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// SPDX-License-Identifier: BUSL-1.1
pragma solidity =0.8.19;

import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import {IVotingEscrow} from "../core/interfaces/IVotingEscrow.sol";
import {IManagedNFTStrategy} from "./interfaces/IManagedNFTStrategy.sol";
import {IManagedNFTManager} from "./interfaces/IManagedNFTManager.sol";

/**
 * @title Managed NFT Manager Upgradeable
 * @dev Manages the lifecycle and access control for NFTs used in a managed strategy, leveraging governance and escrow functionalities.
 *      This contract serves as the central point for managing NFTs, their attachments to strategies, and authorized user interactions.
 */
contract ManagedNFTManagerUpgradeable is IManagedNFTManager, AccessControlUpgradeable {
    /**
     * @dev Error indicating an unauthorized access attempt.
     */
    error AccessDenied();

    /**
     * @dev Error indicating an operation attempted on a managed NFT that is currently disabled.
     */
    error ManagedNFTIsDisabled();

    /**
     * @dev Error indicating that a required attachment action was not found or is missing.
     */
    error NotAttached();

    /**
     * @dev Error indicating that the specified token ID does not correspond to a managed NFT.
     */
    error NotManagedNFT();

    /**
     * @dev Error indicating an attempt to reattach an NFT that is already attached to a managed token.
     */
    error AlreadyAttached();

    /**
     * @dev Error indicating a mismatch or incorrect association between user NFTs and managed tokens.
     */
    error IncorrectUserNFT();

    error AddressZero();

    /**
     * @notice Error thrown when a provided detachment-lock duration exceeds the allowed maximum.
     * @param value The duration (in seconds) that was requested to be set.
     * @param max   The maximum allowed duration (in seconds).
     */
    error DetachmentLockDurationTooLong(uint256 value, uint256 max);

    /**
     * @dev Represents the state and association of a user's NFT within the management system.
     * @notice Stores details about an NFT's attachment status, which managed token it's linked to, and any associated amounts.
     */
    struct TokenInfo {
        bool isAttached; // Indicates if the NFT is currently attached to a managed strategy.
        uint256 attachedManagedTokenId; // The ID of the managed token to which this NFT is attached.
        uint256 amount; // The amount associated with this NFT in the context of the managed strategy.
    }

    /**
     * @dev Holds management details about a token within the managed NFT system.
     * @notice Keeps track of a managed token's operational status and authorized users.
     */
    struct ManagedTokenInfo {
        bool isManaged; // True if the token is recognized as a managed token.
        bool isDisabled; // Indicates if the token is currently disabled and not operational.
        address authorizedUser; // Address authorized to perform restricted operations for this managed token.
    }

    /**
     * @dev Role identifier for administrative functions within the NFT management context.
     */
    bytes32 public constant MANAGED_NFT_ADMIN = keccak256("MANAGED_NFT_ADMIN");

    /**
     * @notice Address of the Voting Escrow contract managing voting and staking mechanisms.
     */
    address public override votingEscrow;

    /**
     * @notice Address of the Voter contract responsible for handling governance actions related to managed NFTs.
     */
    address public override voter;

    /**
     * @notice Tracks detailed information about individual tokens.
     */
    mapping(uint256 => TokenInfo) public tokensInfo;

    /**
     * @notice Maintains management state for managed tokens.
     */
    mapping(uint256 => ManagedTokenInfo) public managedTokensInfo;

    /**
     * @notice Tracks whitelisting status of NFTs to control their eligibility within the system.
     */
    mapping(uint256 => bool) public override isWhitelistedNFT;

    /**
     * @notice Retrieves the strategy flags for a given strategy.
     */
    mapping(address => uint8) public override getStrategyFlags;

    /**
     * @notice Default duration (in seconds) of the lock window that prevents detaching/withdrawing after epoch start.
     * @dev Strategies should read this value as the baseline window unless an explicit per-strategy override applies.
     */
    uint256 public override defaultDetachmentLockDuration;
    
    /** 
     * @notice Upper bound for the default detachment-lock duration: 6 days.
     * @dev Used as a hard cap in {setDefaultDetachmentLockDuration}.
     */
    uint256 internal constant _MAX_DETACHMENT_LOCK_DURATION = 6 days;

    /**
     * @dev Ensures that the function can only be called by the designated voter address.
     */
    modifier onlyVoter() {
        if (_msgSender() != voter) {
            revert AccessDenied();
        }
        _;
    }

    /**
     * @dev Ensures that the function can only be called by the designated voting escrow address.
     */
    modifier onlyVotingEscrow() {
        if (_msgSender() != votingEscrow) {
            revert AccessDenied();
        }
        _;
    }

    /**
     * @dev Constructor that disables initialization on implementation.
     */
    constructor() {
        _disableInitializers();
    }

    /**
     * @notice Initializes the Managed NFT Manager contract
     * @param votingEscrow_ The address of the voting escrow contract
     * @param voter_ The address of the voter contract
     */
    function initialize(address votingEscrow_, address voter_) external initializer {
        __AccessControl_init();

        _checkAddressZero(votingEscrow_);
        _checkAddressZero(voter_);

        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(MANAGED_NFT_ADMIN, msg.sender);

        votingEscrow = votingEscrow_;
        voter = voter_;
    }

    /**
     * @notice Set the default duration (in seconds) of the detachment/withdrawal lock window for strategies.
     * @dev
     * - The new duration must not exceed {MAX_DETACHMENT_LOCK_DURATION}.
     * - Updates the public state variable {defaultDetachmentLockDuration}.
     * - Emits {SetDefaultDetachmentLockDuration} on success.
     * @param newDuration_ The new default lock duration, in seconds.
     */
    function setDefaultDetachmentLockDuration(uint256 newDuration_)
        external
        onlyRole(DEFAULT_ADMIN_ROLE)
    {
        if (newDuration_ > _MAX_DETACHMENT_LOCK_DURATION) {
            revert DetachmentLockDurationTooLong(newDuration_, _MAX_DETACHMENT_LOCK_DURATION);
        }
        uint256 old = defaultDetachmentLockDuration;
        defaultDetachmentLockDuration = newDuration_;
        emit SetDefaultDetachmentLockDuration(old, newDuration_);
    }

    /**
     * @notice Creates a managed NFT and attaches it to a strategy
     * @param strategy_ The strategy to which the managed NFT will be attached
     */
    function createManagedNFT(address strategy_) external onlyRole(MANAGED_NFT_ADMIN) returns (uint256 managedTokenId) {
        managedTokenId = IVotingEscrow(votingEscrow).createManagedNFT(strategy_);
        managedTokensInfo[managedTokenId] = ManagedTokenInfo(true, false, address(0));
        IManagedNFTStrategy(strategy_).attachManagedNFT(managedTokenId);
        emit CreateManagedNFT(msg.sender, strategy_, managedTokenId);
    }

    /**
     * @notice Updates the strategy flags for a specific strategy.
     * @dev Sets the flags for the given strategy and emits the `SetStrategyFlags` event.
     *      This function can only be called by an account with the `MANAGED_NFT_ADMIN` role.
     * @param strategy_ The address of the strategy to update.
     * @param flags_ The new flags to assign to the strategy.
     * @custom:emits SetStrategyFlags
     * - When the strategy flags are updated, this event is emitted with the new flags and the strategy address.
     * @custom:requirements
     * - The caller must have the `MANAGED_NFT_ADMIN` role.
     */
    function setStrategyFlags(address strategy_, uint8 flags_) external onlyRole(MANAGED_NFT_ADMIN) {
        getStrategyFlags[strategy_] = flags_;
        emit SetStrategyFlags(strategy_, flags_);
    }

    /**
     * @notice Authorizes a user for a specific managed token ID
     * @param managedTokenId_ The token ID to authorize
     * @param authorizedUser_ The user being authorized
     */
    function setAuthorizedUser(uint256 managedTokenId_, address authorizedUser_) external onlyRole(MANAGED_NFT_ADMIN) {
        if (!managedTokensInfo[managedTokenId_].isManaged) {
            revert NotManagedNFT();
        }
        managedTokensInfo[managedTokenId_].authorizedUser = authorizedUser_;
        emit SetAuthorizedUser(managedTokenId_, authorizedUser_);
    }

    /**
     * @notice Toggles the disabled state of a managed NFT
     * @param managedTokenId_ The ID of the managed token to toggle
     * @dev Enables or disables a managed token to control its operational status, with an event emitted for state change.
     */
    function toggleDisableManagedNFT(uint256 managedTokenId_) external onlyRole(MANAGED_NFT_ADMIN) {
        if (!managedTokensInfo[managedTokenId_].isManaged) {
            revert NotManagedNFT();
        }
        bool isDisable = !managedTokensInfo[managedTokenId_].isDisabled;
        managedTokensInfo[managedTokenId_].isDisabled = isDisable;
        emit ToggleDisableManagedNFT(msg.sender, managedTokenId_, isDisable);
    }

    /**
     * @notice Handles the deposit of tokens to an NFT attached to a managed token.
     * @dev Called by the Voting Escrow contract when tokens are deposited to an NFT that is attached to a managed NFT.
     *      The function verifies the token is attached, checks if it is disabled, and updates the token's state.
     * @param tokenId_ The token ID of the user's NFT.
     * @param amount_ The amount of tokens to deposit.
     * @custom:error IncorrectUserNFT Thrown if the provided token ID is not attached or if it is a managed token itself.
     * @custom:error ManagedNFTIsDisabled Thrown if the managed token is currently disabled.
     */
    function onDepositToAttachedNFT(uint256 tokenId_, uint256 amount_) external onlyVotingEscrow {
        if (!tokensInfo[tokenId_].isAttached || managedTokensInfo[tokenId_].isManaged) {
            revert IncorrectUserNFT();
        }
        uint256 managedTokenId = tokensInfo[tokenId_].attachedManagedTokenId;

        if (managedTokensInfo[managedTokenId].isDisabled) {
            revert ManagedNFTIsDisabled();
        }

        tokensInfo[tokenId_].amount += amount_;
        IManagedNFTStrategy(IVotingEscrow(votingEscrow).ownerOf(managedTokenId)).onAttach(tokenId_, amount_);
    }

    /**
     * @notice Handler for attaching to a managed NFT
     * @param tokenId_ The token ID of the user's NFT
     * @param managedTokenId_ The managed token ID to attach to
     */
    function onAttachToManagedNFT(uint256 tokenId_, uint256 managedTokenId_) external onlyVoter {
        ManagedTokenInfo memory managedTokenInfo = managedTokensInfo[managedTokenId_];
        if (!managedTokenInfo.isManaged) {
            revert NotManagedNFT();
        }

        if (managedTokenInfo.isDisabled) {
            revert ManagedNFTIsDisabled();
        }

        if (managedTokensInfo[tokenId_].isManaged || tokensInfo[tokenId_].isAttached) {
            revert IncorrectUserNFT();
        }

        uint256 userBalance = IVotingEscrow(votingEscrow).onAttachToManagedNFT(tokenId_, managedTokenId_);
        tokensInfo[tokenId_] = TokenInfo(true, managedTokenId_, userBalance);

        IManagedNFTStrategy(IVotingEscrow(votingEscrow).ownerOf(managedTokenId_)).onAttach(tokenId_, userBalance);
    }

    /**
     * @notice Handler for detaching from a managed NFT
     * @param tokenId_ The token ID of the user's NFT
     */
    function onDettachFromManagedNFT(uint256 tokenId_) external onlyVoter {
        TokenInfo memory tokenInfo = tokensInfo[tokenId_];

        if (!tokenInfo.isAttached) {
            revert NotAttached();
        }

        assert(tokenInfo.attachedManagedTokenId != 0);

        uint256 lockedRewards = IManagedNFTStrategy(IVotingEscrow(votingEscrow).ownerOf(tokenInfo.attachedManagedTokenId)).onDettach(
            tokenId_,
            tokenInfo.amount
        );

        IVotingEscrow(votingEscrow).onDettachFromManagedNFT(tokenId_, tokenInfo.attachedManagedTokenId, tokenInfo.amount + lockedRewards);

        delete tokensInfo[tokenId_];
    }

    /**
     * @notice Sets or unsets an NFT as whitelisted
     * @param tokenId_ The token ID of the NFT
     * @param isWhitelisted_ True if whitelisting, false otherwise
     */
    function setWhitelistedNFT(uint256 tokenId_, bool isWhitelisted_) external onlyRole(MANAGED_NFT_ADMIN) {
        isWhitelistedNFT[tokenId_] = isWhitelisted_;
        emit SetWhitelistedNFT(tokenId_, isWhitelisted_);
    }

    /**
     * @notice Retrieves the managed token ID attached to a specific user NFT.
     * @dev Returns the managed token ID to which the user's NFT is currently attached.
     * @param tokenId_ The token ID of the user's NFT.
     * @return The ID of the managed token to which the NFT is attached.
     */
    function getAttachedManagedTokenId(uint256 tokenId_) external view returns (uint256) {
        return tokensInfo[tokenId_].attachedManagedTokenId;
    }

    /**
     * @notice Checks if a specific user NFT is currently attached to a managed token.
     * @dev Returns true if the user's NFT is attached to any managed token.
     * @param tokenId_ The token ID of the user's NFT.
     * @return True if the NFT is attached, false otherwise.
     */
    function isAttachedNFT(uint256 tokenId_) external view returns (bool) {
        return tokensInfo[tokenId_].isAttached;
    }

    /**
     * @notice Determines if a managed token is currently disabled.
     * @dev Checks the disabled status of a managed token to prevent operations during maintenance or shutdown periods.
     * @param managedTokenId_ The ID of the managed token.
     * @return True if the managed token is disabled, false otherwise.
     */
    function isDisabledNFT(uint256 managedTokenId_) external view returns (bool) {
        return managedTokensInfo[managedTokenId_].isDisabled;
    }

    /**
     * @notice Checks if a given address has administrative privileges.
     * @dev Determines whether an address holds the MANAGED_NFT_ADMIN role, granting administrative capabilities.
     * @param account_ The address to check for administrative privileges.
     * @return True if the address has administrative privileges, false otherwise.
     */
    function isAdmin(address account_) external view returns (bool) {
        return account_ == address(this) || super.hasRole(MANAGED_NFT_ADMIN, account_);
    }

    /**
     * @notice Checks if a user is authorized to interact with a specific managed token.
     * @dev Determines whether an address is the designated authorized user for a managed token.
     * @param managedTokenId_ The ID of the managed token.
     * @param account_ The address to verify authorization.
     * @return True if the address is authorized, false otherwise.
     */
    function isAuthorized(uint256 managedTokenId_, address account_) external view returns (bool) {
        return managedTokensInfo[managedTokenId_].authorizedUser == account_;
    }

    /**
     * @notice Determines if a token ID corresponds to a managed NFT within the system.
     * @dev Checks the management status of a token ID to validate its inclusion in managed operations.
     * @param managedTokenId_ The ID of the token to check.
     * @return True if the token is a managed NFT, false otherwise.
     */
    function isManagedNFT(uint256 managedTokenId_) external view override returns (bool) {
        return managedTokensInfo[managedTokenId_].isManaged;
    }

    /**
     * @dev Checked provided address on zero value, throw AddressZero error in case when addr_ is zero
     *
     * @param addr_ The address which will checked on zero
     */
    function _checkAddressZero(address addr_) internal pure {
        if (addr_ == address(0)) {
            revert AddressZero();
        }
    }

    /**
     * @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 (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 v4.9.0) (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) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// 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/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
pragma solidity >=0.8.0;

import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";

/**
 * @title IVotingEscrow
 * @notice Interface for Voting Escrow, allowing users to lock tokens in exchange for veNFTs that are used in governance and other systems.
 */
interface IVotingEscrow is IERC721Upgradeable {
    /**
     * @notice Enum representing the types of deposits that can be made.
     * @dev Defines the context in which a deposit is made:
     * - `DEPOSIT_FOR_TYPE`: Regular deposit for an existing lock.
     * - `CREATE_LOCK_TYPE`: Creating a new lock.
     * - `INCREASE_UNLOCK_TIME`: Increasing the unlock time for an existing lock.
     * - `MERGE_TYPE`: Merging two locks together.
     */
    enum DepositType {
        DEPOSIT_FOR_TYPE,
        CREATE_LOCK_TYPE,
        INCREASE_UNLOCK_TIME,
        MERGE_TYPE
    }

    /**
     * @notice Structure representing the state of a token.
     * @dev This includes information about the lock, voting status, attachment status,
     *      the block of the last transfer, and the index (epoch) of its latest checkpoint.
     * @param locked The locked balance (amount + end timestamp + permanent status) of the token.
     * @param isVoted Whether the token has been used to vote in the current epoch.
     * @param isAttached Whether the token is attached to a managed NFT.
     * @param lastTranferBlock The block number of the last transfer.
     * @param pointEpoch The epoch (checkpoint index) for the token’s most recent voting power change.
     */
    struct TokenState {
        LockedBalance locked;
        bool isVoted;
        bool isAttached;
        uint256 lastTranferBlock;
        uint256 pointEpoch;
    }

    /**
     * @notice Structure representing a locked balance.
     * @dev Contains the amount locked, the end timestamp of the lock, and whether the lock is permanent.
     * @param amount The amount of tokens locked (signed integer for slope calculations).
     * @param end The timestamp when the lock ends (0 if permanently locked).
     * @param isPermanentLocked Whether the lock is permanent (no unlock time).
     */
    struct LockedBalance {
        int128 amount;
        uint256 end;
        bool isPermanentLocked;
    }

    /**
     * @notice Structure representing a point in time for calculating voting power.
     * @dev Used for slope/bias math across epochs.
     * @param bias The bias of the lock, representing the remaining voting power.
     * @param slope The rate at which voting power (bias) decays over time.
     * @param ts The timestamp of the checkpoint.
     * @param blk The block number of the checkpoint.
     * @param permanent The permanently locked amount at this checkpoint.
     */
    struct Point {
        int128 bias;
        int128 slope; // -dweight / dt
        uint256 ts;
        uint256 blk; // block
        int128 permanent;
    }

    /**
     * @notice Emitted when a boost is applied to a token's lock.
     * @param tokenId The ID of the token that received the boost.
     * @param value The amount of tokens used as a boost.
     */
    event Boost(uint256 indexed tokenId, uint256 value);

    /**
     * @notice Emitted when a deposit is made into a lock.
     * @param provider The address of the entity making the deposit.
     * @param tokenId The ID of the token associated with the deposit.
     * @param value The amount of tokens deposited.
     * @param locktime The time (timestamp) until which the lock is extended.
     * @param deposit_type The type of deposit (see {DepositType}).
     * @param ts The timestamp when the deposit was made.
     */
    event Deposit(address indexed provider, uint256 tokenId, uint256 value, uint256 indexed locktime, DepositType deposit_type, uint256 ts);

    /**
     * @notice Emitted when tokens are deposited to an attached NFT.
     * @param provider The address of the user making the deposit.
     * @param tokenId The ID of the NFT receiving the deposit.
     * @param managedTokenId The ID of the managed token receiving the voting power.
     * @param value The amount of tokens deposited.
     */
    event DepositToAttachedNFT(address indexed provider, uint256 tokenId, uint256 managedTokenId, uint256 value);

    /**
     * @notice Emitted when a withdrawal is made from a lock.
     * @param provider The address of the entity making the withdrawal.
     * @param tokenId The ID of the token associated with the withdrawal.
     * @param value The amount of tokens withdrawn.
     * @param ts The timestamp when the withdrawal occurred.
     */
    event Withdraw(address indexed provider, uint256 tokenId, uint256 value, uint256 ts);

    /**
     * @notice Emitted when the merging process of two veNFT locks is initiated.
     * @param tokenFromId The ID of the token being merged from.
     * @param tokenToId The ID of the token being merged into.
     */
    event MergeInit(uint256 tokenFromId, uint256 tokenToId);

    /**
     * @notice Emitted when two veNFT locks are successfully merged.
     * @param provider The address of the entity initiating the merge.
     * @param tokenIdFrom The ID of the token being merged from.
     * @param tokenIdTo The ID of the token being merged into.
     */
    event Merge(address indexed provider, uint256 tokenIdFrom, uint256 tokenIdTo);

    /**
     * @notice Emitted when the total supply of voting power changes.
     * @param prevSupply The previous total supply of voting power.
     * @param supply The new total supply of voting power.
     */
    event Supply(uint256 prevSupply, uint256 supply);

    /**
     * @notice Emitted when an address associated with the contract is updated.
     * @param key The key representing the contract being updated.
     * @param value The new address of the contract.
     */
    event UpdateAddress(string key, address indexed value);

    /**
     * @notice Emitted when a token is permanently locked by a user.
     * @param sender The address of the user who initiated the lock.
     * @param tokenId The ID of the token that has been permanently locked.
     */
    event LockPermanent(address indexed sender, uint256 indexed tokenId);

    /**
     * @notice Emitted when a token is unlocked from a permanent lock state by a user.
     * @param sender The address of the user who initiated the unlock.
     * @param tokenId The ID of the token that has been unlocked from its permanent state.
     */
    event UnlockPermanent(address indexed sender, uint256 indexed tokenId);

    /**
     * @notice Emitted when a veNEST NFT lock is burned and the underlying NEST is released for use in bribes.
     * @param sender The address which initiated the burn-to-bribes operation.
     * @param tokenId The identifier of the veNEST NFT that was burned.
     * @param value The amount of NEST tokens released from the burned lock.
     */
    event BurnToBribes(address indexed sender, uint256 indexed tokenId, uint256 value);

    /**
     * @notice Returns the address of the token used in voting escrow.
     * @return The address of the token contract.
     */
    function token() external view returns (address);

    /**
     * @notice Returns the address of the voter contract.
     * @return The address of the voter.
     */
    function voter() external view returns (address);

    /**
     * @notice Checks if the specified address is approved or the owner of the given token.
     * @param sender The address to check.
     * @param tokenId The ID of the token to check.
     * @return True if `sender` is approved or the owner of `tokenId`, otherwise false.
     */
    function isApprovedOrOwner(address sender, uint256 tokenId) external view returns (bool);

    /**
     * @notice Checks if a specific NFT token is transferable.
     * @dev In the current implementation, this function always returns `true`,
     *      meaning the contract does not enforce non-transferability at code level.
     * @param tokenId_ The ID of the NFT to check.
     * @return bool Always returns true in the current version.
     */
    function isTransferable(uint256 tokenId_) external view returns (bool);

    /**
     * @notice Retrieves the state of a specific NFT.
     * @param tokenId_ The ID of the NFT to query.
     * @return The current {TokenState} of the specified NFT.
     */
    function getNftState(uint256 tokenId_) external view returns (TokenState memory);

    /**
     * @notice Returns the total supply of voting power at the current block timestamp.
     * @return The total supply of voting power.
     */
    function votingPowerTotalSupply() external view returns (uint256);

    /**
     * @notice Returns the balance of a veNFT at the current block timestamp.
     * @dev Balance is determined by the lock’s slope and bias at this moment.
     * @param tokenId_ The ID of the veNFT to query.
     * @return The current voting power (balance) of the veNFT.
     */
    function balanceOfNFT(uint256 tokenId_) external view returns (uint256);

    /**
     * @notice Returns the balance of a veNFT at the current block timestamp, ignoring ownership changes.
     * @dev This function is similar to {balanceOfNFT} but does not zero out the balance
     *      if the token was transferred in the same block.
     * @param tokenId_ The ID of the veNFT to query.
     * @return The current voting power (balance) of the veNFT.
     */
    function balanceOfNftIgnoreOwnershipChange(uint256 tokenId_) external view returns (uint256);

    /**
     * @notice Updates the address of a specified contract.
     * @param key_ The key representing the contract.
     * @param value_ The new address of the contract.
     * @dev Reverts with `InvalidAddressKey` if the key does not match any known setting.
     * Emits an {UpdateAddress} event on success.
     */
    function updateAddress(string memory key_, address value_) external;

    /**
     * @notice Hooks the voting state for a specified NFT.
     * @dev Only callable by the voter contract. Used to mark a veNFT as having voted or not.
     * @param tokenId_ The ID of the NFT.
     * @param state_ True if the NFT is now considered “voted,” false otherwise.
     * @custom:error AccessDenied If called by any address other than the voter.
     */
    function votingHook(uint256 tokenId_, bool state_) external;

    /**
     * @notice Creates a new lock for a specified recipient.
     * @param amount_ The amount of tokens to lock.
     * @param lockDuration_ The duration in seconds for which the tokens will be locked.
     * @param to_ The address of the recipient who will receive the new veNFT.
     * @param shouldBoosted_ Whether the deposit should attempt to get a veBoost.
     * @param withPermanentLock_ Whether the lock should be created as a permanent lock.
     * @param managedTokenIdForAttach_ (Optional) The ID of the managed NFT to attach. Pass 0 to ignore.
     * @return The ID of the newly created veNFT.
     * @dev Reverts with `InvalidLockDuration` if lockDuration_ is 0 or too large.
     *      Reverts with `ValueZero` if amount_ is 0.
     * Emits a {Deposit} event on success.
     */
    function createLockFor(
        uint256 amount_,
        uint256 lockDuration_,
        address to_,
        bool shouldBoosted_,
        bool withPermanentLock_,
        uint256 managedTokenIdForAttach_
    ) external returns (uint256);

    /**
     * @notice Deposits tokens for a specific NFT, increasing its locked balance.
     * @param tokenId_ The ID of the veNFT to top up.
     * @param amount_ The amount of tokens to deposit.
     * @param shouldBoosted_ Whether this deposit should attempt to get a veBoost.
     * @param withPermanentLock_ Whether to apply a permanent lock alongside the deposit.
     * @dev Reverts with `ValueZero` if amount_ is 0.
     * Emits a {Deposit} event upon success.
     */
    function depositFor(uint256 tokenId_, uint256 amount_, bool shouldBoosted_, bool withPermanentLock_) external;

    /**
     * @notice Increases the unlock time for an existing lock.
     * @param tokenId_ The ID of the veNFT to extend.
     * @param lockDuration_ The additional duration in seconds to add to the current unlock time.
     * @dev Reverts with `InvalidLockDuration` if the new unlock time is invalid.
     *      Reverts with `AccessDenied` if the caller is not the owner or approved.
     * Emits a {Deposit} event with the deposit type set to {INCREASE_UNLOCK_TIME}.
     */
    function increase_unlock_time(uint256 tokenId_, uint256 lockDuration_) external;

    /**
     * @notice Deposits tokens and extends the lock duration for a veNFT in one call.
     * @dev This may trigger veBoost if conditions are met.
     * @param tokenId_ The ID of the veNFT.
     * @param amount_ The amount of tokens to deposit.
     * @param lockDuration_ The duration in seconds to add to the current unlock time.
     * Emits one {Deposit} event for the deposit itself
     * and another {Deposit} event for the unlock time increase.
     */
    function depositWithIncreaseUnlockTime(uint256 tokenId_, uint256 amount_, uint256 lockDuration_) external;

    /**
     * @notice Deposits tokens directly into a veNFT that is attached to a managed NFT.
     * @dev This updates the locked balance on the managed NFT, adjusts total supply,
     *      and emits {DepositToAttachedNFT} and {Supply} events.
     * @param tokenId_ The ID of the attached veNFT.
     * @param amount_ The amount of tokens to deposit.
     * @custom:error NotManagedNft if the managed token ID is invalid or not recognized.
     */
    function depositToAttachedNFT(uint256 tokenId_, uint256 amount_) external;

    /**
     * @notice Withdraws tokens from an expired lock (non-permanent).
     * @param tokenId_ The ID of the veNFT to withdraw from.
     * @dev Reverts with `AccessDenied` if caller is not owner or approved.
     *      Reverts with `TokenNoExpired` if the lock is not yet expired.
     *      Reverts with `PermanentLocked` if the lock is permanent.
     * Emits a {Withdraw} event and a {Supply} event.
     */
    function withdraw(uint256 tokenId_) external;

    /**
     * @notice Merges one veNFT (tokenFromId_) into another (tokenToId_).
     * @param tokenFromId_ The ID of the source veNFT being merged.
     * @param tokenToId_ The ID of the target veNFT receiving the locked tokens.
     * @dev Reverts with `MergeTokenIdsTheSame` if both IDs are the same.
     *      Reverts with `AccessDenied` if the caller isn't owner or approved for both IDs.
     * Emits a {MergeInit} event at the start, and a {Merge} event upon completion.
     * Also emits a {Deposit} event reflecting the updated lock in the target token.
     */
    function merge(uint256 tokenFromId_, uint256 tokenToId_) external;

    /**
     * @notice Permanently locks a veNFT.
     * @param tokenId_ The ID of the veNFT to be permanently locked.
     * @dev Reverts with `AccessDenied` if caller isn't owner or approved.
     *      Reverts with `TokenAttached` if the token is attached to a managed NFT.
     *      Reverts with `PermanentLocked` if the token already permanent lcoked
     * Emits {LockPermanent} on success.
     */
    function lockPermanent(uint256 tokenId_) external;

    /**
     * @notice Unlocks a permanently locked veNFT, reverting it to a temporary lock.
     * @param tokenId_ The ID of the veNFT to unlock.
     * @dev Reverts with `AccessDenied` if caller isn't owner or approved.
     *      Reverts with `TokenAttached` if the token is attached.
     *      Reverts with `NotPermanentLocked` if the lock isn't actually permanent.
     * Emits {UnlockPermanent} on success.
     */
    function unlockPermanent(uint256 tokenId_) external;

    /**
     * @notice Creates a new managed NFT for a given recipient.
     * @param recipient_ The address that will receive the newly created managed NFT.
     * @return The ID of the newly created managed NFT.
     * @dev Reverts with `AccessDenied` if caller is not the managed NFT manager.
     */
    function createManagedNFT(address recipient_) external returns (uint256);

    /**
     * @notice Attaches a veNFT (user’s token) to a managed NFT, combining their locked balances.
     * @param tokenId_ The ID of the user’s veNFT being attached.
     * @param managedTokenId_ The ID of the managed NFT.
     * @return The amount of tokens locked during the attachment.
     * @dev Reverts with `AccessDenied` if caller is not the managed NFT manager.
     *      Reverts with `ZeroVotingPower` if the user’s token has zero voting power.
     *      Reverts with `NotManagedNft` if the target is not recognized as a managed NFT.
     */
    function onAttachToManagedNFT(uint256 tokenId_, uint256 managedTokenId_) external returns (uint256);

    /**
     * @notice Detaches a veNFT from a managed NFT.
     * @param tokenId_ The ID of the user’s veNFT being detached.
     * @param managedTokenId_ The ID of the managed NFT from which it’s being detached.
     * @param newBalance_ The new locked balance the veNFT will hold after detachment.
     * @dev Reverts with `AccessDenied` if caller is not the managed NFT manager.
     *      Reverts with `NotManagedNft` if the target is not recognized as a managed NFT.
     */
    function onDettachFromManagedNFT(uint256 tokenId_, uint256 managedTokenId_, uint256 newBalance_) external;

    /**
     * @notice Burns a veNEST NFT to reclaim the underlying NEST tokens for use in bribes.
     * @dev Must be called by `customBribeRewardRouter`.
     *      The token must not be permanently locked or attached.
     *      Also resets any votes before burning.
     * Emits a {BurnToBribes} event on successful burn.
     * @param tokenId_ The ID of the veNEST NFT to burn.
     */
    function burnToBribes(uint256 tokenId_) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

/**
 * @title Interface for Managed NFT Manager
 * @dev Defines the functions and events for managing NFTs, including attaching/detaching to strategies, authorization, and administrative checks.
 */
interface IManagedNFTManager {
    /**
     * @dev Emitted when the disabled state of a managed NFT is toggled.
     * @param sender The address that triggered the state change.
     * @param tokenId The ID of the managed NFT affected.
     * @param isDisable True if the NFT is now disabled, false if it is enabled.
     */
    event ToggleDisableManagedNFT(address indexed sender, uint256 indexed tokenId, bool indexed isDisable);

    /**
     * @dev Emitted when a new managed NFT is created and attached to a strategy.
     * @param sender The address that performed the creation.
     * @param strategy The address of the strategy to which the NFT is attached.
     * @param tokenId The ID of the newly created managed NFT.
     */
    event CreateManagedNFT(address indexed sender, address indexed strategy, uint256 indexed tokenId);

    /**
     * @dev Emitted when an NFT is whitelisted or removed from the whitelist.
     * @param tokenId The ID of the NFT being modified.
     * @param isWhitelisted True if the NFT is being whitelisted, false if it is being removed from the whitelist.
     */
    event SetWhitelistedNFT(uint256 indexed tokenId, bool indexed isWhitelisted);

    /**
     * @dev Emitted when an authorized user is set for a managed NFT.
     * @param managedTokenId The ID of the managed NFT.
     * @param authorizedUser The address being authorized.
     */
    event SetAuthorizedUser(uint256 indexed managedTokenId, address authorizedUser);

    /**
     * @dev Emitted when the strategy flags for a specific strategy are updated.
     * @param strategy The address of the strategy whose flags are being updated.
     * @param flags The new set of flags assigned to the strategy.
     */
    event SetStrategyFlags(address indexed strategy, uint8 flags);

    /**
     * @notice Emitted when the default detachment-lock duration is updated.
     * @param previousDuration The previous default duration (in seconds).
     * @param newDuration      The new default duration (in seconds).
     */
    event SetDefaultDetachmentLockDuration(
        uint256 previousDuration,
        uint256 newDuration
    );
    /**
     * @notice Checks if a managed NFT is currently disabled.
     * @param managedTokenId_ The ID of the managed NFT.
     * @return True if the managed NFT is disabled, false otherwise.
     */
    function isDisabledNFT(uint256 managedTokenId_) external view returns (bool);

    /**
     * @notice Determines if a token ID is recognized as a managed NFT within the system.
     * @param managedTokenId_ The ID of the token to check.
     * @return True if the token is a managed NFT, false otherwise.
     */
    function isManagedNFT(uint256 managedTokenId_) external view returns (bool);

    /**
     * @notice Checks if an NFT is whitelisted within the management system.
     * @param tokenId_ The ID of the NFT to check.
     * @return True if the NFT is whitelisted, false otherwise.
     */
    function isWhitelistedNFT(uint256 tokenId_) external view returns (bool);

    /**
     * @notice Verifies if a user's NFT is attached to any managed NFT.
     * @param tokenId_ The ID of the user's NFT.
     * @return True if the NFT is attached, false otherwise.
     */
    function isAttachedNFT(uint256 tokenId_) external view returns (bool);

    /**
     * @notice Checks if a given account is an administrator of the managed NFT system.
     * @param account_ The address to check.
     * @return True if the address is an admin, false otherwise.
     */
    function isAdmin(address account_) external view returns (bool);

    /**
     * @notice Retrieves the managed token ID that a user's NFT is attached to.
     * @param tokenId_ The ID of the user's NFT.
     * @return The ID of the managed token to which the NFT is attached.
     */
    function getAttachedManagedTokenId(uint256 tokenId_) external view returns (uint256);

    /**
     * @notice Address of the Voting Escrow contract managing voting and staking mechanisms.
     */
    function votingEscrow() external view returns (address);

    /**
     * @notice Address of the Voter contract responsible for handling governance actions related to managed NFTs.
     */
    function voter() external view returns (address);

    /**
     * @notice Verifies if a given address is authorized to manage a specific managed NFT.
     * @param managedTokenId_ The ID of the managed NFT.
     * @param account_ The address to verify.
     * @return True if the address is authorized, false otherwise.
     */
    function isAuthorized(uint256 managedTokenId_, address account_) external view returns (bool);

    /**
     * @notice Retrieves the strategy flags for a given strategy.
     * @param strategy_ The address of the strategy to retrieve flags for.
     * @return The flags assigned to the specified strategy.
     */
    function getStrategyFlags(address strategy_) external view returns (uint8);
    
    /**
     * @notice Returns the default detachment/withdrawal lock window duration in seconds.
     * @dev Strategies should treat this as the baseline lock window after epoch start
     *      unless an explicit per-strategy override applies.
     * @return duration The default lock duration, in seconds.
     */
    function defaultDetachmentLockDuration() external view returns (uint256 duration);

    /**
     * @notice Assigns an authorized user for a managed NFT.
     * @param managedTokenId_ The ID of the managed NFT.
     * @param authorizedUser_ The address to authorize.
     */
    function setAuthorizedUser(uint256 managedTokenId_, address authorizedUser_) external;

    /**
     * @notice Creates a managed NFT and attaches it to a strategy
     * @param strategy_ The strategy to which the managed NFT will be attached
     */
    function createManagedNFT(address strategy_) external returns (uint256 managedTokenId);

    /**
     * @notice Toggles the disabled state of a managed NFT
     * @param managedTokenId_ The ID of the managed token to toggle
     * @dev Enables or disables a managed token to control its operational status, with an event emitted for state change.
     */
    function toggleDisableManagedNFT(uint256 managedTokenId_) external;

    /**
     * @notice Attaches a user's NFT to a managed NFT, enabling it within a specific strategy.
     * @param tokenId_ The user's NFT token ID.
     * @param managedTokenId The managed NFT token ID.
     */
    function onAttachToManagedNFT(uint256 tokenId_, uint256 managedTokenId) external;

    /**
     * @notice Detaches a user's NFT from a managed NFT, disabling it within the strategy.
     * @param tokenId_ The user's NFT token ID.
     */
    function onDettachFromManagedNFT(uint256 tokenId_) external;

    /**
     * @notice Handles the deposit of tokens to an NFT attached to a managed token.
     * @dev Called by the Voting Escrow contract when tokens are deposited to an NFT that is attached to a managed NFT.
     *      The function verifies the token is attached, checks if it is disabled, and updates the token's state.
     * @param tokenId_ The token ID of the user's NFT.
     * @param amount_ The amount of tokens to deposit.
     * @custom:error IncorrectUserNFT Thrown if the provided token ID is not attached or if it is a managed token itself.
     * @custom:error ManagedNFTIsDisabled Thrown if the managed token is currently disabled.
     */
    function onDepositToAttachedNFT(uint256 tokenId_, uint256 amount_) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

/**
 * @title IManagedNFTStrategy
 * @dev Interface for strategies managing NFTs ,
 *      participate in voting, and claim rewards.
 */
interface IManagedNFTStrategy {
    /**
     * @dev Emitted when the name of the strategy is changed.
     * @param newName The new name that has been set for the strategy.
     */
    event SetName(string newName);

    /**
     * @dev Emitted when the description of the strategy is changed.
     * @param newDescription The new description that has been set for the strategy.
     */
    event SetDescription(string newDescription);

    /**
     * @dev Emitted when the description of the strategy is changed.
     * @param newCreator The new description that has been set for the strategy.
     */
    event SetCreator(string newCreator);

    /**
     * @dev Emitted when a new managed NFT is successfully attached to the strategy.
     * @param managedTokenId The ID of the managed NFT that has been attached.
     */
    event AttachedManagedNFT(uint256 indexed managedTokenId);

    /**
     * @notice Called when an NFT is attached to a strategy.
     * @dev Allows the strategy to perform initial setup or balance tracking when an NFT is first attached.
     * @param tokenId The ID of the NFT being attached.
     * @param userBalance The balance of governance tokens associated with the NFT at the time of attachment.
     */
    function onAttach(uint256 tokenId, uint256 userBalance) external;

    /**
     * @notice Called when an NFT is detached from a strategy.
     * @dev Allows the strategy to clean up or update records when an NFT is removed.
     * @param tokenId The ID of the NFT being detached.
     * @param userBalance The remaining balance of governance tokens associated with the NFT at the time of detachment.
     */
    function onDettach(uint256 tokenId, uint256 userBalance) external returns (uint256 lockedRewards);

    /**
     * @notice Gets the address of the managed NFT manager contract.
     * @return The address of the managed NFT manager.
     */
    function managedNFTManager() external view returns (address);

    /**
     * @notice Gets the address of the voting escrow contract used for locking governance tokens.
     * @return The address of the voting escrow contract.
     */
    function votingEscrow() external view returns (address);

    /**
     * @notice Gets the address of the voter contract that coordinates governance actions.
     * @return The address of the voter contract.
     */
    function voter() external view returns (address);

    /**
     * @notice Retrieves the name of the strategy.
     * @return A string representing the name of the strategy.
     */
    function name() external view returns (string memory);

    /**
     * @notice Retrieves the creator name of the strategy.
     * Empty string by default
     * @return A string representing the name of the strategy.
     */
    function creator() external view returns (string memory);

    /**
     * @notice Retrieves the description of the strategy.
     * Empty string by default
     * @return A string representing the name of the strategy.
     */
    function description() external view returns (string memory);

    /**
     * @notice Retrieves the ID of the managed token.
     * @return The token ID used by the strategy.
     */
    function managedTokenId() external view returns (uint256);

    /**
     * @notice Submits a governance vote on behalf of the strategy.
     * @param poolVote_ An array of addresses representing the pools to vote on.
     * @param weights_ An array of weights corresponding to each pool vote.
     */
    function vote(address[] calldata poolVote_, uint256[] calldata weights_) external;

    /**
     * @notice Claims rewards allocated to the managed NFTs from specified gauges.
     * @param gauges_ An array of addresses representing the gauges from which rewards are to be claimed.
     */
    function claimRewards(address[] calldata gauges_) external;

    /**
     * @notice Claims bribes allocated to the managed NFTs for specific tokens and pools.
     * @param bribes_ An array of addresses representing the bribe pools.
     * @param tokens_ An array of token addresses for each bribe pool where rewards can be claimed.
     */
    function claimBribes(address[] calldata bribes_, address[][] calldata tokens_) external;

    /**
     * @notice Attaches a specific managed NFT to this strategy, setting up necessary governance or reward mechanisms.
     * @dev This function can only be called by administrators. It sets the `managedTokenId` and ensures that the token is
     *      valid and owned by this contract. Emits an `AttachedManagedNFT` event upon successful attachment.
     * @param managedTokenId_ The token ID of the NFT to be managed by this strategy.
     * throws AlreadyAttached if the strategy is already attached to a managed NFT.
     * throws IncorrectManagedTokenId if the provided token ID is not managed or not owned by this contract.
     */
    function attachManagedNFT(uint256 managedTokenId_) external;

    /**
     * @notice Returns whether detachment is currently time-locked and the active window bounds.
     * @dev
     * - `epochStart` is implementation-defined (e.g., aligned to the start of the current week).
     * - The effective lock duration may be the per-strategy override or the manager default.
     * @return locked      True if detachment is currently blocked by the time-lock window.
     * @return epochStart  The epoch start timestamp used to compute the lock window.
     * @return lockEnd     The timestamp when detachment becomes allowed (end of the lock window).
     */
    function dettachLockWindowInfo()
        external
        view
        returns (
            bool locked,
            uint256 epochStart,
            uint256 lockEnd
        );

    /**
     * @notice Per-strategy override for the detachment lock duration (in seconds).
     * @dev If this value is zero, the strategy MUST fall back to the manager’s
     *      {defaultDetachmentLockDuration()}.
     * @return duration The configured per-strategy duration (0 = use manager default).
     */
    function detachmentLockDuration() external view returns (uint256 duration);
}

{
  "evmVersion": "paris",
  "viaIR": true,
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "metadata": {
    "bytecodeHash": "none"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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