLimitLookup","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"precrime","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_errorId","type":"uint256"}],"name":"retry","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"internalType":"uint64","name":"_nonce","type":"uint64"},{"internalType":"bytes","name":"_payload","type":"bytes"}],"name":"retryMessage","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"},{"internalType":"uint16","name":"_chainId","type":"uint16"},{"internalType":"uint256","name":"_configType","type":"uint256"},{"internalType":"bytes","name":"_config","type":"bytes"}],"name":"setConfig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_gasLimit","type":"uint256"}],"name":"setGasLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"uint16","name":"_packetType","type":"uint16"},{"internalType":"uint256","name":"_minGas","type":"uint256"}],"name":"setMinDstGas","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"uint256","name":"_size","type":"uint256"}],"name":"setPayloadSizeLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_precrime","type":"address"}],"name":"setPrecrime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"}],"name":"setReceiveVersion","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"}],"name":"setSendVersion","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"internalType":"bytes","name":"_path","type":"bytes"}],"name":"setTrustedRemote","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"internalType":"bytes","name":"_remoteAddress","type":"bytes"}],"name":"setTrustedRemoteAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"}],"name":"trustedRemoteLookup","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"xBIFI","outputs":[{"internalType":"contract IXERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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