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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {ReentrancyGuard} from "@routerprotocol/intents-core/contracts/utils/ReentrancyGuard.sol";
import {Basic} from "@routerprotocol/intents-core/contracts/common/Basic.sol";
import {NitroMessageHandler} from "@routerprotocol/intents-core/contracts/utils/NitroMessageHandler.sol";
import {CallLib} from "@routerprotocol/intents-core/contracts/utils/CallLib.sol";
import {IERC20, SafeERC20} from "@routerprotocol/intents-core/contracts/utils/SafeERC20.sol";
import {Errors} from "@routerprotocol/intents-core/contracts/utils/Errors.sol";
import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
import {EoaExecutorWithDataProvider, EoaExecutorWithoutDataProvider} from "@routerprotocol/intents-core/contracts/RouterIntentEoaAdapter.sol";
import {BaseAdapter} from "@routerprotocol/intents-core/contracts/BaseAdapter.sol";

/**
 * @title BatchTransaction
 * @author Shivam Agrawal
 * @notice Batch Transaction Contract for EOAs.
 */
contract BatchTransaction is
    Basic,
    NitroMessageHandler,
    AccessControl,
    ReentrancyGuard
{
    using SafeERC20 for IERC20;

    struct RefundData {
        address[] tokens;
    }

    bytes32 public constant SETTER_ROLE = keccak256("SETTER_ROLE");

    address private immutable _native;
    address private immutable _wnative;

    // user -> token array
    mapping(address => RefundData) private tokensToRefund;
    mapping(address => bool) private adapterWhitelist;

    event OperationFailedRefundEvent(
        address token,
        address recipient,
        uint256 amount
    );
    event OperationSuccessful();

    constructor(
        address __native,
        address __wnative,
        address __assetForwarder,
        address __dexspan
    ) NitroMessageHandler(__assetForwarder, __dexspan) {
        _native = __native;
        _wnative = __wnative;

        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(SETTER_ROLE, msg.sender);
    }

    /**
     * @notice function to return the address of WNative token.
     */
    function wnative() public view virtual override returns (address) {
        return _wnative;
    }

    /**
     * @notice function to return the address of Native token.
     */
    function native() public view virtual override returns (address) {
        return _native;
    }

    /**
     * @notice function to check whether an adapter is whitelisted.
     * @param adapter Address of the adapter.
     */
    function isAdapterWhitelisted(address adapter) public view returns (bool) {
        return adapterWhitelist[adapter];
    }

    /**
     * @notice function to set adapter whitelist.
     * @param adapters Addresses of the adapters.
     * @param shouldWhitelist Boolean array suggesting whether to whitelist the adapters.
     */
    function setAdapterWhitelist(
        address[] memory adapters,
        bool[] memory shouldWhitelist
    ) external onlyRole(SETTER_ROLE) {
        uint256 len = adapters.length;

        require(
            len != 0 && len == shouldWhitelist.length,
            Errors.ARRAY_LENGTH_MISMATCH
        );

        for (uint i = 0; i < len; ) {
            adapterWhitelist[adapters[i]] = shouldWhitelist[i];
            unchecked {
                ++i;
            }
        }
    }

    /**
     * @dev function to execute batch calls on the same chain
     * @param tokens Addresses of the tokens to fetch from the user
     * @param amounts amounts of the tokens to fetch from the user
     * @param target Addresses of the contracts to call
     * @param value Amounts of native tokens to send along with the transactions
     * @param callType Type of call. 1: call, 2: delegatecall
     * @param data Data of the transactions
     */
    function executeBatchCallsSameChain(
        address[] calldata tokens,
        uint256[] calldata amounts,
        address[] calldata target,
        uint256[] calldata value,
        uint256[] calldata callType,
        bytes[] calldata data
    ) external payable {
        uint256 tokensLength = tokens.length;
        require(tokensLength == amounts.length, Errors.ARRAY_LENGTH_MISMATCH);
        uint256 totalValue = 0;

        for (uint256 i = 0; i < tokensLength; ) {
            totalValue += _pullTokens(tokens[i], amounts[i]);
            tokensToRefund[msg.sender].tokens.push(tokens[i]);

            unchecked {
                ++i;
            }
        }

        require(
            msg.value >= totalValue,
            Errors.INSUFFICIENT_NATIVE_FUNDS_PASSED
        );

        for (uint256 i = 0; i < callType.length; ) {
            // callType can be either 1 or 2
            require(callType[i] < 3, Errors.INVALID_CALL_TYPE);
            unchecked {
                ++i;
            }
        }

        _executeBatchCalls(msg.sender, target, value, callType, data);
    }

    /**
     * @dev function to execute batch calls
     * @param refundRecipient Address of recipient of refunds of dust at the end
     * @param target Addresses of the contracts to call
     * @param value Amounts of native tokens to send along with the transactions
     * @param data Data of the transactions
     * @param callType Type of call. 1: call, 2: delegatecall
     */
    function executeBatchCallsDestChain(
        address refundRecipient,
        address[] calldata target,
        uint256[] calldata value,
        uint256[] calldata callType,
        bytes[] calldata data
    ) external payable {
        require(msg.sender == address(this), Errors.ONLY_SELF);

        _executeBatchCalls(refundRecipient, target, value, callType, data);
    }

    /**
     * @dev function to execute batch calls
     * @param target Addresses of the contracts to call
     * @param value Amounts of native tokens to send along with the transactions
     * @param data Data of the transactions
     * @param callType Type of call. 1: call, 2: delegatecall
     */
    function _executeBatchCalls(
        address refundRecipient,
        address[] calldata target,
        uint256[] calldata value,
        uint256[] calldata callType,
        bytes[] calldata data
    ) internal {
        uint256 targetLength = target.length;

        require(
            targetLength != 0 &&
                targetLength == value.length &&
                value.length == data.length &&
                data.length == callType.length,
            Errors.WRONG_BATCH_PROVIDED
        );

        if (target.length == 1) {
            _execute(
                refundRecipient,
                target[0],
                address(0),
                address(0),
                value[0],
                callType[0],
                data[0]
            );
        } else {
            _execute(
                refundRecipient,
                target[0],
                address(0),
                target[1],
                value[0],
                callType[0],
                data[0]
            );

            for (uint256 i = 1; i < targetLength; ) {
                if (i != targetLength - 1) {
                    _execute(
                        refundRecipient,
                        target[i],
                        target[i - 1],
                        target[i + 1],
                        value[i],
                        callType[i],
                        data[i]
                    );
                } else {
                    _execute(
                        refundRecipient,
                        target[i],
                        target[i - 1],
                        address(0),
                        value[i],
                        callType[i],
                        data[i]
                    );
                }

                unchecked {
                    ++i;
                }
            }
        }

        processRefunds(refundRecipient);
    }

    function _pullTokens(
        address token,
        uint256 amount
    ) internal returns (uint256) {
        uint256 totalValue = 0;
        if (token == native()) {
            totalValue += amount;
        } else {
            IERC20(token).safeTransferFrom(msg.sender, address(this), amount);
        }

        return totalValue;
    }

    function _execute(
        address refundRecipient,
        address target,
        address precedingAdapter,
        address succeedingAdapter,
        uint256 value,
        uint256 callType,
        bytes memory data
    ) internal {
        require(adapterWhitelist[target], Errors.ADAPTER_NOT_WHITELISTED);

        bytes memory _calldata;
        if (address(BaseAdapter(target).adapterDataProvider()) == address(0)) {
            _calldata = abi.encodeWithSelector(
                EoaExecutorWithoutDataProvider.execute.selector,
                data
            );
        } else {
            _calldata = abi.encodeWithSelector(
                EoaExecutorWithDataProvider.execute.selector,
                precedingAdapter,
                succeedingAdapter,
                data
            );
        }

        bytes memory result;
        if (callType == 1) result = CallLib._call(target, value, _calldata);
        else if (callType == 2)
            result = CallLib._delegateCall(target, _calldata);

        if (result.length != 0) processResult(refundRecipient, result);
    }

    function processResult(address user, bytes memory data) internal {
        address[] memory tokens = abi.decode(data, (address[]));

        for (uint256 i = 0; i < tokens.length; ) {
            tokensToRefund[user].tokens.push(tokens[i]);

            unchecked {
                ++i;
            }
        }
    }

    function processRefunds(address user) internal {
        uint256 len = tokensToRefund[user].tokens.length;

        for (uint256 i = 0; i < len; ) {
            withdrawTokens(
                tokensToRefund[user].tokens[i],
                user,
                type(uint256).max
            );

            unchecked {
                ++i;
            }
        }

        delete tokensToRefund[user];
    }

    /**
     * @inheritdoc NitroMessageHandler
     */
    function handleMessage(
        address tokenSent,
        uint256 amount,
        bytes memory instruction
    ) external override onlyNitro nonReentrant {
        (
            address refundAddress,
            address[] memory target,
            uint256[] memory value,
            uint256[] memory callType,
            bytes[] memory data
        ) = abi.decode(
                instruction,
                (address, address[], uint256[], uint256[], bytes[])
            );

        for (uint256 i = 0; i < callType.length; ) {
            if (callType[i] > 2) {
                withdrawTokens(tokenSent, refundAddress, amount);
                emit OperationFailedRefundEvent(
                    tokenSent,
                    refundAddress,
                    amount
                );

                return;
            }
            unchecked {
                ++i;
            }
        }

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, ) = address(this).call(
            abi.encodeWithSelector(
                this.executeBatchCallsDestChain.selector,
                refundAddress,
                target,
                value,
                callType,
                data
            )
        );

        if (success) {
            emit OperationSuccessful();
        } else {
            withdrawTokens(tokenSent, refundAddress, amount);
            emit OperationFailedRefundEvent(tokenSent, refundAddress, amount);
        }
    }

    // solhint-disable-next-line no-empty-blocks
    receive() external payable {}
}

// 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 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));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {IAdapterDataProvider} from "./interfaces/IAdapterDataProvider.sol";

/**
 * @title AdapterDataProvider
 * @author Router Protocol
 * @notice This contract serves as the data provider for an intent adapter based on Router
 * Cross-Chain Intent Framework.
 */
contract AdapterDataProvider is IAdapterDataProvider {
    address private _owner;
    mapping(address => bool) private _headRegistry;
    mapping(address => bool) private _tailRegistry;
    mapping(address => bool) private _inboundAssetRegistry;
    mapping(address => bool) private _outboundAssetRegistry;

    constructor(address __owner) {
        _owner = __owner;
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function owner() external view returns (address) {
        return _owner;
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function setOwner(address __owner) external onlyOwner {
        _owner = __owner;
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function isAuthorizedPrecedingContract(
        address precedingContract
    ) external view returns (bool) {
        if (precedingContract == address(0)) return true;
        return _headRegistry[precedingContract];
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function isAuthorizedSucceedingContract(
        address succeedingContract
    ) external view returns (bool) {
        if (succeedingContract == address(0)) return true;
        return _tailRegistry[succeedingContract];
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function isValidInboundAsset(address asset) external view returns (bool) {
        return _inboundAssetRegistry[asset];
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function isValidOutboundAsset(address asset) external view returns (bool) {
        return _outboundAssetRegistry[asset];
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function setPrecedingContract(
        address precedingContract,
        bool isValid
    ) external onlyOwner {
        _headRegistry[precedingContract] = isValid;
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function setSucceedingContract(
        address succeedingContract,
        bool isValid
    ) external onlyOwner {
        _tailRegistry[succeedingContract] = isValid;
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function setInboundAsset(address asset, bool isValid) external onlyOwner {
        _inboundAssetRegistry[asset] = isValid;
    }

    /**
     * @inheritdoc IAdapterDataProvider
     */
    function setOutboundAsset(address asset, bool isValid) external onlyOwner {
        _outboundAssetRegistry[asset] = isValid;
    }

    /**
     * @notice modifier to ensure that only owner can call this function
     */
    modifier onlyOwner() {
        _onlyOwner();
        _;
    }

    function _onlyOwner() private view {
        require(msg.sender == _owner, "Only owner");
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {Basic} from "./common/Basic.sol";
import {Errors} from "./utils/Errors.sol";
import {ReentrancyGuard} from "./utils/ReentrancyGuard.sol";
import {AdapterDataProvider} from "./AdapterDataProvider.sol";

/**
 * @title BaseAdapter
 * @author Router Protocol
 * @notice This contract is the base implementation of an intent adapter based on Router
 * Cross-Chain Intent Framework.
 */
abstract contract BaseAdapter is Basic, ReentrancyGuard {
    address private immutable _self;
    address private immutable _native;
    address private immutable _wnative;
    AdapterDataProvider private immutable _adapterDataProvider;

    event ExecutionEvent(string indexed adapterName, bytes data);
    event OperationFailedRefundEvent(
        address token,
        address recipient,
        uint256 amount
    );
    event UnsupportedOperation(
        address token,
        address refundAddress,
        uint256 amount
    );

    constructor(
        address __native,
        address __wnative,
        bool __deployDataProvider,
        address __owner
    ) {
        _self = address(this);
        _native = __native;
        _wnative = __wnative;

        AdapterDataProvider dataProvider;

        if (__deployDataProvider)
            dataProvider = new AdapterDataProvider(__owner);
        else dataProvider = AdapterDataProvider(address(0));

        _adapterDataProvider = dataProvider;
    }

    /**
     * @dev function to get the address of weth
     */
    function wnative() public view override returns (address) {
        return _wnative;
    }

    /**
     * @dev function to get the address of native token
     */
    function native() public view override returns (address) {
        return _native;
    }

    /**
     * @dev function to get the AdapterDataProvider instance for this contract
     */
    function adapterDataProvider() public view returns (AdapterDataProvider) {
        return _adapterDataProvider;
    }

    /**
     * @dev Function to check whether the contract is a valid preceding contract registered in
     * the head registry.
     * @dev This registry governs the initiation of the adapter, exclusively listing authorized
     * preceding adapters.
     * @notice Only the adapters documented in this registry can invoke the current adapter,
     * thereby guaranteeing regulated and secure execution sequences.
     * @param precedingContract Address of preceding contract.
     * @return true if valid, false if invalid.
     */
    function isAuthorizedPrecedingContract(
        address precedingContract
    ) public view returns (bool) {
        return
            _adapterDataProvider.isAuthorizedPrecedingContract(
                precedingContract
            );
    }

    /**
     * @dev Function to check whether the contract is a valid succeeding contract registered in
     * the tail registry.
     * @dev This registry dictates the potential succeeding actions by listing adapters that
     * may be invoked following the current one.
     * @notice Only the adapters documented in this registry can be invoked by the current adapter,
     * thereby guaranteeing regulated and secure execution sequences.
     * @param succeedingContract Address of succeeding contract.
     * @return true if valid, false if invalid.
     */
    function isAuthorizedSucceedingContract(
        address succeedingContract
    ) public view returns (bool) {
        return
            _adapterDataProvider.isAuthorizedSucceedingContract(
                succeedingContract
            );
    }

    /**
     * @dev Function to check whether the asset is a valid inbound asset registered in the inbound
     * asset registry.
     * @dev This registry keeps track of all the acceptable incoming assets, ensuring that the
     * adapter only processes predefined asset types.
     * @param asset Address of the asset.
     * @return true if valid, false if invalid.
     */
    function isValidInboundAsset(address asset) public view returns (bool) {
        return _adapterDataProvider.isValidInboundAsset(asset);
    }

    /**
     * @dev Function to check whether the asset is a valid outbound asset registered in the outbound
     * asset registry.
     * @dev It manages the types of assets that the adapter is allowed to output, thus controlling
     * the flow’s output and maintaining consistency.
     * @param asset Address of the asset.
     * @return true if valid, false if invalid.
     */
    function isValidOutboundAsset(address asset) public view returns (bool) {
        return _adapterDataProvider.isValidOutboundAsset(asset);
    }

    /**
     * @dev function to get the name of the adapter
     */
    function name() public view virtual returns (string memory);

    /**
     * @dev function to get the address of the contract
     */
    function self() public view returns (address) {
        return _self;
    }
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {TokenInterface} from "./Interfaces.sol";
import {TokenUtilsBase} from "./TokenUtilsBase.sol";

abstract contract Basic is TokenUtilsBase {
    function getTokenBal(address token) internal view returns (uint _amt) {
        _amt = address(token) == native()
            ? address(this).balance
            : TokenInterface(token).balanceOf(address(this));
    }

    function approve(address token, address spender, uint256 amount) internal {
        // solhint-disable-next-line no-empty-blocks
        try TokenInterface(token).approve(spender, amount) {} catch {
            TokenInterface(token).approve(spender, 0);
            TokenInterface(token).approve(spender, amount);
        }
    }

    function convertNativeToWnative(uint amount) internal {
        TokenInterface(wnative()).deposit{value: amount}();
    }

    function convertWnativeToNative(uint amount) internal {
        TokenInterface(wnative()).withdraw(amount);
    }
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

interface TokenInterface {
    function approve(address, uint256) external;

    function transfer(address, uint) external;

    function transferFrom(address, address, uint) external;

    function deposit() external payable;

    function withdraw(uint) external;

    function balanceOf(address) external view returns (uint);

    function decimals() external view returns (uint);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {IWETH} from "../interfaces/IWETH.sol";
import {SafeERC20, IERC20} from "../utils/SafeERC20.sol";

abstract contract TokenUtilsBase {
    using SafeERC20 for IERC20;

    function wnative() public view virtual returns (address);

    function native() public view virtual returns (address);

    function approveToken(
        address _tokenAddr,
        address _to,
        uint256 _amount
    ) internal {
        if (_tokenAddr == native()) return;

        if (IERC20(_tokenAddr).allowance(address(this), _to) < _amount) {
            IERC20(_tokenAddr).safeApprove(_to, _amount);
        }
    }

    function pullTokensIfNeeded(
        address _token,
        address _from,
        uint256 _amount
    ) internal returns (uint256) {
        // handle max uint amount
        if (_amount == type(uint256).max) {
            _amount = getBalance(_token, _from);
        }

        if (
            _from != address(0) &&
            _from != address(this) &&
            _token != native() &&
            _amount != 0
        ) {
            IERC20(_token).safeTransferFrom(_from, address(this), _amount);
        }

        return _amount;
    }

    function withdrawTokens(
        address _token,
        address _to,
        uint256 _amount
    ) internal returns (uint256) {
        if (_amount == type(uint256).max) {
            _amount = getBalance(_token, address(this));
        }

        if (_to != address(0) && _to != address(this) && _amount != 0) {
            if (_token != native()) {
                IERC20(_token).safeTransfer(_to, _amount);
            } else {
                (bool success, ) = _to.call{value: _amount}("");
                require(success, "native send fail");
            }
        }

        return _amount;
    }

    function depositWnative(uint256 _amount) internal {
        IWETH(wnative()).deposit{value: _amount}();
    }

    function withdrawWnative(uint256 _amount) internal {
        IWETH(wnative()).withdraw(_amount);
    }

    function getBalance(
        address _tokenAddr,
        address _acc
    ) internal view returns (uint256) {
        if (_tokenAddr == native()) {
            return _acc.balance;
        } else {
            return IERC20(_tokenAddr).balanceOf(_acc);
        }
    }

    function getTokenDecimals(address _token) internal view returns (uint256) {
        if (_token == native()) return 18;

        return IERC20(_token).decimals();
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

/**
 * @title Interface for Adapter Data Provider contract for intent adapter.
 * @author Router Protocol.
 */

interface IAdapterDataProvider {
    /**
     * @dev Function to get the address of owner.
     */
    function owner() external view returns (address);

    /**
     * @dev Function to set the address of owner.
     * @dev This function can only be called by the owner of this contract.
     * @param __owner Address of the new owner
     */
    function setOwner(address __owner) external;

    /**
     * @dev Function to check whether the contract is a valid preceding contract registered in
     * the head registry.
     * @dev This registry governs the initiation of the adapter, exclusively listing authorized
     * preceding adapters.
     * @notice Only the adapters documented in this registry can invoke the current adapter,
     * thereby guaranteeing regulated and secure execution sequences.
     * @param precedingContract Address of preceding contract.
     * @return true if valid, false if invalid.
     */
    function isAuthorizedPrecedingContract(
        address precedingContract
    ) external view returns (bool);

    /**
     * @dev Function to check whether the contract is a valid succeeding contract registered in
     * the tail registry.
     * @dev This registry dictates the potential succeeding actions by listing adapters that
     * may be invoked following the current one.
     * @notice Only the adapters documented in this registry can be invoked by the current adapter,
     * thereby guaranteeing regulated and secure execution sequences.
     * @param succeedingContract Address of succeeding contract.
     * @return true if valid, false if invalid.
     */
    function isAuthorizedSucceedingContract(
        address succeedingContract
    ) external view returns (bool);

    /**
     * @dev Function to check whether the asset is a valid inbound asset registered in the inbound
     * asset registry.
     * @dev This registry keeps track of all the acceptable incoming assets, ensuring that the
     * adapter only processes predefined asset types.
     * @param asset Address of the asset.
     * @return true if valid, false if invalid.
     */
    function isValidInboundAsset(address asset) external view returns (bool);

    /**
     * @dev Function to check whether the asset is a valid outbound asset registered in the outbound
     * asset registry.
     * @dev It manages the types of assets that the adapter is allowed to output, thus controlling
     * the flow’s output and maintaining consistency.
     * @param asset Address of the asset.
     * @return true if valid, false if invalid.
     */
    function isValidOutboundAsset(address asset) external view returns (bool);

    /**
     * @dev Function to set preceding contract (head registry) for the adapter.
     * @dev This registry governs the initiation of the adapter, exclusively listing authorized
     * preceding adapters.
     * @notice Only the adapters documented in this registry can invoke the current adapter,
     * thereby guaranteeing regulated and secure execution sequences.
     * @param precedingContract Address of preceding contract.
     * @param isValid Boolean value suggesting if this is a valid preceding contract.
     */
    function setPrecedingContract(
        address precedingContract,
        bool isValid
    ) external;

    /**
     * @dev Function to set succeeding contract (tail registry) for the adapter.
     * @dev This registry dictates the potential succeeding actions by listing adapters that
     * may be invoked following the current one.
     * @notice Only the adapters documented in this registry can be invoked by the current adapter,
     * thereby guaranteeing regulated and secure execution sequences.
     * @param succeedingContract Address of succeeding contract.
     * @param isValid Boolean value suggesting if this is a valid succeeding contract.
     */
    function setSucceedingContract(
        address succeedingContract,
        bool isValid
    ) external;

    /**
     * @dev Function to set inbound asset registry for the adapter.
     * @dev This registry keeps track of all the acceptable incoming assets, ensuring that the
     * adapter only processes predefined asset types.
     * @param asset Address of the asset.
     * @param isValid Boolean value suggesting if this is a valid inbound asset.
     */
    function setInboundAsset(address asset, bool isValid) external;

    /**
     * @dev Function to set outbound asset registry for the adapter.
     * @dev It manages the types of assets that the adapter is allowed to output, thus controlling
     * the flow’s output and maintaining consistency.
     * @param asset Address of the asset.
     * @param isValid Boolean value suggesting if this is a valid inbound asset.
     */
    function setOutboundAsset(address asset, bool isValid) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

interface IERC20 {
    function name() external view returns (string memory);

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

    function decimals() external view returns (uint8);

    function totalSupply() external view returns (uint256 supply);

    function balanceOf(address _owner) external view returns (uint256 balance);

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

    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    ) external returns (bool success);

    function approve(
        address _spender,
        uint256 _value
    ) external returns (bool success);

    function allowance(
        address _owner,
        address _spender
    ) external view returns (uint256 remaining);

    event Approval(
        address indexed _owner,
        address indexed _spender,
        uint256 _value
    );
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {IERC20} from "../utils/SafeERC20.sol";

abstract contract IWETH {
    function allowance(address, address) public view virtual returns (uint256);

    function balanceOf(address) public view virtual returns (uint256);

    function approve(address, uint256) public virtual;

    function transfer(address, uint256) public virtual returns (bool);

    function transferFrom(
        address,
        address,
        uint256
    ) public virtual returns (bool);

    function deposit() public payable virtual;

    function withdraw(uint256) public virtual;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {BaseAdapter} from "./BaseAdapter.sol";
import {EoaExecutorWithDataProvider, EoaExecutorWithoutDataProvider} from "./utils/EoaExecutor.sol";

abstract contract RouterIntentEoaAdapterWithDataProvider is
    BaseAdapter,
    EoaExecutorWithDataProvider
{
    constructor(
        address __native,
        address __wnative,
        address __owner
    )
        BaseAdapter(__native, __wnative, true, __owner)
    // solhint-disable-next-line no-empty-blocks
    {

    }
}

abstract contract RouterIntentEoaAdapterWithoutDataProvider is
    BaseAdapter,
    EoaExecutorWithoutDataProvider
{
    constructor(
        address __native,
        address __wnative
    )
        BaseAdapter(__native, __wnative, false, address(0))
    // solhint-disable-next-line no-empty-blocks
    {

    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

library Address {
    //insufficient balance
    error InsufficientBalance(uint256 available, uint256 required);
    //unable to send value, recipient may have reverted
    error SendingValueFail();
    //insufficient balance for call
    error InsufficientBalanceForCall(uint256 available, uint256 required);
    //call to non-contract
    error NonContractCall();

    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            codehash := extcodehash(account)
        }
        return (codehash != accountHash && codehash != 0x0);
    }

    function sendValue(address payable recipient, uint256 amount) internal {
        uint256 balance = address(this).balance;
        if (balance < amount) {
            revert InsufficientBalance(balance, amount);
        }

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{value: amount}("");
        if (!(success)) {
            revert SendingValueFail();
        }
    }

    function functionCall(
        address target,
        bytes memory data
    ) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    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"
            );
    }

    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        uint256 balance = address(this).balance;
        if (balance < value) {
            revert InsufficientBalanceForCall(balance, value);
        }
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(
        address target,
        bytes memory data,
        uint256 weiValue,
        string memory errorMessage
    ) private returns (bytes memory) {
        if (!(isContract(target))) {
            revert NonContractCall();
        }

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{value: weiValue}(
            data
        );
        if (success) {
            return returndata;
        } else {
            // 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

library CallLib {
    /**
     * @dev internal method that fecilitates the extenral calls from SmartAccount
     * @dev similar to execute() of Executor.sol
     * @param target destination address contract/non-contract
     * @param value amount of native tokens
     * @param data function singature of destination
     */
    function _call(
        address target,
        uint256 value,
        bytes memory data
    ) internal returns (bytes memory result) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let success := call(
                gas(),
                target,
                value,
                add(data, 0x20),
                mload(data),
                0,
                0
            )

            // Get the size of the returned data
            let size := returndatasize()

            // Allocate memory for the return data
            result := mload(0x40)

            // Set the length of the return data
            mstore(result, size)

            // Copy the return data to the allocated memory
            returndatacopy(add(result, 0x20), 0, size)

            // Update the free memory pointer
            mstore(0x40, add(result, add(0x20, size)))

            if iszero(success) {
                revert(result, returndatasize())
            }
        }
    }

    /**
     * @dev internal method that fecilitates the extenral calls from SmartAccount
     * @dev similar to execute() of Executor.sol
     * @param target destination address contract/non-contract
     * @param data function singature of destination
     */
    function _delegateCall(
        address target,
        bytes memory data
    ) internal returns (bytes memory result) {
        require(target != address(this), "delegatecall to self");

        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Perform delegatecall to the target contract
            let success := delegatecall(
                gas(),
                target,
                add(data, 0x20),
                mload(data),
                0,
                0
            )

            // Get the size of the returned data
            let size := returndatasize()

            // Allocate memory for the return data
            result := mload(0x40)

            // Set the length of the return data
            mstore(result, size)

            // Copy the return data to the allocated memory
            returndatacopy(add(result, 0x20), 0, size)

            // Update the free memory pointer
            mstore(0x40, add(result, add(0x20, size)))

            if iszero(success) {
                revert(result, returndatasize())
            }
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

abstract contract EoaExecutorWithDataProvider {
    /**
     * @dev function to execute an action on an adapter used in an EOA.
     * @param precedingAdapter Address of the preceding adapter.
     * @param succeedingAdapter Address of the succeeding adapter.
     * @param data inputs data.
     * @return tokens to be refunded to user at the end of tx.
     */
    function execute(
        address precedingAdapter,
        address succeedingAdapter,
        bytes calldata data
    ) external payable virtual returns (address[] memory tokens);
}

abstract contract EoaExecutorWithoutDataProvider {
    /**
     * @dev function to execute an action on an adapter used in an EOA.
     * @param data inputs data.
     * @return tokens to be refunded to user at the end of tx.
     */
    function execute(
        bytes calldata data
    ) external payable virtual returns (address[] memory tokens);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.18;

/**
 * @title Errors library
 * @author Router Intents Error
 * @notice Defines the error messages emitted by the contracts on Router Intents
 */
library Errors {
    string public constant ARRAY_LENGTH_MISMATCH = "1"; // 'Array lengths mismatch'
    string public constant INSUFFICIENT_NATIVE_FUNDS_PASSED = "2"; // 'Insufficient native tokens passed'
    string public constant WRONG_BATCH_PROVIDED = "3"; // 'The targetLength, valueLength, callTypeLength, funcLength do not match in executeBatch transaction functions in batch transaction contract'
    string public constant INVALID_CALL_TYPE = "4"; // 'The callType value can only be 1 (call)' and 2(delegatecall)'
    string public constant ONLY_NITRO = "5"; // 'Only nitro can call this function'
    string public constant ONLY_SELF = "6"; // 'Only the current contract can call this function'
    string public constant ADAPTER_NOT_WHITELISTED = "7"; // 'Adapter not whitelisted'
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

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

abstract contract NitroMessageHandler {
    address private immutable _assetForwarder;
    address private immutable _dexspan;

    constructor(address __assetForwarder, address __dexspan) {
        _assetForwarder = __assetForwarder;
        _dexspan = __dexspan;
    }

    /**
     * @dev function to get the address of asset forwarder
     */
    function assetForwarder() public view returns (address) {
        return _assetForwarder;
    }

    /**
     * @dev function to get the address of dexspan
     */
    function dexspan() public view returns (address) {
        return _dexspan;
    }

    /**
     * @notice function to handle instructions received from source chain.
     * @param tokenSent address of token received.
     * @param amount amount of tokens received.
     * @param instruction instruction passed from source chain.
     */
    function handleMessage(
        address tokenSent,
        uint256 amount,
        bytes memory instruction
    ) external virtual;

    /**
     * @notice modifier to ensure that only Nitro bridge can call handleMessage function
     */
    modifier onlyNitro() {
        _onlyNitro();
        _;
    }

    function _onlyNitro() private view {
        require(
            msg.sender == _assetForwarder || msg.sender == _dexspan,
            Errors.ONLY_NITRO
        );
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.18;

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;

    error ReentrantCall();

    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 make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        if (_status == _ENTERED) {
            revert ReentrantCall();
        }

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

        _;

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {IERC20} from "../interfaces/IERC20.sol";
import {Address} from "./Address.sol";
import {SafeMath} from "./SafeMath.sol";

library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.transfer.selector, to, value)
        );
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.transferFrom.selector, from, to, value)
        );
    }

    /// @dev Edited so it always first approves 0 and then the value, because of non standard tokens
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.approve.selector, spender, 0)
        );
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.approve.selector, spender, value)
        );
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(
            value
        );
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(
                token.approve.selector,
                spender,
                newAllowance
            )
        );
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(
            value,
            "SafeERC20: decreased allowance below zero"
        );
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(
                token.approve.selector,
                spender,
                newAllowance
            )
        );
    }

    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        bytes memory returndata = address(token).functionCall(
            data,
            "SafeERC20: low-level call failed"
        );
        if (returndata.length > 0) {
            // Return data is optional
            // solhint-disable-next-line max-line-length
            require(
                abi.decode(returndata, (bool)),
                "SafeERC20: operation failed"
            );
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: mul overflow");

        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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address[]"},{"internalType":"bool[]","name":"shouldWhitelist","type":"bool[]"}],"name":"setAdapterWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wnative","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2000000000000000000000000c21e4ebd1d92036cb467b53fe3258f219d909eb90000000000000000000000006a0fd5577c540e16a3a49c40b51e0880a2a528ce

-----Decoded View---------------
Arg [0] : __native (address): 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Arg [1] : __wnative (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Arg [2] : __assetForwarder (address): 0xC21e4ebD1d92036Cb467b53fE3258F219d909Eb9
Arg [3] : __dexspan (address): 0x6A0fD5577c540e16A3A49C40b51E0880a2a528ce

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Arg [1] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [2] : 000000000000000000000000c21e4ebd1d92036cb467b53fe3258f219d909eb9
Arg [3] : 0000000000000000000000006a0fd5577c540e16a3a49c40b51e0880a2a528ce