// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
import "./ContextMess.sol"; 
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
contract MESS is ContextMess, ERC20 ,Pausable{
    struct TransferParam {
        address to;
        uint256 amount;
    }
    constructor(address config_) ERC20("MESS", "MESS") {
        _checkConfig(IConfig(config_));
    } 
    // =============================================================
    // about mint burn and transfer
    // relate with "@openzeppelin/contracts/security/Pausable.sol";
    // =============================================================
    // mint token to treasury wallet，only minter can do this.
    function mint(uint256 amount) public isMinter {
        address to = _TreasuryWalletContract();
        super._mint(to, amount);
    }
    //burn token , only burner can do this.
    function burn(uint256 amount) public isBurner {
        _burn(_msgSender(), amount);
    }
    //batch transfer token to other address
    function batchTransfer(TransferParam[] memory transfers) public isTransferer {
        for (uint256 i = 0; i < transfers.length; i++) {
            super._transfer(_TreasuryWalletContract(), transfers[i].to, transfers[i].amount);
        }
    }
    //deny transfer when paused or address in the blacklist
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal override whenNotPaused isNotInTheBlacklist(from) isNotInTheBlacklist(to) {
        super._beforeTokenTransfer(from, to, amount);
    }
    // =============================================================
    // about pause and unpause
    // relate with "@openzeppelin/contracts/security/Pausable.sol";
    // =============================================================
    //pause transfer function，only pauser can do this.
    function pause() public isPauser {
        _pause();
    }
    //unpause transfer function
    function unpause() public isPauser {
        _unpause();
    }
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);
    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);
    bool private _paused;
    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }
    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }
    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }
    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }
    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }
    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }
    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }
    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private _totalSupply;
    string private _name;
    string private _symbol;
    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }
    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }
    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }
    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }
    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }
    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }
    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }
    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }
    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }
    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }
    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }
    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }
        return true;
    }
    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        _beforeTokenTransfer(from, to, amount);
        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }
        emit Transfer(from, to, amount);
        _afterTokenTransfer(from, to, amount);
    }
    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");
        _beforeTokenTransfer(address(0), account, amount);
        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);
        _afterTokenTransfer(address(0), account, amount);
    }
    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");
        _beforeTokenTransfer(account, address(0), amount);
        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }
        emit Transfer(account, address(0), amount);
        _afterTokenTransfer(account, address(0), amount);
    }
    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }
    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}
//SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
import "../IConfig.sol";
import "../Registry.sol";
contract ContextMess  {
    
    IConfig public config;
    function _checkConfig(IConfig config_) internal {
        require(config_.version() > 0 || config_.supportsInterface(type(IConfig).interfaceId), "ERC20: not a valid config contract");
        config = config_;
    }
    function _TreasuryWalletContract() internal view returns (address) {
        bytes32 _key = Registry.TREASURYWALLET_KEY;
        address to = _getContractAddress(_key);
        require(to != address(0), "ERC20: treasurywallet contract not found");
        return to;
    }
    function _getContractAddress(bytes32 key) internal view returns (address) {
        (bytes32 typeID, bytes memory data) = config.getRawValue(key);
        return bytesToAddress(typeID, data);
    }
    function bytesToAddress(bytes32 typeID, bytes memory data) internal pure returns (address addr) {
        require(typeID == Registry.ADDRESS_HASH, "ERC20: wrong typeID");
        addr = abi.decode(data, (address));
    }
    modifier onlyAdmin() {
        require(config.hasRole(Registry.ADMIN_ROLE, msg.sender), "ERC20: caller is not the admin role");
        _;
    }
    modifier isMinter() {
        require(config.hasRole(Registry.MINTER_ROLE, msg.sender), "ERC20: caller is not the minter role");
        _;
    }
    modifier isBurner() {
        require(config.hasRole(Registry.BURNER_ROLE, msg.sender), "ERC20: caller is not the burner role");
        _;
    }
    modifier isTransferer() {
        require(config.hasRole(Registry.TRANSFER_ROLE, msg.sender), "ERC20: caller is not the transferer role");
        _;
    }
    modifier isNotInTheBlacklist(address account) {
        require(config.hasRole(Registry.SUPER_ADMIN_ROLE, account) || config.hasRole(Registry.ADMIN_ROLE, account)  || !config.hasRole(Registry.BLACKLIST_ROLE, account), "SN119:  address is restricted at the moment");
        _;
    }
    modifier isPauser() {
        require(config.hasRole(Registry.PAUSER_ROLE, msg.sender), "ERC20: caller is not the pauser role");
        _;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
library Registry {
    
    // =============================================================
    // about role
    // =============================================================
    // SUPER_ADMIN_ROLE
    bytes32 internal constant SUPER_ADMIN_ROLE = 0x0000000000000000000000000000000000000000000000000000000000000000;
    // keccak256("ADMIN_ROLE");
    bytes32 internal constant ADMIN_ROLE = 0xa49807205ce4d355092ef5a8a18f56e8913cf4a201fbe287825b095693c21775;
    // keccak256("minter.role")
    bytes32 internal constant MINTER_ROLE = 0xb7400b17e52d343f741138df9e91f7b1f847b285f261edc36ddf5d104892f80d;
    // keccak256("burner.role")
    bytes32 internal constant BURNER_ROLE = 0x67ddb8e48ce0d66032a44701598dde318e9e357db26bb3a846b15f87ffdb8369;
    // keccak256("transfer.role")
    bytes32 internal constant TRANSFER_ROLE = 0xd9075b04fc9576b33d6513403323ecc334609c7afb3004ab47244ebef1d5ccd1;
    // keccak256("blacklist.role")
    bytes32 internal constant BLACKLIST_ROLE = 0xeceef7797af2e02f3081f740231d7a12b7f97400383d3ffdfa8953c62acb4708;
    // keccak256("pauser.role")
    bytes32 internal constant PAUSER_ROLE = 0xa67d36adcd6e3e45eaf6d65fa285a008bff25153247f18ac567589f1f32c3460;
    // =============================================================
    // about KV
    // =============================================================
    // keccak256("treasurywallet.key");
    bytes32 internal constant TREASURYWALLET_KEY = 0xe3bb4fe41787a18688c48ea64caf92a2bae2555227aaef6d464b886efb453118;
    // keccak256("operationwallet.key")
    bytes32 internal constant OPERATIONWALLET_KEY = 0x265545640c0c4e566d10fc3f1073314df9d9f30336f39c054903d28124930538;
    // keccak256("hotwallet.key")
    bytes32 internal constant HOTWALLET_KEY = 0x5a9627b84796698a4e50d2d61a91ce59358fe3945a467b2b94968cb135c41531;
    // keccak256("uint256");
    bytes32 internal constant UINT256_HASH = 0xec13d6d12b88433319b64e1065a96ea19cd330ef6603f5f6fb685dde3959a320;
    // keccak256("address");
    bytes32 internal constant ADDRESS_HASH = 0x421683f821a0574472445355be6d2b769119e8515f8376a1d7878523dfdecf7b;
}// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
interface IConfig {
  function version() external pure returns (uint256 v);
  function getRawValue(bytes32 key) external view returns(bytes32 typeID, bytes memory data);
  function hasRole(bytes32 role, address account) external view returns(bool has);
  function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);
    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);
    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);
    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);
    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);
    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);
    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);
    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);
    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
import "./IGlobalConfig.sol";
import "../library/Registry.sol";
import "../library/LEnumerableMetadata.sol";
import "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
contract GlobalConfig is IGlobalConfig, AccessControlEnumerable {
    using LEnumerableMetadata for LEnumerableMetadata.MetadataSet;
    LEnumerableMetadata.MetadataSet private _configSet;
    // roleID -> fatherRoleID.
    // one addr in fatherRole, the addr also in children role.
    mapping(bytes32=>bytes32) public fatherRoleMap;
    constructor(address superAdmin) {
        if (superAdmin == address(0)) revert("GlobalConfig cannot be created");
        _setupRole(Registry.SUPER_ADMIN_ROLE, superAdmin);
        _configSet._init();
    }
    function supportsInterface(bytes4 interfaceId) public view virtual override(IConfig, AccessControlEnumerable) returns (bool) {
      return interfaceId == type(IGlobalConfig).interfaceId || interfaceId == type(IConfig).interfaceId || super.supportsInterface(interfaceId);
    }
    function version() external pure returns (uint256 v) {
        return 1;
    }
    function revokeRole(bytes32 role, address account) external override isRoleAdmin(role){
        require (role != Registry.SUPER_ADMIN_ROLE || getRoleMemberCount(role) > 1, "SC101: one super admin exists at a minimum");
        _revokeRole(role, account);
    }
    function renounceRole(bytes32 role, address account) external override {
        require (role != Registry.SUPER_ADMIN_ROLE || getRoleMemberCount(role) > 1, "SC101: one super admin exists at a minimum");
        super.renounceRole(role, account);
    }
    function hasRole(bytes32 role, address account) external view override(IAccessControl, IConfig) returns (bool has) {
      if(super.hasRole(role, account)){
        return true;
      }
      // the father role map default value is super admin role.
      if(super.hasRole(fatherRoleMap[role], account)){
        return true;
      }
      // if addr is role admin, so the addr has the role.
      if(super.hasRole(getRoleAdmin(role), account)){
        return true;
      }
      
      if (super.hasRole(Registry.SUPER_ADMIN_ROLE, account)) {
        return true;
      }
      return false;
    }
    function checkAdmin(address account) public view returns(bool) {
      // hasRole always check superadmin.
      return hasRole(Registry.ADMIN_ROLE, account);
    }
    modifier isAdmin() {
        require(checkAdmin(msg.sender), "SC102: invoke restricted to admin role");
        _;
    }
    modifier isSuperAdmin(){
        _checkRole(Registry.SUPER_ADMIN_ROLE, msg.sender);
        _;
    }
    modifier checkNotAdminRole(bytes32 role){
      require(role != Registry.SUPER_ADMIN_ROLE && role != Registry.ADMIN_ROLE, "SC103: ask for neither super admin nor admin role");
      _;
    }
    modifier isRoleAdmin(bytes32 role){
      require(super.hasRole(getRoleAdmin(role), msg.sender) || super.hasRole(Registry.SUPER_ADMIN_ROLE, msg.sender), "SC104: not role admin");
      _;
    }
    function setFatherRole(bytes32 role, bytes32 fatherRole) external isSuperAdmin checkNotAdminRole(role){
      require(getRoleAdmin(fatherRole) != role, "SC105: fatherRole admin can't equal role");
      require(role != fatherRole, "SC106: role == fatherRole");
      fatherRoleMap[role] = fatherRole;
    }
    function setRoleAdmin(bytes32 role, bytes32 adminRole) public isSuperAdmin checkNotAdminRole(role){
      require(fatherRoleMap[adminRole] != role, "SC105: adminRole's admin can't equal role");
      require(role != adminRole, "SC106: role == adminRole");
      _setRoleAdmin(role, adminRole);
    }
    function grantRole(bytes32 role, address account) public override isRoleAdmin(role){
      super._grantRole(role, account);
    }
    function getRawValue(bytes32 key) public view override returns(bytes32 typeID, bytes memory data){
        return _configSet._get(key);
    }
    function getKey(string memory keyStr) public pure override returns(bytes32 key){
        return LEnumerableMetadata._getKeyID(keyStr);
    }
    function getAllkeys(string memory startKey, uint256 pageSize) public view returns (string[] memory keys) {
        return _configSet._getAllKeys(startKey, pageSize);
    }
    function setKVs(bytes[] memory mds) public isAdmin {
        _configSet._setBytesSlice(mds);
        for (uint256 i = 0; i < mds.length; i++) {
            (string memory keyStr, bytes32 typeID, bytes memory data) = abi.decode(mds[i], (string, bytes32, bytes));
            emit SetKVEvent(getKey(keyStr), keyStr, typeID, data);
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol)
pragma solidity ^0.8.0;
import "./IAccessControlEnumerable.sol";
import "./AccessControl.sol";
import "../utils/structs/EnumerableSet.sol";
/**
 * @dev Extension of {AccessControl} that allows enumerating the members of each role.
 */
abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl {
    using EnumerableSet for EnumerableSet.AddressSet;
    mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers;
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControlEnumerable).interfaceId || super.supportsInterface(interfaceId);
    }
    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) {
        return _roleMembers[role].at(index);
    }
    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) {
        return _roleMembers[role].length();
    }
    /**
     * @dev Overload {_grantRole} to track enumerable memberships
     */
    function _grantRole(bytes32 role, address account) internal virtual override {
        super._grantRole(role, account);
        _roleMembers[role].add(account);
    }
    /**
     * @dev Overload {_revokeRole} to track enumerable memberships
     */
    function _revokeRole(bytes32 role, address account) internal virtual override {
        super._revokeRole(role, account);
        _roleMembers[role].remove(account);
    }
}
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./LChainLink.sol";
library LEnumerableMetadata {
    using LChainLink for LChainLink.Link;
    // chain.
    // "map key" is keccak256("key")
    struct Metadata {
        string key;
        bytes32 typeID;
        bytes data;
        LChainLink.Link link;
    }
    struct MetadataSet {
        mapping(bytes32 => Metadata) kvData;
        uint256 size;
    }
    function _getKeyID(string memory key) internal pure returns (bytes32) {
        require(bytes(key).length != 0, "key is empty");
        bytes32 id = keccak256(abi.encodePacked(key));
        require(!LChainLink._isEmpty(id), "id error");
        return id;
    }
    function _init(MetadataSet storage m) internal {
        m.kvData[LChainLink.SENTINEL_ID].link._init();
    }
    function _checkKvDatas(bytes[] memory kvDatas) internal pure {
        for (uint256 i = 0; i < kvDatas.length; i++) {
            _parseKvData(kvDatas[i]);
        }
    }
    function _parseKvData(bytes memory data)
        internal
        pure
        returns (
            string memory,
            bytes32,
            bytes memory
        )
    {
        return abi.decode(data, (string, bytes32, bytes));
    }
    function _encodeKvData(
        string memory key,
        bytes32 typeID,
        bytes memory data,
        string memory desc
    ) internal pure returns (bytes memory) {
        return abi.encode(key, typeID, data, desc);
    }
    function _setBytesSlice(MetadataSet storage m, bytes[] memory mds)
        internal
    {
        for (uint256 i = 0; i < mds.length; i++) {
            (
                string memory key,
                bytes32 typeID,
                bytes memory data
            ) = _parseKvData(mds[i]);
            if (data.length == 0) {
                _del(m, key);
            } else {
                _addOrChange(m, key, typeID, data);
            }
        }
    }
    function _addOrChange(
        MetadataSet storage m,
        string memory key,
        bytes32 typeID,
        bytes memory data
    ) internal {
        bytes32 keyID = _getKeyID(key);
        Metadata storage md = m.kvData[keyID];
        if (!md.link._isEmpty()) {
            // change data
            if (md.typeID != typeID) {
                md.typeID = typeID;
            }
            md.data = data;
            return;
        }
        // add data
        md.key = key;
        md.typeID = typeID;
        md.data = data;
        Metadata storage sentinel = m.kvData[LChainLink.SENTINEL_ID];
        md.link._addItemLink(
            sentinel.link,
            m.kvData[sentinel.link.next].link,
            keyID
        );
        m.size++;
    }
    function _del(MetadataSet storage m, string memory key) internal {
        bytes32 keyID = _getKeyID(key);
        Metadata storage md = m.kvData[keyID];
        if (md.link._isEmpty()) {
            return;
        }
        md.link._delItemLink(
            m.kvData[md.link.pre].link,
            m.kvData[md.link.next].link
        );
        delete m.kvData[keyID];
        m.size--;
    }
    function _getByKey(MetadataSet storage m, string memory key)
        internal
        view
        returns (bytes32 typeID, bytes memory data)
    {
        return _get(m, _getKeyID(key));
    }
    function _get(MetadataSet storage m, bytes32 keyID)
        internal
        view
        returns (bytes32 typeID, bytes memory data)
    {
        Metadata storage md = m.kvData[keyID];
        return (md.typeID, md.data);
    }
    function _getAllKeys(
        MetadataSet storage m,
        string memory startKey,
        uint256 pageSize
    ) internal view returns (string[] memory keys) {
        keys = new string[](pageSize);
        uint256 idx = 0;
        bytes32 nowKeyID;
        if (bytes(startKey).length == 0) {
            nowKeyID = LChainLink.SENTINEL_ID;
        } else {
            nowKeyID = _getKeyID(startKey);
        }
        nowKeyID = m.kvData[nowKeyID].link._getNextID();
        while (idx < pageSize && !LChainLink._isEmpty(nowKeyID)) {
            Metadata storage md = m.kvData[nowKeyID];
            keys[idx] = md.key;
            nowKeyID = md.link._getNextID();
            idx++;
        }
        assembly {
            mstore(keys, idx)
        }
        return keys;
    }
    // return encode(string key, bytes32 typeID, bytes value)[]
    function _getAll(
        MetadataSet storage m,
        string memory startKey,
        uint256 pageSize
    ) internal view returns (bytes[] memory datas) {
        datas = new bytes[](pageSize);
        uint256 idx = 0;
        bytes32 nowKeyID;
        if (bytes(startKey).length == 0) {
            nowKeyID = LChainLink.SENTINEL_ID;
        } else {
            nowKeyID = _getKeyID(startKey);
        }
        nowKeyID = m.kvData[nowKeyID].link._getNextID();
        while (idx < pageSize && !LChainLink._isEmpty(nowKeyID)) {
            Metadata storage md = m.kvData[nowKeyID];
            datas[idx] = abi.encode(md.key, md.typeID, md.data);
            nowKeyID = md.link._getNextID();
            idx++;
        }
        assembly {
            mstore(datas, idx)
        }
        return datas;
    }
}// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
library Registry {
  /***************************** ROLE NAME CONSTANT VARIABLES  ***********************************/
  // SUPER_ADMIN_ROLE
  bytes32 internal constant SUPER_ADMIN_ROLE = 0x0000000000000000000000000000000000000000000000000000000000000000;
  // keccak256("ADMIN_ROLE");
  bytes32 internal constant ADMIN_ROLE = 0xa49807205ce4d355092ef5a8a18f56e8913cf4a201fbe287825b095693c21775;
  // keccak256("only.on.chain");
  bytes32 internal constant ONLY_ON_CHAIN = 0x0b7322ebc56f27a124c063802688bbc3635a2ce3f24abda3e4adaec5fce31196;
}
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
import "./IConfig.sol";
interface IGlobalConfig is IConfig {
  event SetKVEvent(bytes32 indexed key, string keyStr, bytes32 typeID, bytes data);
  function getKey(string memory keyStr) external pure returns(bytes32 key);
  
  function setKVs(bytes[] memory mds) external;
}
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
library LChainLink {
    struct Link {
        bytes32 id;
        bytes32 next;
        bytes32 pre;
    }
    bytes32 internal constant SENTINEL_ID =
        bytes32(
            0x0000000000000000000000000000000000000000000000000000000000000001
        );
    address internal constant SENTINEL_ADDR = address(0x1);
    //////////////////// for bytes32
    function _isEmpty(bytes32 id) internal pure returns (bool) {
        if (id == bytes32(0x0) || id == SENTINEL_ID) {
            return true;
        }
        return false;
    }
    function _isEmpty(Link storage link) internal view returns (bool) {
        if (
            link.id == bytes32(0x0) ||
            (link.next == link.pre && link.next == bytes32(0x0))
        ) {
            return true;
        }
        return false;
    }
    function _init(Link storage link) internal {
        if (!_isEmpty(link)) {
            return;
        }
        link.id = SENTINEL_ID;
        link.next = SENTINEL_ID;
        link.pre = SENTINEL_ID;
    }
    function _addItemLink(
        Link storage item,
        Link storage sentinel,
        Link storage next,
        bytes32 itemID
    ) internal {
        require(
            sentinel.next == next.id && next.pre == SENTINEL_ID,
            "add link error"
        );
        item.id = itemID;
        item.next = sentinel.next;
        item.pre = SENTINEL_ID;
        next.pre = itemID;
        sentinel.next = itemID;
    }
    function _delItemLink(
        Link storage item,
        Link storage pre,
        Link storage next
    ) internal {
        require(pre.next == item.id && next.pre == item.id, "del link error");
        item.id = bytes32(0x0);
        item.next = bytes32(0x0);
        item.pre = bytes32(0x0);
        pre.next = next.id;
        next.pre = pre.id;
    }
    function _getNextID(Link storage item) internal view returns (bytes32) {
        // require(item.next != bytes32(0x0), "get link next error");
        return item.next;
    }
    function _getPreID(Link storage item) internal view returns (bytes32) {
        // require(item.pre != bytes32(0x0), "get link pre error");
        return item.pre;
    }
    //////////////////// for address
    function _isEmpty(address addr) internal pure returns (bool) {
        return _isEmpty(bytes32(uint256(uint160(addr))));
    }
    function _addItemLink(
        Link storage item,
        Link storage sentinel,
        Link storage next,
        address itemAddr
    ) internal {
        _addItemLink(item, sentinel, next, bytes32(uint256(uint160(itemAddr))));
    }
    function _getNextAddr(Link storage item) internal view returns (address) {
        return address(uint160(uint256(_getNextID(item))));
    }
    function _getPreAddr(Link storage item) internal view returns (address) {
        return address(uint160(uint256(_getPreID(item))));
    }
}// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
interface IConfig {
  function version() external pure returns (uint256 v);
  function getRawValue(bytes32 key) external view returns(bytes32 typeID, bytes memory data);
  function hasRole(bytes32 role, address account) external view returns(bool has);
  function supportsInterface(bytes4 interfaceId) external view returns (bool);
  
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/structs/EnumerableSet.sol)
pragma solidity ^0.8.0;
/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 *  Trying to delete such a structure from storage will likely result in data corruption, rendering the structure unusable.
 *  See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 *  In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.
    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }
    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }
    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];
        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.
            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;
            if (lastIndex != toDeleteIndex) {
                bytes32 lastValue = set._values[lastIndex];
                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }
            // Delete the slot where the moved value was stored
            set._values.pop();
            // Delete the index for the deleted slot
            delete set._indexes[value];
            return true;
        } else {
            return false;
        }
    }
    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }
    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }
    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }
    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }
    // Bytes32Set
    struct Bytes32Set {
        Set _inner;
    }
    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }
    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }
    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }
    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }
    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }
    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }
    // AddressSet
    struct AddressSet {
        Set _inner;
    }
    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }
    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }
    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }
    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }
    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }
    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;
        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }
        return result;
    }
    // UintSet
    struct UintSet {
        Set _inner;
    }
    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }
    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }
    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }
    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }
    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;
        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }
        return result;
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";
/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * 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}:
 *
 * ```
 * 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.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }
    mapping(bytes32 => RoleData) private _roles;
    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }
    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }
    /**
     * @dev Revert with a standard message if `_msgSender()` is missing `role`.
     * Overriding this function changes the behavior of the {onlyRole} modifier.
     *
     * Format of the revert message is described in {_checkRole}.
     *
     * _Available since v4.6._
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }
    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(uint160(account), 20),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }
    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }
    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }
    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }
    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");
        _revokeRole(role, account);
    }
    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * May emit a {RoleGranted} event.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }
    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }
    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }
    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol)
pragma solidity ^0.8.0;
import "./IAccessControl.sol";
/**
 * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
 */
interface IAccessControlEnumerable is IAccessControl {
    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) external view returns (address);
    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) external view returns (uint256);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
pragma solidity ^0.8.0;
/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);
    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);
    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;
    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;
    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_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) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }
    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }
    /**
     * @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] = _HEX_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);
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}