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// SPDX-License-Identifier: AGPL-3.0
pragma solidity 0.8.19;

import { ITokenBridge } from "./interfaces/ITokenBridge.sol";
import { IMessageService } from "../interfaces/IMessageService.sol";

import { IERC20PermitUpgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20PermitUpgradeable.sol";
import { IERC20MetadataUpgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol";
import { IERC20Upgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
import { SafeERC20Upgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";
import { BeaconProxy } from "@openzeppelin/contracts/proxy/beacon/BeaconProxy.sol";
import { ReentrancyGuardUpgradeable } from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";

import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

import { BridgedToken } from "./BridgedToken.sol";
import { MessageServiceBase } from "../messageService/MessageServiceBase.sol";

import { TokenBridgePauseManager } from "../lib/TokenBridgePauseManager.sol";
import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import { StorageFiller39 } from "./lib/StorageFiller39.sol";
import { PermissionsManager } from "../lib/PermissionsManager.sol";

import { Utils } from "../lib/Utils.sol";
/**
 * @title Linea Canonical Token Bridge
 * @notice Contract to manage cross-chain ERC20 bridging.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
contract TokenBridge is
  ITokenBridge,
  Initializable,
  ReentrancyGuardUpgradeable,
  AccessControlUpgradeable,
  MessageServiceBase,
  TokenBridgePauseManager,
  PermissionsManager,
  StorageFiller39
{
  using Utils for *;
  using SafeERC20Upgradeable for IERC20Upgradeable;

  /// @dev This is the ABI version and not the reinitialize version.
  string public constant CONTRACT_VERSION = "1.0";

  /// @notice Role used for setting the message service address.
  bytes32 public constant SET_MESSAGE_SERVICE_ROLE = keccak256("SET_MESSAGE_SERVICE_ROLE");

  /// @notice Role used for setting the remote token bridge address.
  bytes32 public constant SET_REMOTE_TOKENBRIDGE_ROLE = keccak256("SET_REMOTE_TOKENBRIDGE_ROLE");

  /// @notice Role used for setting a reserved token address.
  bytes32 public constant SET_RESERVED_TOKEN_ROLE = keccak256("SET_RESERVED_TOKEN_ROLE");

  /// @notice Role used for removing a reserved token address.
  bytes32 public constant REMOVE_RESERVED_TOKEN_ROLE = keccak256("REMOVE_RESERVED_TOKEN_ROLE");

  /// @notice Role used for setting a custom token contract address.
  bytes32 public constant SET_CUSTOM_CONTRACT_ROLE = keccak256("SET_CUSTOM_CONTRACT_ROLE");

  // Special addresses used in the mappings to mark specific states for tokens.
  /// @notice EMPTY means a token is not present in the mapping.
  address internal constant EMPTY = address(0x0);
  /// @notice RESERVED means a token is reserved and cannot be bridged.
  address internal constant RESERVED_STATUS = address(0x111);
  /// @notice NATIVE means a token is native to the current local chain.
  address internal constant NATIVE_STATUS = address(0x222);
  /// @notice DEPLOYED means the bridged token contract has been deployed on the remote chain.
  address internal constant DEPLOYED_STATUS = address(0x333);

  // solhint-disable-next-line var-name-mixedcase
  /// @dev The permit selector to be used when decoding the permit.
  bytes4 internal constant _PERMIT_SELECTOR = IERC20PermitUpgradeable.permit.selector;

  /// @notice These 3 variables are used for the token metadata.
  bytes private constant METADATA_NAME = abi.encodeCall(IERC20MetadataUpgradeable.name, ());
  bytes private constant METADATA_SYMBOL = abi.encodeCall(IERC20MetadataUpgradeable.symbol, ());
  bytes private constant METADATA_DECIMALS = abi.encodeCall(IERC20MetadataUpgradeable.decimals, ());

  /// @dev These 3 values are used when checking for token decimals and string values.
  uint256 private constant VALID_DECIMALS_ENCODING_LENGTH = 32;
  uint256 private constant SHORT_STRING_ENCODING_LENGTH = 32;
  uint256 private constant MINIMUM_STRING_ABI_DECODE_LENGTH = 64;

  /// @notice The token beacon for deployed tokens.
  address public tokenBeacon;

  /// @notice The chainId mapped to a native token address which is then mapped to the bridged token address.
  mapping(uint256 chainId => mapping(address native => address bridged)) public nativeToBridgedToken;

  /// @notice The bridged token address mapped to the native token address.
  mapping(address bridged => address native) public bridgedToNativeToken;

  /// @notice The current layer's chainId from where the bridging is triggered.
  uint256 public sourceChainId;

  /// @notice The targeted layer's chainId where the bridging is received.
  uint256 public targetChainId;

  /// @dev Keep free storage slots for future implementation updates to avoid storage collision.
  uint256[50] private __gap;

  /// @dev Ensures the token has not been bridged before.
  modifier isNewToken(address _token) {
    if (bridgedToNativeToken[_token] != EMPTY || nativeToBridgedToken[sourceChainId][_token] != EMPTY)
      revert AlreadyBridgedToken(_token);
    _;
  }

  /**
   * @dev Ensures the address is not address(0).
   * @param _addr Address to check.
   */
  modifier nonZeroAddress(address _addr) {
    if (_addr == EMPTY) revert ZeroAddressNotAllowed();
    _;
  }
  /**
   * @dev Ensures the amount is not 0.
   * @param _amount amount to check.
   */
  modifier nonZeroAmount(uint256 _amount) {
    if (_amount == 0) revert ZeroAmountNotAllowed(_amount);
    _;
  }

  /// @dev Disable constructor for safety
  /// @custom:oz-upgrades-unsafe-allow constructor
  constructor() {
    _disableInitializers();
  }

  /**
   * @notice Initializes TokenBridge and underlying service dependencies - used for new networks only.
   * @dev Contract will be used as proxy implementation.
   * @param _initializationData The initial data used for initializing the TokenBridge contract.
   */
  function initialize(
    InitializationData calldata _initializationData
  )
    external
    nonZeroAddress(_initializationData.messageService)
    nonZeroAddress(_initializationData.tokenBeacon)
    initializer
  {
    __PauseManager_init(_initializationData.pauseTypeRoles, _initializationData.unpauseTypeRoles);
    __MessageServiceBase_init(_initializationData.messageService);
    __ReentrancyGuard_init();

    /**
     * @dev DEFAULT_ADMIN_ROLE is set for the security council explicitly,
     * as the permissions init purposefully does not allow DEFAULT_ADMIN_ROLE to be set.
     */
    _grantRole(DEFAULT_ADMIN_ROLE, _initializationData.defaultAdmin);

    __Permissions_init(_initializationData.roleAddresses);

    tokenBeacon = _initializationData.tokenBeacon;
    sourceChainId = _initializationData.sourceChainId;
    targetChainId = _initializationData.targetChainId;

    unchecked {
      for (uint256 i; i < _initializationData.reservedTokens.length; ) {
        if (_initializationData.reservedTokens[i] == EMPTY) revert ZeroAddressNotAllowed();
        nativeToBridgedToken[_initializationData.sourceChainId][
          _initializationData.reservedTokens[i]
        ] = RESERVED_STATUS;
        emit TokenReserved(_initializationData.reservedTokens[i]);
        ++i;
      }
    }
  }

  /**
   * @notice Sets permissions for a list of addresses and their roles as well as initialises the PauseManager pauseType:role mappings.
   * @dev This function is a reinitializer and can only be called once per version. Should be called using an upgradeAndCall transaction to the ProxyAdmin.
   * @param _defaultAdmin The default admin account's address.
   * @param _roleAddresses The list of addresses and roles to assign permissions to.
   * @param _pauseTypeRoles The list of pause types to associate with roles.
   * @param _unpauseTypeRoles The list of unpause types to associate with roles.
   */
  function reinitializePauseTypesAndPermissions(
    address _defaultAdmin,
    RoleAddress[] calldata _roleAddresses,
    PauseTypeRole[] calldata _pauseTypeRoles,
    PauseTypeRole[] calldata _unpauseTypeRoles
  ) external reinitializer(2) {
    if (_defaultAdmin == address(0)) {
      revert ZeroAddressNotAllowed();
    }

    _grantRole(DEFAULT_ADMIN_ROLE, _defaultAdmin);

    assembly {
      /// @dev Wiping the storage slot 101 of _owner as it is replaced by AccessControl and there is now the ERC165 __gap in its place.
      sstore(101, 0)
      /// @dev Wiping the storage slot 213 of _status as it is replaced by ReentrancyGuardUpgradeable at slot 1.
      sstore(213, 0)
    }

    __ReentrancyGuard_init();
    __PauseManager_init(_pauseTypeRoles, _unpauseTypeRoles);
    __Permissions_init(_roleAddresses);
  }

  /**
   * @notice This function is the single entry point to bridge tokens to the
   *   other chain, both for native and already bridged tokens. You can use it
   *   to bridge any ERC20. If the token is bridged for the first time an ERC20
   *   (BridgedToken.sol) will be automatically deployed on the target chain.
   * @dev User should first allow the bridge to transfer tokens on his behalf.
   *   Alternatively, you can use BridgeTokenWithPermit to do so in a single
   *   transaction. If you want the transfer to be automatically executed on the
   *   destination chain. You should send enough ETH to pay the postman fees.
   *   Note that Linea can reserve some tokens (which use a dedicated bridge).
   *   In this case, the token cannot be bridged. Linea can only reserve tokens
   *   that have not been bridged yet.
   *   Linea can pause the bridge for security reason. In this case new bridge
   *   transaction would revert.
   * @dev Note: If, when bridging an unbridged token and decimals are unknown,
   * the call will revert to prevent mismatched decimals. Only those ERC20s,
   * with a decimals function are supported.
   * @param _token The address of the token to be bridged.
   * @param _amount The amount of the token to be bridged.
   * @param _recipient The address that will receive the tokens on the other chain.
   */
  function bridgeToken(
    address _token,
    uint256 _amount,
    address _recipient
  ) public payable nonZeroAddress(_token) nonZeroAddress(_recipient) nonZeroAmount(_amount) nonReentrant {
    _requireTypeAndGeneralNotPaused(PauseType.INITIATE_TOKEN_BRIDGING);
    uint256 sourceChainIdCache = sourceChainId;
    address nativeMappingValue = nativeToBridgedToken[sourceChainIdCache][_token];
    if (nativeMappingValue == RESERVED_STATUS) {
      // Token is reserved
      revert ReservedToken(_token);
    }

    address nativeToken = bridgedToNativeToken[_token];
    uint256 chainId;
    bytes memory tokenMetadata;

    if (nativeToken != EMPTY) {
      BridgedToken(_token).burn(msg.sender, _amount);
      chainId = targetChainId;
    } else {
      // Token is native

      // For tokens with special fee logic, ensure that only the amount received
      // by the bridge will be minted on the target chain.
      uint256 balanceBefore = IERC20Upgradeable(_token).balanceOf(address(this));
      IERC20Upgradeable(_token).safeTransferFrom(msg.sender, address(this), _amount);
      _amount = IERC20Upgradeable(_token).balanceOf(address(this)) - balanceBefore;
      nativeToken = _token;

      if (nativeMappingValue == EMPTY) {
        // New token
        nativeToBridgedToken[sourceChainIdCache][_token] = NATIVE_STATUS;
        emit NewToken(_token);
      }

      // Send Metadata only when the token has not been deployed on the other chain yet
      if (nativeMappingValue != DEPLOYED_STATUS) {
        tokenMetadata = abi.encode(_safeName(_token), _safeSymbol(_token), _safeDecimals(_token));
      }
      chainId = sourceChainIdCache;
    }
    messageService.sendMessage{ value: msg.value }(
      remoteSender,
      msg.value, // fees
      abi.encodeCall(ITokenBridge.completeBridging, (nativeToken, _amount, _recipient, chainId, tokenMetadata))
    );
    emit BridgingInitiatedV2(msg.sender, _recipient, _token, _amount);
  }

  /**
   * @notice Similar to `bridgeToken` function but allows to pass additional
   *   permit data to do the ERC20 approval in a single transaction.
   * @notice _permit can fail silently, don't rely on this function passing as a form
   *   of authentication
   * @dev There is no need for validation at this level as the validation on pausing,
   * and empty values exists on the "bridgeToken" call.
   * @param _token The address of the token to be bridged.
   * @param _amount The amount of the token to be bridged.
   * @param _recipient The address that will receive the tokens on the other chain.
   * @param _permitData The permit data for the token, if applicable.
   */
  function bridgeTokenWithPermit(
    address _token,
    uint256 _amount,
    address _recipient,
    bytes calldata _permitData
  ) external payable {
    if (_permitData.length != 0) {
      _permit(_token, _permitData);
    }
    bridgeToken(_token, _amount, _recipient);
  }

  /**
   * @dev It can only be called from the Message Service. To finalize the bridging
   *   process, a user or postman needs to use the `claimMessage` function of the
   *   Message Service to trigger the transaction.
   * @param _nativeToken The address of the token on its native chain.
   * @param _amount The amount of the token to be received.
   * @param _recipient The address that will receive the tokens.
   * @param _chainId The token's origin layer chaindId
   * @param _tokenMetadata Additional data used to deploy the bridged token if it
   *   doesn't exist already.
   */
  function completeBridging(
    address _nativeToken,
    uint256 _amount,
    address _recipient,
    uint256 _chainId,
    bytes calldata _tokenMetadata
  )
    external
    nonReentrant
    onlyMessagingService
    onlyAuthorizedRemoteSender
    whenTypeAndGeneralNotPaused(PauseType.COMPLETE_TOKEN_BRIDGING)
  {
    address nativeMappingValue = nativeToBridgedToken[_chainId][_nativeToken];
    address bridgedToken;

    if (nativeMappingValue == NATIVE_STATUS || nativeMappingValue == DEPLOYED_STATUS) {
      // Token is native on the local chain
      IERC20Upgradeable(_nativeToken).safeTransfer(_recipient, _amount);
    } else {
      bridgedToken = nativeMappingValue;
      if (nativeMappingValue == EMPTY) {
        // New token
        bridgedToken = deployBridgedToken(_nativeToken, _tokenMetadata, sourceChainId);
        bridgedToNativeToken[bridgedToken] = _nativeToken;
        nativeToBridgedToken[targetChainId][_nativeToken] = bridgedToken;
      }
      BridgedToken(bridgedToken).mint(_recipient, _amount);
    }
    emit BridgingFinalizedV2(_nativeToken, bridgedToken, _amount, _recipient);
  }

  /**
   * @dev Change the address of the Message Service.
   * @dev SET_MESSAGE_SERVICE_ROLE is required to execute.
   * @param _messageService The address of the new Message Service.
   */
  function setMessageService(
    address _messageService
  ) external nonZeroAddress(_messageService) onlyRole(SET_MESSAGE_SERVICE_ROLE) {
    address oldMessageService = address(messageService);
    messageService = IMessageService(_messageService);
    emit MessageServiceUpdated(_messageService, oldMessageService, msg.sender);
  }

  /**
   * @dev Change the status to DEPLOYED to the tokens passed in parameter
   *    Will call the method setDeployed on the other chain using the message Service
   * @param _tokens Array of bridged tokens that have been deployed.
   */
  function confirmDeployment(address[] memory _tokens) external payable {
    uint256 tokensLength = _tokens.length;
    if (tokensLength == 0) {
      revert TokenListEmpty();
    }

    // Check that the tokens have actually been deployed
    for (uint256 i; i < tokensLength; i++) {
      address nativeToken = bridgedToNativeToken[_tokens[i]];
      if (nativeToken == EMPTY) {
        revert TokenNotDeployed(_tokens[i]);
      }
      _tokens[i] = nativeToken;
    }

    messageService.sendMessage{ value: msg.value }(
      remoteSender,
      msg.value, // fees
      abi.encodeCall(ITokenBridge.setDeployed, (_tokens))
    );

    emit DeploymentConfirmed(_tokens, msg.sender);
  }

  /**
   * @dev Change the status of tokens to DEPLOYED. New bridge transaction will not
   *   contain token metadata, which save gas.
   *   Can only be called from the Message Service. A user or postman needs to use
   *   the `claimMessage` function of the Message Service to trigger the transaction.
   * @param _nativeTokens Array of native tokens for which the DEPLOYED status must be set.
   */
  function setDeployed(address[] calldata _nativeTokens) external onlyMessagingService onlyAuthorizedRemoteSender {
    unchecked {
      uint256 cachedSourceChainId = sourceChainId;
      for (uint256 i; i < _nativeTokens.length; ) {
        nativeToBridgedToken[cachedSourceChainId][_nativeTokens[i]] = DEPLOYED_STATUS;
        emit TokenDeployed(_nativeTokens[i]);
        ++i;
      }
    }
  }

  /**
   * @dev Sets the address of the remote token bridge. Can only be called once.
   * @dev SET_REMOTE_TOKENBRIDGE_ROLE is required to execute.
   * @param _remoteTokenBridge The address of the remote token bridge to be set.
   */
  function setRemoteTokenBridge(address _remoteTokenBridge) external onlyRole(SET_REMOTE_TOKENBRIDGE_ROLE) {
    if (remoteSender != EMPTY) revert RemoteTokenBridgeAlreadySet(remoteSender);
    _setRemoteSender(_remoteTokenBridge);
    emit RemoteTokenBridgeSet(_remoteTokenBridge, msg.sender);
  }

  /**
   * @dev Deploy a new EC20 contract for bridged token using a beacon proxy pattern.
   *   To adapt to future requirements, Linea can update the implementation of
   *   all (existing and future) contracts by updating the beacon. This update is
   *   subject to a delay by a time lock.
   *   Contracts are deployed using CREATE2 so deployment address is deterministic.
   * @param _nativeToken The address of the native token on the source chain.
   * @param _tokenMetadata The encoded metadata for the token.
   * @param _chainId The chain id on which the token will be deployed, used to calculate the salt
   * @return bridgedTokenAddress The address of the newly deployed BridgedToken contract.
   */
  function deployBridgedToken(
    address _nativeToken,
    bytes calldata _tokenMetadata,
    uint256 _chainId
  ) internal returns (address bridgedTokenAddress) {
    bridgedTokenAddress = address(
      new BeaconProxy{ salt: Utils._efficientKeccak(_chainId, _nativeToken) }(tokenBeacon, "")
    );

    (string memory name, string memory symbol, uint8 decimals) = abi.decode(_tokenMetadata, (string, string, uint8));
    BridgedToken(bridgedTokenAddress).initialize(name, symbol, decimals);
    emit NewTokenDeployed(bridgedTokenAddress, _nativeToken);
  }

  /**
   * @dev Linea can reserve tokens. In this case, the token cannot be bridged.
   *   Linea can only reserve tokens that have not been bridged before.
   * @dev SET_RESERVED_TOKEN_ROLE is required to execute.
   * @notice Make sure that _token is native to the current chain
   *   where you are calling this function from
   * @param _token The address of the token to be set as reserved.
   */
  function setReserved(
    address _token
  ) external nonZeroAddress(_token) isNewToken(_token) onlyRole(SET_RESERVED_TOKEN_ROLE) {
    nativeToBridgedToken[sourceChainId][_token] = RESERVED_STATUS;
    emit TokenReserved(_token);
  }

  /**
   * @dev Removes a token from the reserved list.
   * @dev REMOVE_RESERVED_TOKEN_ROLE is required to execute.
   * @param _token The address of the token to be removed from the reserved list.
   */
  function removeReserved(address _token) external nonZeroAddress(_token) onlyRole(REMOVE_RESERVED_TOKEN_ROLE) {
    uint256 cachedSourceChainId = sourceChainId;

    if (nativeToBridgedToken[cachedSourceChainId][_token] != RESERVED_STATUS) revert NotReserved(_token);
    nativeToBridgedToken[cachedSourceChainId][_token] = EMPTY;

    emit ReservationRemoved(_token);
  }

  /**
   * @dev Linea can set a custom ERC20 contract for specific ERC20.
   *   For security purpose, Linea can only call this function if the token has
   *   not been bridged yet.
   * @dev SET_CUSTOM_CONTRACT_ROLE is required to execute.
   * @param _nativeToken The address of the token on the source chain.
   * @param _targetContract The address of the custom contract.
   */
  function setCustomContract(
    address _nativeToken,
    address _targetContract
  )
    external
    nonZeroAddress(_nativeToken)
    nonZeroAddress(_targetContract)
    onlyRole(SET_CUSTOM_CONTRACT_ROLE)
    isNewToken(_nativeToken)
  {
    if (bridgedToNativeToken[_targetContract] != EMPTY) {
      revert AlreadyBrigedToNativeTokenSet(_targetContract);
    }
    if (_targetContract == NATIVE_STATUS || _targetContract == DEPLOYED_STATUS || _targetContract == RESERVED_STATUS) {
      revert StatusAddressNotAllowed(_targetContract);
    }

    uint256 cachedTargetChainId = targetChainId;

    if (nativeToBridgedToken[cachedTargetChainId][_nativeToken] != EMPTY) {
      revert NativeToBridgedTokenAlreadySet(_nativeToken);
    }

    nativeToBridgedToken[cachedTargetChainId][_nativeToken] = _targetContract;
    bridgedToNativeToken[_targetContract] = _nativeToken;
    emit CustomContractSet(_nativeToken, _targetContract, msg.sender);
  }

  // Helpers to safely get the metadata from a token, inspired by
  // https://github.com/traderjoe-xyz/joe-core/blob/main/contracts/MasterChefJoeV3.sol#L55-L95

  /**
   * @dev Provides a safe ERC20.name version which returns 'NO_NAME' as fallback string.
   * @param _token The address of the ERC-20 token contract
   * @return tokenName Returns the string of the token name.
   */
  function _safeName(address _token) internal view returns (string memory tokenName) {
    (bool success, bytes memory data) = _token.staticcall(METADATA_NAME);
    tokenName = success ? _returnDataToString(data) : "NO_NAME";
  }

  /**
   * @dev Provides a safe ERC20.symbol version which returns 'NO_SYMBOL' as fallback string
   * @param _token The address of the ERC-20 token contract
   * @return symbol Returns the string of the symbol.
   */
  function _safeSymbol(address _token) internal view returns (string memory symbol) {
    (bool success, bytes memory data) = _token.staticcall(METADATA_SYMBOL);
    symbol = success ? _returnDataToString(data) : "NO_SYMBOL";
  }

  /**
   * @notice Provides a safe ERC20.decimals version which reverts when decimals are unknown
   *   Note Tokens with (decimals > 255) are not supported
   * @param _token The address of the ERC-20 token contract
   * @return Returns the token's decimals value.
   */
  function _safeDecimals(address _token) internal view returns (uint8) {
    (bool success, bytes memory data) = _token.staticcall(METADATA_DECIMALS);

    if (success && data.length == VALID_DECIMALS_ENCODING_LENGTH) {
      return abi.decode(data, (uint8));
    }

    revert DecimalsAreUnknown(_token);
  }

  /**
   * @dev Converts returned data to string. Returns 'NOT_VALID_ENCODING' as fallback value.
   * @param _data returned data.
   * @return decodedString The decoded string data.
   */
  function _returnDataToString(bytes memory _data) internal pure returns (string memory decodedString) {
    if (_data.length >= MINIMUM_STRING_ABI_DECODE_LENGTH) {
      return abi.decode(_data, (string));
    } else if (_data.length != SHORT_STRING_ENCODING_LENGTH) {
      return "NOT_VALID_ENCODING";
    }

    // Since the strings on bytes32 are encoded left-right, check the first zero in the data
    uint256 nonZeroBytes;
    unchecked {
      while (nonZeroBytes < SHORT_STRING_ENCODING_LENGTH && _data[nonZeroBytes] != 0) {
        nonZeroBytes++;
      }
    }

    // If the first one is 0, we do not handle the encoding
    if (nonZeroBytes == 0) {
      return "NOT_VALID_ENCODING";
    }
    // Create a byte array with nonZeroBytes length
    bytes memory bytesArray = new bytes(nonZeroBytes);
    unchecked {
      for (uint256 i; i < nonZeroBytes; ) {
        bytesArray[i] = _data[i];
        ++i;
      }
    }
    decodedString = string(bytesArray);
  }

  /**
   * @notice Call the token permit method of extended ERC20
   * @notice Only support tokens implementing ERC-2612
   * @param _token ERC20 token address
   * @param _permitData Raw data of the call `permit` of the token
   */
  function _permit(address _token, bytes calldata _permitData) internal {
    if (bytes4(_permitData[:4]) != _PERMIT_SELECTOR)
      revert InvalidPermitData(bytes4(_permitData[:4]), _PERMIT_SELECTOR);
    // Decode the permit data
    // The parameters are:
    // 1. owner: The address of the wallet holding the tokens
    // 2. spender: The address of the entity permitted to spend the tokens
    // 3. value: The maximum amount of tokens the spender is allowed to spend
    // 4. deadline: The time until which the permit is valid
    // 5. v: Part of the signature (along with r and s), these three values form the signature of the permit
    // 6. r: Part of the signature
    // 7. s: Part of the signature
    (address owner, address spender, uint256 amount, uint256 deadline, uint8 v, bytes32 r, bytes32 s) = abi.decode(
      _permitData[4:],
      (address, address, uint256, uint256, uint8, bytes32, bytes32)
    );
    if (owner != msg.sender) revert PermitNotFromSender(owner);
    if (spender != address(this)) revert PermitNotAllowingBridge(spender);

    if (IERC20Upgradeable(_token).allowance(owner, spender) < amount) {
      IERC20PermitUpgradeable(_token).permit(msg.sender, address(this), amount, deadline, v, r, s);
    }
  }
}

// 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) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267Upgradeable {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// 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) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }

    /**
     * @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) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20Upgradeable.sol";
import "./extensions/IERC20MetadataUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import {Initializable} from "../../proxy/utils/Initializable.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].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * 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 ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {
    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}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        _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 default value returned by this function, unless
     * it's 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 {}

    /**
     * @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[45] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/ERC20Permit.sol)

pragma solidity ^0.8.0;

import "./IERC20PermitUpgradeable.sol";
import "../ERC20Upgradeable.sol";
import "../../../utils/cryptography/ECDSAUpgradeable.sol";
import "../../../utils/cryptography/EIP712Upgradeable.sol";
import "../../../utils/CountersUpgradeable.sol";
import {Initializable} from "../../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * _Available since v3.4._
 *
 * @custom:storage-size 51
 */
abstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20PermitUpgradeable, EIP712Upgradeable {
    using CountersUpgradeable for CountersUpgradeable.Counter;

    mapping(address => CountersUpgradeable.Counter) private _nonces;

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private constant _PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    /**
     * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`.
     * However, to ensure consistency with the upgradeable transpiler, we will continue
     * to reserve a slot.
     * @custom:oz-renamed-from _PERMIT_TYPEHASH
     */
    // solhint-disable-next-line var-name-mixedcase
    bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT;

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    function __ERC20Permit_init(string memory name) internal onlyInitializing {
        __EIP712_init_unchained(name, "1");
    }

    function __ERC20Permit_init_unchained(string memory) internal onlyInitializing {}

    /**
     * @inheritdoc IERC20PermitUpgradeable
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual override {
        require(block.timestamp <= deadline, "ERC20Permit: expired deadline");

        bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSAUpgradeable.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _approve(owner, spender, value);
    }

    /**
     * @inheritdoc IERC20PermitUpgradeable
     */
    function nonces(address owner) public view virtual override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @inheritdoc IERC20PermitUpgradeable
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }

    /**
     * @dev "Consume a nonce": return the current value and increment.
     *
     * _Available since v4.1._
     */
    function _useNonce(address owner) internal virtual returns (uint256 current) {
        CountersUpgradeable.Counter storage nonce = _nonces[owner];
        current = nonce.current();
        nonce.increment();
    }

    /**
     * @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 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20MetadataUpgradeable is IERC20Upgradeable {
    /**
     * @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 v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20PermitUpgradeable {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";
import "../extensions/IERC20PermitUpgradeable.sol";
import "../../../utils/AddressUpgradeable.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20Upgradeable {
    using AddressUpgradeable for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20Upgradeable token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20Upgradeable token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20Upgradeable token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20Upgradeable token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20Upgradeable token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20Upgradeable token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20PermitUpgradeable token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20Upgradeable token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20Upgradeable token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && AddressUpgradeable.isContract(address(token));
    }
}

// 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/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library CountersUpgradeable {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../StringsUpgradeable.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSAUpgradeable {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", StringsUpgradeable.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSAUpgradeable.sol";
import "../../interfaces/IERC5267Upgradeable.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:storage-size 52
 */
abstract contract EIP712Upgradeable is Initializable, IERC5267Upgradeable {
    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    /// @custom:oz-renamed-from _HASHED_NAME
    bytes32 private _hashedName;
    /// @custom:oz-renamed-from _HASHED_VERSION
    bytes32 private _hashedVersion;

    string private _name;
    string private _version;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    function __EIP712_init(string memory name, string memory version) internal onlyInitializing {
        __EIP712_init_unchained(name, version);
    }

    function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing {
        _name = name;
        _version = version;

        // Reset prior values in storage if upgrading
        _hashedName = 0;
        _hashedVersion = 0;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        return _buildDomainSeparator();
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash(), block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        // If the hashed name and version in storage are non-zero, the contract hasn't been properly initialized
        // and the EIP712 domain is not reliable, as it will be missing name and version.
        require(_hashedName == 0 && _hashedVersion == 0, "EIP712: Uninitialized");

        return (
            hex"0f", // 01111
            _EIP712Name(),
            _EIP712Version(),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }

    /**
     * @dev The name parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712Name() internal virtual view returns (string memory) {
        return _name;
    }

    /**
     * @dev The version parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712Version() internal virtual view returns (string memory) {
        return _version;
    }

    /**
     * @dev The hash of the name parameter for the EIP712 domain.
     *
     * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Name` instead.
     */
    function _EIP712NameHash() internal view returns (bytes32) {
        string memory name = _EIP712Name();
        if (bytes(name).length > 0) {
            return keccak256(bytes(name));
        } else {
            // If the name is empty, the contract may have been upgraded without initializing the new storage.
            // We return the name hash in storage if non-zero, otherwise we assume the name is empty by design.
            bytes32 hashedName = _hashedName;
            if (hashedName != 0) {
                return hashedName;
            } else {
                return keccak256("");
            }
        }
    }

    /**
     * @dev The hash of the version parameter for the EIP712 domain.
     *
     * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Version` instead.
     */
    function _EIP712VersionHash() internal view returns (bytes32) {
        string memory version = _EIP712Version();
        if (bytes(version).length > 0) {
            return keccak256(bytes(version));
        } else {
            // If the version is empty, the contract may have been upgraded without initializing the new storage.
            // We return the version hash in storage if non-zero, otherwise we assume the version is empty by design.
            bytes32 hashedVersion = _hashedVersion;
            if (hashedVersion != 0) {
                return hashedVersion;
            } else {
                return keccak256("");
            }
        }
    }

    /**
     * @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[48] 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
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.0;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1967.sol)

pragma solidity ^0.8.0;

/**
 * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
 *
 * _Available since v4.8.3._
 */
interface IERC1967 {
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Emitted when the beacon is changed.
     */
    event BeaconUpgraded(address indexed beacon);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/beacon/BeaconProxy.sol)

pragma solidity ^0.8.0;

import "./IBeacon.sol";
import "../Proxy.sol";
import "../ERC1967/ERC1967Upgrade.sol";

/**
 * @dev This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}.
 *
 * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't
 * conflict with the storage layout of the implementation behind the proxy.
 *
 * _Available since v3.4._
 */
contract BeaconProxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the proxy with `beacon`.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This
     * will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity
     * constructor.
     *
     * Requirements:
     *
     * - `beacon` must be a contract with the interface {IBeacon}.
     */
    constructor(address beacon, bytes memory data) payable {
        _upgradeBeaconToAndCall(beacon, data, false);
    }

    /**
     * @dev Returns the current beacon address.
     */
    function _beacon() internal view virtual returns (address) {
        return _getBeacon();
    }

    /**
     * @dev Returns the current implementation address of the associated beacon.
     */
    function _implementation() internal view virtual override returns (address) {
        return IBeacon(_getBeacon()).implementation();
    }

    /**
     * @dev Changes the proxy to use a new beacon. Deprecated: see {_upgradeBeaconToAndCall}.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon.
     *
     * Requirements:
     *
     * - `beacon` must be a contract.
     * - The implementation returned by `beacon` must be a contract.
     */
    function _setBeacon(address beacon, bytes memory data) internal virtual {
        _upgradeBeaconToAndCall(beacon, data, false);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol)

pragma solidity ^0.8.2;

import "../beacon/IBeacon.sol";
import "../../interfaces/IERC1967.sol";
import "../../interfaces/draft-IERC1822.sol";
import "../../utils/Address.sol";
import "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 */
abstract contract ERC1967Upgrade is IERC1967 {
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(newImplementation, data);
        }
    }

    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal {
        // Upgrades from old implementations will perform a rollback test. This test requires the new
        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
        // this special case will break upgrade paths from old UUPS implementation to new ones.
        if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
            _setImplementation(newImplementation);
        } else {
            try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
            } catch {
                revert("ERC1967Upgrade: new implementation is not UUPS");
            }
            _upgradeToAndCall(newImplementation, data, forceCall);
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            Address.isContract(IBeacon(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }

    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive() external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overridden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}

// 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 Address {
    /**
     * @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 v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
 * _Available since v4.9 for `string`, `bytes`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity >=0.8.19 <=0.8.26;

/**
 * @title Interface declaring generic errors.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
interface IGenericErrors {
  /**
   * @dev Thrown when a parameter is the zero address.
   */
  error ZeroAddressNotAllowed();

  /**
   * @dev Thrown when a parameter is the zero hash.
   */
  error ZeroHashNotAllowed();

  /**
   * @dev Thrown when array lengths are mismatched.
   */
  error ArrayLengthsDoNotMatch();
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity >=0.8.19 <=0.8.26;

/**
 * @title Interface declaring pre-existing cross-chain messaging functions, events and errors.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
interface IMessageService {
  /**
   * @notice Emitted when a message is sent.
   * @param _from The indexed sender address of the message (msg.sender).
   * @param _to The indexed intended recipient address of the message on the other layer.
   * @param _fee The fee being being paid to deliver the message to the recipient in Wei.
   * @param _value The value being sent to the recipient in Wei.
   * @param _nonce The unique message number.
   * @param _calldata The calldata being passed to the intended recipient when being called on claiming.
   * @param _messageHash The indexed hash of the message parameters.
   * @dev _calldata has the _ because calldata is a reserved word.
   * @dev We include the message hash to save hashing costs on the rollup.
   * @dev This event is used on both L1 and L2.
   */
  event MessageSent(
    address indexed _from,
    address indexed _to,
    uint256 _fee,
    uint256 _value,
    uint256 _nonce,
    bytes _calldata,
    bytes32 indexed _messageHash
  );

  /**
   * @notice Emitted when a message is claimed.
   * @param _messageHash The indexed hash of the message that was claimed.
   */
  event MessageClaimed(bytes32 indexed _messageHash);

  /**
   * @dev Thrown when fees are lower than the minimum fee.
   */
  error FeeTooLow();

  /**
   * @dev Thrown when the value sent is less than the fee.
   * @dev Value to forward on is msg.value - _fee.
   */
  error ValueSentTooLow();

  /**
   * @dev Thrown when the destination address reverts.
   */
  error MessageSendingFailed(address destination);

  /**
   * @dev Thrown when the recipient address reverts.
   */
  error FeePaymentFailed(address recipient);

  /**
   * @notice Sends a message for transporting from the given chain.
   * @dev This function should be called with a msg.value = _value + _fee. The fee will be paid on the destination chain.
   * @param _to The destination address on the destination chain.
   * @param _fee The message service fee on the origin chain.
   * @param _calldata The calldata used by the destination message service to call the destination contract.
   */
  function sendMessage(address _to, uint256 _fee, bytes calldata _calldata) external payable;

  /**
   * @notice Deliver a message to the destination chain.
   * @notice Is called by the Postman, dApp or end user.
   * @param _from The msg.sender calling the origin message service.
   * @param _to The destination address on the destination chain.
   * @param _value The value to be transferred to the destination address.
   * @param _fee The message service fee on the origin chain.
   * @param _feeRecipient Address that will receive the fees.
   * @param _calldata The calldata used by the destination message service to call/forward to the destination contract.
   * @param _nonce Unique message number.
   */
  function claimMessage(
    address _from,
    address _to,
    uint256 _fee,
    uint256 _value,
    address payable _feeRecipient,
    bytes calldata _calldata,
    uint256 _nonce
  ) external;

  /**
   * @notice Returns the original sender of the message on the origin layer.
   * @return originalSender The original sender of the message on the origin layer.
   */
  function sender() external view returns (address originalSender);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity >=0.8.19 <=0.8.26;

/**
 * @title Interface declaring pre-existing pausing functions, events and errors.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
interface IPauseManager {
  /**
   * @notice Structure defining a pause type and its associated role.
   * @dev This struct is used for both the `_pauseTypeRoles` and `_unPauseTypeRoles` mappings.
   * @param pauseType The type of pause.
   * @param role The role associated with the pause type.
   */
  struct PauseTypeRole {
    PauseType pauseType;
    bytes32 role;
  }

  /**
   * @notice Enum defining the different types of pausing.
   * @dev The pause types are used to pause and unpause specific functionality.
   * @dev The UNUSED pause type is used as a default value to avoid accidental general pausing.
   * @dev Enums are uint8 by default.
   */
  enum PauseType {
    UNUSED,
    GENERAL,
    L1_L2,
    L2_L1,
    BLOB_SUBMISSION,
    CALLDATA_SUBMISSION,
    FINALIZATION,
    INITIATE_TOKEN_BRIDGING,
    COMPLETE_TOKEN_BRIDGING
  }

  /**
   * @notice Emitted when a pause type is paused.
   * @param messageSender The address performing the pause.
   * @param pauseType The indexed pause type that was paused.
   */
  event Paused(address messageSender, PauseType indexed pauseType);

  /**
   * @notice Emitted when a pause type is unpaused.
   * @param messageSender The address performing the unpause.
   * @param pauseType The indexed pause type that was unpaused.
   */
  event UnPaused(address messageSender, PauseType indexed pauseType);

  /**
   * @notice Emitted when a pause type and its associated role are set in the `_pauseTypeRoles` mapping.
   * @param pauseType The indexed type of pause.
   * @param role The indexed role associated with the pause type.
   */
  event PauseTypeRoleSet(PauseType indexed pauseType, bytes32 indexed role);

  /**
   * @notice Emitted when an unpause type and its associated role are set in the `_unPauseTypeRoles` mapping.
   * @param unPauseType The indexed type of unpause.
   * @param role The indexed role associated with the unpause type.
   */
  event UnPauseTypeRoleSet(PauseType indexed unPauseType, bytes32 indexed role);

  /**
   * @dev Thrown when a specific pause type is paused.
   */
  error IsPaused(PauseType pauseType);

  /**
   * @dev Thrown when a specific pause type is not paused and expected to be.
   */
  error IsNotPaused(PauseType pauseType);

  /**
   * @notice Pauses functionality by specific type.
   * @dev Requires the role mapped in pauseTypeRoles for the pauseType.
   * @param _pauseType The pause type value.
   */
  function pauseByType(PauseType _pauseType) external;

  /**
   * @notice Unpauses functionality by specific type.
   * @dev Requires the role mapped in unPauseTypeRoles for the pauseType.
   * @param _pauseType The pause type value.
   */
  function unPauseByType(PauseType _pauseType) external;

  /**
   * @notice Check if a pause type is enabled.
   * @param _pauseType The pause type value.
   * @return pauseTypeIsPaused Returns true if the pause type if paused, false otherwise.
   */
  function isPaused(PauseType _pauseType) external view returns (bool pauseTypeIsPaused);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity >=0.8.19 <=0.8.26;

/**
 * @title Interface declaring permissions manager related data types.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
interface IPermissionsManager {
  /**
   * @notice Structure defining a role and its associated address.
   * @param addressWithRole The address with the role.
   * @param role The role associated with the address.
   */
  struct RoleAddress {
    address addressWithRole;
    bytes32 role;
  }
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.19 <=0.8.26;

import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import { IPauseManager } from "../interfaces/IPauseManager.sol";

/**
 * @title Contract to manage cross-chain function pausing.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
abstract contract PauseManager is Initializable, IPauseManager, AccessControlUpgradeable {
  /// @notice This is used to pause all pausable functions.
  bytes32 public constant PAUSE_ALL_ROLE = keccak256("PAUSE_ALL_ROLE");

  /// @notice This is used to unpause all unpausable functions.
  bytes32 public constant UNPAUSE_ALL_ROLE = keccak256("UNPAUSE_ALL_ROLE");

  // @dev DEPRECATED. USE _pauseTypeStatusesBitMap INSTEAD
  mapping(bytes32 pauseType => bool pauseStatus) public pauseTypeStatuses;

  /// @dev The bitmap containing the pause statuses mapped by type.
  uint256 private _pauseTypeStatusesBitMap;

  /// @dev This maps the pause type to the role that is allowed to pause it.
  mapping(PauseType pauseType => bytes32 role) private _pauseTypeRoles;

  /// @dev This maps the unpause type to the role that is allowed to unpause it.
  mapping(PauseType unPauseType => bytes32 role) private _unPauseTypeRoles;

  /// @dev Total contract storage is 11 slots with the gap below.
  /// @dev Keep 7 free storage slots for future implementation updates to avoid storage collision.
  /// @dev Note: This was reduced previously to cater for new functionality.
  uint256[7] private __gap;

  /**
   * @dev Modifier to make a function callable only when the specific and general types are not paused.
   * @param _pauseType The pause type value being checked.
   * Requirements:
   *
   * - The type must not be paused.
   */
  modifier whenTypeAndGeneralNotPaused(PauseType _pauseType) {
    _requireTypeAndGeneralNotPaused(_pauseType);
    _;
  }

  /**
   * @dev Modifier to make a function callable only when the type is not paused.
   * @param _pauseType The pause type value being checked.
   * Requirements:
   *
   * - The type must not be paused.
   */
  modifier whenTypeNotPaused(PauseType _pauseType) {
    _requireTypeNotPaused(_pauseType);
    _;
  }

  /**
   * @notice Initializes the pause manager with the given pause and unpause roles.
   * @dev This function is called during contract initialization to set up the pause and unpause roles.
   * @param _pauseTypeRoleAssignments An array of PauseTypeRole structs defining the pause types and their associated roles.
   * @param _unpauseTypeRoleAssignments An array of PauseTypeRole structs defining the unpause types and their associated roles.
   */
  function __PauseManager_init(
    PauseTypeRole[] calldata _pauseTypeRoleAssignments,
    PauseTypeRole[] calldata _unpauseTypeRoleAssignments
  ) internal onlyInitializing {
    for (uint256 i; i < _pauseTypeRoleAssignments.length; i++) {
      _pauseTypeRoles[_pauseTypeRoleAssignments[i].pauseType] = _pauseTypeRoleAssignments[i].role;
      emit PauseTypeRoleSet(_pauseTypeRoleAssignments[i].pauseType, _pauseTypeRoleAssignments[i].role);
    }

    for (uint256 i; i < _unpauseTypeRoleAssignments.length; i++) {
      _unPauseTypeRoles[_unpauseTypeRoleAssignments[i].pauseType] = _unpauseTypeRoleAssignments[i].role;
      emit UnPauseTypeRoleSet(_unpauseTypeRoleAssignments[i].pauseType, _unpauseTypeRoleAssignments[i].role);
    }
  }

  /**
   * @dev Throws if the specific or general types are paused.
   * @dev Checks the specific and general pause types.
   * @param _pauseType The pause type value being checked.
   */
  function _requireTypeAndGeneralNotPaused(PauseType _pauseType) internal view virtual {
    uint256 pauseBitMap = _pauseTypeStatusesBitMap;

    if (pauseBitMap & (1 << uint256(_pauseType)) != 0) {
      revert IsPaused(_pauseType);
    }

    if (pauseBitMap & (1 << uint256(PauseType.GENERAL)) != 0) {
      revert IsPaused(PauseType.GENERAL);
    }
  }

  /**
   * @dev Throws if the type is paused.
   * @dev Checks the specific pause type.
   * @param _pauseType The pause type value being checked.
   */
  function _requireTypeNotPaused(PauseType _pauseType) internal view virtual {
    if (isPaused(_pauseType)) {
      revert IsPaused(_pauseType);
    }
  }

  /**
   * @notice Pauses functionality by specific type.
   * @dev Requires the role mapped in `_pauseTypeRoles` for the pauseType.
   * @param _pauseType The pause type value.
   */
  function pauseByType(PauseType _pauseType) external onlyRole(_pauseTypeRoles[_pauseType]) {
    if (isPaused(_pauseType)) {
      revert IsPaused(_pauseType);
    }

    _pauseTypeStatusesBitMap |= 1 << uint256(_pauseType);
    emit Paused(_msgSender(), _pauseType);
  }

  /**
   * @notice Unpauses functionality by specific type.
   * @dev Requires the role mapped in `_unPauseTypeRoles` for the pauseType.
   * @param _pauseType The pause type value.
   */
  function unPauseByType(PauseType _pauseType) external onlyRole(_unPauseTypeRoles[_pauseType]) {
    if (!isPaused(_pauseType)) {
      revert IsNotPaused(_pauseType);
    }

    _pauseTypeStatusesBitMap &= ~(1 << uint256(_pauseType));
    emit UnPaused(_msgSender(), _pauseType);
  }

  /**
   * @notice Check if a pause type is enabled.
   * @param _pauseType The pause type value.
   * @return pauseTypeIsPaused Returns true if the pause type if paused, false otherwise.
   */
  function isPaused(PauseType _pauseType) public view returns (bool pauseTypeIsPaused) {
    pauseTypeIsPaused = (_pauseTypeStatusesBitMap & (1 << uint256(_pauseType))) != 0;
  }
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.19 <=0.8.26;

import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import { IGenericErrors } from "../interfaces/IGenericErrors.sol";
import { IPermissionsManager } from "../interfaces/IPermissionsManager.sol";

/**
 * @title Contract to manage permissions initialization.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
abstract contract PermissionsManager is Initializable, AccessControlUpgradeable, IPermissionsManager, IGenericErrors {
  /**
   * @notice Sets permissions for a list of addresses and their roles.
   * @param _roleAddresses The list of addresses and roles to assign permissions to.
   */
  function __Permissions_init(RoleAddress[] calldata _roleAddresses) internal onlyInitializing {
    for (uint256 i; i < _roleAddresses.length; i++) {
      if (_roleAddresses[i].addressWithRole == address(0)) {
        revert ZeroAddressNotAllowed();
      }

      if (_roleAddresses[i].role == 0x0) {
        revert ZeroHashNotAllowed();
      }

      _grantRole(_roleAddresses[i].role, _roleAddresses[i].addressWithRole);
    }
  }
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.19 <=0.8.26;

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

/**
 * @title Contract to manage cross-chain function pausing roles for the Token Bridge.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
abstract contract TokenBridgePauseManager is PauseManager {
  bytes32 public constant PAUSE_INITIATE_TOKEN_BRIDGING_ROLE = keccak256("PAUSE_INITIATE_TOKEN_BRIDGING_ROLE");
  bytes32 public constant UNPAUSE_INITIATE_TOKEN_BRIDGING_ROLE = keccak256("UNPAUSE_INITIATE_TOKEN_BRIDGING_ROLE");
  bytes32 public constant PAUSE_COMPLETE_TOKEN_BRIDGING_ROLE = keccak256("PAUSE_COMPLETE_TOKEN_BRIDGING_ROLE");
  bytes32 public constant UNPAUSE_COMPLETE_TOKEN_BRIDGING_ROLE = keccak256("UNPAUSE_COMPLETE_TOKEN_BRIDGING_ROLE");
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.19 <=0.8.26;

/**
 * @title Contract to manage some efficient hashing functions.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
library Utils {
  /**
   * @notice Performs a gas optimized keccak hash for two bytes32 values.
   * @param _left Left value.
   * @param _right Right value.
   */
  function _efficientKeccak(bytes32 _left, bytes32 _right) internal pure returns (bytes32 value) {
    /// @solidity memory-safe-assembly
    assembly {
      mstore(0x00, _left)
      mstore(0x20, _right)
      value := keccak256(0x00, 0x40)
    }
  }

  /**
   * @notice Performs a gas optimized keccak hash for uint256 and address.
   * @param _left Left value.
   * @param _right Right value.
   */
  function _efficientKeccak(uint256 _left, address _right) internal pure returns (bytes32 value) {
    /// @solidity memory-safe-assembly
    assembly {
      mstore(0x00, _left)
      mstore(0x20, _right)
      value := keccak256(0x00, 0x40)
    }
  }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity >=0.8.19 <=0.8.26;

import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import { IMessageService } from "../interfaces/IMessageService.sol";
import { IGenericErrors } from "../interfaces/IGenericErrors.sol";

/**
 * @title Base contract to manage cross-chain messaging.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
abstract contract MessageServiceBase is Initializable, IGenericErrors {
  /// @notice The message service address on the current chain.
  IMessageService public messageService;

  /// @notice The token bridge on the alternate/remote chain.
  address public remoteSender;

  /// @dev Total contract storage is 12 slots with the gap below.
  /// @dev Keep 10 free storage slots for future implementation updates to avoid storage collision.
  uint256[10] private __base_gap;

  /**
   * @dev Event emitted when the remote sender is set.
   * @param remoteSender The address of the new remote sender.
   * @param setter The address of the account that set the remote sender.
   */
  event RemoteSenderSet(address indexed remoteSender, address indexed setter);

  /**
   * @dev Thrown when the caller address is not the message service address
   */
  error CallerIsNotMessageService();

  /**
   * @dev Thrown when remote sender address is not authorized.
   */
  error SenderNotAuthorized();

  /**
   * @dev Modifier to make sure the caller is the known message service.
   *
   * Requirements:
   *
   * - The msg.sender must be the message service.
   */
  modifier onlyMessagingService() {
    if (msg.sender != address(messageService)) {
      revert CallerIsNotMessageService();
    }
    _;
  }

  /**
   * @dev Modifier to make sure the original sender is allowed.
   *
   * Requirements:
   *
   * - The original message sender via the message service must be a known sender.
   */
  modifier onlyAuthorizedRemoteSender() {
    if (messageService.sender() != remoteSender) {
      revert SenderNotAuthorized();
    }
    _;
  }

  /**
   * @notice Initializes the message service
   * @dev Must be initialized in the initialize function of the main contract or constructor.
   * @param _messageService The message service address, cannot be empty.
   */
  function __MessageServiceBase_init(address _messageService) internal onlyInitializing {
    if (_messageService == address(0)) {
      revert ZeroAddressNotAllowed();
    }

    messageService = IMessageService(_messageService);
  }

  /**
   * @notice Sets the remote sender
   * @dev This function sets the remote sender address and emits the RemoteSenderSet event.
   * @param _remoteSender The authorized remote sender address, cannot be empty.
   */
  function _setRemoteSender(address _remoteSender) internal {
    if (_remoteSender == address(0)) {
      revert ZeroAddressNotAllowed();
    }

    remoteSender = _remoteSender;
    emit RemoteSenderSet(_remoteSender, msg.sender);
  }
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity 0.8.19;

import { ERC20PermitUpgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20PermitUpgradeable.sol";

/**
 * @title BridgedToken Contract
 * @notice ERC20 token created when a native token is bridged to a target chain.
 * @custom:security-contact [email protected]
 */
contract BridgedToken is ERC20PermitUpgradeable {
  address public bridge;
  uint8 public _decimals;
  /**
   * @notice Initializes the BridgedToken contract.
   * @dev Disables OpenZeppelin's initializer mechanism for safety.
   */

  /// @dev Keep free storage slots for future implementation updates to avoid storage collision.
  uint256[50] private __gap;

  error OnlyBridge(address bridgeAddress);

  /// @dev Disable constructor for safety
  /// @custom:oz-upgrades-unsafe-allow constructor
  constructor() {
    _disableInitializers();
  }

  function initialize(string memory _tokenName, string memory _tokenSymbol, uint8 _tokenDecimals) external initializer {
    __ERC20_init(_tokenName, _tokenSymbol);
    __ERC20Permit_init(_tokenName);
    bridge = msg.sender;
    _decimals = _tokenDecimals;
  }

  /// @dev Ensures call come from the bridge.
  modifier onlyBridge() {
    if (msg.sender != bridge) revert OnlyBridge(bridge);
    _;
  }

  /**
   * @dev Called by the bridge to mint tokens during a bridge transaction.
   * @param _recipient The address to receive the minted tokens.
   * @param _amount The amount of tokens to mint.
   */
  function mint(address _recipient, uint256 _amount) external onlyBridge {
    _mint(_recipient, _amount);
  }

  /**
   * @dev Called by the bridge to burn tokens during a bridge transaction.
   * @dev User should first have allowed the bridge to spend tokens on their behalf.
   * @param _account The account from which tokens will be burned.
   * @param _amount The amount of tokens to burn.
   */
  function burn(address _account, uint256 _amount) external onlyBridge {
    _spendAllowance(_account, msg.sender, _amount);
    _burn(_account, _amount);
  }

  /**
   * @dev Overrides ERC20 default function to support tokens with different decimals.
   * @return The number of decimal.
   */
  function decimals() public view override returns (uint8) {
    return _decimals;
  }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.19;

import { IPauseManager } from "../../interfaces/IPauseManager.sol";
import { IPermissionsManager } from "../../interfaces/IPermissionsManager.sol";

/**
 * @title Interface declaring Canonical Token Bridge struct, functions, events and errors.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
interface ITokenBridge {
  /**
   * @dev Contract will be used as proxy implementation.
   * @param defaultAdmin The account to be given DEFAULT_ADMIN_ROLE on initialization.
   * @param messageService The address of the MessageService contract.
   * @param tokenBeacon The address of the tokenBeacon.
   * @param sourceChainId The source chain id of the current layer.
   * @param targetChainId The target chaind id of the targeted layer.
   * @param reservedTokens The list of reserved tokens to be set.
   * @param roleAddresses The list of addresses and roles to assign permissions to.
   * @param pauseTypeRoles The list of pause types to associate with roles.
   * @param unpauseTypeRoles The list of unpause types to associate with roles.
   */
  struct InitializationData {
    address defaultAdmin;
    address messageService;
    address tokenBeacon;
    uint256 sourceChainId;
    uint256 targetChainId;
    address[] reservedTokens;
    IPermissionsManager.RoleAddress[] roleAddresses;
    IPauseManager.PauseTypeRole[] pauseTypeRoles;
    IPauseManager.PauseTypeRole[] unpauseTypeRoles;
  }

  /**
   * @notice Emitted when the token address is reserved.
   * @param token The indexed token address.
   */
  event TokenReserved(address indexed token);

  /**
   * @notice Emitted when the token address reservation is removed.
   * @param token The indexed token address.
   */
  event ReservationRemoved(address indexed token);

  /**
   * @notice Emitted when the custom token address is set.
   * @param nativeToken The indexed nativeToken token address.
   * @param customContract The indexed custom contract address.
   * @param setBy The indexed address of who set the custom contract.
   */
  event CustomContractSet(address indexed nativeToken, address indexed customContract, address indexed setBy);

  /**
   * @notice Emitted when token bridging is initiated.
   * @dev DEPRECATED in favor of BridgingInitiatedV2.
   * @param sender The indexed sender address.
   * @param recipient The recipient address.
   * @param token The indexed token address.
   * @param amount The indexed token amount.
   */
  event BridgingInitiated(address indexed sender, address recipient, address indexed token, uint256 indexed amount);

  /**
   * @notice Emitted when token bridging is initiated.
   * @param sender The indexed sender address.
   * @param recipient The indexed recipient address.
   * @param token The indexed token address.
   * @param amount The token amount.
   */
  event BridgingInitiatedV2(address indexed sender, address indexed recipient, address indexed token, uint256 amount);

  /**
   * @notice Emitted when token bridging is finalized.
   * @dev DEPRECATED in favor of BridgingFinalizedV2.
   * @param nativeToken The indexed native token address.
   * @param bridgedToken The indexed bridged token address.
   * @param amount The indexed token amount.
   * @param recipient The recipient address.
   */
  event BridgingFinalized(
    address indexed nativeToken,
    address indexed bridgedToken,
    uint256 indexed amount,
    address recipient
  );

  /**
   * @notice Emitted when token bridging is finalized.
   * @param nativeToken The indexed native token address.
   * @param bridgedToken The indexed bridged token address.
   * @param amount The token amount.
   * @param recipient The indexed recipient address.
   */
  event BridgingFinalizedV2(
    address indexed nativeToken,
    address indexed bridgedToken,
    uint256 amount,
    address indexed recipient
  );

  /**
   * @notice Emitted when a new token is seen being bridged on the origin chain for the first time.
   * @param token The indexed token address.
   */
  event NewToken(address indexed token);

  /**
   * @notice Emitted when a new token is deployed.
   * @param bridgedToken The indexed bridged token address.
   * @param nativeToken The indexed native token address.
   */
  event NewTokenDeployed(address indexed bridgedToken, address indexed nativeToken);

  /**
   * @notice Emitted when the remote token bridge is set.
   * @param remoteTokenBridge The indexed remote token bridge address.
   * @param setBy The indexed address that set the remote token bridge.
   */
  event RemoteTokenBridgeSet(address indexed remoteTokenBridge, address indexed setBy);

  /**
   * @notice Emitted when the token is set as deployed.
   * @dev This can be triggered by anyone calling confirmDeployment on the alternate chain.
   * @param token The indexed token address.
   */
  event TokenDeployed(address indexed token);

  /**
   * @notice Emitted when the token deployment is confirmed.
   * @dev This can be triggered by anyone provided there is correctly mapped token data.
   * @param tokens The token address list.
   * @param confirmedBy The indexed address confirming deployment.
   */
  event DeploymentConfirmed(address[] tokens, address indexed confirmedBy);

  /**
   * @notice Emitted when the message service address is set.
   * @param newMessageService The indexed new message service address.
   * @param oldMessageService The indexed old message service address.
   * @param setBy The indexed address setting the new message service address.
   */
  event MessageServiceUpdated(
    address indexed newMessageService,
    address indexed oldMessageService,
    address indexed setBy
  );

  /**
   * @dev Thrown when attempting to bridge a reserved token.
   */
  error ReservedToken(address token);

  /**
   * @dev Thrown when the remote token bridge is already set.
   */
  error RemoteTokenBridgeAlreadySet(address remoteTokenBridge);

  /**
   * @dev Thrown when attempting to reserve an already bridged token.
   */
  error AlreadyBridgedToken(address token);

  /**
   * @dev Thrown when the permit data is invalid.
   */
  error InvalidPermitData(bytes4 permitData, bytes4 permitSelector);

  /**
   * @dev Thrown when the permit is not from the sender.
   */
  error PermitNotFromSender(address owner);

  /**
   * @dev Thrown when the permit does not grant spending to the bridge.
   */
  error PermitNotAllowingBridge(address spender);

  /**
   * @dev Thrown when the amount being bridged is zero.
   */
  error ZeroAmountNotAllowed(uint256 amount);

  /**
   * @dev Thrown when trying to unreserve a non-reserved token.
   */
  error NotReserved(address token);

  /**
   * @dev Thrown when trying to confirm deployment of a non-deployed token.
   */
  error TokenNotDeployed(address token);

  /**
   * @dev Thrown when trying to set a custom contract on a bridged token.
   */
  error AlreadyBrigedToNativeTokenSet(address token);

  /**
   * @dev Thrown when trying to set a custom contract on an already set token.
   */
  error NativeToBridgedTokenAlreadySet(address token);

  /**
   * @dev Thrown when trying to set a token that is already either native, deployed or reserved.
   */
  error StatusAddressNotAllowed(address token);

  /**
   * @dev Thrown when the decimals for a token cannot be determined.
   */
  error DecimalsAreUnknown(address token);

  /**
   * @dev Thrown when the token list is empty.
   */
  error TokenListEmpty();

  /**
   * @notice Similar to `bridgeToken` function but allows to pass additional
   *   permit data to do the ERC20 approval in a single transaction.
   * @param _token The address of the token to be bridged.
   * @param _amount The amount of the token to be bridged.
   * @param _recipient The address that will receive the tokens on the other chain.
   * @param _permitData The permit data for the token, if applicable.
   */
  function bridgeTokenWithPermit(
    address _token,
    uint256 _amount,
    address _recipient,
    bytes calldata _permitData
  ) external payable;

  /**
   * @dev It can only be called from the Message Service. To finalize the bridging
   *   process, a user or postmen needs to use the `claimMessage` function of the
   *   Message Service to trigger the transaction.
   * @param _nativeToken The address of the token on its native chain.
   * @param _amount The amount of the token to be received.
   * @param _recipient The address that will receive the tokens.
   * @param _chainId The source chainId or target chaindId for this token
   * @param _tokenMetadata Additional data used to deploy the bridged token if it
   *   doesn't exist already.
   */
  function completeBridging(
    address _nativeToken,
    uint256 _amount,
    address _recipient,
    uint256 _chainId,
    bytes calldata _tokenMetadata
  ) external;

  /**
   * @dev Change the status to DEPLOYED to the tokens passed in parameter
   *    Will call the method setDeployed on the other chain using the message Service
   * @param _tokens Array of bridged tokens that have been deployed.
   */
  function confirmDeployment(address[] memory _tokens) external payable;

  /**
   * @dev Change the address of the Message Service.
   * @param _messageService The address of the new Message Service.
   */
  function setMessageService(address _messageService) external;

  /**
   * @dev It can only be called from the Message Service. To change the status of
   *   the native tokens to DEPLOYED meaning they have been deployed on the other chain
   *   a user or postman needs to use the `claimMessage` function of the
   *   Message Service to trigger the transaction.
   * @param _nativeTokens The addresses of the native tokens.
   */
  function setDeployed(address[] memory _nativeTokens) external;

  /**
   * @dev Linea can reserve tokens. In this case, the token cannot be bridged.
   *   Linea can only reserve tokens that have not been bridged before.
   * @notice Make sure that _token is native to the current chain
   *   where you are calling this function from
   * @param _token The address of the token to be set as reserved.
   */
  function setReserved(address _token) external;

  /**
   * @dev Sets the address of the remote token bridge. Can only be called once.
   * @param _remoteTokenBridge The address of the remote token bridge to be set.
   */
  function setRemoteTokenBridge(address _remoteTokenBridge) external;

  /**
   * @dev Removes a token from the reserved list.
   * @param _token The address of the token to be removed from the reserved list.
   */
  function removeReserved(address _token) external;

  /**
   * @dev Linea can set a custom ERC20 contract for specific ERC20.
   *   For security purpose, Linea can only call this function if the token has
   *   not been bridged yet.
   * @param _nativeToken address of the token on the source chain.
   * @param _targetContract address of the custom contract.
   */
  function setCustomContract(address _nativeToken, address _targetContract) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity 0.8.19;

/**
 * @title Contract to fill space in storage to maintain storage layout.
 * @author ConsenSys Software Inc.
 * @custom:security-contact [email protected]
 */
abstract contract StorageFiller39 {
  /// @dev Keep free storage slots for future implementation updates to avoid storage collision.
  uint256[39] private __gap_39;
}

{
  "viaIR": false,
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "evmVersion": "london",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

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