S Price: $0.761644 (+4.95%)
    /

    Contract Diff Checker

    Contract Name:
    PortfolioManager

    Contract Source Code:

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol)
    
    pragma solidity ^0.8.0;
    
    import "./IAccessControlUpgradeable.sol";
    import "../utils/ContextUpgradeable.sol";
    import "../utils/StringsUpgradeable.sol";
    import "../utils/introspection/ERC165Upgradeable.sol";
    import {Initializable} from "../proxy/utils/Initializable.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 AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {
        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);
            _;
        }
    
        function __AccessControl_init() internal onlyInitializing {
        }
    
        function __AccessControl_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev See {IERC165-supportsInterface}.
         */
        function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
            return interfaceId == type(IAccessControlUpgradeable).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 ",
                            StringsUpgradeable.toHexString(account),
                            " is missing role ",
                            StringsUpgradeable.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());
            }
        }
    
        /**
         * @dev This empty reserved space is put in place to allow future versions to add new
         * variables without shifting down storage in the inheritance chain.
         * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
         */
        uint256[49] private __gap;
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
    
    pragma solidity ^0.8.0;
    
    /**
     * @dev External interface of AccessControl declared to support ERC165 detection.
     */
    interface IAccessControlUpgradeable {
        /**
         * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
         *
         * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
         * {RoleAdminChanged} not being emitted signaling this.
         *
         * _Available since v3.1._
         */
        event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
    
        /**
         * @dev Emitted when `account` is granted `role`.
         *
         * `sender` is the account that originated the contract call, an admin role
         * bearer except when using {AccessControl-_setupRole}.
         */
        event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
    
        /**
         * @dev Emitted when `account` is revoked `role`.
         *
         * `sender` is the account that originated the contract call:
         *   - if using `revokeRole`, it is the admin role bearer
         *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
         */
        event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
    
        /**
         * @dev Returns `true` if `account` has been granted `role`.
         */
        function hasRole(bytes32 role, address account) external view returns (bool);
    
        /**
         * @dev Returns the admin role that controls `role`. See {grantRole} and
         * {revokeRole}.
         *
         * To change a role's admin, use {AccessControl-_setRoleAdmin}.
         */
        function getRoleAdmin(bytes32 role) external view returns (bytes32);
    
        /**
         * @dev Grants `role` to `account`.
         *
         * If `account` had not been already granted `role`, emits a {RoleGranted}
         * event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         */
        function grantRole(bytes32 role, address account) external;
    
        /**
         * @dev Revokes `role` from `account`.
         *
         * If `account` had been granted `role`, emits a {RoleRevoked} event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         */
        function revokeRole(bytes32 role, address account) external;
    
        /**
         * @dev Revokes `role` from the calling account.
         *
         * Roles are often managed via {grantRole} and {revokeRole}: this function's
         * purpose is to provide a mechanism for accounts to lose their privileges
         * if they are compromised (such as when a trusted device is misplaced).
         *
         * If the calling account had been granted `role`, emits a {RoleRevoked}
         * event.
         *
         * Requirements:
         *
         * - the caller must be `account`.
         */
        function renounceRole(bytes32 role, address account) external;
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
    
    pragma solidity ^0.8.0;
    
    /**
     * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
     * proxy whose upgrades are fully controlled by the current implementation.
     */
    interface IERC1822ProxiableUpgradeable {
        /**
         * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
         * address.
         *
         * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
         * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
         * function revert if invoked through a proxy.
         */
        function proxiableUUID() external view returns (bytes32);
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1967.sol)
    
    pragma solidity ^0.8.0;
    
    /**
     * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
     *
     * _Available since v4.8.3._
     */
    interface IERC1967Upgradeable {
        /**
         * @dev Emitted when the implementation is upgraded.
         */
        event Upgraded(address indexed implementation);
    
        /**
         * @dev Emitted when the admin account has changed.
         */
        event AdminChanged(address previousAdmin, address newAdmin);
    
        /**
         * @dev Emitted when the beacon is changed.
         */
        event BeaconUpgraded(address indexed beacon);
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
    
    pragma solidity ^0.8.0;
    
    /**
     * @dev This is the interface that {BeaconProxy} expects of its beacon.
     */
    interface IBeaconUpgradeable {
        /**
         * @dev Must return an address that can be used as a delegate call target.
         *
         * {BeaconProxy} will check that this address is a contract.
         */
        function implementation() external view returns (address);
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol)
    
    pragma solidity ^0.8.2;
    
    import "../beacon/IBeaconUpgradeable.sol";
    import "../../interfaces/IERC1967Upgradeable.sol";
    import "../../interfaces/draft-IERC1822Upgradeable.sol";
    import "../../utils/AddressUpgradeable.sol";
    import "../../utils/StorageSlotUpgradeable.sol";
    import {Initializable} from "../utils/Initializable.sol";
    
    /**
     * @dev This abstract contract provides getters and event emitting update functions for
     * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
     *
     * _Available since v4.1._
     */
    abstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable {
        // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
        bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
    
        /**
         * @dev Storage slot with the address of the current implementation.
         * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
         * validated in the constructor.
         */
        bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
    
        function __ERC1967Upgrade_init() internal onlyInitializing {
        }
    
        function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev Returns the current implementation address.
         */
        function _getImplementation() internal view returns (address) {
            return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
        }
    
        /**
         * @dev Stores a new address in the EIP1967 implementation slot.
         */
        function _setImplementation(address newImplementation) private {
            require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
            StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
        }
    
        /**
         * @dev Perform implementation upgrade
         *
         * Emits an {Upgraded} event.
         */
        function _upgradeTo(address newImplementation) internal {
            _setImplementation(newImplementation);
            emit Upgraded(newImplementation);
        }
    
        /**
         * @dev Perform implementation upgrade with additional setup call.
         *
         * Emits an {Upgraded} event.
         */
        function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
            _upgradeTo(newImplementation);
            if (data.length > 0 || forceCall) {
                AddressUpgradeable.functionDelegateCall(newImplementation, data);
            }
        }
    
        /**
         * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
         *
         * Emits an {Upgraded} event.
         */
        function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal {
            // Upgrades from old implementations will perform a rollback test. This test requires the new
            // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
            // this special case will break upgrade paths from old UUPS implementation to new ones.
            if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
                _setImplementation(newImplementation);
            } else {
                try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                    require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
                } catch {
                    revert("ERC1967Upgrade: new implementation is not UUPS");
                }
                _upgradeToAndCall(newImplementation, data, forceCall);
            }
        }
    
        /**
         * @dev Storage slot with the admin of the contract.
         * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
         * validated in the constructor.
         */
        bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
    
        /**
         * @dev Returns the current admin.
         */
        function _getAdmin() internal view returns (address) {
            return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
        }
    
        /**
         * @dev Stores a new address in the EIP1967 admin slot.
         */
        function _setAdmin(address newAdmin) private {
            require(newAdmin != address(0), "ERC1967: new admin is the zero address");
            StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
        }
    
        /**
         * @dev Changes the admin of the proxy.
         *
         * Emits an {AdminChanged} event.
         */
        function _changeAdmin(address newAdmin) internal {
            emit AdminChanged(_getAdmin(), newAdmin);
            _setAdmin(newAdmin);
        }
    
        /**
         * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
         * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
         */
        bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
    
        /**
         * @dev Returns the current beacon.
         */
        function _getBeacon() internal view returns (address) {
            return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
        }
    
        /**
         * @dev Stores a new beacon in the EIP1967 beacon slot.
         */
        function _setBeacon(address newBeacon) private {
            require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
            require(
                AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
                "ERC1967: beacon implementation is not a contract"
            );
            StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
        }
    
        /**
         * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
         * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
         *
         * Emits a {BeaconUpgraded} event.
         */
        function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {
            _setBeacon(newBeacon);
            emit BeaconUpgraded(newBeacon);
            if (data.length > 0 || forceCall) {
                AddressUpgradeable.functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
            }
        }
    
        /**
         * @dev This empty reserved space is put in place to allow future versions to add new
         * variables without shifting down storage in the inheritance chain.
         * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
         */
        uint256[50] private __gap;
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
    
    pragma solidity ^0.8.2;
    
    import "../../utils/AddressUpgradeable.sol";
    
    /**
     * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
     * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
     * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
     * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
     *
     * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
     * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
     * case an upgrade adds a module that needs to be initialized.
     *
     * For example:
     *
     * [.hljs-theme-light.nopadding]
     * ```solidity
     * contract MyToken is ERC20Upgradeable {
     *     function initialize() initializer public {
     *         __ERC20_init("MyToken", "MTK");
     *     }
     * }
     *
     * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
     *     function initializeV2() reinitializer(2) public {
     *         __ERC20Permit_init("MyToken");
     *     }
     * }
     * ```
     *
     * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
     * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
     *
     * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
     * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
     *
     * [CAUTION]
     * ====
     * Avoid leaving a contract uninitialized.
     *
     * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
     * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
     * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
     *
     * [.hljs-theme-light.nopadding]
     * ```
     * /// @custom:oz-upgrades-unsafe-allow constructor
     * constructor() {
     *     _disableInitializers();
     * }
     * ```
     * ====
     */
    abstract contract Initializable {
        /**
         * @dev Indicates that the contract has been initialized.
         * @custom:oz-retyped-from bool
         */
        uint8 private _initialized;
    
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool private _initializing;
    
        /**
         * @dev Triggered when the contract has been initialized or reinitialized.
         */
        event Initialized(uint8 version);
    
        /**
         * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
         * `onlyInitializing` functions can be used to initialize parent contracts.
         *
         * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
         * constructor.
         *
         * Emits an {Initialized} event.
         */
        modifier initializer() {
            bool isTopLevelCall = !_initializing;
            require(
                (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                "Initializable: contract is already initialized"
            );
            _initialized = 1;
            if (isTopLevelCall) {
                _initializing = true;
            }
            _;
            if (isTopLevelCall) {
                _initializing = false;
                emit Initialized(1);
            }
        }
    
        /**
         * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
         * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
         * used to initialize parent contracts.
         *
         * A reinitializer may be used after the original initialization step. This is essential to configure modules that
         * are added through upgrades and that require initialization.
         *
         * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
         * cannot be nested. If one is invoked in the context of another, execution will revert.
         *
         * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
         * a contract, executing them in the right order is up to the developer or operator.
         *
         * WARNING: setting the version to 255 will prevent any future reinitialization.
         *
         * Emits an {Initialized} event.
         */
        modifier reinitializer(uint8 version) {
            require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
            _initialized = version;
            _initializing = true;
            _;
            _initializing = false;
            emit Initialized(version);
        }
    
        /**
         * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
         * {initializer} and {reinitializer} modifiers, directly or indirectly.
         */
        modifier onlyInitializing() {
            require(_initializing, "Initializable: contract is not initializing");
            _;
        }
    
        /**
         * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
         * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
         * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
         * through proxies.
         *
         * Emits an {Initialized} event the first time it is successfully executed.
         */
        function _disableInitializers() internal virtual {
            require(!_initializing, "Initializable: contract is initializing");
            if (_initialized != type(uint8).max) {
                _initialized = type(uint8).max;
                emit Initialized(type(uint8).max);
            }
        }
    
        /**
         * @dev Returns the highest version that has been initialized. See {reinitializer}.
         */
        function _getInitializedVersion() internal view returns (uint8) {
            return _initialized;
        }
    
        /**
         * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
         */
        function _isInitializing() internal view returns (bool) {
            return _initializing;
        }
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol)
    
    pragma solidity ^0.8.0;
    
    import "../../interfaces/draft-IERC1822Upgradeable.sol";
    import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
    import {Initializable} from "./Initializable.sol";
    
    /**
     * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
     * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
     *
     * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
     * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
     * `UUPSUpgradeable` with a custom implementation of upgrades.
     *
     * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
     *
     * _Available since v4.1._
     */
    abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
        /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
        address private immutable __self = address(this);
    
        /**
         * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
         * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
         * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
         * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
         * fail.
         */
        modifier onlyProxy() {
            require(address(this) != __self, "Function must be called through delegatecall");
            require(_getImplementation() == __self, "Function must be called through active proxy");
            _;
        }
    
        /**
         * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
         * callable on the implementing contract but not through proxies.
         */
        modifier notDelegated() {
            require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
            _;
        }
    
        function __UUPSUpgradeable_init() internal onlyInitializing {
        }
    
        function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
         * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
         *
         * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
         * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
         * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
         */
        function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
            return _IMPLEMENTATION_SLOT;
        }
    
        /**
         * @dev Upgrade the implementation of the proxy to `newImplementation`.
         *
         * Calls {_authorizeUpgrade}.
         *
         * Emits an {Upgraded} event.
         *
         * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
         */
        function upgradeTo(address newImplementation) public virtual onlyProxy {
            _authorizeUpgrade(newImplementation);
            _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
        }
    
        /**
         * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
         * encoded in `data`.
         *
         * Calls {_authorizeUpgrade}.
         *
         * Emits an {Upgraded} event.
         *
         * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
         */
        function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
            _authorizeUpgrade(newImplementation);
            _upgradeToAndCallUUPS(newImplementation, data, true);
        }
    
        /**
         * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
         * {upgradeTo} and {upgradeToAndCall}.
         *
         * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
         *
         * ```solidity
         * function _authorizeUpgrade(address) internal override onlyOwner {}
         * ```
         */
        function _authorizeUpgrade(address newImplementation) internal virtual;
    
        /**
         * @dev This empty reserved space is put in place to allow future versions to add new
         * variables without shifting down storage in the inheritance chain.
         * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
         */
        uint256[50] private __gap;
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
    
    pragma solidity ^0.8.1;
    
    /**
     * @dev Collection of functions related to the address type
     */
    library AddressUpgradeable {
        /**
         * @dev Returns true if `account` is a contract.
         *
         * [IMPORTANT]
         * ====
         * It is unsafe to assume that an address for which this function returns
         * false is an externally-owned account (EOA) and not a contract.
         *
         * Among others, `isContract` will return false for the following
         * types of addresses:
         *
         *  - an externally-owned account
         *  - a contract in construction
         *  - an address where a contract will be created
         *  - an address where a contract lived, but was destroyed
         *
         * Furthermore, `isContract` will also return true if the target contract within
         * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
         * which only has an effect at the end of a transaction.
         * ====
         *
         * [IMPORTANT]
         * ====
         * You shouldn't rely on `isContract` to protect against flash loan attacks!
         *
         * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
         * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
         * constructor.
         * ====
         */
        function isContract(address account) internal view returns (bool) {
            // This method relies on extcodesize/address.code.length, which returns 0
            // for contracts in construction, since the code is only stored at the end
            // of the constructor execution.
    
            return account.code.length > 0;
        }
    
        /**
         * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
         * `recipient`, forwarding all available gas and reverting on errors.
         *
         * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
         * of certain opcodes, possibly making contracts go over the 2300 gas limit
         * imposed by `transfer`, making them unable to receive funds via
         * `transfer`. {sendValue} removes this limitation.
         *
         * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
         *
         * IMPORTANT: because control is transferred to `recipient`, care must be
         * taken to not create reentrancy vulnerabilities. Consider using
         * {ReentrancyGuard} or the
         * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
         */
        function sendValue(address payable recipient, uint256 amount) internal {
            require(address(this).balance >= amount, "Address: insufficient balance");
    
            (bool success, ) = recipient.call{value: amount}("");
            require(success, "Address: unable to send value, recipient may have reverted");
        }
    
        /**
         * @dev Performs a Solidity function call using a low level `call`. A
         * plain `call` is an unsafe replacement for a function call: use this
         * function instead.
         *
         * If `target` reverts with a revert reason, it is bubbled up by this
         * function (like regular Solidity function calls).
         *
         * Returns the raw returned data. To convert to the expected return value,
         * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
         *
         * Requirements:
         *
         * - `target` must be a contract.
         * - calling `target` with `data` must not revert.
         *
         * _Available since v3.1._
         */
        function functionCall(address target, bytes memory data) internal returns (bytes memory) {
            return functionCallWithValue(target, data, 0, "Address: low-level call failed");
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
         * `errorMessage` as a fallback revert reason when `target` reverts.
         *
         * _Available since v3.1._
         */
        function functionCall(
            address target,
            bytes memory data,
            string memory errorMessage
        ) internal returns (bytes memory) {
            return functionCallWithValue(target, data, 0, errorMessage);
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but also transferring `value` wei to `target`.
         *
         * Requirements:
         *
         * - the calling contract must have an ETH balance of at least `value`.
         * - the called Solidity function must be `payable`.
         *
         * _Available since v3.1._
         */
        function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
            return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
        }
    
        /**
         * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
         * with `errorMessage` as a fallback revert reason when `target` reverts.
         *
         * _Available since v3.1._
         */
        function functionCallWithValue(
            address target,
            bytes memory data,
            uint256 value,
            string memory errorMessage
        ) internal returns (bytes memory) {
            require(address(this).balance >= value, "Address: insufficient balance for call");
            (bool success, bytes memory returndata) = target.call{value: value}(data);
            return verifyCallResultFromTarget(target, success, returndata, errorMessage);
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but performing a static call.
         *
         * _Available since v3.3._
         */
        function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
            return functionStaticCall(target, data, "Address: low-level static call failed");
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
         * but performing a static call.
         *
         * _Available since v3.3._
         */
        function functionStaticCall(
            address target,
            bytes memory data,
            string memory errorMessage
        ) internal view returns (bytes memory) {
            (bool success, bytes memory returndata) = target.staticcall(data);
            return verifyCallResultFromTarget(target, success, returndata, errorMessage);
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but performing a delegate call.
         *
         * _Available since v3.4._
         */
        function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
            return functionDelegateCall(target, data, "Address: low-level delegate call failed");
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
         * but performing a delegate call.
         *
         * _Available since v3.4._
         */
        function functionDelegateCall(
            address target,
            bytes memory data,
            string memory errorMessage
        ) internal returns (bytes memory) {
            (bool success, bytes memory returndata) = target.delegatecall(data);
            return verifyCallResultFromTarget(target, success, returndata, errorMessage);
        }
    
        /**
         * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
         * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
         *
         * _Available since v4.8._
         */
        function verifyCallResultFromTarget(
            address target,
            bool success,
            bytes memory returndata,
            string memory errorMessage
        ) internal view returns (bytes memory) {
            if (success) {
                if (returndata.length == 0) {
                    // only check isContract if the call was successful and the return data is empty
                    // otherwise we already know that it was a contract
                    require(isContract(target), "Address: call to non-contract");
                }
                return returndata;
            } else {
                _revert(returndata, errorMessage);
            }
        }
    
        /**
         * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
         * revert reason or using the provided one.
         *
         * _Available since v4.3._
         */
        function verifyCallResult(
            bool success,
            bytes memory returndata,
            string memory errorMessage
        ) internal pure returns (bytes memory) {
            if (success) {
                return returndata;
            } else {
                _revert(returndata, errorMessage);
            }
        }
    
        function _revert(bytes memory returndata, string memory errorMessage) private pure {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
    
    pragma solidity ^0.8.0;
    import {Initializable} from "../proxy/utils/Initializable.sol";
    
    /**
     * @dev Provides information about the current execution context, including the
     * sender of the transaction and its data. While these are generally available
     * via msg.sender and msg.data, they should not be accessed in such a direct
     * manner, since when dealing with meta-transactions the account sending and
     * paying for execution may not be the actual sender (as far as an application
     * is concerned).
     *
     * This contract is only required for intermediate, library-like contracts.
     */
    abstract contract ContextUpgradeable is Initializable {
        function __Context_init() internal onlyInitializing {
        }
    
        function __Context_init_unchained() internal onlyInitializing {
        }
        function _msgSender() internal view virtual returns (address) {
            return msg.sender;
        }
    
        function _msgData() internal view virtual returns (bytes calldata) {
            return msg.data;
        }
    
        function _contextSuffixLength() internal view virtual returns (uint256) {
            return 0;
        }
    
        /**
         * @dev This empty reserved space is put in place to allow future versions to add new
         * variables without shifting down storage in the inheritance chain.
         * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
         */
        uint256[50] private __gap;
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
    
    pragma solidity ^0.8.0;
    
    import "./IERC165Upgradeable.sol";
    import {Initializable} from "../../proxy/utils/Initializable.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 ERC165Upgradeable is Initializable, IERC165Upgradeable {
        function __ERC165_init() internal onlyInitializing {
        }
    
        function __ERC165_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev See {IERC165-supportsInterface}.
         */
        function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
            return interfaceId == type(IERC165Upgradeable).interfaceId;
        }
    
        /**
         * @dev This empty reserved space is put in place to allow future versions to add new
         * variables without shifting down storage in the inheritance chain.
         * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
         */
        uint256[50] private __gap;
    }

    // SPDX-License-Identifier: MIT
    // 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 IERC165Upgradeable {
        /**
         * @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 MathUpgradeable {
        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 SignedMathUpgradeable {
        /**
         * @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/StorageSlot.sol)
    // This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
    
    pragma solidity ^0.8.0;
    
    /**
     * @dev Library for reading and writing primitive types to specific storage slots.
     *
     * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
     * This library helps with reading and writing to such slots without the need for inline assembly.
     *
     * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
     *
     * Example usage to set ERC1967 implementation slot:
     * ```solidity
     * contract ERC1967 {
     *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
     *
     *     function _getImplementation() internal view returns (address) {
     *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
     *     }
     *
     *     function _setImplementation(address newImplementation) internal {
     *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
     *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
     *     }
     * }
     * ```
     *
     * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
     * _Available since v4.9 for `string`, `bytes`._
     */
    library StorageSlotUpgradeable {
        struct AddressSlot {
            address value;
        }
    
        struct BooleanSlot {
            bool value;
        }
    
        struct Bytes32Slot {
            bytes32 value;
        }
    
        struct Uint256Slot {
            uint256 value;
        }
    
        struct StringSlot {
            string value;
        }
    
        struct BytesSlot {
            bytes value;
        }
    
        /**
         * @dev Returns an `AddressSlot` with member `value` located at `slot`.
         */
        function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
         */
        function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
         */
        function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
         */
        function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `StringSlot` with member `value` located at `slot`.
         */
        function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
         */
        function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := store.slot
            }
        }
    
        /**
         * @dev Returns an `BytesSlot` with member `value` located at `slot`.
         */
        function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
         */
        function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := store.slot
            }
        }
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
    
    pragma solidity ^0.8.0;
    
    import "./math/MathUpgradeable.sol";
    import "./math/SignedMathUpgradeable.sol";
    
    /**
     * @dev String operations.
     */
    library StringsUpgradeable {
        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 = MathUpgradeable.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(SignedMathUpgradeable.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, MathUpgradeable.log256(value) + 1);
            }
        }
    
        /**
         * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
         */
        function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
            bytes memory buffer = new bytes(2 * length + 2);
            buffer[0] = "0";
            buffer[1] = "x";
            for (uint256 i = 2 * length + 1; i > 1; --i) {
                buffer[i] = _SYMBOLS[value & 0xf];
                value >>= 4;
            }
            require(value == 0, "Strings: hex length insufficient");
            return string(buffer);
        }
    
        /**
         * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
         */
        function toHexString(address addr) internal pure returns (string memory) {
            return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
        }
    
        /**
         * @dev Returns true if the two strings are equal.
         */
        function equal(string memory a, string memory b) internal pure returns (bool) {
            return keccak256(bytes(a)) == keccak256(bytes(b));
        }
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
    
    pragma solidity ^0.8.0;
    
    /**
     * @dev Interface of the ERC20 standard as defined in the EIP.
     */
    interface IERC20 {
        /**
         * @dev Emitted when `value` tokens are moved from one account (`from`) to
         * another (`to`).
         *
         * Note that `value` may be zero.
         */
        event Transfer(address indexed from, address indexed to, uint256 value);
    
        /**
         * @dev Emitted when the allowance of a `spender` for an `owner` is set by
         * a call to {approve}. `value` is the new allowance.
         */
        event Approval(address indexed owner, address indexed spender, uint256 value);
    
        /**
         * @dev Returns the amount of tokens in existence.
         */
        function totalSupply() external view returns (uint256);
    
        /**
         * @dev Returns the amount of tokens owned by `account`.
         */
        function balanceOf(address account) external view returns (uint256);
    
        /**
         * @dev Moves `amount` tokens from the caller's account to `to`.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * Emits a {Transfer} event.
         */
        function transfer(address to, uint256 amount) external returns (bool);
    
        /**
         * @dev Returns the remaining number of tokens that `spender` will be
         * allowed to spend on behalf of `owner` through {transferFrom}. This is
         * zero by default.
         *
         * This value changes when {approve} or {transferFrom} are called.
         */
        function allowance(address owner, address spender) external view returns (uint256);
    
        /**
         * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * IMPORTANT: Beware that changing an allowance with this method brings the risk
         * that someone may use both the old and the new allowance by unfortunate
         * transaction ordering. One possible solution to mitigate this race
         * condition is to first reduce the spender's allowance to 0 and set the
         * desired value afterwards:
         * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
         *
         * Emits an {Approval} event.
         */
        function approve(address spender, uint256 amount) external returns (bool);
    
        /**
         * @dev Moves `amount` tokens from `from` to `to` using the
         * allowance mechanism. `amount` is then deducted from the caller's
         * allowance.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * Emits a {Transfer} event.
         */
        function transferFrom(address from, address to, uint256 amount) external returns (bool);
    }

    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v4.9.0) (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 >=0.8.0 <0.9.0;
    
    library OvnMath {
    
        uint256 constant BASIS_DENOMINATOR = 10 ** 4;
    
        function abs(uint256 x, uint256 y) internal pure returns (uint256) {
            return (x > y) ? (x - y) : (y - x);
        }
    
        function addBasisPoints(uint256 amount, uint256 basisPoints) internal pure returns (uint256) {
            return amount * (BASIS_DENOMINATOR + basisPoints) / BASIS_DENOMINATOR;
        }
    
        function reverseAddBasisPoints(uint256 amount, uint256 basisPoints) internal pure returns (uint256) {
            return amount * BASIS_DENOMINATOR / (BASIS_DENOMINATOR + basisPoints);
        }
    
        function subBasisPoints(uint256 amount, uint256 basisPoints) internal pure returns (uint256) {
            return amount * (BASIS_DENOMINATOR - basisPoints) / BASIS_DENOMINATOR;
        }
    
        function reverseSubBasisPoints(uint256 amount, uint256 basisPoints) internal pure returns (uint256) {
            return amount * BASIS_DENOMINATOR / (BASIS_DENOMINATOR - basisPoints);
        }
    }

    // SPDX-License-Identifier: GPL-3.0
    
    pragma solidity >=0.8.0 <0.9.0;
    
    interface IMark2Market {
    
        struct StrategyAsset {
            address strategy;
            uint256 netAssetValue;
            uint256 liquidationValue;
        }
    
        function strategyAssets() external view returns (StrategyAsset[] memory);
    
        function totalNetAssets() external view returns (uint256);
    
        function totalLiquidationAssets() external view returns (uint256);
    
    }

    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0 <0.9.0;
    
    import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
    
    interface IPortfolioManager {
    
    
        // --- structs
    
        struct Order {
            bool stake;
            address strategy;
            uint256 amount;
        }
    
        struct StrategyWeight {
            address strategy;
            uint256 minWeight;
            uint256 targetWeight;
            uint256 maxWeight;
            uint256 riskFactor;
            bool enabled;
            bool enabledReward;
        }
    
        struct StrategyWeightWithName {
            StrategyWeight weight;
            string name;
        }
    
        function deposit() external;
    
        /**
         * @dev
         * Withdraw target amount assets from strategies
         * Send amount to Exchanger
         * @return withdrawAmount - how much PortfolioManager unstake from strategies
         * @return isBalanced - executed or not balance function on PortfolioManager
         */
    
        function withdraw(uint256 _amount) external returns (uint256 withdrawAmount, bool isBalanced);
    
        function getStrategyWeight(address strategy) external view returns (StrategyWeight memory);
    
        function getAllStrategyWeights() external view returns (StrategyWeight[] memory);
    
        function claimAndBalance() external;
    
        function balance() external;
    
        function getTotalRiskFactor() external view returns (uint256);
    
        function getAllStrategyWeightsWithNames() external view returns (StrategyWeightWithName[] memory); 
    }

    // SPDX-License-Identifier: UNLICENSED
    pragma solidity ^0.8.0;
    
    interface IRoleManager {
    
    
        function hasRole(bytes32 role, address account) external view returns (bool);
    
    }

    // SPDX-License-Identifier: GPL-3.0
    pragma solidity >=0.8.0 <0.9.0;
    
    import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
    
    interface IStrategy {
    
        event Reward(uint256 amount);
        event PortfolioManagerUpdated(address value);
        event SlippagesUpdated(uint256 swapSlippageBP, uint256 navSlippageBP, uint256 stakeSlippageBP);
        event Stake(uint256 amount);
        event Unstake(uint256 amount, uint256 amountReceived);
    
        function name() external view returns (string memory);
    
        function stake(
            address _asset,
            uint256 _amount
        ) external;
    
        function unstake(
            address _asset,
            uint256 _amount,
            address _beneficiary,
            bool targetIsZero
        ) external returns (uint256);
    
        function netAssetValue() external view returns (uint256);
    
        function liquidationValue() external view returns (uint256);
    
        function claimRewards(address _to) external returns (uint256);
    
    }

    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0 <0.9.0;
    
    import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
    import "@openzeppelin/contracts/utils/Strings.sol";
    
    import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
    import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
    import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
    
    import "@overnight-contracts/common/contracts/libraries/OvnMath.sol";
    
    import "./interfaces/IPortfolioManager.sol";
    import "./interfaces/IMark2Market.sol";
    import "./interfaces/IStrategy.sol";
    import "./interfaces/IRoleManager.sol";
    
    contract PortfolioManager is IPortfolioManager, Initializable, AccessControlUpgradeable, UUPSUpgradeable {
        bytes32 public constant EXCHANGER = keccak256("EXCHANGER");
        bytes32 public constant PORTFOLIO_AGENT_ROLE = keccak256("PORTFOLIO_AGENT_ROLE");
        uint256 public constant TOTAL_WEIGHT = 100000; // 100000 ~ 100%
    
        // ---  fields
    
        address public exchanger;
        IERC20 asset;
        mapping(address => uint256) public strategyWeightPositions;
        StrategyWeight[] public strategyWeights;
        IStrategy public cashStrategy;
        IMark2Market public m2m;
        uint256 public totalRiskFactor;
        uint256 public navSlippageBp;
        IRoleManager public roleManager;
    
        // ---  events
    
        event ExchangerUpdated(address value);
        event Mark2MarketUpdated(address value);
        event RoleManagerUpdated(address roleManager);
        event AssetUpdated(address value);
        event CashStrategyAlreadySet(address value);
        event CashStrategyUpdated(address value);
        event CashStrategyRestaked(uint256 value);
        event Balance();
        event TotalRiskFactorUpdated(uint256 value);
        event Exchanged(uint256 amount, address from, address to);
    
        event StrategyWeightUpdated(
            uint256 index,
            address strategy,
            uint256 minWeight,
            uint256 targetWeight,
            uint256 maxWeight,
            uint256 riskFactor,
            bool enabled,
            bool enabledReward
        );
    
    
        // ---  modifiers
    
        modifier onlyAdmin() {
            require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "Restricted to admins");
            _;
        }
    
        modifier onlyExchanger() {
            require(hasRole(EXCHANGER, msg.sender), "Caller is not the EXCHANGER");
            _;
        }
    
        modifier cashStrategySet() {
            require(address(cashStrategy) != address(0), "Cash strategy not set yet");
            _;
        }
    
        modifier onlyPortfolioAgent() {
            require(roleManager.hasRole(PORTFOLIO_AGENT_ROLE, msg.sender), "Restricted to Portfolio Agent");
            _;
        }
    
        // ---  constructor
    
        /// @custom:oz-upgrades-unsafe-allow constructor
        constructor() initializer {}
    
        function initialize() initializer public {
            __AccessControl_init();
            __UUPSUpgradeable_init();
    
            _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
    
            navSlippageBp = 4; // 0.04%
        }
    
        function _authorizeUpgrade(address newImplementation)
        internal
        onlyRole(DEFAULT_ADMIN_ROLE)
        override
        {}
    
        // ---  setters
    
        function setExchanger(address _exchanger) public onlyAdmin {
            require(_exchanger != address(0), "Zero address not allowed");
    
            revokeRole(EXCHANGER, exchanger);
            grantRole(EXCHANGER, _exchanger);
    
            exchanger = _exchanger;
            emit ExchangerUpdated(_exchanger);
        }
    
        function setMark2Market(address _m2m) public onlyAdmin {
            require(_m2m != address(0), "Zero address not allowed");
    
            m2m = IMark2Market(_m2m);
            emit Mark2MarketUpdated(_m2m);
        }
    
        function setRoleManager(address _roleManager) external onlyAdmin {
            require(_roleManager != address(0), "Zero address not allowed");
            roleManager= IRoleManager(_roleManager);
            emit RoleManagerUpdated(_roleManager);
        }
    
        function setNavSlippageBp(uint256 _navSlippageBp) public onlyPortfolioAgent {
            navSlippageBp = _navSlippageBp;
        }
    
    
        function setAsset(address _asset) public onlyAdmin {
            require(_asset != address(0), "Zero address not allowed");
    
            asset = IERC20(_asset);
            emit AssetUpdated(_asset);
        }
    
        function setCashStrategy(address _cashStrategy) public onlyAdmin {
            require(_cashStrategy != address(0), "Zero address not allowed");
    
            if (_cashStrategy == address(cashStrategy)) {
                emit CashStrategyAlreadySet(_cashStrategy);
                return;
            }
            bool needMoveCash = address(cashStrategy) != address(0);
            if (needMoveCash) {
                // unstake everything
                cashStrategy.unstake(
                    address(asset),
                    0,
                    address(this),
                    true
                );
            }
    
            cashStrategy = IStrategy(_cashStrategy);
    
            if (needMoveCash) {
                uint256 amount = asset.balanceOf(address(this));
                if (amount > 0) {
                    asset.transfer(address(cashStrategy), amount);
                    cashStrategy.stake(
                        address(asset),
                        amount
                    );
                    emit CashStrategyRestaked(amount);
                }
            }
    
            emit CashStrategyUpdated(_cashStrategy);
        }
    
        function setForceCashStrategy(address _cashStrategy) public onlyAdmin {
            require(_cashStrategy != address(0), "Zero address not allowed");
    
            if (_cashStrategy == address(cashStrategy)) {
                emit CashStrategyAlreadySet(_cashStrategy);
                return;
            }
    
            cashStrategy = IStrategy(_cashStrategy);
    
            emit CashStrategyUpdated(_cashStrategy);
        }
    
    
        // ---  logic
    
    
        function deposit() external override onlyExchanger cashStrategySet {
    
            uint256 pmAssetBalance = asset.balanceOf(address(this));
            if (pmAssetBalance == 0) {
                // zero asset amount always fit in cash strategy but also zero stake result
                // so we can return now
                return;
            }
    
            // Stake all free asset amounts to cash Strategy
            asset.transfer(address(cashStrategy), pmAssetBalance);
            cashStrategy.stake(
                address(asset),
                pmAssetBalance
            );
    
        }
    
    
        function withdraw(uint256 _amount)
        external
        override
        onlyExchanger
        cashStrategySet
        returns (uint256, bool) {
    
            // if cash strategy has enough liquidity then prevent balancing
            uint256 liquidationValue = cashStrategy.liquidationValue();
    
            // Flag needed for exchanger for check: oncePerBlock
            bool isBalanced = false;
            if (liquidationValue > _amount) {
                cashStrategy.unstake(
                    address(asset),
                    _amount,
                    address(this),
                    false
                );
            } else {
                // balance to needed amount
                _balance(asset, _amount);
                isBalanced = true;
            }
    
            uint256 currentBalance = asset.balanceOf(address(this));
    
            // `if` is cheaper then `require` when need build complex message
            if (currentBalance < _amount) {
                revert(string(
                    abi.encodePacked(
                        "In portfolioManager not enough for transfer _amount: ",
                        Strings.toString(currentBalance),
                        " < ",
                        Strings.toString(_amount)
                    )
                ));
            }
    
            // transfer back tokens
            asset.transfer(exchanger, _amount);
    
            return (_amount, isBalanced);
        }
    
        function claimAndBalance() external override onlyExchanger {
            _claimRewards();
            _balance();
        }
    
        function _claimRewards() internal {
            StrategyWeight[] memory strategies = getAllStrategyWeights();
    
            for (uint8 i; i < strategies.length; i++) {
                StrategyWeight memory item = strategies[i];
    
                if (item.enabledReward) {
                    IStrategy(item.strategy).claimRewards(address(this));
                }
            }
        }
    
        function balance() public override onlyPortfolioAgent {
            _balance();
            emit Balance();
        }
    
        function _balance() internal {
            // Same to zero withdrawal balance
            _balance(IERC20(address(0)), 0);
        }
    
        function _balance(IERC20 withdrawToken, uint256 withdrawAmount) internal {
    
            // after balancing, we need to make sure that we did not lose money when:
            // 1) transferring from one strategy to another
            // 2) when execute stake/unstake
    
            // allowable losses 0.04% = USD+ mint/redeem fee
            uint256 minNavExpected = OvnMath.subBasisPoints(m2m.totalNetAssets(), navSlippageBp);
            minNavExpected = minNavExpected - withdrawAmount; // subscribe withdraw amount
    
            StrategyWeight[] memory strategies = getAllStrategyWeights();
    
            // 1. calc total asset equivalent
            uint256 totalAsset = asset.balanceOf(address(this));
            uint256 totalWeight = 0;
            for (uint8 i; i < strategies.length; i++) {
                if (!strategies[i].enabled) {// Skip if strategy is not enabled
                    continue;
                }
    
                // UnstakeFull from Strategies with targetWeight == 0
                if (strategies[i].targetWeight == 0) {
                    totalAsset += IStrategy(strategies[i].strategy).unstake(
                        address(asset),
                        0,
                        address(this),
                        true
                    );
                } else {
                    totalAsset += IStrategy(strategies[i].strategy).netAssetValue();
                    totalWeight += strategies[i].targetWeight;
                }
    
            }
    
            if (address(withdrawToken) == address(asset)) {
                require(totalAsset >= withdrawAmount, "Trying withdraw more than liquidity available");
                // it make to move to PortfolioManager extra asset to withdraw
                totalAsset = totalAsset - withdrawAmount;
            }
    
            // 3. calc diffs for strategies liquidity
            Order[] memory stakeOrders = new Order[](strategies.length);
            uint8 stakeOrdersCount = 0;
            for (uint8 i; i < strategies.length; i++) {
    
                if (!strategies[i].enabled) {// Skip if strategy is not enabled
                    continue;
                }
    
                uint256 targetLiquidity;
                if (strategies[i].targetWeight == 0) {
                    targetLiquidity = 0;
                } else {
                    targetLiquidity = (totalAsset * strategies[i].targetWeight) / totalWeight;
                }
    
                uint256 currentLiquidity = IStrategy(strategies[i].strategy).netAssetValue();
                if (targetLiquidity == currentLiquidity) {
                    // skip already at target strategies
                    continue;
                }
    
                if (targetLiquidity < currentLiquidity) {
                    // unstake now
                    IStrategy(strategies[i].strategy).unstake(
                        address(asset),
                        currentLiquidity - targetLiquidity,
                        address(this),
                        false
                    );
                } else {
                    // save to stake later
                    stakeOrders[stakeOrdersCount] = Order(
                        true,
                        strategies[i].strategy,
                        targetLiquidity - currentLiquidity
                    );
                    stakeOrdersCount++;
                }
            }
    
            // 4.  make staking
            for (uint8 i; i < stakeOrdersCount; i++) {
    
                address strategy = stakeOrders[i].strategy;
                uint256 amount = stakeOrders[i].amount;
    
                uint256 currentBalance = asset.balanceOf(address(this));
                if (currentBalance < amount) {
                    amount = currentBalance;
                }
                asset.transfer(strategy, amount);
    
                IStrategy(strategy).stake(
                    address(asset),
                    amount
                );
            }
    
            require(m2m.totalNetAssets() >= minNavExpected, "PM: NAV less than expected");
    
        }
    
        function setStrategyWeights(StrategyWeight[] calldata _strategyWeights) external onlyPortfolioAgent {
    
            require(_strategyWeights.length == strategyWeights.length, 'Wrong number of strategies');
    
            uint256 totalTarget = 0;
    
            bool[] memory updatedStrategies = new bool[](strategyWeights.length);
    
            uint256 _totalRiskFactor = 0;
    
            for (uint8 i = 0; i < _strategyWeights.length; i++) {
                StrategyWeight memory weightNew = _strategyWeights[i];
    
                uint256 index = strategyWeightPositions[weightNew.strategy];
                require(updatedStrategies[index] != true, 'Strategy was updated');
    
    
                StrategyWeight memory weightOld = strategyWeights[index];
    
                require(weightOld.strategy == weightNew.strategy, 'Incorrect strategy index');
                require(weightNew.minWeight <= weightNew.targetWeight, "minWeight shouldn't higher than targetWeight");
                require(weightNew.targetWeight <= weightNew.maxWeight, "targetWeight shouldn't higher than maxWeight");
    
                totalTarget += weightNew.targetWeight;
    
                strategyWeights[index] = weightNew;
    
                updatedStrategies[index] = true;
    
                _totalRiskFactor += (weightNew.riskFactor / 100 * weightNew.targetWeight) / 1000;
    
                emit StrategyWeightUpdated(
                    index,
                    weightNew.strategy,
                    weightNew.minWeight,
                    weightNew.targetWeight,
                    weightNew.maxWeight,
                    weightNew.riskFactor,
                    weightNew.enabled,
                    weightNew.enabledReward
                );
            }
    
            require(totalTarget == TOTAL_WEIGHT, "Total target should equal to TOTAL_WEIGHT");
    
            totalRiskFactor = _totalRiskFactor;
            emit TotalRiskFactorUpdated(_totalRiskFactor);
    
        }
    
        function addStrategy(address _strategy) external onlyAdmin {
    
            for (uint8 i = 0; i < strategyWeights.length; i++) {
                require(strategyWeights[i].strategy != _strategy, 'Strategy already exist');
            }
    
    
            // Strategy is disabled always when only created
            StrategyWeight memory strategyWeight = StrategyWeight(_strategy, 0, 0, 0, 0, false, false);
    
            uint256 index; // default index = 0
            if(strategyWeights.length != 0){
                index = strategyWeights.length; // next index = length (+1)
            }
    
            // Add strategy to last position
            _addStrategyWeightAt(strategyWeight, index);
            strategyWeightPositions[strategyWeight.strategy] = index;
        }
    
        function removeStrategy(address _strategy) external onlyAdmin {
    
            uint256 index = strategyWeightPositions[_strategy];
            StrategyWeight memory weight = strategyWeights[index];
    
            require(weight.strategy == _strategy, 'Address strategy not equals');
            require(weight.targetWeight == 0, 'Target weight must be 0');
            require(IStrategy(weight.strategy).netAssetValue() == 0, 'Strategy nav must be 0');
    
    
            // Remove gap from array
            for (uint i = index; i < strategyWeights.length-1; i++){
    
                StrategyWeight memory _tempWeight = strategyWeights[i+1];
    
                strategyWeights[i] = _tempWeight;
                strategyWeightPositions[_tempWeight.strategy] = i;
            }
    
            strategyWeights.pop();
            delete strategyWeightPositions[_strategy];
    
        }
    
    
        function _addStrategyWeightAt(StrategyWeight memory strategyWeight, uint256 index) internal {
            uint256 currentLength = strategyWeights.length;
            // expand if need
            if (currentLength == 0 || currentLength - 1 < index) {
                uint256 additionalCount = index - currentLength + 1;
                for (uint8 i = 0; i < additionalCount; i++) {
                    strategyWeights.push();
                }
            }
            strategyWeights[index] = strategyWeight;
            emit StrategyWeightUpdated(
                index,
                strategyWeight.strategy,
                strategyWeight.minWeight,
                strategyWeight.targetWeight,
                strategyWeight.maxWeight,
                strategyWeight.riskFactor,
                strategyWeight.enabled,
                strategyWeight.enabledReward
            );
        }
    
    
        function getStrategyWeight(address strategy) public override view returns (StrategyWeight memory) {
    
            if (strategyWeights.length == 0) {
                revert('Strategy not found');
            }
    
            StrategyWeight memory weight = strategyWeights[strategyWeightPositions[strategy]];
            require(weight.strategy == strategy, 'Strategy not found');
            return weight;
        }
    
        function getAllStrategyWeights() public override view returns (StrategyWeight[] memory) {
            return strategyWeights;
        }
    
        function getTotalRiskFactor() external override view returns (uint256) {
            return totalRiskFactor;
        }
    
        function getAllStrategyWeightsWithNames() external override view returns (StrategyWeightWithName[] memory) {
            StrategyWeightWithName[] memory weightsWithName = new StrategyWeightWithName[](strategyWeights.length);
    
            for (uint i = 0; i < strategyWeights.length; i++) {
                string memory name = IStrategy(strategyWeights[i].strategy).name();
                StrategyWeightWithName memory weight = StrategyWeightWithName(strategyWeights[i], name);
                weightsWithName[i] = weight;
            }
    
            return weightsWithName;
        }
    }

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