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

import { CoreSwapHandlerV1 } from "../../core/CoreSwapHandler/CoreSwapHandlerV1.sol";
import { ZeroExApiAdapter } from "../../protocols/zeroEx/ZeroExApiAdapter.sol";
import { CallUtils } from "../../tools/BubbleReverts/BubbleReverts.sol";
import { SwapDeadlineExceeded } from "../../core/libraries/DefinitiveErrors.sol";

import { BaseAccessControl, CoreAccessControlConfig } from "../../base/BaseAccessControl.sol";

contract ZeroExSwapHandler is CoreSwapHandlerV1, ZeroExApiAdapter {
    constructor(address _zeroExProxy, address _wethAddress) ZeroExApiAdapter(_zeroExProxy, _wethAddress) {}

    receive() external payable {}

    function decodeParams(bytes memory data) public pure returns (ZeroExSwapParams memory zeroExSwapParams) {
        zeroExSwapParams = abi.decode(data, (ZeroExSwapParams));
    }

    function _performSwap(SwapParams memory params) internal override {
        ZeroExSwapParams memory zeroExSwapParams = decodeParams(params.data);

        if (zeroExSwapParams.deadline < block.timestamp) {
            revert SwapDeadlineExceeded();
        }

        (bool _success, bytes memory _returnBytes) = zeroExAddress.call{ value: msg.value }(zeroExSwapParams.swapData);
        if (!_success) {
            CallUtils.revertFromReturnedData(_returnBytes);
        }
    }

    function _getSpenderAddress(bytes memory) internal view override returns (address) {
        return zeroExAddress;
    }

    // TODO (DEF-916) - Add validation
    function _validatePools(SwapParams memory params, bool) internal view override {
        // _validateZeroExPayload(
        //     params.inputAssetAddress,
        //     params.outputAssetAddress,
        //     msg.sender,
        //     params.inputAmount,
        //     params.minOutputAmount,
        //     params.data
        // );
    }

    /**
     * @notice no implementation because `_validatePools` handles both path and swap validation
     */
    function _validateSwap(SwapParams memory params) internal pure override {}
}

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

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `_msgSender()` is missing `role`.
     * Overriding this function changes the behavior of the {onlyRole} modifier.
     *
     * Format of the revert message is described in {_checkRole}.
     *
     * _Available since v4.6._
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(account),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * May emit a {RoleGranted} event.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

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

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

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

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/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/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

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

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: 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/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));
    }
}

pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

pragma solidity >=0.6.2;

import './IUniswapV2Router01.sol';

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

import { AccessControl as OZAccessControl } from "@openzeppelin/contracts/access/AccessControl.sol";
import { Strings } from "@openzeppelin/contracts/utils/Strings.sol";
import { CoreAccessControl, CoreAccessControlConfig } from "../core/CoreAccessControl/v1/CoreAccessControl.sol";
import { CoreStopGuardian } from "../core/CoreStopGuardian/v1/CoreStopGuardian.sol";

abstract contract BaseAccessControl is CoreAccessControl, CoreStopGuardian {
    /**
     * @dev
     * Modifiers inherited from CoreAccessControl:
     * onlyDefinitive
     * onlyClients
     * onlyWhitelisted
     * onlyClientAdmin
     * onlyDefinitiveAdmin
     *
     * Modifiers inherited from CoreStopGuardian:
     * stopGuarded
     */

    constructor(CoreAccessControlConfig memory coreAccessControlConfig) CoreAccessControl(coreAccessControlConfig) {}

    /**
     * @dev Inherited from CoreStopGuardian
     */
    function enableStopGuardian() public override onlyAdmins {
        return _enableStopGuardian();
    }

    /**
     * @dev Inherited from CoreStopGuardian
     */
    function disableStopGuardian() public override onlyClientAdmin {
        return _disableStopGuardian();
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

import { AccessControl as OZAccessControl } from "@openzeppelin/contracts/access/AccessControl.sol";
import { Strings } from "@openzeppelin/contracts/utils/Strings.sol";
import { ICoreAccessControlV1 } from "./ICoreAccessControlV1.sol";
import { AccountNotAdmin, AccountNotWhitelisted, AccountMissingRole } from "../../libraries/DefinitiveErrors.sol";

struct CoreAccessControlConfig {
    address admin;
    address definitiveAdmin;
    address[] definitive;
    address[] client;
}

abstract contract CoreAccessControl is ICoreAccessControlV1, OZAccessControl {
    // roles
    bytes32 public constant ROLE_DEFINITIVE = keccak256("DEFINITIVE");
    bytes32 public constant ROLE_DEFINITIVE_ADMIN = keccak256("DEFINITIVE_ADMIN");
    bytes32 public constant ROLE_CLIENT = keccak256("CLIENT");

    modifier onlyDefinitive() {
        _checkRole(ROLE_DEFINITIVE);
        _;
    }
    modifier onlyDefinitiveAdmin() {
        _checkRole(ROLE_DEFINITIVE_ADMIN);
        _;
    }
    modifier onlyClients() {
        _checkRole(ROLE_CLIENT);
        _;
    }
    modifier onlyClientAdmin() {
        _checkRole(DEFAULT_ADMIN_ROLE);
        _;
    }
    // default admin + definitive admin
    modifier onlyAdmins() {
        bool isAdmins = (hasRole(DEFAULT_ADMIN_ROLE, _msgSender()) || hasRole(ROLE_DEFINITIVE_ADMIN, _msgSender()));

        if (!isAdmins) {
            revert AccountNotAdmin(_msgSender());
        }
        _;
    }
    // client + definitive
    modifier onlyWhitelisted() {
        bool isWhitelisted = (hasRole(ROLE_CLIENT, _msgSender()) || hasRole(ROLE_DEFINITIVE, _msgSender()));

        if (!isWhitelisted) {
            revert AccountNotWhitelisted(_msgSender());
        }
        _;
    }

    constructor(CoreAccessControlConfig memory cfg) {
        // admin
        _setupRole(DEFAULT_ADMIN_ROLE, cfg.admin);

        // definitive admin
        _setupRole(ROLE_DEFINITIVE_ADMIN, cfg.definitiveAdmin);
        _setRoleAdmin(ROLE_DEFINITIVE_ADMIN, ROLE_DEFINITIVE_ADMIN);

        // definitive
        uint256 cfgDefinitiveLength = cfg.definitive.length;
        for (uint256 i; i < cfgDefinitiveLength; ) {
            _setupRole(ROLE_DEFINITIVE, cfg.definitive[i]);
            unchecked {
                ++i;
            }
        }
        _setRoleAdmin(ROLE_DEFINITIVE, ROLE_DEFINITIVE_ADMIN);

        // clients - implicit role admin is DEFAULT_ADMIN_ROLE
        uint256 cfgClientLength = cfg.client.length;
        for (uint256 i; i < cfgClientLength; ) {
            _setupRole(ROLE_CLIENT, cfg.client[i]);
            unchecked {
                ++i;
            }
        }
    }

    function _checkRole(bytes32 role, address account) internal view virtual override {
        if (!hasRole(role, account)) {
            revert AccountMissingRole(account, role);
        }
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

import { IAccessControl } from "@openzeppelin/contracts/access/IAccessControl.sol";

interface ICoreAccessControlV1 is IAccessControl {
    function ROLE_CLIENT() external returns (bytes32);

    function ROLE_DEFINITIVE() external returns (bytes32);

    function ROLE_DEFINITIVE_ADMIN() external returns (bytes32);
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

import { ICoreStopGuardianV1 } from "./ICoreStopGuardianV1.sol";

import { Context } from "@openzeppelin/contracts/utils/Context.sol";
import { StopGuardianEnabled } from "../../libraries/DefinitiveErrors.sol";

abstract contract CoreStopGuardian is ICoreStopGuardianV1, Context {
    bool public STOP_GUARDIAN_ENABLED;

    // recommended for every public/external function
    modifier stopGuarded() {
        if (STOP_GUARDIAN_ENABLED) {
            revert StopGuardianEnabled();
        }

        _;
    }

    function enableStopGuardian() public virtual;

    function disableStopGuardian() public virtual;

    function _enableStopGuardian() internal {
        STOP_GUARDIAN_ENABLED = true;
        emit StopGuardianUpdate(_msgSender(), true);
    }

    function _disableStopGuardian() internal {
        STOP_GUARDIAN_ENABLED = false;
        emit StopGuardianUpdate(_msgSender(), false);
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

interface ICoreStopGuardianV1 {
    event StopGuardianUpdate(address indexed actor, bool indexed isEnabled);

    function STOP_GUARDIAN_ENABLED() external view returns (bool);

    function enableStopGuardian() external;

    function disableStopGuardian() external;
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

import {
    InvalidAmount,
    InvalidExecutedOutputAmount,
    InvalidMsgValue,
    InvalidSwapInputAmount
} from "../libraries/DefinitiveErrors.sol";
import { DefinitiveConstants } from "../libraries/DefinitiveConstants.sol";
import { DefinitiveAssets, IERC20 } from "../libraries/DefinitiveAssets.sol";
import { Context } from "@openzeppelin/contracts/utils/Context.sol";
import { ICoreSwapHandlerV1 } from "./ICoreSwapHandlerV1.sol";
import { ReentrancyGuard } from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import { IUniswapV2Router02 } from "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol";

abstract contract CoreSwapHandlerV1 is ICoreSwapHandlerV1, Context, ReentrancyGuard {
    using DefinitiveAssets for IERC20;

    function swapCall(SwapParams calldata params) external payable nonReentrant returns (uint256, address) {
        return _swapCall(params, false /* enforceAllowedPools */);
    }

    function swapDelegate(SwapParams calldata params) external payable nonReentrant returns (uint256, address) {
        return _swapDelegate(params, false /* enforceAllowedPools */);
    }

    function swapUsingValidatedPathCall(
        SwapParams calldata params
    ) external payable nonReentrant returns (uint256, address) {
        return _swapCall(params, true /* enforceAllowedPools */);
    }

    function _swapCall(
        SwapParams memory params,
        bool enforceAllowedPools
    ) private returns (uint256 amountOut, address) {
        bool isInputAddressNativeAsset = params.inputAssetAddress == DefinitiveConstants.NATIVE_ASSET_ADDRESS;
        uint256 rawInputAmount = params.inputAmount;

        // Calls to swap native assets must provide a non-zero input amount
        if (isInputAddressNativeAsset && rawInputAmount == 0) {
            revert InvalidSwapInputAmount();
        }

        // Calls to swap native assets must match the input amount and msg.value
        if (isInputAddressNativeAsset && rawInputAmount != msg.value) {
            revert InvalidMsgValue();
        }

        // Calls to swap non-native assets must have msg.value equal to 0
        if (!isInputAddressNativeAsset && msg.value != 0) {
            revert InvalidMsgValue();
        }

        // Update SwapParams with parsed input amount
        params.inputAmount = rawInputAmount > 0 ? rawInputAmount : _getTokenAllowance(params.inputAssetAddress);

        if (params.inputAssetAddress != DefinitiveConstants.NATIVE_ASSET_ADDRESS) {
            IERC20(params.inputAssetAddress).safeTransferFrom(_msgSender(), address(this), params.inputAmount);
        }

        _validateSwap(params);
        _validatePools(params, enforceAllowedPools);

        (amountOut, ) = _swap(params);

        if (params.outputAssetAddress == DefinitiveConstants.NATIVE_ASSET_ADDRESS) {
            DefinitiveAssets.safeTransferETH(payable(_msgSender()), amountOut);
        } else {
            IERC20(params.outputAssetAddress).safeTransfer(_msgSender(), amountOut);
        }

        return (amountOut, params.outputAssetAddress);
    }

    function _swapDelegate(SwapParams memory params, bool enforceAllowedPools) private returns (uint256, address) {
        uint256 rawInputAmount = params.inputAmount;
        uint256 parsedInputAmount = rawInputAmount > 0
            ? rawInputAmount
            : DefinitiveAssets.getBalance(params.inputAssetAddress);

        if (parsedInputAmount == 0) {
            revert InvalidSwapInputAmount();
        }
        // Update SwapParams with parsed input amount
        params.inputAmount = parsedInputAmount;

        _validateSwap(params);
        _validatePools(params, enforceAllowedPools);

        return _swap(params);
    }

    /**
     * @notice This method holds the logic for performing the swap.
     * @param params SwapParams
     */
    function _performSwap(SwapParams memory params) internal virtual;

    /**
     * @notice Method to confirm that the swap is using valid pools based on our criteria
     * @param params SwapParams
     * @param enforceAllowedPools boolean to determine if we should enforce allowed pools
     */
    function _validatePools(SwapParams memory params, bool enforceAllowedPools) internal virtual;

    /**
     * @notice Method to confirm that the swap parameters are valid for the third party
     * @param params SwapParams
     */
    function _validateSwap(SwapParams memory params) internal virtual;

    /**
     * @notice When `rawInputAmount` is 0, `swapCall` will use the allowance as the input amount
     * @param inputAssetAddress asset to swap from
     */
    function _getTokenAllowance(address inputAssetAddress) private view returns (uint256) {
        uint256 allowance = IERC20(inputAssetAddress).allowance(_msgSender(), address(this));

        if (allowance == 0) {
            revert InvalidSwapInputAmount();
        }

        return allowance;
    }

    /**
     * @notice Returns the address we need to approve in order to swap assets
     * @param data included with the swap method invocation
     */
    function _getSpenderAddress(bytes memory data) internal virtual returns (address);

    /**
     * @notice Internal swap logic that performs the swap and validates the output amount
     * @param params SwapParams
     * @return output amount and output asset address
     */
    function _swap(SwapParams memory params) private returns (uint256, address) {
        if (params.inputAssetAddress != DefinitiveConstants.NATIVE_ASSET_ADDRESS) {
            IERC20(params.inputAssetAddress).resetAndSafeIncreaseAllowance(
                address(this),
                _getSpenderAddress(params.data),
                params.inputAmount
            );
        }

        uint256 outputAmountDelta = DefinitiveAssets.getBalance(params.outputAssetAddress);

        _performSwap(params);

        outputAmountDelta = DefinitiveAssets.getBalance(params.outputAssetAddress) - outputAmountDelta;

        if (outputAmountDelta < params.minOutputAmount) {
            revert InvalidExecutedOutputAmount();
        }

        emit Swap(
            _msgSender(),
            params.inputAssetAddress,
            params.inputAmount,
            params.outputAssetAddress,
            outputAmountDelta
        );

        return (outputAmountDelta, params.outputAssetAddress);
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

interface ICoreSwapHandlerV1 {
    event Swap(
        address indexed actor,
        address indexed inputToken,
        uint256 inputAmount,
        address indexed outputToken,
        uint256 outputAmount
    );

    struct SwapParams {
        address inputAssetAddress;
        uint256 inputAmount;
        address outputAssetAddress;
        uint256 minOutputAmount;
        bytes data;
        bytes signature;
    }

    function swapCall(SwapParams calldata params) external payable returns (uint256 amountOut, address outputAsset);

    function swapDelegate(SwapParams calldata params) external payable returns (uint256 amountOut, address outputAsset);

    function swapUsingValidatedPathCall(
        SwapParams calldata params
    ) external payable returns (uint256 amountOut, address outputAsset);
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

import { IERC20, SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { SafeTransferLib } from "solmate/src/utils/SafeTransferLib.sol";
import { DefinitiveConstants } from "./DefinitiveConstants.sol";

import { InsufficientBalance, InvalidAmount, InvalidAmounts, InvalidERC20Address } from "./DefinitiveErrors.sol";

/**
 * @notice Contains methods used throughout the Definitive contracts
 * @dev This file should only be used as an internal library.
 */
library DefinitiveAssets {
    /**
     * @dev Checks if an address is a valid ERC20 token
     */
    modifier onlyValidERC20(address erc20Token) {
        if (address(erc20Token) == DefinitiveConstants.NATIVE_ASSET_ADDRESS) {
            revert InvalidERC20Address();
        }
        _;
    }

    //////////////////////////////////////////////////
    //////////////////////////////////////////////////
    // ↓ ERC20 and Native Asset Methods ↓
    //////////////////////////////////////////////////

    /**
     * @dev Gets the balance of an ERC20 token or native asset
     */
    function getBalance(address assetAddress) internal view returns (uint256) {
        if (assetAddress == DefinitiveConstants.NATIVE_ASSET_ADDRESS) {
            return address(this).balance;
        } else {
            return IERC20(assetAddress).balanceOf(address(this));
        }
    }

    /**
     * @dev internal function to validate balance is higher than a given amount for ERC20 and native assets
     */
    function validateBalance(address token, uint256 amount) internal view {
        if (token == DefinitiveConstants.NATIVE_ASSET_ADDRESS) {
            validateNativeBalance(amount);
        } else {
            validateERC20Balance(token, amount);
        }
    }

    //////////////////////////////////////////////////
    //////////////////////////////////////////////////
    // ↓ Native Asset Methods ↓
    //////////////////////////////////////////////////

    /**
     * @dev validates amount and balance, then uses SafeTransferLib to transfer native asset
     */
    function safeTransferETH(address recipient, uint256 amount) internal {
        if (amount > 0) {
            SafeTransferLib.safeTransferETH(payable(recipient), amount);
        }
    }

    //////////////////////////////////////////////////
    //////////////////////////////////////////////////
    // ↓ ERC20 Methods ↓
    //////////////////////////////////////////////////

    /**
     * @dev Resets and increases the allowance of a spender for an ERC20 token
     */
    function resetAndSafeIncreaseAllowance(
        IERC20 token,
        address owner,
        address spender,
        uint256 amount
    ) internal onlyValidERC20(address(token)) {
        if (token.allowance(owner, spender) > 0) {
            SafeERC20.safeApprove(token, spender, 0);
        }

        return SafeERC20.safeIncreaseAllowance(token, spender, amount);
    }

    function safeTransfer(IERC20 token, address to, uint256 amount) internal onlyValidERC20(address(token)) {
        if (amount > 0) {
            SafeERC20.safeTransfer(token, to, amount);
        }
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 amount
    ) internal onlyValidERC20(address(token)) {
        if (amount > 0) {
            //slither-disable-next-line arbitrary-send-erc20
            SafeERC20.safeTransferFrom(token, from, to, amount);
        }
    }

    //////////////////////////////////////////////////
    //////////////////////////////////////////////////
    // ↓ Asset Amount Helper Methods ↓
    //////////////////////////////////////////////////

    /**
     * @dev internal function to validate that amounts contains a value greater than zero
     */
    function validateAmounts(uint256[] calldata amounts) internal pure {
        bool hasValidAmounts;
        uint256 amountsLength = amounts.length;
        for (uint256 i; i < amountsLength; ) {
            if (amounts[i] > 0) {
                hasValidAmounts = true;
                break;
            }
            unchecked {
                ++i;
            }
        }

        if (!hasValidAmounts) {
            revert InvalidAmounts();
        }
    }

    /**
     * @dev internal function to validate if native asset balance is higher than the amount requested
     */
    function validateNativeBalance(uint256 amount) internal view {
        if (getBalance(DefinitiveConstants.NATIVE_ASSET_ADDRESS) < amount) {
            revert InsufficientBalance();
        }
    }

    /**
     * @dev internal function to validate balance is higher than the amount requested for a token
     */
    function validateERC20Balance(address token, uint256 amount) internal view onlyValidERC20(token) {
        if (getBalance(token) < amount) {
            revert InsufficientBalance();
        }
    }

    function validateAmount(uint256 _amount) internal pure {
        if (_amount == 0) {
            revert InvalidAmount();
        }
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

/**
 * @notice Contains constants used throughout the Definitive contracts
 * @dev This file should only be used as an internal library.
 */
library DefinitiveConstants {
    /**
     * @notice Maximum fee percentage
     */
    uint256 internal constant MAX_FEE_PCT = 10000;

    /**
     * @notice Address to signify native assets
     */
    address internal constant NATIVE_ASSET_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /**
     * @notice Maximum number of swaps allowed per block
     */
    uint8 internal constant MAX_SWAPS_PER_BLOCK = 25;
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

/**
 * @notice Contains all errors used throughout the Definitive contracts
 * @dev This file should only be used as an internal library.
 * @dev When adding a new error, add alphabetically
 */

error AccountMissingRole(address _account, bytes32 _role);
error AccountNotAdmin(address);
error AccountNotWhitelisted(address);
error AddLiquidityFailed();
error EnterAllFailed();
error ExceededMaxDelta();
error ExceededMaxLTV();
error ExitAllFailed();
error ExitOneCoinFailed();
error InputGreaterThanStaked();
error InsufficientBalance();
error InsufficientSwapTokenBalance();
error InvalidAmount();
error InvalidAmounts();
error InvalidCalldata();
error InvalidERC20Address();
error InvalidExecutedOutputAmount();
error InvalidFeePercent();
error InvalidFlashLoanToken(address);
error InvalidHandler();
error InvalidInputs();
error InvalidMsgValue();
error InvalidSingleHopSwap();
error InvalidMultiHopSwap();
error InvalidOutputToken();
error InvalidRedemptionRecipient(); // Used in cross-chain redeptions
error InvalidReportedOutputAmount();
error InvalidSwapHandler();
error InvalidSwapInputAmount();
error InvalidSwapOutputToken();
error InvalidSwapPath();
error InvalidSwapPayload();
error InvalidSwapToken();
error NativeAssetWrapFailed(bool wrappingToNative);
error RemoveLiquidityFailed();
error SlippageExceeded(uint256 _outputAmount, uint256 _outputAmountMin);
error StakeFailed();
error StopGuardianEnabled();
error SwapDeadlineExceeded();
error SwapLimitExceeded();
error SwapTokenIsOutputToken();
error UnstakeFailed();
error UnauthenticatedFlashloan();
error UntrustedFlashLoanSender(address);
error SafeHarborModeEnabled();

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

import { ICoreSwapHandlerV1 } from "../../core/CoreSwapHandler/ICoreSwapHandlerV1.sol";

interface IZeroExAdapterStructs {
    struct ZeroExSwapParams {
        uint256 deadline;
        bytes swapData;
    }

    /// @dev Needed for core
    function decodeParams(bytes memory data) external pure returns (ZeroExSwapParams memory);

    struct BatchFillData {
        address inputToken;
        address outputToken;
        uint256 sellAmount;
        WrappedBatchCall[] calls;
    }

    struct WrappedBatchCall {
        bytes4 selector;
        uint256 sellAmount;
        bytes data;
    }

    struct MultiHopFillData {
        address[] tokens;
        uint256 sellAmount;
        WrappedMultiHopCall[] calls;
    }

    struct WrappedMultiHopCall {
        bytes4 selector;
        bytes data;
    }
}

interface IZeroExSwapHandler is ICoreSwapHandlerV1 {}

// SPDX-License-Identifier: Apache License
pragma solidity >=0.8.4;

import { CallUtils } from "../../tools/BubbleReverts/BubbleReverts.sol";
import { IZeroExAdapterStructs } from "../../handlers/ZeroExSwapHandler/IZeroExSwapHandler.sol";

/**
 * @title ZeroExApiAdapter
 * @author Set Protocol
 *
 * Exchange adapter for 0xAPI that returns data for swaps
 */
abstract contract ZeroExApiAdapter is IZeroExAdapterStructs {
    /* ============ State Variables ============ */

    // ETH pseudo-token address used by 0x API.
    address private constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    // Byte size of Uniswap V3 encoded path addresses and pool fees
    uint256 private constant UNISWAP_V3_PATH_ADDRESS_SIZE = 20;
    uint256 private constant UNISWAP_V3_PATH_FEE_SIZE = 3;
    // Minimum byte size of a single hop Uniswap V3 encoded path (token address + fee + token adress)
    uint256 private constant UNISWAP_V3_SINGLE_HOP_PATH_SIZE =
        UNISWAP_V3_PATH_ADDRESS_SIZE + UNISWAP_V3_PATH_FEE_SIZE + UNISWAP_V3_PATH_ADDRESS_SIZE;
    // Byte size of one hop in the Uniswap V3 encoded path (token address + fee)
    uint256 private constant UNISWAP_V3_SINGLE_HOP_OFFSET_SIZE =
        UNISWAP_V3_PATH_ADDRESS_SIZE + UNISWAP_V3_PATH_FEE_SIZE;

    // Address of the deployed ZeroEx contract.
    address public immutable zeroExAddress;
    // Address of the WETH9 contract.
    address public immutable wethAddress;

    // Returns the address to approve source tokens to for trading. This is the TokenTaker address
    address public immutable getSpender;

    /* ============ constructor ============ */

    constructor(address _zeroExAddress, address _wethAddress) {
        zeroExAddress = _zeroExAddress;
        wethAddress = _wethAddress;
        getSpender = _zeroExAddress;
    }

    /* ============ External Getter Functions ============ */

    /**
     * Return 0xAPI calldata which is already generated from 0xAPI
     *
     * @param  _sourceToken              Address of source token to be sold
     * @param  _destinationToken         Address of destination token to buy
     * @param  _destinationAddress       Address that assets should be transferred to
     * @param  _sourceQuantity           Amount of source token to sell
     * @param  _minDestinationQuantity   Min amount of destination token to buy
     * @param  _data                     Arbitrage bytes containing trade call data
     */
    // solhint-disable-next-line code-complexity
    function _validateZeroExPayload(
        address _sourceToken,
        address _destinationToken,
        address _destinationAddress,
        uint256 _sourceQuantity,
        uint256 _minDestinationQuantity,
        bytes memory _data
    ) internal view {
        address inputToken;
        address outputToken;
        address recipient;
        bool supportsRecipient;
        uint256 inputTokenAmount;
        uint256 minOutputTokenAmount;
        require(_data.length >= 4, "Invalid calldata");

        {
            bytes4 selector;
            bytes memory data;

            // solhint-disable-next-line no-inline-assembly
            assembly {
                selector := mload(add(_data, 0x20)) // Load the first 4 bytes
                let dataLength := sub(mload(_data), 4) // Calculate the length of the data
                data := mload(0x40) // Get the free memory pointer
                mstore(0x40, add(data, add(dataLength, 0x20))) // Update the free memory pointer
                mstore(data, dataLength) // Store the length of the data at the beginning of the data memory
                // Copy the data (excluding the selector) to the allocated memory
                mstore(add(data, 0x20), shr(32, mload(add(_data, 0x24))))
            }
            if (selector == 0x415565b0) {
                // transformERC20()
                (inputToken, outputToken, inputTokenAmount, minOutputTokenAmount) = abi.decode(
                    data,
                    (address, address, uint256, uint256)
                );
            } else if (selector == 0xf7fcd384) {
                // sellToLiquidityProvider()
                (inputToken, outputToken, , recipient, inputTokenAmount, minOutputTokenAmount) = abi.decode(
                    data,
                    (address, address, address, address, uint256, uint256)
                );
                supportsRecipient = true;
                if (recipient == address(0)) {
                    recipient = _destinationAddress;
                }
            } else if (selector == 0xd9627aa4) {
                // sellToUniswap()
                address[] memory path;
                (path, inputTokenAmount, minOutputTokenAmount) = abi.decode(data, (address[], uint256, uint256));
                require(path.length > 1, "Uniswap token path too short");
                inputToken = path[0];
                outputToken = path[path.length - 1];
            } else if (selector == 0xafc6728e) {
                // batchFill()
                BatchFillData memory fillData;
                (fillData, minOutputTokenAmount) = abi.decode(data, (BatchFillData, uint256));
                inputToken = fillData.inputToken;
                outputToken = fillData.outputToken;
                inputTokenAmount = fillData.sellAmount;
            } else if (selector == 0x21c184b6) {
                // multiHopFill()
                MultiHopFillData memory fillData;
                (fillData, minOutputTokenAmount) = abi.decode(data, (MultiHopFillData, uint256));
                require(fillData.tokens.length > 1, "Multihop token path too short");
                inputToken = fillData.tokens[0];
                outputToken = fillData.tokens[fillData.tokens.length - 1];
                inputTokenAmount = fillData.sellAmount;
            } else if (selector == 0x6af479b2) {
                // sellTokenForTokenToUniswapV3()
                bytes memory encodedPath;
                (encodedPath, inputTokenAmount, minOutputTokenAmount, recipient) = abi.decode(
                    data,
                    (bytes, uint256, uint256, address)
                );
                supportsRecipient = true;
                if (recipient == address(0)) {
                    recipient = _destinationAddress;
                }
                (inputToken, outputToken) = _decodeTokensFromUniswapV3EncodedPath(encodedPath);
            } else if (selector == 0x803ba26d) {
                // sellTokenForEthToUniswapV3()
                bytes memory encodedPath;
                (encodedPath, inputTokenAmount, minOutputTokenAmount, recipient) = abi.decode(
                    data,
                    (bytes, uint256, uint256, address)
                );
                supportsRecipient = true;
                if (recipient == address(0)) {
                    recipient = _destinationAddress;
                }
                (inputToken, outputToken) = _decodeTokensFromUniswapV3EncodedPath(encodedPath);
                require(outputToken == wethAddress, "Last token must be WETH");
                outputToken = ETH_ADDRESS;
            } else if (selector == 0x3598d8ab) {
                // sellEthForTokenToUniswapV3()
                inputTokenAmount = _sourceQuantity;
                bytes memory encodedPath;
                (encodedPath, minOutputTokenAmount, recipient) = abi.decode(data, (bytes, uint256, address));
                supportsRecipient = true;
                if (recipient == address(0)) {
                    recipient = _destinationAddress;
                }
                (inputToken, outputToken) = _decodeTokensFromUniswapV3EncodedPath(encodedPath);
                require(inputToken == wethAddress, "First token must be WETH");
                inputToken = ETH_ADDRESS;
            } else {
                revert("Unsupported 0xAPI function selector");
            }
        }

        require(inputToken == _sourceToken, "Mismatched input token");
        require(outputToken == _destinationToken, "Mismatched output token");
        require(!supportsRecipient || recipient == _destinationAddress, "Mismatched recipient");
        require(inputTokenAmount == _sourceQuantity, "Mismatched input token quantity");
        require(minOutputTokenAmount >= _minDestinationQuantity, "Mismatched output token quantity");
    }

    // Decode input and output tokens from an arbitrary length encoded Uniswap V3 path
    function _decodeTokensFromUniswapV3EncodedPath(
        bytes memory encodedPath
    ) private pure returns (address inputToken, address outputToken) {
        require(encodedPath.length >= UNISWAP_V3_SINGLE_HOP_PATH_SIZE, "UniswapV3 token path too short");
        // UniswapV3 paths are packed encoded as (address(token0), uint24(fee), address(token1), [...])
        // We want the first and last token.
        uint256 numHops = (encodedPath.length - UNISWAP_V3_PATH_ADDRESS_SIZE) / UNISWAP_V3_SINGLE_HOP_OFFSET_SIZE;
        uint256 lastTokenOffset = numHops * UNISWAP_V3_SINGLE_HOP_OFFSET_SIZE;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let p := add(encodedPath, 32)
            inputToken := shr(96, mload(p))
            p := add(p, lastTokenOffset)
            outputToken := shr(96, mload(p))
        }
    }
}

// SPDX-License-Identifier: AGPLv3
pragma solidity >=0.8.18;

import { InvalidCalldata } from "../../core/libraries/DefinitiveErrors.sol";

/**
 * @title Call utilities library that is absent from the OpenZeppelin
 * @author Superfluid
 * Forked from
 * https://github.com/superfluid-finance/protocol-monorepo/blob
 * /d473b4876a689efb3bbb05552040bafde364a8b2/packages/ethereum-contracts/contracts/libs/CallUtils.sol
 * (Separated by 2 lines to prevent going over 120 character per line limit)
 */
library CallUtils {
    /// @dev Bubble up the revert from the returnedData (supports Panic, Error & Custom Errors)
    /// @notice This is needed in order to provide some human-readable revert message from a call
    /// @param returnedData Response of the call
    function revertFromReturnedData(bytes memory returnedData) internal pure {
        if (returnedData.length < 4) {
            // case 1: catch all
            revert("CallUtils: target revert()");
        } else {
            bytes4 errorSelector;
            // solhint-disable-next-line no-inline-assembly
            assembly {
                errorSelector := mload(add(returnedData, 0x20))
            }
            if (errorSelector == bytes4(0x4e487b71) /* `seth sig "Panic(uint256)"` */) {
                // case 2: Panic(uint256) (Defined since 0.8.0)
                // solhint-disable-next-line max-line-length
                // ref: https://docs.soliditylang.org/en/v0.8.0/control-structures.html#panic-via-assert-and-error-via-require)
                string memory reason = "CallUtils: target panicked: 0x__";
                uint errorCode;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    errorCode := mload(add(returnedData, 0x24))
                    let reasonWord := mload(add(reason, 0x20))
                    // [0..9] is converted to ['0'..'9']
                    // [0xa..0xf] is not correctly converted to ['a'..'f']
                    // but since panic code doesn't have those cases, we will ignore them for now!
                    let e1 := add(and(errorCode, 0xf), 0x30)
                    let e2 := shl(8, add(shr(4, and(errorCode, 0xf0)), 0x30))
                    reasonWord := or(
                        and(reasonWord, 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0000),
                        or(e2, e1)
                    )
                    mstore(add(reason, 0x20), reasonWord)
                }
                revert(reason);
            } else {
                // case 3: Error(string) (Defined at least since 0.7.0)
                // case 4: Custom errors (Defined since 0.8.0)
                uint len = returnedData.length;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    revert(add(returnedData, 32), len)
                }
            }
        }
    }

    /**
     * @dev Helper method to parse data and extract the method signature (selector).
     *
     * Copied from: https://github.com/argentlabs/argent-contracts/
     * blob/master/contracts/modules/common/Utils.sol#L54-L60
     */
    function parseSelector(bytes memory callData) internal pure returns (bytes4 selector) {
        if (callData.length < 4) {
            revert InvalidCalldata();
        }
        // solhint-disable-next-line no-inline-assembly
        assembly {
            selector := mload(add(callData, 0x20))
        }
    }

    /**
     * @dev Pad length to 32 bytes word boundary
     */
    function padLength32(uint256 len) internal pure returns (uint256 paddedLen) {
        return ((len / 32) + (((len & 31) > 0) /* rounding? */ ? 1 : 0)) * 32;
    }

    /**
     * @dev Validate if the data is encoded correctly with abi.encode(bytesData)
     *
     * Expected ABI Encode Layout:
     * | word 1      | word 2           | word 3           | the rest...
     * | data length | bytesData offset | bytesData length | bytesData + padLength32 zeros |
     */
    function isValidAbiEncodedBytes(bytes memory data) internal pure returns (bool) {
        if (data.length < 64) return false;
        uint bytesOffset;
        uint bytesLen;
        // bytes offset is always expected to be 32
        // solhint-disable-next-line no-inline-assembly
        assembly {
            bytesOffset := mload(add(data, 32))
        }
        if (bytesOffset != 32) return false;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            bytesLen := mload(add(data, 64))
        }
        // the data length should be bytesData.length + 64 + padded bytes length
        return data.length == 64 + padLength32(bytesLen);
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

import {ERC20} from "../tokens/ERC20.sol";

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.
/// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller.
library SafeTransferLib {
    /*//////////////////////////////////////////////////////////////
                             ETH OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferETH(address to, uint256 amount) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Transfer the ETH and store if it succeeded or not.
            success := call(gas(), to, amount, 0, 0, 0, 0)
        }

        require(success, "ETH_TRANSFER_FAILED");
    }

    /*//////////////////////////////////////////////////////////////
                            ERC20 OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferFrom(
        ERC20 token,
        address from,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), from) // Append the "from" argument.
            mstore(add(freeMemoryPointer, 36), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 100, 0, 32)
            )
        }

        require(success, "TRANSFER_FROM_FAILED");
    }

    function safeTransfer(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        require(success, "TRANSFER_FAILED");
    }

    function safeApprove(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        require(success, "APPROVE_FAILED");
    }
}

{
  "metadata": {
    "bytecodeHash": "none"
  },
  "optimizer": {
    "enabled": true,
    "runs": 850
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_zeroExProxy","type":"address"},{"internalType":"address","name":"_wethAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"InvalidERC20Address","type":"error"},{"inputs":[],"name":"InvalidExecutedOutputAmount","type":"error"},{"inputs":[],"name":"InvalidMsgValue","type":"error"},{"inputs":[],"name":"InvalidSwapInputAmount","type":"error"},{"inputs":[],"name":"SwapDeadlineExceeded","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"actor","type":"address"},{"indexed":true,"internalType":"address","name":"inputToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"inputAmount","type":"uint256"},{"indexed":true,"internalType":"address","name":"outputToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"outputAmount","type":"uint256"}],"name":"Swap","type":"event"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"decodeParams","outputs":[{"components":[{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bytes","name":"swapData","type":"bytes"}],"internalType":"struct IZeroExAdapterStructs.ZeroExSwapParams","name":"zeroExSwapParams","type":"tuple"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getSpender","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"inputAssetAddress","type":"address"},{"internalType":"uint256","name":"inputAmount","type":"uint256"},{"internalType":"address","name":"outputAssetAddress","type":"address"},{"internalType":"uint256","name":"minOutputAmount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct ICoreSwapHandlerV1.SwapParams","name":"params","type":"tuple"}],"name":"swapCall","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"inputAssetAddress","type":"address"},{"internalType":"uint256","name":"inputAmount","type":"uint256"},{"internalType":"address","name":"outputAssetAddress","type":"address"},{"internalType":"uint256","name":"minOutputAmount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct ICoreSwapHandlerV1.SwapParams","name":"params","type":"tuple"}],"name":"swapDelegate","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"inputAssetAddress","type":"address"},{"internalType":"uint256","name":"inputAmount","type":"uint256"},{"internalType":"address","name":"outputAssetAddress","type":"address"},{"internalType":"uint256","name":"minOutputAmount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct ICoreSwapHandlerV1.SwapParams","name":"params","type":"tuple"}],"name":"swapUsingValidatedPathCall","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"wethAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"zeroExAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000def1c0ded9bec7f1a1670819833240f027b25eff000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2

-----Decoded View---------------
Arg [0] : _zeroExProxy (address): 0xDef1C0ded9bec7F1a1670819833240f027b25EfF
Arg [1] : _wethAddress (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000def1c0ded9bec7f1a1670819833240f027b25eff
Arg [1] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2