// File: @openzeppelin/contracts/access/AccessControl.sol



// 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());
        }
    }
}

// File: @openzeppelin/contracts/access/IAccessControl.sol



// 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;
}

// File: @openzeppelin/contracts/utils/Context.sol



// 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;
    }
}

// File: @openzeppelin/contracts/utils/Strings.sol



// 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));
    }
}

// File: @openzeppelin/contracts/utils/introspection/ERC165.sol



// 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;
    }
}

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



// 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);
}

// File: @openzeppelin/contracts/utils/math/Math.sol



// 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);
        }
    }
}

// File: @openzeppelin/contracts/utils/math/SignedMath.sol



// 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);
        }
    }
}

// File: contracts/aux/AddressManager.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.17;

import { ICegaEntry } from "../cega-entry/interfaces/ICegaEntry.sol";
import { CegaEntry } from "../cega-entry/CegaEntry.sol";
import { IAddressManager } from "./interfaces/IAddressManager.sol";
import { IACLManager } from "./interfaces/IACLManager.sol";
import { Errors } from "../utils/Errors.sol";

contract AddressManager is IAddressManager {
    bytes32 private constant CEGA_ENTRY = "CEGA_ENTRY";
    bytes32 private constant CEGA_ORACLE = "CEGA_ORACLE";
    bytes32 private constant ACL_MANAGER = "ACL_MANAGER";
    bytes32 private constant REDEPOSIT_MANAGER = "REDEPOSIT_MANAGER";
    bytes32 private constant TRADE_WINNER_NFT = "TRADE_WINNER_NFT";
    bytes32 private constant CEGA_FEE_RECEIVER = "CEGA_FEE_RECEIVER";

    // Map of registered addresses (identifier => registeredAddress)
    mapping(bytes32 => address) private _addresses;

    mapping(address => address) private _assetWrappingProxies;

    modifier onlyCegaAdmin() {
        require(
            IACLManager(_addresses[ACL_MANAGER]).isCegaAdmin(msg.sender),
            Errors.NOT_CEGA_ADMIN
        );
        _;
    }

    constructor(address aclManager) {
        _setAddress(ACL_MANAGER, aclManager);
    }

    function getCegaOracle() external view returns (address) {
        return _addresses[CEGA_ORACLE];
    }

    function getCegaEntry() external view returns (address) {
        return _addresses[CEGA_ENTRY];
    }

    function getCegaFeeReceiver() external view returns (address) {
        return _addresses[CEGA_FEE_RECEIVER];
    }

    function getACLManager() external view returns (address) {
        return _addresses[ACL_MANAGER];
    }

    function getRedepositManager() external view returns (address) {
        return _addresses[REDEPOSIT_MANAGER];
    }

    function getTradeWinnerNFT() external view returns (address) {
        return _addresses[TRADE_WINNER_NFT];
    }

    function getAddress(bytes32 id) external view returns (address) {
        return _addresses[id];
    }

    function getAssetWrappingProxy(
        address asset
    ) external view returns (address) {
        return _assetWrappingProxies[asset];
    }

    function setCegaEntry(address newAddress) external onlyCegaAdmin {
        _setAddress(CEGA_ENTRY, newAddress);
    }

    function setTradeWinnerNFT(address newAddress) external onlyCegaAdmin {
        _setAddress(TRADE_WINNER_NFT, newAddress);
    }

    function setCegaOracle(address newAddress) external onlyCegaAdmin {
        _setAddress(CEGA_ORACLE, newAddress);
    }

    function setRedepositManager(address newAddress) external onlyCegaAdmin {
        _setAddress(REDEPOSIT_MANAGER, newAddress);
    }

    function setCegaFeeReceiver(address newAddress) external onlyCegaAdmin {
        _setAddress(CEGA_FEE_RECEIVER, newAddress);
    }

    function setAddress(bytes32 id, address newAddress) external onlyCegaAdmin {
        _setAddress(id, newAddress);
    }

    function setAssetWrappingProxy(
        address asset,
        address proxy
    ) external onlyCegaAdmin {
        _assetWrappingProxies[asset] = proxy;
        emit AssetProxyUpdated(asset, proxy);
    }

    function updateCegaEntryImpl(
        ICegaEntry.ProxyImplementation[] calldata implementationParams,
        address _init,
        bytes calldata _calldata
    ) external onlyCegaAdmin {
        _updateCegaEntryImpl(
            CEGA_ENTRY,
            implementationParams,
            _init,
            _calldata
        );

        emit CegaEntryUpdated(implementationParams, _init, _calldata);
    }

    function _updateCegaEntryImpl(
        bytes32 id,
        ICegaEntry.ProxyImplementation[] calldata implementationParams,
        address _init,
        bytes calldata _calldata
    ) private {
        address proxyAddress = _addresses[id];

        ICegaEntry proxy;

        if (proxyAddress == address(0)) {
            proxy = ICegaEntry(address(new CegaEntry(address(this))));
            proxy.updateImplementation(implementationParams, _init, _calldata);
            _addresses[id] = proxyAddress = address(proxy);
            emit CegaEntryCreated(id, proxyAddress, implementationParams);
        } else {
            proxy = ICegaEntry(payable(proxyAddress));

            proxy.updateImplementation(implementationParams, _init, _calldata);
            emit CegaEntryUpdated(implementationParams, _init, _calldata);
        }
    }

    function _setAddress(bytes32 id, address newAddress) private {
        address oldAddress = _addresses[id];
        _addresses[id] = newAddress;
        emit AddressSet(id, oldAddress, newAddress);
    }
}

// File: contracts/aux/interfaces/IACLManager.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.17;

import "@openzeppelin/contracts/access/AccessControl.sol";

interface IACLManager {
    function setRoleAdmin(bytes32 role, bytes32 adminRole) external;

    function addCegaAdmin(address admin) external;

    function removeCegaAdmin(address admin) external;

    function addTraderAdmin(address admin) external;

    function removeTraderAdmin(address admin) external;

    function addOperatorAdmin(address admin) external;

    function removeOperatorAdmin(address admin) external;

    function addServiceAdmin(address admin) external;

    function removeServiceAdmin(address admin) external;

    function isCegaAdmin(address admin) external view returns (bool);

    function isTraderAdmin(address admin) external view returns (bool);

    function isOperatorAdmin(address admin) external view returns (bool);

    function isServiceAdmin(address admin) external view returns (bool);
}

// File: contracts/aux/interfaces/IAddressManager.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.17;

import { ICegaEntry } from "../../cega-entry/interfaces/ICegaEntry.sol";

interface IAddressManager {
    /**
     * @dev Emitted when a new CegaEntry is created.
     * @param id The identifier of the proxy
     * @param proxyAddress The address of the created proxy contract
     * @param implementationParams The params of the implementation update
     */
    event CegaEntryCreated(
        bytes32 indexed id,
        address indexed proxyAddress,
        ICegaEntry.ProxyImplementation[] indexed implementationParams
    );

    /**
     * @dev Emitted when the CegaEntry is updated.
     * @param implementationParams The old address of the CegaEntry
     * @param _init The new address to call upon upgrade
     * @param _calldata The calldata input for the call
     */
    event CegaEntryUpdated(
        ICegaEntry.ProxyImplementation[] indexed implementationParams,
        address _init,
        bytes _calldata
    );

    /**
     * @dev Emitted when a new address is set
     * @param id The identifier of the proxy
     * @param oldAddress The previous address assoicated with the id
     * @param newAddress The new address set to the id
     */
    event AddressSet(
        bytes32 indexed id,
        address indexed oldAddress,
        address indexed newAddress
    );

    event AssetProxyUpdated(address asset, address proxy);

    function getCegaOracle() external view returns (address);

    function getCegaEntry() external view returns (address);

    function getTradeWinnerNFT() external view returns (address);

    function getACLManager() external view returns (address);

    function getRedepositManager() external view returns (address);

    function getCegaFeeReceiver() external view returns (address);

    function getAddress(bytes32 id) external view returns (address);

    function getAssetWrappingProxy(
        address asset
    ) external view returns (address);

    function setAddress(bytes32 id, address newAddress) external;

    function setAssetWrappingProxy(address asset, address proxy) external;

    function updateCegaEntryImpl(
        ICegaEntry.ProxyImplementation[] calldata implementationParams,
        address _init,
        bytes calldata _calldata
    ) external;
}

// File: contracts/cega-entry/CegaEntry.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

/******************************************************************************\
* A custom implementation of EIP-2535
* EIP-2535: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

import { CegaEntryLib } from "./lib/CegaEntryLib.sol";
import { ICegaEntry } from "./interfaces/ICegaEntry.sol";

contract CegaEntry is ICegaEntry {
    constructor(address _contractOwner) payable {
        CegaEntryLib.setContractOwner(_contractOwner);
    }

    function updateImplementation(
        ProxyImplementation[] calldata _implementationParams,
        address _init,
        bytes calldata _calldata
    ) external override {
        CegaEntryLib.enforceIsContractOwner();
        CegaEntryLib.updateImplementation(
            _implementationParams,
            _init,
            _calldata
        );
    }

    // Find implementation for function that is called and execute the
    // function if a implementation is found and return any value.
    fallback() external payable {
        CegaEntryLib.ProxyStorage storage ds;
        bytes32 position = CegaEntryLib.PROXY_STORAGE_POSITION;
        // get proxy storage
        assembly {
            ds.slot := position
        }
        // get implementation from function selector
        address implementation = ds
            .selectorToImplAndPosition[msg.sig]
            .implAddress;
        require(
            implementation != address(0),
            "CegaEntry: Function does not exist"
        );
        // Execute external function from implementation using delegatecall and return any value.
        assembly {
            // copy function selector and any arguments
            calldatacopy(0, 0, calldatasize())
            // execute function call using the implementation
            let result := delegatecall(
                gas(),
                implementation,
                0,
                calldatasize(),
                0,
                0
            )
            // get any return value
            returndatacopy(0, 0, returndatasize())
            // return any return value or error back to the caller
            switch result
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    receive() external payable {}
}

// File: contracts/cega-entry/interfaces/ICegaEntry.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

/******************************************************************************\
* EIP-2535: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

interface ICegaEntry {
    enum ProxyImplementationAction {
        Add,
        Replace,
        Remove
    }
    // Add=0, Replace=1, Remove=2

    struct ProxyImplementation {
        address implAddress;
        ProxyImplementationAction action;
        bytes4[] functionSelectors;
    }

    /// @notice Add/replace/remove any number of functions and optionally execute
    ///         a function with delegatecall
    /// @param _implementationParams Contains the implementation addresses and function selectors
    /// @param _init The address of the contract or implementation to execute _calldata
    /// @param _calldata A function call, including function selector and arguments
    ///                  _calldata is executed with delegatecall on _init
    function updateImplementation(
        ProxyImplementation[] calldata _implementationParams,
        address _init,
        bytes calldata _calldata
    ) external;

    event ImplementationUpdated(
        ProxyImplementation[] _implementationParams,
        address _init,
        bytes _calldata
    );
}

// File: contracts/cega-entry/lib/CegaEntryLib.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

/******************************************************************************\
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

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

library CegaEntryLib {
    bytes32 constant PROXY_STORAGE_POSITION =
        bytes32(uint256(keccak256("cega.proxy.implementation.storage")) - 1);

    struct ImplementationAddressAndPosition {
        address implAddress;
        uint96 functionSelectorPosition; // position in implementationFunctionSelectors.functionSelectors array
    }

    struct ImplementationFunctionSelectors {
        bytes4[] functionSelectors;
        uint256 implementationAddressPosition; // position of implAddress in implementationAddresses array
    }

    struct ProxyStorage {
        // maps function selector to the implementation address and
        // the position of the selector in the implementationFunctionSelectors.selectors array
        mapping(bytes4 => ImplementationAddressAndPosition) selectorToImplAndPosition;
        // maps implementation addresses to function selectors
        mapping(address => ImplementationFunctionSelectors) implementationFunctionSelectors;
        // implementation addresses
        address[] implementationAddresses;
        // Used to query if a contract implements an interface.
        // Used to implement ERC-165.
        mapping(bytes4 => bool) supportedInterfaces;
        // owner of the contract
        address contractOwner;
    }

    function proxyStorage() internal pure returns (ProxyStorage storage ds) {
        bytes32 position = PROXY_STORAGE_POSITION;
        assembly {
            ds.slot := position
        }
    }

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

    function setContractOwner(address _newOwner) internal {
        ProxyStorage storage ds = proxyStorage();
        address previousOwner = ds.contractOwner;
        ds.contractOwner = _newOwner;
        emit OwnershipTransferred(previousOwner, _newOwner);
    }

    function contractOwner() internal view returns (address contractOwner_) {
        contractOwner_ = proxyStorage().contractOwner;
    }

    function enforceIsContractOwner() internal view {
        require(
            msg.sender == proxyStorage().contractOwner,
            "CegaEntry: Must be contract owner"
        );
    }

    event ImplementationUpdated(
        ICegaEntry.ProxyImplementation[] _implementationData,
        address _init,
        bytes _calldata
    );

    // Internal function version of diamondCut
    function updateImplementation(
        ICegaEntry.ProxyImplementation[] memory _implementationData,
        address _init,
        bytes memory _calldata
    ) internal {
        for (
            uint256 implIndex;
            implIndex < _implementationData.length;
            implIndex++
        ) {
            ICegaEntry.ProxyImplementationAction action = _implementationData[
                implIndex
            ].action;
            if (action == ICegaEntry.ProxyImplementationAction.Add) {
                addFunctions(
                    _implementationData[implIndex].implAddress,
                    _implementationData[implIndex].functionSelectors
                );
            } else if (action == ICegaEntry.ProxyImplementationAction.Replace) {
                replaceFunctions(
                    _implementationData[implIndex].implAddress,
                    _implementationData[implIndex].functionSelectors
                );
            } else if (action == ICegaEntry.ProxyImplementationAction.Remove) {
                removeFunctions(
                    _implementationData[implIndex].implAddress,
                    _implementationData[implIndex].functionSelectors
                );
            } else {
                revert("CegaEntry: Incorrect ProxyImplementationAction");
            }
        }
        emit ImplementationUpdated(_implementationData, _init, _calldata);
        initializeImplementation(_init, _calldata);
    }

    function addFunctions(
        address _implementationAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        require(
            _functionSelectors.length > 0,
            "CegaEntry: No selectors in implementation to cut"
        );
        ProxyStorage storage ds = proxyStorage();
        require(
            _implementationAddress != address(0),
            "CegaEntry: Add implementation can't be address(0)"
        );
        uint96 selectorPosition = uint96(
            ds
                .implementationFunctionSelectors[_implementationAddress]
                .functionSelectors
                .length
        );
        // add new implementation address if it does not exist
        if (selectorPosition == 0) {
            addFacet(ds, _implementationAddress);
        }
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;
            selectorIndex++
        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldImplementationAddress = ds
                .selectorToImplAndPosition[selector]
                .implAddress;
            require(
                oldImplementationAddress == address(0),
                "CegaEntry: Can't add function that already exists"
            );
            addFunction(ds, selector, selectorPosition, _implementationAddress);
            selectorPosition++;
        }
    }

    function replaceFunctions(
        address _implementationAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        require(
            _functionSelectors.length > 0,
            "CegaEntry: No selectors in implementation to cut"
        );
        ProxyStorage storage ds = proxyStorage();
        require(
            _implementationAddress != address(0),
            "CegaEntry: Replace implementation can't be address(0)"
        );
        uint96 selectorPosition = uint96(
            ds
                .implementationFunctionSelectors[_implementationAddress]
                .functionSelectors
                .length
        );
        // add new implementation address if it does not exist
        if (selectorPosition == 0) {
            addFacet(ds, _implementationAddress);
        }
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;
            selectorIndex++
        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldImplementationAddress = ds
                .selectorToImplAndPosition[selector]
                .implAddress;
            require(
                oldImplementationAddress != _implementationAddress,
                "CegaEntry: Can't replace function with same function"
            );
            removeFunction(ds, oldImplementationAddress, selector);
            addFunction(ds, selector, selectorPosition, _implementationAddress);
            selectorPosition++;
        }
    }

    function removeFunctions(
        address _implementationAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        require(
            _functionSelectors.length > 0,
            "CegaEntry: No selectors in implementation to cut"
        );
        ProxyStorage storage ds = proxyStorage();
        // if function does not exist then do nothing and return
        require(
            _implementationAddress == address(0),
            "CegaEntry: Remove implementation address must be address(0)"
        );
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;
            selectorIndex++
        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldImplementationAddress = ds
                .selectorToImplAndPosition[selector]
                .implAddress;
            removeFunction(ds, oldImplementationAddress, selector);
        }
    }

    function addFacet(
        ProxyStorage storage ds,
        address _implementationAddress
    ) internal {
        enforceHasContractCode(
            _implementationAddress,
            "CegaEntry: New implementation has no code"
        );
        ds
            .implementationFunctionSelectors[_implementationAddress]
            .implementationAddressPosition = ds.implementationAddresses.length;
        ds.implementationAddresses.push(_implementationAddress);
    }

    function addFunction(
        ProxyStorage storage ds,
        bytes4 _selector,
        uint96 _selectorPosition,
        address _implementationAddress
    ) internal {
        ds
            .selectorToImplAndPosition[_selector]
            .functionSelectorPosition = _selectorPosition;
        ds
            .implementationFunctionSelectors[_implementationAddress]
            .functionSelectors
            .push(_selector);
        ds
            .selectorToImplAndPosition[_selector]
            .implAddress = _implementationAddress;
    }

    function removeFunction(
        ProxyStorage storage ds,
        address _implementationAddress,
        bytes4 _selector
    ) internal {
        require(
            _implementationAddress != address(0),
            "CegaEntry: Can't remove function that doesn't exist"
        );
        // an immutable function is a function defined directly in a cegaEntry
        require(
            _implementationAddress != address(this),
            "CegaEntry: Can't remove immutable function"
        );
        // replace selector with last selector, then delete last selector
        uint256 selectorPosition = ds
            .selectorToImplAndPosition[_selector]
            .functionSelectorPosition;
        uint256 lastSelectorPosition = ds
            .implementationFunctionSelectors[_implementationAddress]
            .functionSelectors
            .length - 1;
        // if not the same then replace _selector with lastSelector
        if (selectorPosition != lastSelectorPosition) {
            bytes4 lastSelector = ds
                .implementationFunctionSelectors[_implementationAddress]
                .functionSelectors[lastSelectorPosition];
            ds
                .implementationFunctionSelectors[_implementationAddress]
                .functionSelectors[selectorPosition] = lastSelector;
            ds
                .selectorToImplAndPosition[lastSelector]
                .functionSelectorPosition = uint96(selectorPosition);
        }
        // delete the last selector
        ds
            .implementationFunctionSelectors[_implementationAddress]
            .functionSelectors
            .pop();
        delete ds.selectorToImplAndPosition[_selector];

        // if no more selectors for implementation address then delete the implementation address
        if (lastSelectorPosition == 0) {
            // replace implementation address with last implementation address and delete last implementation address
            uint256 lastImplementationAddressPosition = ds
                .implementationAddresses
                .length - 1;
            uint256 implementationAddressPosition = ds
                .implementationFunctionSelectors[_implementationAddress]
                .implementationAddressPosition;
            if (
                implementationAddressPosition !=
                lastImplementationAddressPosition
            ) {
                address lastImplementationAddress = ds.implementationAddresses[
                    lastImplementationAddressPosition
                ];
                ds.implementationAddresses[
                    implementationAddressPosition
                ] = lastImplementationAddress;
                ds
                    .implementationFunctionSelectors[lastImplementationAddress]
                    .implementationAddressPosition = implementationAddressPosition;
            }
            ds.implementationAddresses.pop();
            delete ds
                .implementationFunctionSelectors[_implementationAddress]
                .implementationAddressPosition;
        }
    }

    function initializeImplementation(
        address _init,
        bytes memory _calldata
    ) internal {
        if (_init == address(0)) {
            require(
                _calldata.length == 0,
                "CegaEntry: _init is address(0) but_calldata is not empty"
            );
        } else {
            require(
                _calldata.length > 0,
                "CegaEntry: _calldata is empty but _init is not address(0)"
            );
            if (_init != address(this)) {
                enforceHasContractCode(
                    _init,
                    "CegaEntry: _init address has no code"
                );
            }
            (bool success, bytes memory error) = _init.delegatecall(_calldata);
            if (!success) {
                if (error.length > 0) {
                    // bubble up the error
                    revert(string(error));
                } else {
                    revert("CegaEntry: _init function reverted");
                }
            }
        }
    }

    function enforceHasContractCode(
        address _contract,
        string memory _errorMessage
    ) internal view {
        uint256 contractSize;
        assembly {
            contractSize := extcodesize(_contract)
        }
        require(contractSize > 0, _errorMessage);
    }
}

// File: contracts/utils/Errors.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.17;

library Errors {
    string public constant NOT_CEGA_ENTRY = "1";
    string public constant NOT_CEGA_ADMIN = "2";
    string public constant NOT_TRADER_ADMIN = "3";
    string public constant NOT_TRADE_WINNER = "4";
    string public constant INVALID_VAULT = "5";
    string public constant INVALID_VAULT_STATUS = "6";
    string public constant VAULT_IN_ZOMBIE_STATE = "7";
    string public constant TRADE_DEFAULTED = "8";
    string public constant INVALID_SETTLEMENT_STATUS = "9";
    string public constant VAULT_IN_DISPUTE = "10";
    string public constant VAULT_NOT_IN_DISPUTE = "11";
    string public constant OUTSIDE_DISPUTE_PERIOD = "12";
    string public constant TRADE_HAS_NO_WINNER = "13";
    string public constant TRADE_NOT_CONVERTED = "14";
    string public constant TRADE_CONVERTED = "15";
    string public constant INVALID_TRADE_END_DATE = "16";
    string public constant INVALID_PRICE = "17";
    string public constant VALUE_TOO_SMALL = "18";
    string public constant VALUE_TOO_LARGE = "19";
    string public constant VALUE_IS_ZERO = "20";
    string public constant MAX_DEPOSIT_LIMIT_REACHED = "21";
    string public constant DEPOSIT_QUEUE_NOT_OPEN = "22";
    string public constant INVALID_QUOTE_OR_BASE_ASSETS = "23";
    string public constant INVALID_MIN_DEPOSIT_AMOUNT = "24";
    string public constant INVALID_MIN_WITHDRAWAL_AMOUNT = "25";
    string public constant INVALID_STRIKE_PRICE = "26";
    string public constant TRANSFER_FAILED = "27";
    string public constant NOT_AVAILABLE_DATA_SOURCE = "28";
    string public constant NO_PRICE_AVAILABLE = "29";
    string public constant NO_PRICE_FEED_SET = "30";
    string public constant INCOMPATIBLE_PRICE = "31";
    string public constant NOT_CEGA_ENTRY_OR_REDEPOSIT_MANAGER = "32";
    string public constant NO_PROXY_FOR_REDEPOSIT = "33";
    string public constant NOT_TRADE_WINNER_OR_TRADER_ADMIN = "34";
}