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// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import {ISettlementModule} from 'interfaces/common/ISettlementModule.sol';
import {IXERC20} from 'interfaces/common/IXERC20.sol';
import {IXERC20Module} from 'interfaces/intent/modules/IXERC20Module.sol';

/**
 * @title XERC20Module
 * @notice Module for handling minting and burning through XERC20 specific methods
 */
contract XERC20Module is IXERC20Module {
  /// @inheritdoc IXERC20Module
  mapping(address _user => mapping(address _asset => uint256 _amount)) public mintable;

  /// @inheritdoc IXERC20Module
  address public spoke;

  /**
   * @notice Check that the function is called by the local `EverclearSpoke`
   */
  modifier onlySpoke() {
    if (msg.sender != spoke) revert XERC20Module_HandleStrategy_OnlySpoke();
    _;
  }

  constructor(
    address _spoke
  ) {
    spoke = _spoke;
  }

  /// @inheritdoc ISettlementModule
  function handleMintStrategy(
    address _asset,
    address _recipient,
    address _fallbackRecipient,
    uint256 _amount,
    bytes calldata
  ) external onlySpoke returns (bool _success) {
    uint256 _limit = IXERC20(_asset).mintingCurrentLimitOf(address(this));
    if (_amount <= _limit) {
      try IXERC20(_asset).mint(_recipient, _amount) {
        _success = true;
      } catch {}
    }
    if (!_success) {
      mintable[_fallbackRecipient][_asset] += _amount;
      emit HandleMintStrategyFailed(_asset, _recipient, _amount);
    }
  }

  /// @inheritdoc ISettlementModule
  function handleBurnStrategy(address _asset, address _user, uint256 _amount, bytes calldata) external onlySpoke {
    uint256 _limit = IXERC20(_asset).burningMaxLimitOf(address(this));
    if (_limit < _amount) revert XERC20Module_HandleBurnStrategy_InsufficientBurningLimit(_asset, _limit, _amount);

    IXERC20(_asset).burn(_user, _amount);
  }

  /// @inheritdoc IXERC20Module
  function mintDebt(address _asset, address _recipient, uint256 _amount) external {
    uint256 _limit = IXERC20(_asset).mintingMaxLimitOf(address(this));

    if (_limit < _amount) revert XERC20Module_MintDebt_InsufficientMintingLimit(_asset, _limit, _amount);

    mintable[_recipient][_asset] -= _amount;
    IXERC20(_asset).mint(_recipient, _amount);

    emit DebtMinted(_asset, _recipient, _amount);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**
 * @title ISettlementModule
 * @notice Interface for the base settlement module
 */
interface ISettlementModule {
  /*///////////////////////////////////////////////////////////////
                              LOGIC
  //////////////////////////////////////////////////////////////*/

  /**
   * @notice Handle a mint action for a specific strategy
   * @param _asset The address of the asset to mint
   * @param _recipient The recipient of the minted assets
   * @param _fallbackRecipient The fallback recipient of the minted assets (in case of failure)
   * @param _amount The amount to mint
   * @param _data Extra data needed by some modules
   * @return _success The outcome of the minting strategy
   * @dev In case of failure, the parent module will handle the operation accordingly
   */
  function handleMintStrategy(
    address _asset,
    address _recipient,
    address _fallbackRecipient,
    uint256 _amount,
    bytes calldata _data
  ) external returns (bool _success);

  /**
   * @notice Handle a burn action for a specific strategy
   * @param _asset The address of the asset to burn
   * @param _user The user whose assets are being burned
   * @param _amount The amount to burn
   * @param _data Extra data needed by some modules
   * @dev In case of failure, the `newIntent` flow will revert
   */
  function handleBurnStrategy(address _asset, address _user, uint256 _amount, bytes calldata _data) external;
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.4 <0.9.0;

interface IXERC20 {
  /**
   * @notice Contains the full minting and burning data for a particular bridge
   *
   * @param minterParams The minting parameters for the bridge
   * @param burnerParams The burning parameters for the bridge
   */
  struct Bridge {
    BridgeParameters minterParams;
    BridgeParameters burnerParams;
  }

  /**
   * @notice Contains the mint or burn parameters for a bridge
   *
   * @param timestamp The timestamp of the last mint/burn
   * @param ratePerSecond The rate per second of the bridge
   * @param maxLimit The max limit of the bridge
   * @param currentLimit The current limit of the bridge
   */
  struct BridgeParameters {
    uint256 timestamp;
    uint256 ratePerSecond;
    uint256 maxLimit;
    uint256 currentLimit;
  }

  /**
   * @notice Emits when a lockbox is set
   *
   * @param _lockbox The address of the lockbox
   */
  event LockboxSet(address _lockbox);

  /**
   * @notice Emits when a limit is set
   *
   * @param _mintingLimit The updated minting limit we are setting to the bridge
   * @param _burningLimit The updated burning limit we are setting to the bridge
   * @param _bridge The address of the bridge we are setting the limit too
   */
  event BridgeLimitsSet(uint256 _mintingLimit, uint256 _burningLimit, address indexed _bridge);

  /**
   * @notice Reverts when a user with too low of a limit tries to call mint/burn
   */
  error IXERC20_NotHighEnoughLimits();

  /**
   * @notice Reverts when caller is not the factory
   */
  error IXERC20_NotFactory();

  /**
   * @notice Reverts when limits are too high
   */
  error IXERC20_LimitsTooHigh();

  /**
   * @notice Sets the lockbox address
   *
   * @param _lockbox The address of the lockbox
   */
  function setLockbox(
    address _lockbox
  ) external;

  /**
   * @notice Updates the limits of any bridge
   * @dev Can only be called by the owner
   * @param _mintingLimit The updated minting limit we are setting to the bridge
   * @param _burningLimit The updated burning limit we are setting to the bridge
   * @param _bridge The address of the bridge we are setting the limits too
   */
  function setLimits(address _bridge, uint256 _mintingLimit, uint256 _burningLimit) external;

  /**
   * @notice Mints tokens for a user
   * @dev Can only be called by a minter
   * @param _user The address of the user who needs tokens minted
   * @param _amount The amount of tokens being minted
   */
  function mint(address _user, uint256 _amount) external;

  /**
   * @notice Burns tokens for a user
   * @dev Can only be called by a minter
   * @param _user The address of the user who needs tokens burned
   * @param _amount The amount of tokens being burned
   */
  function burn(address _user, uint256 _amount) external;

  /**
   * @notice Returns the max limit of a minter
   *
   * @param _minter The minter we are viewing the limits of
   *  @return _limit The limit the minter has
   */
  function mintingMaxLimitOf(
    address _minter
  ) external view returns (uint256 _limit);

  /**
   * @notice Returns the max limit of a bridge
   *
   * @param _bridge the bridge we are viewing the limits of
   * @return _limit The limit the bridge has
   */
  function burningMaxLimitOf(
    address _bridge
  ) external view returns (uint256 _limit);

  /**
   * @notice Returns the current limit of a minter
   *
   * @param _minter The minter we are viewing the limits of
   * @return _limit The limit the minter has
   */
  function mintingCurrentLimitOf(
    address _minter
  ) external view returns (uint256 _limit);

  /**
   * @notice Returns the current limit of a bridge
   *
   * @param _bridge the bridge we are viewing the limits of
   * @return _limit The limit the bridge has
   */
  function burningCurrentLimitOf(
    address _bridge
  ) external view returns (uint256 _limit);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import {ISettlementModule} from 'interfaces/common/ISettlementModule.sol';

/**
 * @title Interface
 * @notice Interface for
 */
interface IXERC20Module is ISettlementModule {
  /*///////////////////////////////////////////////////////////////
                              EVENTS
  //////////////////////////////////////////////////////////////*/

  /**
   * @notice Emitted when debt is minted in favor of a user
   * @param _asset The address of the minted asset
   * @param _recipient The address of the minted tokens recipient
   * @param _amount The amount of tokens minted
   */
  event DebtMinted(address indexed _asset, address indexed _recipient, uint256 _amount);

  /**
   * @notice Emitted when the handle mint strategy fails
   * @param _asset The address of the minted asset
   * @param _recipient The address of the minted tokens recipient
   * @param _amount The amount of tokens minted
   */
  event HandleMintStrategyFailed(address indexed _asset, address indexed _recipient, uint256 _amount);

  /*///////////////////////////////////////////////////////////////
                              ERRORS
  //////////////////////////////////////////////////////////////*/

  /**
   * @notice Thrown when the XERC20 minting limit is lower than the amount being minted
   * @param _asset The address of the asset
   * @param _limit The hit limit
   * @param _amount The amount trying to be minted
   */
  error XERC20Module_MintDebt_InsufficientMintingLimit(address _asset, uint256 _limit, uint256 _amount);

  /**
   * @notice Thrown when the XERC20 burning limit is lower than the amount being burned
   * @param _asset The address of the asset
   * @param _limit The hit limit
   * @param _amount The amount trying to be burned
   */
  error XERC20Module_HandleBurnStrategy_InsufficientBurningLimit(address _asset, uint256 _limit, uint256 _amount);

  /**
   * @notice Thrown when the caller is not the `EverclearSpoke`
   */
  error XERC20Module_HandleStrategy_OnlySpoke();

  /*///////////////////////////////////////////////////////////////
                              LOGIC
  //////////////////////////////////////////////////////////////*/

  /**
   * @notice Mints owed assets to an account
   * @param _asset The address of the asset to mint
   * @param _recipient The recipient of the minted assets
   * @param _amount The amount to mint
   */
  function mintDebt(address _asset, address _recipient, uint256 _amount) external;

  /*///////////////////////////////////////////////////////////////
                              VIEWS
  //////////////////////////////////////////////////////////////*/

  /**
   * @notice Returns the address of the local `EverclearSpoke`
   * @return _spoke The address of the `EverclearSpoke`
   */
  function spoke() external view returns (address _spoke);

  /**
   * @notice Returns the amount of tokens mintable by a user
   * @param _account The address of the owed user
   * @param _asset The address of the mintable asset
   * @return _amount The total mintable amount
   */
  function mintable(address _account, address _asset) external view returns (uint256 _amount);
}

{
  "remappings": [
    "ds-test/=../../node_modules/ds-test/src/",
    "forge-std/=../../node_modules/forge-std/src/",
    "isolmate/=../../node_modules/isolmate/src/",
    "@hyperlane/=../../node_modules/@hyperlane-xyz/core/contracts/",
    "@openzeppelin/=../../node_modules/@openzeppelin/",
    "@upgrades/=lib/openzeppelin-foundry-upgrades/src/",
    "xerc20/=lib/xerc20/solidity/contracts/",
    "contracts/=src/contracts/",
    "interfaces/=src/interfaces/",
    "utils/=script/utils/",
    "@eth-optimism/=../../node_modules/@eth-optimism/",
    "@hyperlane-xyz/=../../node_modules/@hyperlane-xyz/",
    "@layerzerolabs/=../../node_modules/@layerzerolabs/",
    "erc4626-tests/=lib/xerc20/lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-gas-snapshot/=lib/xerc20/lib/permit2/lib/forge-gas-snapshot/src/",
    "fx-portal/=../../node_modules/fx-portal/",
    "hardhat/=lib/openzeppelin-foundry-upgrades/node_modules/hardhat/",
    "openzeppelin-contracts/=lib/xerc20/lib/openzeppelin-contracts/",
    "openzeppelin-foundry-upgrades/=lib/openzeppelin-foundry-upgrades/src/",
    "openzeppelin/=lib/xerc20/lib/openzeppelin-contracts/contracts/",
    "permit2/=lib/xerc20/lib/permit2/",
    "prb-test/=lib/xerc20/lib/prb-test/src/",
    "prb/test/=lib/xerc20/lib/prb-test/src/",
    "solidity-stringutils/=lib/openzeppelin-foundry-upgrades/lib/solidity-stringutils/",
    "solmate/=lib/xerc20/lib/permit2/lib/solmate/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "viaIR": false,
  "libraries": {}
}

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000000000000000000000000a05A3380889115bf313f1Db9d5f335157Be4D816

-----Decoded View---------------
Arg [0] : _spoke (address): 0xa05A3380889115bf313f1Db9d5f335157Be4D816

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000a05A3380889115bf313f1Db9d5f335157Be4D816