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// SPDX-License-Identifier: MIT
// Compatible with OpenZeppelin Contracts ^5.0.0
pragma solidity ^0.8.0;

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

//┌─────────────────────────────────────────────────────────┐
//│                        +----+----+----+----+            │
//│                        | 4x |BID | 5x | 7x |            │
//│                        +----+----+----+----+            │
//│                      ▁▁▁WIN | 3x | 4x | 5x |            │
//│                      ▏ +----+----+----+----+            │
//│▔▔▔▏     ▏         ▁▁▏  | 2x | 3x |BID | 6x |            │
//│    ▏    ▏▔▔▏     ▏     +----+----+----+----+            │
//│     ▏  ▏   ▔▔▏  ▏      | 3x | 4x | 5x | 7x |            │
//│     ▏▔▔      ▔▔▔       +----+----+----+----+            │
//│                        | 5x | 6x | 8x |10x |            │
//└─────────────────────────────────────────────────────────┘
//0s   5s   10s   15s   20s  25s  30s  35s  40s  45s   → Time

/// @title Gridle game
/// @notice A payment grid contract that handles ETH deposits, claims, and refunds with signature verification
/// @dev Uses cryptographic signatures to authorize deposits and claims. Each order ID can only be processed once to prevent
///      double spending. Supports role-based refunds for ETH.
contract Gridle is AccessControl {
    bytes32 public constant WITHDRAW_ROLE = keccak256("WITHDRAW_ROLE");
    bytes32 public constant REFUND_ROLE = keccak256("REFUND_ROLE");

    /// @notice Address used to verify deposit signatures
    address public signerAddress;

    /// @notice Address to receive automatic withdrawals when balance exceeds limits
    address public withdrawAddress;

    /// @notice Mapping to track processed order IDs to prevent double spending
    mapping(uint => bool) public processedOrders;

    /// @notice Mapping to track last deposited amount per account for refund validation
    mapping(address => uint256) public deposits;

    /// @notice Minimum balance target as a percentage of systemBalance (in basis points)
    /// @dev Target balance after withdrawal = systemBalance * minReservesCoef / 10000
    /// @dev Example: 11000 = 110% means keep 110% of systemBalance (if systemBalance=100 ETH, keep 110 ETH)
    uint256 public minReservesCoef;

    /// @notice Maximum balance threshold as a percentage of systemBalance (in basis points)
    /// @dev When balance exceeds systemBalance * maxReservesCoef / 10000, auto-withdrawal triggers
    /// @dev Example: 15000 = 150% means trigger withdrawal when balance > 150% of systemBalance
    uint256 public maxReservesCoef;

    /// @notice Absolute minimum ETH buffer to maintain regardless of systemBalance
    /// @dev Used as a safety floor when systemBalance is very low or zero
    /// @dev If (systemBalance + minReserves) > coefficient-based target, this value is used instead
    uint256 public minReserves;

    /// @notice Last processed signId to track order sequence
    uint256 public lastSignId;


    /// @notice Error thrown when a provided signature is invalid
    error WrongSignature();

    /// @notice Error thrown when an order has already been processed
    error OrderAlreadyProcessed();

    /// @notice Error thrown when a zero address is provided where not allowed
    error ZeroAddress();

    /// @notice Error thrown when ETH transfer fails
    error EthTransferFailed();

    /// @notice Error thrown when reserved amount exceeds available balance
    error InsufficientBalance();

    /// @notice Error thrown when deadline has passed
    error DeadlineExpired();

    /// @notice Error thrown when refund amount exceeds deposit amount
    error InvalidRefundAmount();


    /// @notice Emitted when a successful ETH deposit is made
    /// @param signId The unique identifier for the order
    /// @param depositor The address that made the deposit
    /// @param amount The amount deposited in wei
    event EthDeposited(uint indexed signId, address indexed depositor, uint256 amount);

    /// @notice Emitted when a successful ETH claim is made
    /// @param signId The unique identifier for the order
    /// @param account The address that claimed the payment
    /// @param amount The amount claimed in wei
    event EthClaimed(uint indexed signId, address indexed account, uint256 amount);


    /// @notice Emitted when ETH is refunded to an account
    /// @param account The address that received the refund
    /// @param amount The amount refunded in wei
    event EthRefunded(address indexed account, uint256 amount);


    /// @notice Emitted when reserve parameters are updated
    /// @param minReservesCoef The new minimum reserves coefficient
    /// @param maxReservesCoef The new maximum reserves coefficient
    /// @param minReserves The new minimum reserves amount
    event ReserveParametersUpdated(uint256 minReservesCoef, uint256 maxReservesCoef, uint256 minReserves);

    /// @notice Emitted when automatic withdrawal occurs
    /// @param token The token address (address(0) for ETH)
    /// @param amount The amount automatically withdrawn
    /// @param recipient The address that received the withdrawal
    event AutoWithdrawal(address indexed token, uint256 amount, address indexed recipient);

    /// @notice Emitted when contract receives ETH directly
    /// @param sender The address that sent ETH to the contract
    /// @param amount The amount sent in wei
    event Topup(address indexed sender, uint256 amount);

    /// @param defaultAdmin The address that will initially own the admin role
    /// @param _signerAddress The address authorized to sign deposit approvals
    constructor(address defaultAdmin, address _signerAddress) {
        if (defaultAdmin == address(0)) {
            revert ZeroAddress();
        }
        _grantRole(DEFAULT_ADMIN_ROLE, defaultAdmin);
        _grantRole(WITHDRAW_ROLE, defaultAdmin);
        _grantRole(REFUND_ROLE, defaultAdmin);
        signerAddress = _signerAddress;
        withdrawAddress = defaultAdmin;

        // Set default reserve coefficients: min 110%, max 120%
        // Must be > 100% (10000) to maintain reserves above systemBalance
        minReservesCoef = 11000;  // 110% (11000/10000)
        maxReservesCoef = 12000;  // 120% (12000/10000)
        minReserves = 1 ether;
    }


    /// @notice Allows an admin to update the authorized signer address
    /// @param newSigner The new signer address
    function setSigner(address newSigner) external onlyRole(DEFAULT_ADMIN_ROLE) {
        signerAddress = newSigner;
    }

    /// @notice Set reserve parameters including coefficients and absolute minimum reserves
    /// @param _minReservesCoef The minimum reserves coefficient in basis points (10000 = 100%)
    /// @param _maxReservesCoef The maximum reserves coefficient in basis points (10000 = 100%)
    /// @param _minReserves The absolute minimum reserves amount that must always be present
    function setReserveParameters(
        uint256 _minReservesCoef,
        uint256 _maxReservesCoef,
        uint256 _minReserves
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(_minReservesCoef > 10000, "Min coefficient must be > 100% (10000)");
        require(_maxReservesCoef > 10000, "Max coefficient must be > 100% (10000)");
        require(_minReservesCoef <= _maxReservesCoef, "Min coefficient must be <= max coefficient");
        minReservesCoef = _minReservesCoef;
        maxReservesCoef = _maxReservesCoef;
        minReserves = _minReserves;
        emit ReserveParametersUpdated(_minReservesCoef, _maxReservesCoef, _minReserves);
    }

    /// @notice Set the address to receive automatic withdrawals
    /// @param _withdrawAddress The address to receive automatic withdrawals
    function setWithdrawAddress(address _withdrawAddress) external onlyRole(DEFAULT_ADMIN_ROLE) {
        if (_withdrawAddress == address(0)) {
            revert ZeroAddress();
        }
        withdrawAddress = _withdrawAddress;
    }

    /// @notice Internal function to handle automatic ETH withdrawals when balance exceeds limits
    /// @param systemBalance The required system balance (funds needed for operations)
    function _autoWithdraw(uint256 systemBalance) internal {
        // Calculate the total balance targets using coefficients
        // Example: if systemBalance = 100 ETH and minReservesCoef = 11000 (110%)
        // then minTargetFromCoef = 110 ETH (keeping 110% of what's needed)
        uint256 minTargetFromCoef = (systemBalance * minReservesCoef) / 10000;
        uint256 maxTargetFromCoef = (systemBalance * maxReservesCoef) / 10000;

        // Ensure we keep at least the coefficient-based target OR systemBalance + absolute minimum
        // This provides a safety floor: either percentage-based or fixed minimum buffer
        uint256 effectiveMinTarget = minTargetFromCoef > (systemBalance + minReserves)
            ? minTargetFromCoef
            : (systemBalance + minReserves);

        // Check if current balance exceeds the maximum allowed threshold
        uint256 currentBalance = address(this).balance;
        uint256 maxAllowed = maxTargetFromCoef;

        if (currentBalance > maxAllowed) {
            // Withdraw excess funds down to the minimum target balance
            uint256 targetBalance = effectiveMinTarget;
            if (currentBalance > targetBalance) {
                uint256 withdrawAmount = currentBalance - targetBalance;
                (bool success, ) = payable(withdrawAddress).call{
                    value: withdrawAmount
                }("");
                if (success) {
                    emit AutoWithdrawal(address(0), withdrawAmount, withdrawAddress);
                }
            }
        }
    }

    /// @notice Deposit ether with signature verification. Can also be used for time limited bids.
    /// @param signId The unique identifier for this order
    /// @param deadline The deadline timestamp after which the signature is invalid
    /// @param systemBalance The system balance parameter
    /// @param sigV The V component of the signature
    /// @param sigR The R component of the signature
    /// @param sigS The S component of the signature
    function depositEth(
        uint signId,
        uint deadline,
        uint systemBalance,
        uint8 sigV,
        bytes32 sigR,
        bytes32 sigS
    ) external payable {
        if (processedOrders[signId]) {
            revert OrderAlreadyProcessed();
        }

        if (block.timestamp > deadline) {
            revert DeadlineExpired();
        }

        bytes32 msgHash = keccak256(
            abi.encode(signId, msg.sender, msg.value, deadline, systemBalance, address(this))
        );
        if (ecrecover(msgHash, sigV, sigR, sigS) != signerAddress) {
            revert WrongSignature();
        }

        processedOrders[signId] = true;

        // Track last deposit amount for refund validation
        deposits[msg.sender] = msg.value;

        emit EthDeposited(signId, msg.sender, msg.value);

        // Auto-withdraw excess ETH balance only if this is a newer signId to be sure that systemBalance is fresh data
        if (signId > lastSignId) {
            lastSignId = signId;
            _autoWithdraw(systemBalance);
        }
    }


    /// @notice Claim payment for an order with signature verification
    /// @param signId The unique identifier for the order
    /// @param account The account to receive the payment
    /// @param value The amount to claim
    /// @param sigV The V component of the signature
    /// @param sigR The R component of the signature
    /// @param sigS The S component of the signature
    function claimEth(
        uint signId,
        address account,
        uint256 value,
        uint8 sigV,
        bytes32 sigR,
        bytes32 sigS
    ) external {
        if (processedOrders[signId]) {
            revert OrderAlreadyProcessed();
        }

        bytes32 msgHash = keccak256(
            abi.encode(signId, account, value, address(this))
        );
        if (ecrecover(msgHash, sigV, sigR, sigS) != signerAddress) {
            revert WrongSignature();
        }

        processedOrders[signId] = true;

        // Clear deposit record when claimed (claimed funds are no longer refundable)
        deposits[account] = 0;

        (bool success, ) = payable(account).call{value: value}("");
        if (!success) {
            revert EthTransferFailed();
        }

        emit EthClaimed(signId, account, value);
    }


    /// @notice Withdraws ETH held by the contract to the caller, leaving a reserved amount
    /// @param reserved The amount of ETH to leave in the contract
    function withdrawEth(uint256 reserved) external onlyRole(WITHDRAW_ROLE) {
        uint256 balance = address(this).balance;
        if (balance < reserved) {
            revert InsufficientBalance();
        }
        uint256 withdrawAmount = balance - reserved;
        (bool success, ) = payable(msg.sender).call{
            value: withdrawAmount
        }("");
        if (!success) {
            revert EthTransferFailed();
        }
    }

    /// @notice Refund ETH to a specific account (amount must be <= deposit)
    /// @param account The account to receive the refund
    /// @param value The amount to refund in wei
    function refundEth(address account, uint256 value) external onlyRole(REFUND_ROLE) {
        if (account == address(0)) {
            revert ZeroAddress();
        }

        // Validate refund amount doesn't exceed deposit amount
        if (deposits[account] < value) {
            revert InvalidRefundAmount();
        }

        // Reset the deposit record
        deposits[account] = 0;

        (bool success, ) = payable(account).call{value: value}("");
        if (!success) {
            revert EthTransferFailed();
        }
        emit EthRefunded(account, value);
    }

    /// @notice Allows contract to receive ETH transfers directly
    receive() external payable {
        emit Topup(msg.sender, msg.value);
    }

}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "./IAccessControl.sol";
import {Context} from "../utils/Context.sol";
import {IERC165, ERC165} from "../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 account => bool) hasRole;
        bytes32 adminRole;
    }

    mapping(bytes32 role => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /// @inheritdoc IERC165
    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 returns (bool) {
        return _roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @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 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 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 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 `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @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 Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        if (!hasRole(role, account)) {
            _roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` from `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        if (hasRole(role, account)) {
            _roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (access/IAccessControl.sol)

pragma solidity >=0.8.4;

/**
 * @dev External interface of AccessControl declared to support ERC-165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @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 to signal this.
     */
    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. This account bears the admin role (for the granted role).
     * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
     */
    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 `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC-165 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);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /// @inheritdoc IERC165
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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);
}

{
  "evmVersion": "paris",
  "optimizer": {
    "enabled": true,
    "mode": "3"
  },
  "outputSelection": {
    "*": {
      "*": [
        "abi",
        "metadata"
      ],
      "": [
        "ast"
      ]
    }
  },
  "detectMissingLibraries": false,
  "forceEVMLA": false,
  "enableEraVMExtensions": false,
  "libraries": {}
}

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:"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastSignId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxReservesCoef","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minReserves","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minReservesCoef","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"processedOrders","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"refundEth","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"callerConfirmation","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_minReservesCoef","type":"uint256"},{"internalType":"uint256","name":"_maxReservesCoef","type":"uint256"},{"internalType":"uint256","name":"_minReserves","type":"uint256"}],"name":"setReserveParameters","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newSigner","type":"address"}],"name":"setSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_withdrawAddress","type":"address"}],"name":"setWithdrawAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signerAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"reserved","type":"uint256"}],"name":"withdrawEth","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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00000000000000000000000000000ef80626c6406ec0bf9720e2e81c066396c000000000000000000000000020000dc5611f4258cb9c0b0d0da971cdba8b96a9

-----Decoded View---------------
Arg [0] : defaultAdmin (address): 0x00000eF80626C6406ec0bf9720e2e81C066396C0
Arg [1] : _signerAddress (address): 0x20000dC5611f4258cb9c0b0d0Da971cDba8b96a9

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000ef80626c6406ec0bf9720e2e81c066396c0
Arg [1] : 00000000000000000000000020000dc5611f4258cb9c0b0d0da971cdba8b96a9