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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

import {VersionedInitializable} from '../misc/aave-upgradeability/VersionedInitializable.sol';
import {VariableDebtToken, IPool, IInitializableDebtToken, Errors} from '../protocol/tokenization/VariableDebtToken.sol';

/**
 * @title Aave ERC20 VariableDebtToken Instance
 * @author BGD Labs
 * @notice Instance of the variable debt token for the Aave protocol
 */
contract VariableDebtTokenInstance is VariableDebtToken {
  uint256 public constant DEBT_TOKEN_REVISION = 4;

  constructor(IPool pool, address rewardsController) VariableDebtToken(pool, rewardsController) {}

  /// @inheritdoc VersionedInitializable
  function getRevision() internal pure virtual override returns (uint256) {
    return DEBT_TOKEN_REVISION;
  }

  /// @inheritdoc IInitializableDebtToken
  function initialize(
    IPool initializingPool,
    address underlyingAsset,
    uint8 debtTokenDecimals,
    string memory debtTokenName,
    string memory debtTokenSymbol,
    bytes calldata params
  ) external override initializer {
    require(initializingPool == POOL, Errors.PoolAddressesDoNotMatch());
    _setName(debtTokenName);
    _setSymbol(debtTokenSymbol);
    _setDecimals(debtTokenDecimals);

    _underlyingAsset = underlyingAsset;

    _domainSeparator = _calculateDomainSeparator();

    emit Initialized(
      underlyingAsset,
      address(POOL),
      address(REWARDS_CONTROLLER),
      debtTokenDecimals,
      debtTokenName,
      debtTokenSymbol,
      params
    );
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

/**
 * @title VersionedInitializable
 * @author Aave, inspired by the OpenZeppelin Initializable contract
 * @notice Helper contract to implement initializer functions. To use it, replace
 * the constructor with a function that has the `initializer` modifier.
 * @dev WARNING: Unlike constructors, initializer functions must be manually
 * invoked. This applies both to deploying an Initializable contract, as well
 * as extending an Initializable contract via inheritance.
 * WARNING: When used with inheritance, manual care must be taken to not invoke
 * a parent initializer twice, or ensure that all initializers are idempotent,
 * because this is not dealt with automatically as with constructors.
 */
abstract contract VersionedInitializable {
  /**
   * @dev Initializes the implementation contract at the current revision.
   * In practice this breaks further initialization of the implementation.
   */
  constructor() {
    // break the initialize
    lastInitializedRevision = getRevision();
  }

  /**
   * @dev Indicates that the contract has been initialized.
   */
  uint256 private lastInitializedRevision = 0;

  /**
   * @dev Indicates that the contract is in the process of being initialized.
   */
  bool private initializing;

  /**
   * @dev Modifier to use in the initializer function of a contract.
   */
  modifier initializer() {
    uint256 revision = getRevision();
    require(
      initializing || isConstructor() || revision > lastInitializedRevision,
      'Contract instance has already been initialized'
    );

    bool isTopLevelCall = !initializing;
    if (isTopLevelCall) {
      initializing = true;
      lastInitializedRevision = revision;
    }

    _;

    if (isTopLevelCall) {
      initializing = false;
    }
  }

  /**
   * @notice Returns the revision number of the contract
   * @dev Needs to be defined in the inherited class as a constant.
   * @return The revision number
   */
  function getRevision() internal pure virtual returns (uint256);

  /**
   * @notice Returns true if and only if the function is running in the constructor
   * @return True if the function is running in the constructor
   */
  function isConstructor() private view returns (bool) {
    // extcodesize checks the size of the code stored in an address, and
    // address returns the current address. Since the code is still not
    // deployed when running a constructor, any checks on its code size will
    // yield zero, making it an effective way to detect if a contract is
    // under construction or not.
    uint256 cs;
    //solium-disable-next-line
    assembly {
      cs := extcodesize(address())
    }
    return cs == 0;
  }

  // Reserved storage space to allow for layout changes in the future.
  uint256[50] private ______gap;
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.10;

import {IERC20} from '../../dependencies/openzeppelin/contracts/IERC20.sol';
import {SafeCast} from 'openzeppelin-contracts/contracts/utils/math/SafeCast.sol';
import {Errors} from '../libraries/helpers/Errors.sol';
import {IPool} from '../../interfaces/IPool.sol';
import {IInitializableDebtToken} from '../../interfaces/IInitializableDebtToken.sol';
import {IVariableDebtToken} from '../../interfaces/IVariableDebtToken.sol';
import {EIP712Base} from './base/EIP712Base.sol';
import {DebtTokenBase} from './base/DebtTokenBase.sol';
import {ScaledBalanceTokenBase} from './base/ScaledBalanceTokenBase.sol';
import {TokenMath} from '../libraries/helpers/TokenMath.sol';

/**
 * @title VariableDebtToken
 * @author Aave
 * @notice Implements a variable debt token to track the borrowing positions of users
 * at variable rate mode
 * @dev Transfer and approve functionalities are disabled since its a non-transferable token
 */
abstract contract VariableDebtToken is DebtTokenBase, ScaledBalanceTokenBase, IVariableDebtToken {
  using TokenMath for uint256;
  using SafeCast for uint256;

  // @note This gap is made only to add the `__DEPRECATED_AND_NEVER_TO_BE_REUSED` variable
  // The length of this gap can be decreased in order to add new variables
  uint256[3] private __unusedGap;

  // @note deprecated in v3.4.0 upgrade in the GHO vToken.
  // This storage slot can't be used in all vTokens, because the GHO vToken
  // had a mapping here (before v3.4.0) and right now has some non-zero mapping values in this slot.
  // old version: mapping(address => GhoUserState) internal _ghoUserState
  // This storage slot MUST NOT be reused to avoid storage layout conflicts.
  bytes32 private __DEPRECATED_AND_NEVER_TO_BE_REUSED;

  /**
   * @dev Constructor.
   * @param pool The address of the Pool contract
   * @param rewardsController The address of the rewards controller contract
   */
  constructor(
    IPool pool,
    address rewardsController
  )
    DebtTokenBase()
    ScaledBalanceTokenBase(
      pool,
      'VARIABLE_DEBT_TOKEN_IMPL',
      'VARIABLE_DEBT_TOKEN_IMPL',
      0,
      rewardsController
    )
  {
    // Intentionally left blank
  }

  /// @inheritdoc IInitializableDebtToken
  function initialize(
    IPool initializingPool,
    address underlyingAsset,
    uint8 debtTokenDecimals,
    string memory debtTokenName,
    string memory debtTokenSymbol,
    bytes calldata params
  ) external virtual;

  /// @inheritdoc IERC20
  function balanceOf(address user) public view virtual override returns (uint256) {
    return
      super.balanceOf(user).getVTokenBalance(
        POOL.getReserveNormalizedVariableDebt(_underlyingAsset)
      );
  }

  /// @inheritdoc IVariableDebtToken
  function mint(
    address user,
    address onBehalfOf,
    uint256 amount,
    uint256 scaledAmount,
    uint256 index
  ) external virtual override onlyPool returns (uint256) {
    uint256 scaledBalanceOfUser = super.balanceOf(user);

    if (user != onBehalfOf) {
      // This comment explains the logic behind the borrow allowance spent calculation.
      //
      // Problem:
      // Simply decreasing the allowance by the input `amount` is not ideal for scaled-balance tokens.
      // Due to rounding, the actual increase in the user's debt (`debt_increase`) can be slightly
      // larger than the input `amount`.
      //
      // Definitions:
      // - `amount`: The unscaled amount to be borrowed, passed as the `amount` argument.
      // - `debt_increase`: The actual unscaled debt increase for the user.
      // - `allowance_spent`: The unscaled amount deducted from the delegatee's borrow allowance. Equivalent to `debt_increase`.
      //
      // Solution:
      // To handle this, `allowance_spent` must be exactly equal to `debt_increase`.
      // We calculate `debt_increase` precisely by simulating the effect of the borrow on the user's balance.
      // By passing `debt_increase` to `_decreaseBorrowAllowance`, we ensure `allowance_spent` is as close as possible to `debt_increase`.
      //
      // Backward Compatibility & Guarantees:
      // This implementation is backward-compatible and secure. The `_decreaseBorrowAllowance` function has a critical feature:
      // 1. It REQUIRES the borrow allowance to be >= `amount` (the user's requested borrow amount).
      // 2. The amount consumed from the allowance is `debt_increase`, but it is capped at the `currentAllowance`.
      // This means if a user has a borrow allowance of 100 wei and `borrow` is called with an `amount` of 100, the call will succeed
      // even if the calculated `debt_increase` is 101 wei. In that specific scenario, the allowance consumed will be 100 wei (since that is the `currentAllowance`),
      // and the transaction will not revert. But if the allowance is 101 wei, then the allowance consumed will be 101 wei.
      //
      // uint256 debt_increase = balanceAfter - balanceBefore = (scaledBalanceOfUser + scaledAmount).getVTokenBalance(index) - scaledBalanceOfUser.getVTokenBalance(index);
      // Due to limitations of the solidity compiler, the calculation is inlined for gas efficiency.
      _decreaseBorrowAllowance(
        onBehalfOf,
        user,
        amount,
        (scaledBalanceOfUser + scaledAmount).getVTokenBalance(index) -
          scaledBalanceOfUser.getVTokenBalance(index)
      );
    }
    _mintScaled({
      caller: user,
      onBehalfOf: onBehalfOf,
      amountScaled: scaledAmount,
      index: index,
      getTokenBalance: TokenMath.getVTokenBalance
    });
    return scaledTotalSupply();
  }

  /// @inheritdoc IVariableDebtToken
  function burn(
    address from,
    uint256 scaledAmount,
    uint256 index
  ) external virtual override onlyPool returns (bool, uint256) {
    return (
      _burnScaled({
        user: from,
        target: address(0),
        amountScaled: scaledAmount,
        index: index,
        getTokenBalance: TokenMath.getVTokenBalance
      }),
      scaledTotalSupply()
    );
  }

  /// @inheritdoc IERC20
  function totalSupply() public view virtual override returns (uint256) {
    return
      super.totalSupply().getVTokenBalance(POOL.getReserveNormalizedVariableDebt(_underlyingAsset));
  }

  /// @inheritdoc EIP712Base
  function _EIP712BaseId() internal view override returns (string memory) {
    return name();
  }

  /**
   * @dev Being non transferrable, the debt token does not implement any of the
   * standard ERC20 functions for transfer and allowance.
   */
  function transfer(address, uint256) external virtual override returns (bool) {
    revert Errors.OperationNotSupported();
  }

  function allowance(address, address) external view virtual override returns (uint256) {
    revert Errors.OperationNotSupported();
  }

  function approve(address, uint256) external virtual override returns (bool) {
    revert Errors.OperationNotSupported();
  }

  function transferFrom(address, address, uint256) external virtual override returns (bool) {
    revert Errors.OperationNotSupported();
  }

  function increaseAllowance(address, uint256) external virtual override returns (bool) {
    revert Errors.OperationNotSupported();
  }

  function decreaseAllowance(address, uint256) external virtual override returns (bool) {
    revert Errors.OperationNotSupported();
  }

  /// @inheritdoc IVariableDebtToken
  function UNDERLYING_ASSET_ADDRESS() external view override returns (address) {
    return _underlyingAsset;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
  /**
   * @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 `recipient`.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount) external returns (bool);

  /**
   * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.

pragma solidity ^0.8.20;

/**
 * @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such an operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeCast {
    /**
     * @dev Value doesn't fit in an uint of `bits` size.
     */
    error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);

    /**
     * @dev An int value doesn't fit in an uint of `bits` size.
     */
    error SafeCastOverflowedIntToUint(int256 value);

    /**
     * @dev Value doesn't fit in an int of `bits` size.
     */
    error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);

    /**
     * @dev An uint value doesn't fit in an int of `bits` size.
     */
    error SafeCastOverflowedUintToInt(uint256 value);

    /**
     * @dev Returns the downcasted uint248 from uint256, reverting on
     * overflow (when the input is greater than largest uint248).
     *
     * Counterpart to Solidity's `uint248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     */
    function toUint248(uint256 value) internal pure returns (uint248) {
        if (value > type(uint248).max) {
            revert SafeCastOverflowedUintDowncast(248, value);
        }
        return uint248(value);
    }

    /**
     * @dev Returns the downcasted uint240 from uint256, reverting on
     * overflow (when the input is greater than largest uint240).
     *
     * Counterpart to Solidity's `uint240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     */
    function toUint240(uint256 value) internal pure returns (uint240) {
        if (value > type(uint240).max) {
            revert SafeCastOverflowedUintDowncast(240, value);
        }
        return uint240(value);
    }

    /**
     * @dev Returns the downcasted uint232 from uint256, reverting on
     * overflow (when the input is greater than largest uint232).
     *
     * Counterpart to Solidity's `uint232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     */
    function toUint232(uint256 value) internal pure returns (uint232) {
        if (value > type(uint232).max) {
            revert SafeCastOverflowedUintDowncast(232, value);
        }
        return uint232(value);
    }

    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        if (value > type(uint224).max) {
            revert SafeCastOverflowedUintDowncast(224, value);
        }
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint216 from uint256, reverting on
     * overflow (when the input is greater than largest uint216).
     *
     * Counterpart to Solidity's `uint216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     */
    function toUint216(uint256 value) internal pure returns (uint216) {
        if (value > type(uint216).max) {
            revert SafeCastOverflowedUintDowncast(216, value);
        }
        return uint216(value);
    }

    /**
     * @dev Returns the downcasted uint208 from uint256, reverting on
     * overflow (when the input is greater than largest uint208).
     *
     * Counterpart to Solidity's `uint208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     */
    function toUint208(uint256 value) internal pure returns (uint208) {
        if (value > type(uint208).max) {
            revert SafeCastOverflowedUintDowncast(208, value);
        }
        return uint208(value);
    }

    /**
     * @dev Returns the downcasted uint200 from uint256, reverting on
     * overflow (when the input is greater than largest uint200).
     *
     * Counterpart to Solidity's `uint200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     */
    function toUint200(uint256 value) internal pure returns (uint200) {
        if (value > type(uint200).max) {
            revert SafeCastOverflowedUintDowncast(200, value);
        }
        return uint200(value);
    }

    /**
     * @dev Returns the downcasted uint192 from uint256, reverting on
     * overflow (when the input is greater than largest uint192).
     *
     * Counterpart to Solidity's `uint192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     */
    function toUint192(uint256 value) internal pure returns (uint192) {
        if (value > type(uint192).max) {
            revert SafeCastOverflowedUintDowncast(192, value);
        }
        return uint192(value);
    }

    /**
     * @dev Returns the downcasted uint184 from uint256, reverting on
     * overflow (when the input is greater than largest uint184).
     *
     * Counterpart to Solidity's `uint184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     */
    function toUint184(uint256 value) internal pure returns (uint184) {
        if (value > type(uint184).max) {
            revert SafeCastOverflowedUintDowncast(184, value);
        }
        return uint184(value);
    }

    /**
     * @dev Returns the downcasted uint176 from uint256, reverting on
     * overflow (when the input is greater than largest uint176).
     *
     * Counterpart to Solidity's `uint176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     */
    function toUint176(uint256 value) internal pure returns (uint176) {
        if (value > type(uint176).max) {
            revert SafeCastOverflowedUintDowncast(176, value);
        }
        return uint176(value);
    }

    /**
     * @dev Returns the downcasted uint168 from uint256, reverting on
     * overflow (when the input is greater than largest uint168).
     *
     * Counterpart to Solidity's `uint168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     */
    function toUint168(uint256 value) internal pure returns (uint168) {
        if (value > type(uint168).max) {
            revert SafeCastOverflowedUintDowncast(168, value);
        }
        return uint168(value);
    }

    /**
     * @dev Returns the downcasted uint160 from uint256, reverting on
     * overflow (when the input is greater than largest uint160).
     *
     * Counterpart to Solidity's `uint160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     */
    function toUint160(uint256 value) internal pure returns (uint160) {
        if (value > type(uint160).max) {
            revert SafeCastOverflowedUintDowncast(160, value);
        }
        return uint160(value);
    }

    /**
     * @dev Returns the downcasted uint152 from uint256, reverting on
     * overflow (when the input is greater than largest uint152).
     *
     * Counterpart to Solidity's `uint152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     */
    function toUint152(uint256 value) internal pure returns (uint152) {
        if (value > type(uint152).max) {
            revert SafeCastOverflowedUintDowncast(152, value);
        }
        return uint152(value);
    }

    /**
     * @dev Returns the downcasted uint144 from uint256, reverting on
     * overflow (when the input is greater than largest uint144).
     *
     * Counterpart to Solidity's `uint144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     */
    function toUint144(uint256 value) internal pure returns (uint144) {
        if (value > type(uint144).max) {
            revert SafeCastOverflowedUintDowncast(144, value);
        }
        return uint144(value);
    }

    /**
     * @dev Returns the downcasted uint136 from uint256, reverting on
     * overflow (when the input is greater than largest uint136).
     *
     * Counterpart to Solidity's `uint136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     */
    function toUint136(uint256 value) internal pure returns (uint136) {
        if (value > type(uint136).max) {
            revert SafeCastOverflowedUintDowncast(136, value);
        }
        return uint136(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        if (value > type(uint128).max) {
            revert SafeCastOverflowedUintDowncast(128, value);
        }
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint120 from uint256, reverting on
     * overflow (when the input is greater than largest uint120).
     *
     * Counterpart to Solidity's `uint120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     */
    function toUint120(uint256 value) internal pure returns (uint120) {
        if (value > type(uint120).max) {
            revert SafeCastOverflowedUintDowncast(120, value);
        }
        return uint120(value);
    }

    /**
     * @dev Returns the downcasted uint112 from uint256, reverting on
     * overflow (when the input is greater than largest uint112).
     *
     * Counterpart to Solidity's `uint112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     */
    function toUint112(uint256 value) internal pure returns (uint112) {
        if (value > type(uint112).max) {
            revert SafeCastOverflowedUintDowncast(112, value);
        }
        return uint112(value);
    }

    /**
     * @dev Returns the downcasted uint104 from uint256, reverting on
     * overflow (when the input is greater than largest uint104).
     *
     * Counterpart to Solidity's `uint104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     */
    function toUint104(uint256 value) internal pure returns (uint104) {
        if (value > type(uint104).max) {
            revert SafeCastOverflowedUintDowncast(104, value);
        }
        return uint104(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        if (value > type(uint96).max) {
            revert SafeCastOverflowedUintDowncast(96, value);
        }
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint88 from uint256, reverting on
     * overflow (when the input is greater than largest uint88).
     *
     * Counterpart to Solidity's `uint88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     */
    function toUint88(uint256 value) internal pure returns (uint88) {
        if (value > type(uint88).max) {
            revert SafeCastOverflowedUintDowncast(88, value);
        }
        return uint88(value);
    }

    /**
     * @dev Returns the downcasted uint80 from uint256, reverting on
     * overflow (when the input is greater than largest uint80).
     *
     * Counterpart to Solidity's `uint80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     */
    function toUint80(uint256 value) internal pure returns (uint80) {
        if (value > type(uint80).max) {
            revert SafeCastOverflowedUintDowncast(80, value);
        }
        return uint80(value);
    }

    /**
     * @dev Returns the downcasted uint72 from uint256, reverting on
     * overflow (when the input is greater than largest uint72).
     *
     * Counterpart to Solidity's `uint72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     */
    function toUint72(uint256 value) internal pure returns (uint72) {
        if (value > type(uint72).max) {
            revert SafeCastOverflowedUintDowncast(72, value);
        }
        return uint72(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        if (value > type(uint64).max) {
            revert SafeCastOverflowedUintDowncast(64, value);
        }
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint56 from uint256, reverting on
     * overflow (when the input is greater than largest uint56).
     *
     * Counterpart to Solidity's `uint56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     */
    function toUint56(uint256 value) internal pure returns (uint56) {
        if (value > type(uint56).max) {
            revert SafeCastOverflowedUintDowncast(56, value);
        }
        return uint56(value);
    }

    /**
     * @dev Returns the downcasted uint48 from uint256, reverting on
     * overflow (when the input is greater than largest uint48).
     *
     * Counterpart to Solidity's `uint48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     */
    function toUint48(uint256 value) internal pure returns (uint48) {
        if (value > type(uint48).max) {
            revert SafeCastOverflowedUintDowncast(48, value);
        }
        return uint48(value);
    }

    /**
     * @dev Returns the downcasted uint40 from uint256, reverting on
     * overflow (when the input is greater than largest uint40).
     *
     * Counterpart to Solidity's `uint40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     */
    function toUint40(uint256 value) internal pure returns (uint40) {
        if (value > type(uint40).max) {
            revert SafeCastOverflowedUintDowncast(40, value);
        }
        return uint40(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        if (value > type(uint32).max) {
            revert SafeCastOverflowedUintDowncast(32, value);
        }
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint24 from uint256, reverting on
     * overflow (when the input is greater than largest uint24).
     *
     * Counterpart to Solidity's `uint24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     */
    function toUint24(uint256 value) internal pure returns (uint24) {
        if (value > type(uint24).max) {
            revert SafeCastOverflowedUintDowncast(24, value);
        }
        return uint24(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        if (value > type(uint16).max) {
            revert SafeCastOverflowedUintDowncast(16, value);
        }
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        if (value > type(uint8).max) {
            revert SafeCastOverflowedUintDowncast(8, value);
        }
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        if (value < 0) {
            revert SafeCastOverflowedIntToUint(value);
        }
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int248 from int256, reverting on
     * overflow (when the input is less than smallest int248 or
     * greater than largest int248).
     *
     * Counterpart to Solidity's `int248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     */
    function toInt248(int256 value) internal pure returns (int248 downcasted) {
        downcasted = int248(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(248, value);
        }
    }

    /**
     * @dev Returns the downcasted int240 from int256, reverting on
     * overflow (when the input is less than smallest int240 or
     * greater than largest int240).
     *
     * Counterpart to Solidity's `int240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     */
    function toInt240(int256 value) internal pure returns (int240 downcasted) {
        downcasted = int240(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(240, value);
        }
    }

    /**
     * @dev Returns the downcasted int232 from int256, reverting on
     * overflow (when the input is less than smallest int232 or
     * greater than largest int232).
     *
     * Counterpart to Solidity's `int232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     */
    function toInt232(int256 value) internal pure returns (int232 downcasted) {
        downcasted = int232(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(232, value);
        }
    }

    /**
     * @dev Returns the downcasted int224 from int256, reverting on
     * overflow (when the input is less than smallest int224 or
     * greater than largest int224).
     *
     * Counterpart to Solidity's `int224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toInt224(int256 value) internal pure returns (int224 downcasted) {
        downcasted = int224(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(224, value);
        }
    }

    /**
     * @dev Returns the downcasted int216 from int256, reverting on
     * overflow (when the input is less than smallest int216 or
     * greater than largest int216).
     *
     * Counterpart to Solidity's `int216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     */
    function toInt216(int256 value) internal pure returns (int216 downcasted) {
        downcasted = int216(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(216, value);
        }
    }

    /**
     * @dev Returns the downcasted int208 from int256, reverting on
     * overflow (when the input is less than smallest int208 or
     * greater than largest int208).
     *
     * Counterpart to Solidity's `int208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     */
    function toInt208(int256 value) internal pure returns (int208 downcasted) {
        downcasted = int208(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(208, value);
        }
    }

    /**
     * @dev Returns the downcasted int200 from int256, reverting on
     * overflow (when the input is less than smallest int200 or
     * greater than largest int200).
     *
     * Counterpart to Solidity's `int200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     */
    function toInt200(int256 value) internal pure returns (int200 downcasted) {
        downcasted = int200(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(200, value);
        }
    }

    /**
     * @dev Returns the downcasted int192 from int256, reverting on
     * overflow (when the input is less than smallest int192 or
     * greater than largest int192).
     *
     * Counterpart to Solidity's `int192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     */
    function toInt192(int256 value) internal pure returns (int192 downcasted) {
        downcasted = int192(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(192, value);
        }
    }

    /**
     * @dev Returns the downcasted int184 from int256, reverting on
     * overflow (when the input is less than smallest int184 or
     * greater than largest int184).
     *
     * Counterpart to Solidity's `int184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     */
    function toInt184(int256 value) internal pure returns (int184 downcasted) {
        downcasted = int184(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(184, value);
        }
    }

    /**
     * @dev Returns the downcasted int176 from int256, reverting on
     * overflow (when the input is less than smallest int176 or
     * greater than largest int176).
     *
     * Counterpart to Solidity's `int176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     */
    function toInt176(int256 value) internal pure returns (int176 downcasted) {
        downcasted = int176(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(176, value);
        }
    }

    /**
     * @dev Returns the downcasted int168 from int256, reverting on
     * overflow (when the input is less than smallest int168 or
     * greater than largest int168).
     *
     * Counterpart to Solidity's `int168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     */
    function toInt168(int256 value) internal pure returns (int168 downcasted) {
        downcasted = int168(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(168, value);
        }
    }

    /**
     * @dev Returns the downcasted int160 from int256, reverting on
     * overflow (when the input is less than smallest int160 or
     * greater than largest int160).
     *
     * Counterpart to Solidity's `int160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     */
    function toInt160(int256 value) internal pure returns (int160 downcasted) {
        downcasted = int160(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(160, value);
        }
    }

    /**
     * @dev Returns the downcasted int152 from int256, reverting on
     * overflow (when the input is less than smallest int152 or
     * greater than largest int152).
     *
     * Counterpart to Solidity's `int152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     */
    function toInt152(int256 value) internal pure returns (int152 downcasted) {
        downcasted = int152(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(152, value);
        }
    }

    /**
     * @dev Returns the downcasted int144 from int256, reverting on
     * overflow (when the input is less than smallest int144 or
     * greater than largest int144).
     *
     * Counterpart to Solidity's `int144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     */
    function toInt144(int256 value) internal pure returns (int144 downcasted) {
        downcasted = int144(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(144, value);
        }
    }

    /**
     * @dev Returns the downcasted int136 from int256, reverting on
     * overflow (when the input is less than smallest int136 or
     * greater than largest int136).
     *
     * Counterpart to Solidity's `int136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     */
    function toInt136(int256 value) internal pure returns (int136 downcasted) {
        downcasted = int136(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(136, value);
        }
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toInt128(int256 value) internal pure returns (int128 downcasted) {
        downcasted = int128(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(128, value);
        }
    }

    /**
     * @dev Returns the downcasted int120 from int256, reverting on
     * overflow (when the input is less than smallest int120 or
     * greater than largest int120).
     *
     * Counterpart to Solidity's `int120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     */
    function toInt120(int256 value) internal pure returns (int120 downcasted) {
        downcasted = int120(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(120, value);
        }
    }

    /**
     * @dev Returns the downcasted int112 from int256, reverting on
     * overflow (when the input is less than smallest int112 or
     * greater than largest int112).
     *
     * Counterpart to Solidity's `int112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     */
    function toInt112(int256 value) internal pure returns (int112 downcasted) {
        downcasted = int112(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(112, value);
        }
    }

    /**
     * @dev Returns the downcasted int104 from int256, reverting on
     * overflow (when the input is less than smallest int104 or
     * greater than largest int104).
     *
     * Counterpart to Solidity's `int104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     */
    function toInt104(int256 value) internal pure returns (int104 downcasted) {
        downcasted = int104(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(104, value);
        }
    }

    /**
     * @dev Returns the downcasted int96 from int256, reverting on
     * overflow (when the input is less than smallest int96 or
     * greater than largest int96).
     *
     * Counterpart to Solidity's `int96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toInt96(int256 value) internal pure returns (int96 downcasted) {
        downcasted = int96(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(96, value);
        }
    }

    /**
     * @dev Returns the downcasted int88 from int256, reverting on
     * overflow (when the input is less than smallest int88 or
     * greater than largest int88).
     *
     * Counterpart to Solidity's `int88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     */
    function toInt88(int256 value) internal pure returns (int88 downcasted) {
        downcasted = int88(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(88, value);
        }
    }

    /**
     * @dev Returns the downcasted int80 from int256, reverting on
     * overflow (when the input is less than smallest int80 or
     * greater than largest int80).
     *
     * Counterpart to Solidity's `int80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     */
    function toInt80(int256 value) internal pure returns (int80 downcasted) {
        downcasted = int80(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(80, value);
        }
    }

    /**
     * @dev Returns the downcasted int72 from int256, reverting on
     * overflow (when the input is less than smallest int72 or
     * greater than largest int72).
     *
     * Counterpart to Solidity's `int72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     */
    function toInt72(int256 value) internal pure returns (int72 downcasted) {
        downcasted = int72(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(72, value);
        }
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toInt64(int256 value) internal pure returns (int64 downcasted) {
        downcasted = int64(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(64, value);
        }
    }

    /**
     * @dev Returns the downcasted int56 from int256, reverting on
     * overflow (when the input is less than smallest int56 or
     * greater than largest int56).
     *
     * Counterpart to Solidity's `int56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     */
    function toInt56(int256 value) internal pure returns (int56 downcasted) {
        downcasted = int56(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(56, value);
        }
    }

    /**
     * @dev Returns the downcasted int48 from int256, reverting on
     * overflow (when the input is less than smallest int48 or
     * greater than largest int48).
     *
     * Counterpart to Solidity's `int48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     */
    function toInt48(int256 value) internal pure returns (int48 downcasted) {
        downcasted = int48(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(48, value);
        }
    }

    /**
     * @dev Returns the downcasted int40 from int256, reverting on
     * overflow (when the input is less than smallest int40 or
     * greater than largest int40).
     *
     * Counterpart to Solidity's `int40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     */
    function toInt40(int256 value) internal pure returns (int40 downcasted) {
        downcasted = int40(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(40, value);
        }
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toInt32(int256 value) internal pure returns (int32 downcasted) {
        downcasted = int32(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(32, value);
        }
    }

    /**
     * @dev Returns the downcasted int24 from int256, reverting on
     * overflow (when the input is less than smallest int24 or
     * greater than largest int24).
     *
     * Counterpart to Solidity's `int24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     */
    function toInt24(int256 value) internal pure returns (int24 downcasted) {
        downcasted = int24(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(24, value);
        }
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toInt16(int256 value) internal pure returns (int16 downcasted) {
        downcasted = int16(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(16, value);
        }
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     */
    function toInt8(int256 value) internal pure returns (int8 downcasted) {
        downcasted = int8(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(8, value);
        }
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        if (value > uint256(type(int256).max)) {
            revert SafeCastOverflowedUintToInt(value);
        }
        return int256(value);
    }

    /**
     * @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump.
     */
    function toUint(bool b) internal pure returns (uint256 u) {
        assembly ("memory-safe") {
            u := iszero(iszero(b))
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @title Errors library
 * @author Aave
 * @notice Defines the error messages emitted by the different contracts of the Aave protocol
 */
library Errors {
  error CallerNotPoolAdmin(); // 'The caller of the function is not a pool admin'
  error CallerNotPoolOrEmergencyAdmin(); // 'The caller of the function is not a pool or emergency admin'
  error CallerNotRiskOrPoolAdmin(); // 'The caller of the function is not a risk or pool admin'
  error CallerNotAssetListingOrPoolAdmin(); // 'The caller of the function is not an asset listing or pool admin'
  error AddressesProviderNotRegistered(); // 'Pool addresses provider is not registered'
  error InvalidAddressesProviderId(); // 'Invalid id for the pool addresses provider'
  error NotContract(); // 'Address is not a contract'
  error CallerNotPoolConfigurator(); // 'The caller of the function is not the pool configurator'
  error CallerNotAToken(); // 'The caller of the function is not an AToken'
  error InvalidAddressesProvider(); // 'The address of the pool addresses provider is invalid'
  error InvalidFlashloanExecutorReturn(); // 'Invalid return value of the flashloan executor function'
  error ReserveAlreadyAdded(); // 'Reserve has already been added to reserve list'
  error NoMoreReservesAllowed(); // 'Maximum amount of reserves in the pool reached'
  error EModeCategoryReserved(); // 'Zero eMode category is reserved for volatile heterogeneous assets'
  error ReserveLiquidityNotZero(); // 'The liquidity of the reserve needs to be 0'
  error FlashloanPremiumInvalid(); // 'Invalid flashloan premium'
  error InvalidReserveParams(); // 'Invalid risk parameters for the reserve'
  error InvalidEmodeCategoryParams(); // 'Invalid risk parameters for the eMode category'
  error CallerMustBePool(); // 'The caller of this function must be a pool'
  error InvalidMintAmount(); // 'Invalid amount to mint'
  error InvalidBurnAmount(); // 'Invalid amount to burn'
  error InvalidAmount(); // 'Amount must be greater than 0'
  error ReserveInactive(); // 'Action requires an active reserve'
  error ReserveFrozen(); // 'Action cannot be performed because the reserve is frozen'
  error ReservePaused(); // 'Action cannot be performed because the reserve is paused'
  error BorrowingNotEnabled(); // 'Borrowing is not enabled'
  error NotEnoughAvailableUserBalance(); // 'User cannot withdraw more than the available balance'
  error InvalidInterestRateModeSelected(); // 'Invalid interest rate mode selected'
  error HealthFactorLowerThanLiquidationThreshold(); // 'Health factor is below the liquidation threshold'
  error CollateralCannotCoverNewBorrow(); // 'There is not enough collateral to cover a new borrow'
  error NoDebtOfSelectedType(); // 'For repayment of a specific type of debt, the user needs to have debt that type'
  error NoExplicitAmountToRepayOnBehalf(); // 'To repay on behalf of a user an explicit amount to repay is needed'
  error UnderlyingBalanceZero(); // 'The underlying balance needs to be greater than 0'
  error HealthFactorNotBelowThreshold(); // 'Health factor is not below the threshold'
  error CollateralCannotBeLiquidated(); // 'The collateral chosen cannot be liquidated'
  error SpecifiedCurrencyNotBorrowedByUser(); // 'User did not borrow the specified currency'
  error InconsistentFlashloanParams(); // 'Inconsistent flashloan parameters'
  error BorrowCapExceeded(); // 'Borrow cap is exceeded'
  error SupplyCapExceeded(); // 'Supply cap is exceeded'
  error DebtCeilingExceeded(); // 'Debt ceiling is exceeded'
  error UnderlyingClaimableRightsNotZero(); // 'Claimable rights over underlying not zero (aToken supply or accruedToTreasury)'
  error VariableDebtSupplyNotZero(); // 'Variable debt supply is not zero'
  error LtvValidationFailed(); // 'Ltv validation failed'
  error InconsistentEModeCategory(); // 'Inconsistent eMode category'
  error PriceOracleSentinelCheckFailed(); // 'Price oracle sentinel validation failed'
  error AssetNotBorrowableInIsolation(); // 'Asset is not borrowable in isolation mode'
  error ReserveAlreadyInitialized(); // 'Reserve has already been initialized'
  error UserInIsolationModeOrLtvZero(); // 'User is in isolation mode or ltv is zero'
  error InvalidLtv(); // 'Invalid ltv parameter for the reserve'
  error InvalidLiquidationThreshold(); // 'Invalid liquidity threshold parameter for the reserve'
  error InvalidLiquidationBonus(); // 'Invalid liquidity bonus parameter for the reserve'
  error InvalidDecimals(); // 'Invalid decimals parameter of the underlying asset of the reserve'
  error InvalidReserveFactor(); // 'Invalid reserve factor parameter for the reserve'
  error InvalidBorrowCap(); // 'Invalid borrow cap for the reserve'
  error InvalidSupplyCap(); // 'Invalid supply cap for the reserve'
  error InvalidLiquidationProtocolFee(); // 'Invalid liquidation protocol fee for the reserve'
  error InvalidDebtCeiling(); // 'Invalid debt ceiling for the reserve'
  error InvalidReserveIndex(); // 'Invalid reserve index'
  error AclAdminCannotBeZero(); // 'ACL admin cannot be set to the zero address'
  error InconsistentParamsLength(); // 'Array parameters that should be equal length are not'
  error ZeroAddressNotValid(); // 'Zero address not valid'
  error InvalidExpiration(); // 'Invalid expiration'
  error InvalidSignature(); // 'Invalid signature'
  error OperationNotSupported(); // 'Operation not supported'
  error DebtCeilingNotZero(); // 'Debt ceiling is not zero'
  error AssetNotListed(); // 'Asset is not listed'
  error InvalidOptimalUsageRatio(); // 'Invalid optimal usage ratio'
  error UnderlyingCannotBeRescued(); // 'The underlying asset cannot be rescued'
  error AddressesProviderAlreadyAdded(); // 'Reserve has already been added to reserve list'
  error PoolAddressesDoNotMatch(); // 'The token implementation pool address and the pool address provided by the initializing pool do not match'
  error SiloedBorrowingViolation(); // 'User is trying to borrow multiple assets including a siloed one'
  error ReserveDebtNotZero(); // the total debt of the reserve needs to be 0
  error FlashloanDisabled(); // FlashLoaning for this asset is disabled
  error InvalidMaxRate(); // The expect maximum borrow rate is invalid
  error WithdrawToAToken(); // Withdrawing to the aToken is not allowed
  error SupplyToAToken(); // Supplying to the aToken is not allowed
  error Slope2MustBeGteSlope1(); // Variable interest rate slope 2 can not be lower than slope 1
  error CallerNotRiskOrPoolOrEmergencyAdmin(); // 'The caller of the function is not a risk, pool or emergency admin'
  error LiquidationGraceSentinelCheckFailed(); // 'Liquidation grace sentinel validation failed'
  error InvalidGracePeriod(); // Grace period above a valid range
  error InvalidFreezeState(); // Reserve is already in the passed freeze state
  error NotBorrowableInEMode(); // Asset not borrowable in eMode
  error CallerNotUmbrella(); // The caller of the function is not the umbrella contract
  error ReserveNotInDeficit(); // The reserve is not in deficit
  error MustNotLeaveDust(); // Below a certain threshold liquidators need to take the full position
  error UserCannotHaveDebt(); // Thrown when a user tries to interact with a method that requires a position without debt
  error SelfLiquidation(); // Thrown when a user tries to liquidate themselves
  error CallerNotPositionManager(); // Thrown when the caller has not been enabled as a position manager of the on-behalf-of user
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IPoolAddressesProvider} from './IPoolAddressesProvider.sol';
import {DataTypes} from '../protocol/libraries/types/DataTypes.sol';

/**
 * @title IPool
 * @author Aave
 * @notice Defines the basic interface for an Aave Pool.
 */
interface IPool {
  /**
   * @dev Emitted on supply()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address initiating the supply
   * @param onBehalfOf The beneficiary of the supply, receiving the aTokens
   * @param amount The amount supplied
   * @param referralCode The referral code used
   */
  event Supply(
    address indexed reserve,
    address user,
    address indexed onBehalfOf,
    uint256 amount,
    uint16 indexed referralCode
  );

  /**
   * @dev Emitted on withdraw()
   * @param reserve The address of the underlying asset being withdrawn
   * @param user The address initiating the withdrawal, owner of aTokens
   * @param to The address that will receive the underlying
   * @param amount The amount to be withdrawn
   */
  event Withdraw(address indexed reserve, address indexed user, address indexed to, uint256 amount);

  /**
   * @dev Emitted on borrow() and flashLoan() when debt needs to be opened
   * @param reserve The address of the underlying asset being borrowed
   * @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just
   * initiator of the transaction on flashLoan()
   * @param onBehalfOf The address that will be getting the debt
   * @param amount The amount borrowed out
   * @param interestRateMode The rate mode: 2 for Variable, 1 is deprecated (changed on v3.2.0)
   * @param borrowRate The numeric rate at which the user has borrowed, expressed in ray
   * @param referralCode The referral code used
   */
  event Borrow(
    address indexed reserve,
    address user,
    address indexed onBehalfOf,
    uint256 amount,
    DataTypes.InterestRateMode interestRateMode,
    uint256 borrowRate,
    uint16 indexed referralCode
  );

  /**
   * @dev Emitted on repay()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The beneficiary of the repayment, getting his debt reduced
   * @param repayer The address of the user initiating the repay(), providing the funds
   * @param amount The amount repaid
   * @param useATokens True if the repayment is done using aTokens, `false` if done with underlying asset directly
   */
  event Repay(
    address indexed reserve,
    address indexed user,
    address indexed repayer,
    uint256 amount,
    bool useATokens
  );

  /**
   * @dev Emitted on borrow(), repay() and liquidationCall() when using isolated assets
   * @param asset The address of the underlying asset of the reserve
   * @param totalDebt The total isolation mode debt for the reserve
   */
  event IsolationModeTotalDebtUpdated(address indexed asset, uint256 totalDebt);

  /**
   * @dev Emitted when the user selects a certain asset category for eMode
   * @param user The address of the user
   * @param categoryId The category id
   */
  event UserEModeSet(address indexed user, uint8 categoryId);

  /**
   * @dev Emitted on setUserUseReserveAsCollateral()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user enabling the usage as collateral
   */
  event ReserveUsedAsCollateralEnabled(address indexed reserve, address indexed user);

  /**
   * @dev Emitted on setUserUseReserveAsCollateral()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user enabling the usage as collateral
   */
  event ReserveUsedAsCollateralDisabled(address indexed reserve, address indexed user);

  /**
   * @dev Emitted on flashLoan()
   * @param target The address of the flash loan receiver contract
   * @param initiator The address initiating the flash loan
   * @param asset The address of the asset being flash borrowed
   * @param amount The amount flash borrowed
   * @param interestRateMode The flashloan mode: 0 for regular flashloan,
   *        1 for Stable (Deprecated on v3.2.0), 2 for Variable
   * @param premium The fee flash borrowed
   * @param referralCode The referral code used
   */
  event FlashLoan(
    address indexed target,
    address initiator,
    address indexed asset,
    uint256 amount,
    DataTypes.InterestRateMode interestRateMode,
    uint256 premium,
    uint16 indexed referralCode
  );

  /**
   * @dev Emitted when a borrower is liquidated.
   * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
   * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
   * @param user The address of the borrower getting liquidated
   * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
   * @param liquidatedCollateralAmount The amount of collateral received by the liquidator
   * @param liquidator The address of the liquidator
   * @param receiveAToken True if the liquidators wants to receive the collateral aTokens, `false` if he wants
   * to receive the underlying collateral asset directly
   */
  event LiquidationCall(
    address indexed collateralAsset,
    address indexed debtAsset,
    address indexed user,
    uint256 debtToCover,
    uint256 liquidatedCollateralAmount,
    address liquidator,
    bool receiveAToken
  );

  /**
   * @dev Emitted when the state of a reserve is updated.
   * @param reserve The address of the underlying asset of the reserve
   * @param liquidityRate The next liquidity rate
   * @param stableBorrowRate The next stable borrow rate @note deprecated on v3.2.0
   * @param variableBorrowRate The next variable borrow rate
   * @param liquidityIndex The next liquidity index
   * @param variableBorrowIndex The next variable borrow index
   */
  event ReserveDataUpdated(
    address indexed reserve,
    uint256 liquidityRate,
    uint256 stableBorrowRate,
    uint256 variableBorrowRate,
    uint256 liquidityIndex,
    uint256 variableBorrowIndex
  );

  /**
   * @dev Emitted when the deficit of a reserve is covered.
   * @param reserve The address of the underlying asset of the reserve
   * @param caller The caller that triggered the DeficitCovered event
   * @param amountCovered The amount of deficit covered
   */
  event DeficitCovered(address indexed reserve, address caller, uint256 amountCovered);

  /**
   * @dev Emitted when the protocol treasury receives minted aTokens from the accrued interest.
   * @param reserve The address of the reserve
   * @param amountMinted The amount minted to the treasury
   */
  event MintedToTreasury(address indexed reserve, uint256 amountMinted);

  /**
   * @dev Emitted when deficit is realized on a liquidation.
   * @param user The user address where the bad debt will be burned
   * @param debtAsset The address of the underlying borrowed asset to be burned
   * @param amountCreated The amount of deficit created
   */
  event DeficitCreated(address indexed user, address indexed debtAsset, uint256 amountCreated);

  /**
   * @dev Emitted when a position manager is approved by the user.
   * @param user The user address
   * @param positionManager The address of the position manager
   */
  event PositionManagerApproved(address indexed user, address indexed positionManager);

  /**
   * @dev Emitted when a position manager is revoked by the user.
   * @param user The user address
   * @param positionManager The address of the position manager
   */
  event PositionManagerRevoked(address indexed user, address indexed positionManager);

  /**
   * @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
   * - E.g. User supplies 100 USDC and gets in return 100 aUSDC
   * @param asset The address of the underlying asset to supply
   * @param amount The amount to be supplied
   * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
   *   wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
   *   is a different wallet
   * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   */
  function supply(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external;

  /**
   * @notice Supply with transfer approval of asset to be supplied done via permit function
   * see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
   * @param asset The address of the underlying asset to supply
   * @param amount The amount to be supplied
   * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
   *   wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
   *   is a different wallet
   * @param deadline The deadline timestamp that the permit is valid
   * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   * @param permitV The V parameter of ERC712 permit sig
   * @param permitR The R parameter of ERC712 permit sig
   * @param permitS The S parameter of ERC712 permit sig
   */
  function supplyWithPermit(
    address asset,
    uint256 amount,
    address onBehalfOf,
    uint16 referralCode,
    uint256 deadline,
    uint8 permitV,
    bytes32 permitR,
    bytes32 permitS
  ) external;

  /**
   * @notice Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned
   * E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC
   * @param asset The address of the underlying asset to withdraw
   * @param amount The underlying amount to be withdrawn
   *   - Send the value type(uint256).max in order to withdraw the whole aToken balance
   * @param to The address that will receive the underlying, same as msg.sender if the user
   *   wants to receive it on his own wallet, or a different address if the beneficiary is a
   *   different wallet
   * @return The final amount withdrawn
   */
  function withdraw(address asset, uint256 amount, address to) external returns (uint256);

  /**
   * @notice Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
   * already supplied enough collateral, or he was given enough allowance by a credit delegator on the VariableDebtToken
   * - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet
   *   and 100 variable debt tokens
   * @param asset The address of the underlying asset to borrow
   * @param amount The amount to be borrowed
   * @param interestRateMode 2 for Variable, 1 is deprecated on v3.2.0
   * @param referralCode The code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   * @param onBehalfOf The address of the user who will receive the debt. Should be the address of the borrower itself
   * calling the function if he wants to borrow against his own collateral, or the address of the credit delegator
   * if he has been given credit delegation allowance
   */
  function borrow(
    address asset,
    uint256 amount,
    uint256 interestRateMode,
    uint16 referralCode,
    address onBehalfOf
  ) external;

  /**
   * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
   * - E.g. User repays 100 USDC, burning 100 variable debt tokens of the `onBehalfOf` address
   * @param asset The address of the borrowed underlying asset previously borrowed
   * @param amount The amount to repay
   * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
   * @param interestRateMode 2 for Variable, 1 is deprecated on v3.2.0
   * @param onBehalfOf The address of the user who will get his debt reduced/removed. Should be the address of the
   * user calling the function if he wants to reduce/remove his own debt, or the address of any other
   * other borrower whose debt should be removed
   * @return The final amount repaid
   */
  function repay(
    address asset,
    uint256 amount,
    uint256 interestRateMode,
    address onBehalfOf
  ) external returns (uint256);

  /**
   * @notice Repay with transfer approval of asset to be repaid done via permit function
   * see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
   * @param asset The address of the borrowed underlying asset previously borrowed
   * @param amount The amount to repay
   * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
   * @param interestRateMode 2 for Variable, 1 is deprecated on v3.2.0
   * @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the
   * user calling the function if he wants to reduce/remove his own debt, or the address of any other
   * other borrower whose debt should be removed
   * @param deadline The deadline timestamp that the permit is valid
   * @param permitV The V parameter of ERC712 permit sig
   * @param permitR The R parameter of ERC712 permit sig
   * @param permitS The S parameter of ERC712 permit sig
   * @return The final amount repaid
   */
  function repayWithPermit(
    address asset,
    uint256 amount,
    uint256 interestRateMode,
    address onBehalfOf,
    uint256 deadline,
    uint8 permitV,
    bytes32 permitR,
    bytes32 permitS
  ) external returns (uint256);

  /**
   * @notice Repays a borrowed `amount` on a specific reserve using the reserve aTokens, burning the
   * equivalent debt tokens
   * - E.g. User repays 100 USDC using 100 aUSDC, burning 100 variable debt tokens
   * @dev  Passing uint256.max as amount will clean up any residual aToken dust balance, if the user aToken
   * balance is not enough to cover the whole debt
   * @param asset The address of the borrowed underlying asset previously borrowed
   * @param amount The amount to repay
   * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
   * @param interestRateMode DEPRECATED in v3.2.0
   * @return The final amount repaid
   */
  function repayWithATokens(
    address asset,
    uint256 amount,
    uint256 interestRateMode
  ) external returns (uint256);

  /**
   * @notice Allows suppliers to enable/disable a specific supplied asset as collateral
   * @param asset The address of the underlying asset supplied
   * @param useAsCollateral True if the user wants to use the supply as collateral, false otherwise
   */
  function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external;

  /**
   * @notice Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1
   * - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives
   *   a proportionally amount of the `collateralAsset` plus a bonus to cover market risk
   * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
   * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
   * @param borrower The address of the borrower getting liquidated
   * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
   * @param receiveAToken True if the liquidators wants to receive the collateral aTokens, `false` if he wants
   * to receive the underlying collateral asset directly
   */
  function liquidationCall(
    address collateralAsset,
    address debtAsset,
    address borrower,
    uint256 debtToCover,
    bool receiveAToken
  ) external;

  /**
   * @notice Allows smartcontracts to access the liquidity of the pool within one transaction,
   * as long as the amount taken plus a fee is returned.
   * @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept
   * into consideration. For further details please visit https://docs.aave.com/developers/
   * @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanReceiver interface
   * @param assets The addresses of the assets being flash-borrowed
   * @param amounts The amounts of the assets being flash-borrowed
   * @param interestRateModes Types of the debt to open if the flash loan is not returned:
   *   0 -> Don't open any debt, just revert if funds can't be transferred from the receiver
   *   1 -> Deprecated on v3.2.0
   *   2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
   * @param onBehalfOf The address  that will receive the debt in the case of using 2 on `modes`
   * @param params Variadic packed params to pass to the receiver as extra information
   * @param referralCode The code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   */
  function flashLoan(
    address receiverAddress,
    address[] calldata assets,
    uint256[] calldata amounts,
    uint256[] calldata interestRateModes,
    address onBehalfOf,
    bytes calldata params,
    uint16 referralCode
  ) external;

  /**
   * @notice Allows smartcontracts to access the liquidity of the pool within one transaction,
   * as long as the amount taken plus a fee is returned.
   * @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept
   * into consideration. For further details please visit https://docs.aave.com/developers/
   * @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanSimpleReceiver interface
   * @param asset The address of the asset being flash-borrowed
   * @param amount The amount of the asset being flash-borrowed
   * @param params Variadic packed params to pass to the receiver as extra information
   * @param referralCode The code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   */
  function flashLoanSimple(
    address receiverAddress,
    address asset,
    uint256 amount,
    bytes calldata params,
    uint16 referralCode
  ) external;

  /**
   * @notice Returns the user account data across all the reserves
   * @param user The address of the user
   * @return totalCollateralBase The total collateral of the user in the base currency used by the price feed
   * @return totalDebtBase The total debt of the user in the base currency used by the price feed
   * @return availableBorrowsBase The borrowing power left of the user in the base currency used by the price feed
   * @return currentLiquidationThreshold The liquidation threshold of the user
   * @return ltv The loan to value of The user
   * @return healthFactor The current health factor of the user
   */
  function getUserAccountData(
    address user
  )
    external
    view
    returns (
      uint256 totalCollateralBase,
      uint256 totalDebtBase,
      uint256 availableBorrowsBase,
      uint256 currentLiquidationThreshold,
      uint256 ltv,
      uint256 healthFactor
    );

  /**
   * @notice Initializes a reserve, activating it, assigning an aToken and debt tokens
   * @dev Only callable by the PoolConfigurator contract
   * @param asset The address of the underlying asset of the reserve
   * @param aTokenAddress The address of the aToken that will be assigned to the reserve
   * @param variableDebtAddress The address of the VariableDebtToken that will be assigned to the reserve
   */
  function initReserve(address asset, address aTokenAddress, address variableDebtAddress) external;

  /**
   * @notice Drop a reserve
   * @dev Only callable by the PoolConfigurator contract
   * @dev Does not reset eMode flags, which must be considered when reusing the same reserve id for a different reserve.
   * @param asset The address of the underlying asset of the reserve
   */
  function dropReserve(address asset) external;

  /**
   * @notice Accumulates interest to all indexes of the reserve
   * @dev Only callable by the PoolConfigurator contract
   * @dev To be used when required by the configurator, for example when updating interest rates strategy data
   * @param asset The address of the underlying asset of the reserve
   */
  function syncIndexesState(address asset) external;

  /**
   * @notice Updates interest rates on the reserve data
   * @dev Only callable by the PoolConfigurator contract
   * @dev To be used when required by the configurator, for example when updating interest rates strategy data
   * @param asset The address of the underlying asset of the reserve
   */
  function syncRatesState(address asset) external;

  /**
   * @notice Sets the configuration bitmap of the reserve as a whole
   * @dev Only callable by the PoolConfigurator contract
   * @param asset The address of the underlying asset of the reserve
   * @param configuration The new configuration bitmap
   */
  function setConfiguration(
    address asset,
    DataTypes.ReserveConfigurationMap calldata configuration
  ) external;

  /**
   * @notice Returns the configuration of the reserve
   * @param asset The address of the underlying asset of the reserve
   * @return The configuration of the reserve
   */
  function getConfiguration(
    address asset
  ) external view returns (DataTypes.ReserveConfigurationMap memory);

  /**
   * @notice Returns the configuration of the user across all the reserves
   * @param user The user address
   * @return The configuration of the user
   */
  function getUserConfiguration(
    address user
  ) external view returns (DataTypes.UserConfigurationMap memory);

  /**
   * @notice Returns the normalized income of the reserve
   * @param asset The address of the underlying asset of the reserve
   * @return The reserve's normalized income
   */
  function getReserveNormalizedIncome(address asset) external view returns (uint256);

  /**
   * @notice Returns the normalized variable debt per unit of asset
   * @dev WARNING: This function is intended to be used primarily by the protocol itself to get a
   * "dynamic" variable index based on time, current stored index and virtual rate at the current
   * moment (approx. a borrower would get if opening a position). This means that is always used in
   * combination with variable debt supply/balances.
   * If using this function externally, consider that is possible to have an increasing normalized
   * variable debt that is not equivalent to how the variable debt index would be updated in storage
   * (e.g. only updates with non-zero variable debt supply)
   * @param asset The address of the underlying asset of the reserve
   * @return The reserve normalized variable debt
   */
  function getReserveNormalizedVariableDebt(address asset) external view returns (uint256);

  /**
   * @notice Returns the state and configuration of the reserve
   * @param asset The address of the underlying asset of the reserve
   * @return The state and configuration data of the reserve
   */
  function getReserveData(address asset) external view returns (DataTypes.ReserveDataLegacy memory);

  /**
   * @notice Returns the virtual underlying balance of the reserve
   * @param asset The address of the underlying asset of the reserve
   * @return The reserve virtual underlying balance
   */
  function getVirtualUnderlyingBalance(address asset) external view returns (uint128);

  /**
   * @notice Validates and finalizes an aToken transfer
   * @dev Only callable by the overlying aToken of the `asset`
   * @param asset The address of the underlying asset of the aToken
   * @param from The user from which the aTokens are transferred
   * @param to The user receiving the aTokens
   * @param scaledAmount The scaled amount being transferred/withdrawn
   * @param scaledBalanceFromBefore The aToken scaled balance of the `from` user before the transfer
   * @param scaledBalanceToBefore The aToken scaled balance of the `to` user before the transfer
   */
  function finalizeTransfer(
    address asset,
    address from,
    address to,
    uint256 scaledAmount,
    uint256 scaledBalanceFromBefore,
    uint256 scaledBalanceToBefore
  ) external;

  /**
   * @notice Returns the list of the underlying assets of all the initialized reserves
   * @dev It does not include dropped reserves
   * @return The addresses of the underlying assets of the initialized reserves
   */
  function getReservesList() external view returns (address[] memory);

  /**
   * @notice Returns the number of initialized reserves
   * @dev It includes dropped reserves
   * @return The count
   */
  function getReservesCount() external view returns (uint256);

  /**
   * @notice Returns the address of the underlying asset of a reserve by the reserve id as stored in the DataTypes.ReserveData struct
   * @param id The id of the reserve as stored in the DataTypes.ReserveData struct
   * @return The address of the reserve associated with id
   */
  function getReserveAddressById(uint16 id) external view returns (address);

  /**
   * @notice Returns the PoolAddressesProvider connected to this contract
   * @return The address of the PoolAddressesProvider
   */
  function ADDRESSES_PROVIDER() external view returns (IPoolAddressesProvider);

  /**
   * @notice Returns the ReserveInterestRateStrategy connected to all the reserves
   * @return The address of the ReserveInterestRateStrategy contract
   */
  function RESERVE_INTEREST_RATE_STRATEGY() external view returns (address);

  /**
   * @notice Updates flash loan premium. All this premium is collected by the protocol treasury.
   * @dev The premium is calculated on the total borrowed amount
   * @dev Only callable by the PoolConfigurator contract
   * @param flashLoanPremium The flash loan premium, expressed in bps
   */
  function updateFlashloanPremium(uint128 flashLoanPremium) external;

  /**
   * @notice Configures a new or alters an existing collateral configuration of an eMode.
   * @dev In eMode, the protocol allows very high borrowing power to borrow assets of the same category.
   * The category 0 is reserved as it's the default for volatile assets
   * @param id The id of the category
   * @param config The configuration of the category
   */
  function configureEModeCategory(
    uint8 id,
    DataTypes.EModeCategoryBaseConfiguration memory config
  ) external;

  /**
   * @notice Replaces the current eMode collateralBitmap.
   * @param id The id of the category
   * @param collateralBitmap The collateralBitmap of the category
   */
  function configureEModeCategoryCollateralBitmap(uint8 id, uint128 collateralBitmap) external;

  /**
   * @notice Replaces the current eMode borrowableBitmap.
   * @param id The id of the category
   * @param borrowableBitmap The borrowableBitmap of the category
   */
  function configureEModeCategoryBorrowableBitmap(uint8 id, uint128 borrowableBitmap) external;

  /**
   * @notice Returns the data of an eMode category
   * @dev DEPRECATED use independent getters instead
   * @param id The id of the category
   * @return The configuration data of the category
   */
  function getEModeCategoryData(
    uint8 id
  ) external view returns (DataTypes.EModeCategoryLegacy memory);

  /**
   * @notice Returns the label of an eMode category
   * @param id The id of the category
   * @return The label of the category
   */
  function getEModeCategoryLabel(uint8 id) external view returns (string memory);

  /**
   * @notice Returns the collateral config of an eMode category
   * @param id The id of the category
   * @return The ltv,lt,lb of the category
   */
  function getEModeCategoryCollateralConfig(
    uint8 id
  ) external view returns (DataTypes.CollateralConfig memory);

  /**
   * @notice Returns the collateralBitmap of an eMode category
   * @param id The id of the category
   * @return The collateralBitmap of the category
   */
  function getEModeCategoryCollateralBitmap(uint8 id) external view returns (uint128);

  /**
   * @notice Returns the borrowableBitmap of an eMode category
   * @param id The id of the category
   * @return The borrowableBitmap of the category
   */
  function getEModeCategoryBorrowableBitmap(uint8 id) external view returns (uint128);

  /**
   * @notice Allows a user to use the protocol in eMode
   * @param categoryId The id of the category
   */
  function setUserEMode(uint8 categoryId) external;

  /**
   * @notice Returns the eMode the user is using
   * @param user The address of the user
   * @return The eMode id
   */
  function getUserEMode(address user) external view returns (uint256);

  /**
   * @notice Resets the isolation mode total debt of the given asset to zero
   * @dev It requires the given asset has zero debt ceiling
   * @param asset The address of the underlying asset to reset the isolationModeTotalDebt
   */
  function resetIsolationModeTotalDebt(address asset) external;

  /**
   * @notice Sets the liquidation grace period of the given asset
   * @dev To enable a liquidation grace period, a timestamp in the future should be set,
   *      To disable a liquidation grace period, any timestamp in the past works, like 0
   * @param asset The address of the underlying asset to set the liquidationGracePeriod
   * @param until Timestamp when the liquidation grace period will end
   **/
  function setLiquidationGracePeriod(address asset, uint40 until) external;

  /**
   * @notice Returns the liquidation grace period of the given asset
   * @param asset The address of the underlying asset
   * @return Timestamp when the liquidation grace period will end
   **/
  function getLiquidationGracePeriod(address asset) external view returns (uint40);

  /**
   * @notice Returns the total fee on flash loans.
   * @dev From v3.4 all flashloan fees will be send to the treasury.
   * @return The total fee on flashloans
   */
  function FLASHLOAN_PREMIUM_TOTAL() external view returns (uint128);

  /**
   * @notice Returns the part of the flashloan fees sent to protocol
   * @dev From v3.4 all flashloan fees will be send to the treasury and this value
   *      is always 100_00.
   * @return The flashloan fee sent to the protocol treasury
   */
  function FLASHLOAN_PREMIUM_TO_PROTOCOL() external view returns (uint128);

  /**
   * @notice Returns the maximum number of reserves supported to be listed in this Pool
   * @return The maximum number of reserves supported
   */
  function MAX_NUMBER_RESERVES() external view returns (uint16);

  /**
   * @notice Mints the assets accrued through the reserve factor to the treasury in the form of aTokens
   * @param assets The list of reserves for which the minting needs to be executed
   */
  function mintToTreasury(address[] calldata assets) external;

  /**
   * @notice Rescue and transfer tokens locked in this contract
   * @param token The address of the token
   * @param to The address of the recipient
   * @param amount The amount of token to transfer
   */
  function rescueTokens(address token, address to, uint256 amount) external;

  /**
   * @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
   * - E.g. User supplies 100 USDC and gets in return 100 aUSDC
   * @dev Deprecated: Use the `supply` function instead
   * @param asset The address of the underlying asset to supply
   * @param amount The amount to be supplied
   * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
   *   wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
   *   is a different wallet
   * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   */
  function deposit(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external;

  /**
   * @notice It covers the deficit of a specified reserve by burning the equivalent aToken `amount` for assets
   * @dev The deficit of a reserve can occur due to situations where borrowed assets are not repaid, leading to bad debt.
   * @param asset The address of the underlying asset to cover the deficit.
   * @param amount The amount to be covered, in aToken
   * @return The amount of tokens burned
   */
  function eliminateReserveDeficit(address asset, uint256 amount) external returns (uint256);

  /**
   * @notice Approves or disapproves a position manager. This position manager will be able
   * to call the `setUserUseReserveAsCollateralOnBehalfOf` and the
   * `setUserEModeOnBehalfOf` function on behalf of the user.
   * @param positionManager The address of the position manager
   * @param approve True if the position manager should be approved, false otherwise
   */
  function approvePositionManager(address positionManager, bool approve) external;

  /**
   * @notice Renounces a position manager role for a given user.
   * @param user The address of the user
   */
  function renouncePositionManagerRole(address user) external;

  /**
   * @notice Sets the use as collateral flag for the user on the specific reserve on behalf of the user.
   * @param asset The address of the underlying asset of the reserve
   * @param useAsCollateral True if the user wants to use the reserve as collateral, false otherwise
   * @param onBehalfOf The address of the user
   */
  function setUserUseReserveAsCollateralOnBehalfOf(
    address asset,
    bool useAsCollateral,
    address onBehalfOf
  ) external;

  /**
   * @notice Sets the eMode category for the user on the specific reserve on behalf of the user.
   * @param categoryId The id of the category
   * @param onBehalfOf The address of the user
   */
  function setUserEModeOnBehalfOf(uint8 categoryId, address onBehalfOf) external;

  /*
   * @notice Returns true if the `positionManager` address is approved to use the position manager role on behalf of the user.
   * @param user The address of the user
   * @param positionManager The address of the position manager
   * @return True if the user is approved to use the position manager, false otherwise
   */
  function isApprovedPositionManager(
    address user,
    address positionManager
  ) external view returns (bool);

  /**
   * @notice Returns the current deficit of a reserve.
   * @param asset The address of the underlying asset of the reserve
   * @return The current deficit of the reserve
   */
  function getReserveDeficit(address asset) external view returns (uint256);

  /**
   * @notice Returns the aToken address of a reserve.
   * @param asset The address of the underlying asset of the reserve
   * @return The address of the aToken
   */
  function getReserveAToken(address asset) external view returns (address);

  /**
   * @notice Returns the variableDebtToken address of a reserve.
   * @param asset The address of the underlying asset of the reserve
   * @return The address of the variableDebtToken
   */
  function getReserveVariableDebtToken(address asset) external view returns (address);

  /**
   * @notice Gets the address of the external FlashLoanLogic
   */
  function getFlashLoanLogic() external view returns (address);

  /**
   * @notice Gets the address of the external BorrowLogic
   */
  function getBorrowLogic() external view returns (address);

  /**
   * @notice Gets the address of the external EModeLogic
   */
  function getEModeLogic() external view returns (address);

  /**
   * @notice Gets the address of the external LiquidationLogic
   */
  function getLiquidationLogic() external view returns (address);

  /**
   * @notice Gets the address of the external PoolLogic
   */
  function getPoolLogic() external view returns (address);

  /**
   * @notice Gets the address of the external SupplyLogic
   */
  function getSupplyLogic() external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IAaveIncentivesController} from './IAaveIncentivesController.sol';
import {IPool} from './IPool.sol';

/**
 * @title IInitializableDebtToken
 * @author Aave
 * @notice Interface for the initialize function common between debt tokens
 */
interface IInitializableDebtToken {
  /**
   * @dev Emitted when a debt token is initialized
   * @param underlyingAsset The address of the underlying asset
   * @param pool The address of the associated pool
   * @param incentivesController The address of the incentives controller for this aToken
   * @param debtTokenDecimals The decimals of the debt token
   * @param debtTokenName The name of the debt token
   * @param debtTokenSymbol The symbol of the debt token
   * @param params A set of encoded parameters for additional initialization
   */
  event Initialized(
    address indexed underlyingAsset,
    address indexed pool,
    address incentivesController,
    uint8 debtTokenDecimals,
    string debtTokenName,
    string debtTokenSymbol,
    bytes params
  );

  /**
   * @notice Initializes the debt token.
   * @param pool The pool contract that is initializing this contract
   * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH)
   * @param debtTokenDecimals The decimals of the debtToken, same as the underlying asset's
   * @param debtTokenName The name of the token
   * @param debtTokenSymbol The symbol of the token
   * @param params A set of encoded parameters for additional initialization
   */
  function initialize(
    IPool pool,
    address underlyingAsset,
    uint8 debtTokenDecimals,
    string memory debtTokenName,
    string memory debtTokenSymbol,
    bytes calldata params
  ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IScaledBalanceToken} from './IScaledBalanceToken.sol';
import {IInitializableDebtToken} from './IInitializableDebtToken.sol';

/**
 * @title IVariableDebtToken
 * @author Aave
 * @notice Defines the basic interface for a variable debt token.
 */
interface IVariableDebtToken is IScaledBalanceToken, IInitializableDebtToken {
  /**
   * @notice Mints debt token to the `onBehalfOf` address.
   * @dev Passing both the unscaled and scaled amounts enhances precision. The `scaledAmount` is used for precise balance updates,
   * while the `amount` is used for allowance checks, preventing cumulative rounding errors.
   * @param user The address receiving the borrowed underlying, being the delegatee in case
   * of credit delegate, or same as `onBehalfOf` otherwise
   * @param onBehalfOf The address receiving the debt tokens
   * @param amount The unscaled amount of debt to be accounted for allowance
   * @param scaledAmount The scaled amount of debt tokens to mint
   * @param index The variable debt index of the reserve
   * @return The scaled total debt of the reserve
   */
  function mint(
    address user,
    address onBehalfOf,
    uint256 amount,
    uint256 scaledAmount,
    uint256 index
  ) external returns (uint256);

  /**
   * @notice Burns user variable debt.
   * @dev Passing the scaled amount allows for more precise calculations and avoids cumulative errors from repeated conversions.
   * @dev In some instances, a burn transaction will emit a mint event if the amount to burn is less than the interest that the user accrued.
   * @param from The address from which the debt will be burned
   * @param scaledAmount The scaled amount of debt getting burned
   * @param index The variable debt index of the reserve
   * @return True if the new balance is zero
   * @return The scaled total debt of the reserve
   */
  function burn(address from, uint256 scaledAmount, uint256 index) external returns (bool, uint256);

  /**
   * @notice Returns the address of the underlying asset of this debtToken (E.g. WETH for variableDebtWETH)
   * @return The address of the underlying asset
   */
  function UNDERLYING_ASSET_ADDRESS() external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

/**
 * @title EIP712Base
 * @author Aave
 * @notice Base contract implementation of EIP712.
 */
abstract contract EIP712Base {
  bytes public constant EIP712_REVISION = bytes('1');
  bytes32 internal constant EIP712_DOMAIN =
    keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)');

  // Map of address nonces (address => nonce)
  mapping(address => uint256) internal _nonces;

  bytes32 internal _domainSeparator;
  uint256 internal immutable _chainId;

  /**
   * @dev Constructor.
   */
  constructor() {
    _chainId = block.chainid;
  }

  /**
   * @notice Get the domain separator for the token
   * @dev Return cached value if chainId matches cache, otherwise recomputes separator
   * @return The domain separator of the token at current chain
   */
  function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
    if (block.chainid == _chainId) {
      return _domainSeparator;
    }
    return _calculateDomainSeparator();
  }

  /**
   * @notice Returns the nonce value for address specified as parameter
   * @param owner The address for which the nonce is being returned
   * @return The nonce value for the input address`
   */
  function nonces(address owner) public view virtual returns (uint256) {
    return _nonces[owner];
  }

  /**
   * @notice Compute the current domain separator
   * @return The domain separator for the token
   */
  function _calculateDomainSeparator() internal view returns (bytes32) {
    return
      keccak256(
        abi.encode(
          EIP712_DOMAIN,
          keccak256(bytes(_EIP712BaseId())),
          keccak256(EIP712_REVISION),
          block.chainid,
          address(this)
        )
      );
  }

  /**
   * @notice Returns the user readable name of signing domain (e.g. token name)
   * @return The name of the signing domain
   */
  function _EIP712BaseId() internal view virtual returns (string memory);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import {ECDSA} from 'openzeppelin-contracts/contracts/utils/cryptography/ECDSA.sol';

import {Context} from '../../../dependencies/openzeppelin/contracts/Context.sol';
import {Errors} from '../../libraries/helpers/Errors.sol';
import {VersionedInitializable} from '../../../misc/aave-upgradeability/VersionedInitializable.sol';
import {ICreditDelegationToken} from '../../../interfaces/ICreditDelegationToken.sol';
import {EIP712Base} from './EIP712Base.sol';

/**
 * @title DebtTokenBase
 * @author Aave
 * @notice Base contract for different types of debt tokens, like VariableDebtToken
 */
abstract contract DebtTokenBase is
  VersionedInitializable,
  EIP712Base,
  Context,
  ICreditDelegationToken
{
  // Map of borrow allowances (delegator => delegatee => borrowAllowanceAmount)
  mapping(address => mapping(address => uint256)) internal _borrowAllowances;

  // Credit Delegation Typehash
  bytes32 public constant DELEGATION_WITH_SIG_TYPEHASH =
    keccak256('DelegationWithSig(address delegatee,uint256 value,uint256 nonce,uint256 deadline)');

  address internal _underlyingAsset;

  /**
   * @dev Constructor.
   */
  constructor() EIP712Base() {
    // Intentionally left blank
  }

  /// @inheritdoc ICreditDelegationToken
  function approveDelegation(address delegatee, uint256 amount) external override {
    _approveDelegation(_msgSender(), delegatee, amount);
  }

  /// @inheritdoc ICreditDelegationToken
  function delegationWithSig(
    address delegator,
    address delegatee,
    uint256 value,
    uint256 deadline,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external {
    require(delegator != address(0), Errors.ZeroAddressNotValid());
    //solium-disable-next-line
    require(block.timestamp <= deadline, Errors.InvalidExpiration());
    uint256 currentValidNonce = _nonces[delegator];
    bytes32 digest = keccak256(
      abi.encodePacked(
        '\x19\x01',
        DOMAIN_SEPARATOR(),
        keccak256(
          abi.encode(DELEGATION_WITH_SIG_TYPEHASH, delegatee, value, currentValidNonce, deadline)
        )
      )
    );
    require(delegator == ECDSA.recover(digest, v, r, s), Errors.InvalidSignature());
    _nonces[delegator] = currentValidNonce + 1;
    _approveDelegation(delegator, delegatee, value);
  }

  /// @inheritdoc ICreditDelegationToken
  function borrowAllowance(
    address fromUser,
    address toUser
  ) external view override returns (uint256) {
    return _borrowAllowances[fromUser][toUser];
  }

  /**
   * @notice Updates the borrow allowance of a user on the specific debt token.
   * @param delegator The address delegating the borrowing power
   * @param delegatee The address receiving the delegated borrowing power
   * @param amount The allowance amount being delegated.
   */
  function _approveDelegation(address delegator, address delegatee, uint256 amount) internal {
    _borrowAllowances[delegator][delegatee] = amount;
    emit BorrowAllowanceDelegated(delegator, delegatee, _underlyingAsset, amount);
  }

  /**
   * @notice Decreases the borrow allowance of a user on the specific debt token.
   * @param delegator The address delegating the borrowing power
   * @param delegatee The address receiving the delegated borrowing power
   * @param amount The minimum amount to subtract from the current allowance
   * @param correctedAmount The maximum amount to subtract from the current allowance
   */
  function _decreaseBorrowAllowance(
    address delegator,
    address delegatee,
    uint256 amount,
    uint256 correctedAmount
  ) internal {
    uint256 oldBorrowAllowance = _borrowAllowances[delegator][delegatee];
    if (oldBorrowAllowance < amount) {
      revert InsufficientBorrowAllowance(delegatee, oldBorrowAllowance, amount);
    }

    uint256 consumption = oldBorrowAllowance >= correctedAmount
      ? correctedAmount
      : oldBorrowAllowance;
    uint256 newAllowance = oldBorrowAllowance - consumption;

    _borrowAllowances[delegator][delegatee] = newAllowance;

    emit BorrowAllowanceDelegated(delegator, delegatee, _underlyingAsset, newAllowance);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import {SafeCast} from 'openzeppelin-contracts/contracts/utils/math/SafeCast.sol';
import {Errors} from '../../libraries/helpers/Errors.sol';
import {WadRayMath} from '../../libraries/math/WadRayMath.sol';
import {IPool} from '../../../interfaces/IPool.sol';
import {IScaledBalanceToken} from '../../../interfaces/IScaledBalanceToken.sol';
import {MintableIncentivizedERC20} from './MintableIncentivizedERC20.sol';

/**
 * @title ScaledBalanceTokenBase
 * @author Aave
 * @notice Basic ERC20 implementation of scaled balance token
 */
abstract contract ScaledBalanceTokenBase is MintableIncentivizedERC20, IScaledBalanceToken {
  using WadRayMath for uint256;
  using SafeCast for uint256;

  /**
   * @dev Constructor.
   * @param pool The reference to the main Pool contract
   * @param name The name of the token
   * @param symbol The symbol of the token
   * @param decimals The number of decimals of the token
   * @param rewardsController The address of the rewards controller contract
   */
  constructor(
    IPool pool,
    string memory name,
    string memory symbol,
    uint8 decimals,
    address rewardsController
  ) MintableIncentivizedERC20(pool, name, symbol, decimals, rewardsController) {
    // Intentionally left blank
  }

  /// @inheritdoc IScaledBalanceToken
  function scaledBalanceOf(address user) external view override returns (uint256) {
    return super.balanceOf(user);
  }

  /// @inheritdoc IScaledBalanceToken
  function getScaledUserBalanceAndSupply(
    address user
  ) external view override returns (uint256, uint256) {
    return (super.balanceOf(user), super.totalSupply());
  }

  /// @inheritdoc IScaledBalanceToken
  function scaledTotalSupply() public view virtual override returns (uint256) {
    return super.totalSupply();
  }

  /// @inheritdoc IScaledBalanceToken
  function getPreviousIndex(address user) external view virtual override returns (uint256) {
    return _userState[user].additionalData;
  }

  /**
   * @notice Implements the basic logic to mint a scaled balance token.
   * @param caller The address performing the mint
   * @param onBehalfOf The address of the user that will receive the scaled tokens
   * @param amountScaled The amountScaled of tokens getting minted
   * @param index The next liquidity index of the reserve
   * @param getTokenBalance The function to get the balance of the token
   * @return `true` if the the previous balance of the user was 0
   */
  function _mintScaled(
    address caller,
    address onBehalfOf,
    uint256 amountScaled,
    uint256 index,
    function(uint256, uint256) internal pure returns (uint256) getTokenBalance
  ) internal returns (bool) {
    require(amountScaled != 0, Errors.InvalidMintAmount());

    uint256 scaledBalance = super.balanceOf(onBehalfOf);
    uint256 nextBalance = getTokenBalance(amountScaled + scaledBalance, index);
    uint256 previousBalance = getTokenBalance(scaledBalance, _userState[onBehalfOf].additionalData);
    uint256 balanceIncrease = getTokenBalance(scaledBalance, index) - previousBalance;

    _userState[onBehalfOf].additionalData = index.toUint128();

    _mint(onBehalfOf, amountScaled.toUint120());

    uint256 amountToMint = nextBalance - previousBalance;
    emit Transfer(address(0), onBehalfOf, amountToMint);
    emit Mint(caller, onBehalfOf, amountToMint, balanceIncrease, index);

    return (scaledBalance == 0);
  }

  /**
   * @notice Implements the basic logic to burn a scaled balance token.
   * @dev In some instances, a burn transaction will emit a mint event
   * if the amount to burn is less than the interest that the user accrued
   * @param user The user which debt is burnt
   * @param target The address that will receive the underlying, if any
   * @param amountScaled The scaled amount getting burned
   * @param index The variable debt index of the reserve
   * @param getTokenBalance The function to get the balance of the token
   * @return `true` if the the new balance of the user is 0
   */
  function _burnScaled(
    address user,
    address target,
    uint256 amountScaled,
    uint256 index,
    function(uint256, uint256) internal pure returns (uint256) getTokenBalance
  ) internal returns (bool) {
    require(amountScaled != 0, Errors.InvalidBurnAmount());

    uint256 scaledBalance = super.balanceOf(user);
    uint256 nextBalance = getTokenBalance(scaledBalance - amountScaled, index);
    uint256 previousBalance = getTokenBalance(scaledBalance, _userState[user].additionalData);
    uint256 balanceIncrease = getTokenBalance(scaledBalance, index) - previousBalance;

    _userState[user].additionalData = index.toUint128();

    _burn(user, amountScaled.toUint120());

    if (nextBalance > previousBalance) {
      uint256 amountToMint = nextBalance - previousBalance;
      emit Transfer(address(0), user, amountToMint);
      emit Mint(user, user, amountToMint, balanceIncrease, index);
    } else {
      uint256 amountToBurn = previousBalance - nextBalance;
      emit Transfer(user, address(0), amountToBurn);
      emit Burn(user, target, amountToBurn, balanceIncrease, index);
    }

    return scaledBalance - amountScaled == 0;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {WadRayMath} from '../../libraries/math/WadRayMath.sol';

/**
 * @title TokenMath
 * @author BGD Labs
 * @notice Provides utility functions for calculating scaled amounts and balances for aTokens and vTokens,
 *         applying specific rounding rules (floor/ceil) as per Aave v3.5's rounding improvements.
 *         The rounding behavior of the operations is in line with the ERC-4626 token standard.
 *         In practice, this means rounding in favor of the protocol.
 */
library TokenMath {
  using WadRayMath for uint256;

  /**
   * @notice Calculates the scaled amount of aTokens to mint when supplying underlying assets.
   *         The amount is rounded down to ensure the minted aTokens are less than or equal to the supplied amount.
   * @param amount The amount of underlying asset supplied.
   * @param liquidityIndex The current aToken liquidityIndex.
   * @return The scaled amount of aTokens to mint.
   */
  function getATokenMintScaledAmount(
    uint256 amount,
    uint256 liquidityIndex
  ) internal pure returns (uint256) {
    return amount.rayDivFloor(liquidityIndex);
  }

  /**
   * @notice Calculates the scaled amount of aTokens to burn when withdrawing underlying assets.
   *         The scaled amount is rounded up to ensure the user's aToken balance is sufficiently reduced.
   * @param amount The amount of underlying asset to withdraw.
   * @param liquidityIndex The current aToken liquidityIndex.
   * @return The scaled amount of aTokens to burn.
   */
  function getATokenBurnScaledAmount(
    uint256 amount,
    uint256 liquidityIndex
  ) internal pure returns (uint256) {
    return amount.rayDivCeil(liquidityIndex);
  }

  /**
   * @notice Calculates the scaled amount of aTokens to transfer.
   *         The scaled amount is rounded up to ensure the recipient receives at least the requested amount.
   * @param amount The amount of aTokens to transfer.
   * @param liquidityIndex The current aToken liquidityIndex.
   * @return The scaled amount of aTokens for transfer.
   */
  function getATokenTransferScaledAmount(
    uint256 amount,
    uint256 liquidityIndex
  ) internal pure returns (uint256) {
    return amount.rayDivCeil(liquidityIndex);
  }

  /**
   * @notice Calculates the actual aToken balance from a scaled balance and the current liquidityIndex.
   *         The balance is rounded down to prevent overaccounting.
   * @param scaledAmount The scaled aToken balance.
   * @param liquidityIndex The current aToken liquidityIndex.
   * @return The actual aToken balance.
   */
  function getATokenBalance(
    uint256 scaledAmount,
    uint256 liquidityIndex
  ) internal pure returns (uint256) {
    return scaledAmount.rayMulFloor(liquidityIndex);
  }

  /**
   * @notice Calculates the scaled amount of vTokens to mint when borrowing.
   *         The amount is rounded up to ensure the protocol never underaccounts the user's debt.
   * @param amount The amount of underlying asset borrowed.
   * @param variableBorrowIndex The current vToken variableBorrowIndex.
   * @return The scaled amount of vTokens to mint.
   */
  function getVTokenMintScaledAmount(
    uint256 amount,
    uint256 variableBorrowIndex
  ) internal pure returns (uint256) {
    return amount.rayDivCeil(variableBorrowIndex);
  }

  /**
   * @notice Calculates the scaled amount of vTokens to burn.
   *         The scaled amount is rounded down to prevent over-burning of vTokens.
   * @param amount The amount of underlying asset corresponding to the vTokens to burn.
   * @param variableBorrowIndex The current vToken variableBorrowIndex.
   * @return The scaled amount of vTokens to burn.
   */
  function getVTokenBurnScaledAmount(
    uint256 amount,
    uint256 variableBorrowIndex
  ) internal pure returns (uint256) {
    return amount.rayDivFloor(variableBorrowIndex);
  }

  /**
   * @notice Calculates the actual vToken balance (debt) from a scaled balance and the current variableBorrowIndex.
   *         The balance is rounded up to prevent underaccounting the user's debt.
   * @param scaledAmount The scaled vToken balance.
   * @param variableBorrowIndex The current vToken variableBorrowIndex.
   * @return The actual vToken balance (debt).
   */
  function getVTokenBalance(
    uint256 scaledAmount,
    uint256 variableBorrowIndex
  ) internal pure returns (uint256) {
    return scaledAmount.rayMulCeil(variableBorrowIndex);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @title IPoolAddressesProvider
 * @author Aave
 * @notice Defines the basic interface for a Pool Addresses Provider.
 */
interface IPoolAddressesProvider {
  /**
   * @dev Emitted when the market identifier is updated.
   * @param oldMarketId The old id of the market
   * @param newMarketId The new id of the market
   */
  event MarketIdSet(string indexed oldMarketId, string indexed newMarketId);

  /**
   * @dev Emitted when the pool is updated.
   * @param oldAddress The old address of the Pool
   * @param newAddress The new address of the Pool
   */
  event PoolUpdated(address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when the pool configurator is updated.
   * @param oldAddress The old address of the PoolConfigurator
   * @param newAddress The new address of the PoolConfigurator
   */
  event PoolConfiguratorUpdated(address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when the price oracle is updated.
   * @param oldAddress The old address of the PriceOracle
   * @param newAddress The new address of the PriceOracle
   */
  event PriceOracleUpdated(address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when the ACL manager is updated.
   * @param oldAddress The old address of the ACLManager
   * @param newAddress The new address of the ACLManager
   */
  event ACLManagerUpdated(address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when the ACL admin is updated.
   * @param oldAddress The old address of the ACLAdmin
   * @param newAddress The new address of the ACLAdmin
   */
  event ACLAdminUpdated(address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when the price oracle sentinel is updated.
   * @param oldAddress The old address of the PriceOracleSentinel
   * @param newAddress The new address of the PriceOracleSentinel
   */
  event PriceOracleSentinelUpdated(address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when the pool data provider is updated.
   * @param oldAddress The old address of the PoolDataProvider
   * @param newAddress The new address of the PoolDataProvider
   */
  event PoolDataProviderUpdated(address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when a new proxy is created.
   * @param id The identifier of the proxy
   * @param proxyAddress The address of the created proxy contract
   * @param implementationAddress The address of the implementation contract
   */
  event ProxyCreated(
    bytes32 indexed id,
    address indexed proxyAddress,
    address indexed implementationAddress
  );

  /**
   * @dev Emitted when a new non-proxied contract address is registered.
   * @param id The identifier of the contract
   * @param oldAddress The address of the old contract
   * @param newAddress The address of the new contract
   */
  event AddressSet(bytes32 indexed id, address indexed oldAddress, address indexed newAddress);

  /**
   * @dev Emitted when the implementation of the proxy registered with id is updated
   * @param id The identifier of the contract
   * @param proxyAddress The address of the proxy contract
   * @param oldImplementationAddress The address of the old implementation contract
   * @param newImplementationAddress The address of the new implementation contract
   */
  event AddressSetAsProxy(
    bytes32 indexed id,
    address indexed proxyAddress,
    address oldImplementationAddress,
    address indexed newImplementationAddress
  );

  /**
   * @notice Returns the id of the Aave market to which this contract points to.
   * @return The market id
   */
  function getMarketId() external view returns (string memory);

  /**
   * @notice Associates an id with a specific PoolAddressesProvider.
   * @dev This can be used to create an onchain registry of PoolAddressesProviders to
   * identify and validate multiple Aave markets.
   * @param newMarketId The market id
   */
  function setMarketId(string calldata newMarketId) external;

  /**
   * @notice Returns an address by its identifier.
   * @dev The returned address might be an EOA or a contract, potentially proxied
   * @dev It returns ZERO if there is no registered address with the given id
   * @param id The id
   * @return The address of the registered for the specified id
   */
  function getAddress(bytes32 id) external view returns (address);

  /**
   * @notice General function to update the implementation of a proxy registered with
   * certain `id`. If there is no proxy registered, it will instantiate one and
   * set as implementation the `newImplementationAddress`.
   * @dev IMPORTANT Use this function carefully, only for ids that don't have an explicit
   * setter function, in order to avoid unexpected consequences
   * @param id The id
   * @param newImplementationAddress The address of the new implementation
   */
  function setAddressAsProxy(bytes32 id, address newImplementationAddress) external;

  /**
   * @notice Sets an address for an id replacing the address saved in the addresses map.
   * @dev IMPORTANT Use this function carefully, as it will do a hard replacement
   * @param id The id
   * @param newAddress The address to set
   */
  function setAddress(bytes32 id, address newAddress) external;

  /**
   * @notice Returns the address of the Pool proxy.
   * @return The Pool proxy address
   */
  function getPool() external view returns (address);

  /**
   * @notice Updates the implementation of the Pool, or creates a proxy
   * setting the new `pool` implementation when the function is called for the first time.
   * @param newPoolImpl The new Pool implementation
   */
  function setPoolImpl(address newPoolImpl) external;

  /**
   * @notice Returns the address of the PoolConfigurator proxy.
   * @return The PoolConfigurator proxy address
   */
  function getPoolConfigurator() external view returns (address);

  /**
   * @notice Updates the implementation of the PoolConfigurator, or creates a proxy
   * setting the new `PoolConfigurator` implementation when the function is called for the first time.
   * @param newPoolConfiguratorImpl The new PoolConfigurator implementation
   */
  function setPoolConfiguratorImpl(address newPoolConfiguratorImpl) external;

  /**
   * @notice Returns the address of the price oracle.
   * @return The address of the PriceOracle
   */
  function getPriceOracle() external view returns (address);

  /**
   * @notice Updates the address of the price oracle.
   * @param newPriceOracle The address of the new PriceOracle
   */
  function setPriceOracle(address newPriceOracle) external;

  /**
   * @notice Returns the address of the ACL manager.
   * @return The address of the ACLManager
   */
  function getACLManager() external view returns (address);

  /**
   * @notice Updates the address of the ACL manager.
   * @param newAclManager The address of the new ACLManager
   */
  function setACLManager(address newAclManager) external;

  /**
   * @notice Returns the address of the ACL admin.
   * @return The address of the ACL admin
   */
  function getACLAdmin() external view returns (address);

  /**
   * @notice Updates the address of the ACL admin.
   * @param newAclAdmin The address of the new ACL admin
   */
  function setACLAdmin(address newAclAdmin) external;

  /**
   * @notice Returns the address of the price oracle sentinel.
   * @return The address of the PriceOracleSentinel
   */
  function getPriceOracleSentinel() external view returns (address);

  /**
   * @notice Updates the address of the price oracle sentinel.
   * @param newPriceOracleSentinel The address of the new PriceOracleSentinel
   */
  function setPriceOracleSentinel(address newPriceOracleSentinel) external;

  /**
   * @notice Returns the address of the data provider.
   * @return The address of the DataProvider
   */
  function getPoolDataProvider() external view returns (address);

  /**
   * @notice Updates the address of the data provider.
   * @param newDataProvider The address of the new DataProvider
   */
  function setPoolDataProvider(address newDataProvider) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

library DataTypes {
  /**
   * This exists specifically to maintain the `getReserveData()` interface, since the new, internal
   * `ReserveData` struct includes the reserve's `virtualUnderlyingBalance`.
   */
  struct ReserveDataLegacy {
    //stores the reserve configuration
    ReserveConfigurationMap configuration;
    //the liquidity index. Expressed in ray
    uint128 liquidityIndex;
    //the current supply rate. Expressed in ray
    uint128 currentLiquidityRate;
    //variable borrow index. Expressed in ray
    uint128 variableBorrowIndex;
    //the current variable borrow rate. Expressed in ray
    uint128 currentVariableBorrowRate;
    // DEPRECATED on v3.2.0
    uint128 currentStableBorrowRate;
    //timestamp of last update
    uint40 lastUpdateTimestamp;
    //the id of the reserve. Represents the position in the list of the active reserves
    uint16 id;
    //aToken address
    address aTokenAddress;
    // DEPRECATED on v3.2.0
    address stableDebtTokenAddress;
    //variableDebtToken address
    address variableDebtTokenAddress;
    // DEPRECATED on v3.4.0, should use the `RESERVE_INTEREST_RATE_STRATEGY` variable from the Pool contract
    address interestRateStrategyAddress;
    //the current treasury balance, scaled
    uint128 accruedToTreasury;
    // DEPRECATED on v3.4.0
    uint128 unbacked;
    //the outstanding debt borrowed against this asset in isolation mode
    uint128 isolationModeTotalDebt;
  }

  struct ReserveData {
    //stores the reserve configuration
    ReserveConfigurationMap configuration;
    //the liquidity index. Expressed in ray
    uint128 liquidityIndex;
    //the current supply rate. Expressed in ray
    uint128 currentLiquidityRate;
    //variable borrow index. Expressed in ray
    uint128 variableBorrowIndex;
    //the current variable borrow rate. Expressed in ray
    uint128 currentVariableBorrowRate;
    /// @notice reused `__deprecatedStableBorrowRate` storage from pre 3.2
    // the current accumulate deficit in underlying tokens
    uint128 deficit;
    //timestamp of last update
    uint40 lastUpdateTimestamp;
    //the id of the reserve. Represents the position in the list of the active reserves
    uint16 id;
    //timestamp until when liquidations are not allowed on the reserve, if set to past liquidations will be allowed
    uint40 liquidationGracePeriodUntil;
    //aToken address
    address aTokenAddress;
    // DEPRECATED on v3.2.0
    address __deprecatedStableDebtTokenAddress;
    //variableDebtToken address
    address variableDebtTokenAddress;
    // DEPRECATED on v3.4.0, should use the `RESERVE_INTEREST_RATE_STRATEGY` variable from the Pool contract
    address __deprecatedInterestRateStrategyAddress;
    //the current treasury balance, scaled
    uint128 accruedToTreasury;
    // In aave 3.3.0 this storage slot contained the `unbacked`
    uint128 virtualUnderlyingBalance;
    //the outstanding debt borrowed against this asset in isolation mode
    uint128 isolationModeTotalDebt;
    //the amount of underlying accounted for by the protocol
    // DEPRECATED on v3.4.0. Moved into the same slot as accruedToTreasury for optimized storage access.
    uint128 __deprecatedVirtualUnderlyingBalance;
  }

  struct ReserveConfigurationMap {
    //bit 0-15: LTV
    //bit 16-31: Liq. threshold
    //bit 32-47: Liq. bonus
    //bit 48-55: Decimals
    //bit 56: reserve is active
    //bit 57: reserve is frozen
    //bit 58: borrowing is enabled
    //bit 59: DEPRECATED: stable rate borrowing enabled
    //bit 60: asset is paused
    //bit 61: borrowing in isolation mode is enabled
    //bit 62: siloed borrowing enabled
    //bit 63: flashloaning enabled
    //bit 64-79: reserve factor
    //bit 80-115: borrow cap in whole tokens, borrowCap == 0 => no cap
    //bit 116-151: supply cap in whole tokens, supplyCap == 0 => no cap
    //bit 152-167: liquidation protocol fee
    //bit 168-175: DEPRECATED: eMode category
    //bit 176-211: DEPRECATED: unbacked mint cap
    //bit 212-251: debt ceiling for isolation mode with (ReserveConfiguration::DEBT_CEILING_DECIMALS) decimals
    //bit 252: DEPRECATED: virtual accounting is enabled for the reserve
    //bit 253-255 unused

    uint256 data;
  }

  struct UserConfigurationMap {
    /**
     * @dev Bitmap of the users collaterals and borrows. It is divided in pairs of bits, one pair per asset.
     * The first bit indicates if an asset is used as collateral by the user, the second whether an
     * asset is borrowed by the user.
     */
    uint256 data;
  }

  // DEPRECATED: kept for backwards compatibility, might be removed in a future version
  struct EModeCategoryLegacy {
    // each eMode category has a custom ltv and liquidation threshold
    uint16 ltv;
    uint16 liquidationThreshold;
    uint16 liquidationBonus;
    // DEPRECATED
    address priceSource;
    string label;
  }

  struct CollateralConfig {
    uint16 ltv;
    uint16 liquidationThreshold;
    uint16 liquidationBonus;
  }

  struct EModeCategoryBaseConfiguration {
    uint16 ltv;
    uint16 liquidationThreshold;
    uint16 liquidationBonus;
    string label;
  }

  struct EModeCategory {
    // each eMode category has a custom ltv and liquidation threshold
    uint16 ltv;
    uint16 liquidationThreshold;
    uint16 liquidationBonus;
    uint128 collateralBitmap;
    string label;
    uint128 borrowableBitmap;
  }

  enum InterestRateMode {
    NONE,
    __DEPRECATED,
    VARIABLE
  }

  struct ReserveCache {
    uint256 currScaledVariableDebt;
    uint256 nextScaledVariableDebt;
    uint256 currLiquidityIndex;
    uint256 nextLiquidityIndex;
    uint256 currVariableBorrowIndex;
    uint256 nextVariableBorrowIndex;
    uint256 currLiquidityRate;
    uint256 currVariableBorrowRate;
    uint256 reserveFactor;
    ReserveConfigurationMap reserveConfiguration;
    address aTokenAddress;
    address variableDebtTokenAddress;
    uint40 reserveLastUpdateTimestamp;
  }

  struct ExecuteLiquidationCallParams {
    address liquidator;
    uint256 debtToCover;
    address collateralAsset;
    address debtAsset;
    address borrower;
    bool receiveAToken;
    address priceOracle;
    uint8 borrowerEModeCategory;
    address priceOracleSentinel;
    address interestRateStrategyAddress;
  }

  struct ExecuteSupplyParams {
    address user;
    address asset;
    address interestRateStrategyAddress;
    uint256 amount;
    address onBehalfOf;
    uint16 referralCode;
  }

  struct ExecuteBorrowParams {
    address asset;
    address user;
    address onBehalfOf;
    address interestRateStrategyAddress;
    uint256 amount;
    InterestRateMode interestRateMode;
    uint16 referralCode;
    bool releaseUnderlying;
    address oracle;
    uint8 userEModeCategory;
    address priceOracleSentinel;
  }

  struct ExecuteRepayParams {
    address asset;
    address user;
    address interestRateStrategyAddress;
    uint256 amount;
    InterestRateMode interestRateMode;
    address onBehalfOf;
    bool useATokens;
    address oracle;
    uint8 userEModeCategory;
  }

  struct ExecuteWithdrawParams {
    address user;
    address asset;
    address interestRateStrategyAddress;
    uint256 amount;
    address to;
    address oracle;
    uint8 userEModeCategory;
  }

  struct ExecuteEliminateDeficitParams {
    address user;
    address asset;
    address interestRateStrategyAddress;
    uint256 amount;
  }

  struct FinalizeTransferParams {
    address asset;
    address from;
    address to;
    uint256 scaledAmount;
    uint256 scaledBalanceFromBefore;
    uint256 scaledBalanceToBefore;
    address oracle;
    uint8 fromEModeCategory;
  }

  struct FlashloanParams {
    address user;
    address receiverAddress;
    address[] assets;
    uint256[] amounts;
    uint256[] interestRateModes;
    address interestRateStrategyAddress;
    address onBehalfOf;
    bytes params;
    uint16 referralCode;
    uint256 flashLoanPremium;
    address addressesProvider;
    address pool;
    uint8 userEModeCategory;
    bool isAuthorizedFlashBorrower;
  }

  struct FlashloanSimpleParams {
    address user;
    address receiverAddress;
    address asset;
    address interestRateStrategyAddress;
    uint256 amount;
    bytes params;
    uint16 referralCode;
    uint256 flashLoanPremium;
  }

  struct FlashLoanRepaymentParams {
    address user;
    uint256 amount;
    uint256 totalPremium;
    address asset;
    address interestRateStrategyAddress;
    address receiverAddress;
    uint16 referralCode;
  }

  struct CalculateUserAccountDataParams {
    UserConfigurationMap userConfig;
    address user;
    address oracle;
    uint8 userEModeCategory;
  }

  struct ValidateBorrowParams {
    ReserveCache reserveCache;
    UserConfigurationMap userConfig;
    address asset;
    address userAddress;
    uint256 amountScaled;
    InterestRateMode interestRateMode;
    address oracle;
    uint8 userEModeCategory;
    address priceOracleSentinel;
  }

  struct ValidateLiquidationCallParams {
    ReserveCache debtReserveCache;
    uint256 totalDebt;
    uint256 healthFactor;
    address priceOracleSentinel;
    address borrower;
    address liquidator;
  }

  struct CalculateInterestRatesParams {
    uint256 unbacked;
    uint256 liquidityAdded;
    uint256 liquidityTaken;
    uint256 totalDebt;
    uint256 reserveFactor;
    address reserve;
    // @notice DEPRECATED in 3.4, but kept for backwards compatibility
    bool usingVirtualBalance;
    uint256 virtualUnderlyingBalance;
  }

  struct InitReserveParams {
    address asset;
    address aTokenAddress;
    address variableDebtAddress;
    uint16 reservesCount;
    uint16 maxNumberReserves;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @title IAaveIncentivesController
 * @author Aave
 * @notice Defines the basic interface for an Aave Incentives Controller.
 * @dev It only contains one single function, needed as a hook on aToken and debtToken transfers.
 */
interface IAaveIncentivesController {
  /**
   * @dev Called by the corresponding asset on transfer hook in order to update the rewards distribution.
   * @dev The units of `totalSupply` and `userBalance` should be the same.
   * @param user The address of the user whose asset balance has changed
   * @param totalSupply The total supply of the asset prior to user balance change
   * @param userBalance The previous user balance prior to balance change
   */
  function handleAction(address user, uint256 totalSupply, uint256 userBalance) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @title IScaledBalanceToken
 * @author Aave
 * @notice Defines the basic interface for a scaled-balance token.
 */
interface IScaledBalanceToken {
  /**
   * @dev Emitted after the mint action
   * @param caller The address performing the mint
   * @param onBehalfOf The address of the user that will receive the minted tokens
   * @param value The scaled-up amount being minted (based on user entered amount and balance increase from interest)
   * @param balanceIncrease The increase in scaled-up balance since the last action of 'onBehalfOf'
   * @param index The next liquidity index of the reserve
   */
  event Mint(
    address indexed caller,
    address indexed onBehalfOf,
    uint256 value,
    uint256 balanceIncrease,
    uint256 index
  );

  /**
   * @dev Emitted after the burn action
   * @dev If the burn function does not involve a transfer of the underlying asset, the target defaults to zero address
   * @param from The address from which the tokens will be burned
   * @param target The address that will receive the underlying, if any
   * @param value The scaled-up amount being burned (user entered amount - balance increase from interest)
   * @param balanceIncrease The increase in scaled-up balance since the last action of 'from'
   * @param index The next liquidity index of the reserve
   */
  event Burn(
    address indexed from,
    address indexed target,
    uint256 value,
    uint256 balanceIncrease,
    uint256 index
  );

  /**
   * @notice Returns the scaled balance of the user.
   * @dev The scaled balance is the sum of all the updated stored balance divided by the reserve's liquidity index
   * at the moment of the update
   * @param user The user whose balance is calculated
   * @return The scaled balance of the user
   */
  function scaledBalanceOf(address user) external view returns (uint256);

  /**
   * @notice Returns the scaled balance of the user and the scaled total supply.
   * @param user The address of the user
   * @return The scaled balance of the user
   * @return The scaled total supply
   */
  function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256);

  /**
   * @notice Returns the scaled total supply of the scaled balance token. Represents sum(debt/index)
   * @return The scaled total supply
   */
  function scaledTotalSupply() external view returns (uint256);

  /**
   * @notice Returns last index interest was accrued to the user's balance
   * @param user The address of the user
   * @return The last index interest was accrued to the user's balance, expressed in ray
   */
  function getPreviousIndex(address user) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.20;

/**
 * @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 ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS
    }

    /**
     * @dev The signature derives the `address(0)`.
     */
    error ECDSAInvalidSignature();

    /**
     * @dev The signature has an invalid length.
     */
    error ECDSAInvalidSignatureLength(uint256 length);

    /**
     * @dev The signature has an S value that is in the upper half order.
     */
    error ECDSAInvalidSignatureS(bytes32 s);

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not
     * return address(0) without also returning an error description. Errors are documented using an enum (error type)
     * and a bytes32 providing additional information about the error.
     *
     * If no error is returned, then the address can be used for verification purposes.
     *
     * The `ecrecover` EVM precompile 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 {MessageHashUtils-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]
     */
    function tryRecover(
        bytes32 hash,
        bytes memory signature
    ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
        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.
            assembly ("memory-safe") {
                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, bytes32(signature.length));
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM precompile 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 {MessageHashUtils-toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);
        _throwError(error, errorArg);
        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[ERC-2098 short signatures]
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
        unchecked {
            bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
            // We do not check for an overflow here since the shift operation results in 0 or 1.
            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.
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);
        _throwError(error, errorArg);
        return recovered;
    }

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

        // 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, bytes32(0));
        }

        return (signer, RecoverError.NoError, bytes32(0));
    }

    /**
     * @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, bytes32 errorArg) = tryRecover(hash, v, r, s);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.
     */
    function _throwError(RecoverError error, bytes32 errorArg) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert ECDSAInvalidSignature();
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert ECDSAInvalidSignatureLength(uint256(errorArg));
        } else if (error == RecoverError.InvalidSignatureS) {
            revert ECDSAInvalidSignatureS(errorArg);
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

/*
 * @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 GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
  function _msgSender() internal view virtual returns (address payable) {
    return payable(msg.sender);
  }

  function _msgData() internal view virtual returns (bytes memory) {
    this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
    return msg.data;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @title ICreditDelegationToken
 * @author Aave
 * @notice Defines the basic interface for a token supporting credit delegation.
 */
interface ICreditDelegationToken {
  /**
   * @dev Emitted on `approveDelegation` and `borrowAllowance
   * @param fromUser The address of the delegator
   * @param toUser The address of the delegatee
   * @param asset The address of the delegated asset
   * @param amount The amount being delegated
   */
  event BorrowAllowanceDelegated(
    address indexed fromUser,
    address indexed toUser,
    address indexed asset,
    uint256 amount
  );

  /**
   * @dev Indicates a failure with the `spender`’s `allowance`. Used in borrowing.
   * @param spender Address that may be allowed to operate on tokens without being their owner.
   * @param allowance Amount of tokens a `spender` is allowed to operate with.
   * @param needed Minimum amount required to perform a transfer.
   */
  error InsufficientBorrowAllowance(address spender, uint256 allowance, uint256 needed);

  /**
   * @notice Delegates borrowing power to a user on the specific debt token.
   * Delegation will still respect the liquidation constraints (even if delegated, a
   * delegatee cannot force a delegator HF to go below 1)
   * @param delegatee The address receiving the delegated borrowing power
   * @param amount The maximum amount being delegated.
   */
  function approveDelegation(address delegatee, uint256 amount) external;

  /**
   * @notice Returns the borrow allowance of the user
   * @param fromUser The user to giving allowance
   * @param toUser The user to give allowance to
   * @return The current allowance of `toUser`
   */
  function borrowAllowance(address fromUser, address toUser) external view returns (uint256);

  /**
   * @notice Delegates borrowing power to a user on the specific debt token via ERC712 signature
   * @param delegator The delegator of the credit
   * @param delegatee The delegatee that can use the credit
   * @param value The amount to be delegated
   * @param deadline The deadline timestamp, type(uint256).max for max deadline
   * @param v The V signature param
   * @param s The S signature param
   * @param r The R signature param
   */
  function delegationWithSig(
    address delegator,
    address delegatee,
    uint256 value,
    uint256 deadline,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external;
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

/**
 * @title WadRayMath library
 * @author Aave
 * @notice Provides functions to perform calculations with Wad and Ray units
 * @dev Provides mul and div function for wads (decimal numbers with 18 digits of precision) and rays (decimal numbers
 * with 27 digits of precision).
 * @dev Default operations round half up (if a value is >= .5, it will be rounded up, otherwise rounded down).
 * @dev For specific rounding behaviors, functions with `Floor` and `Ceil` suffixes or a `Rounding` parameter are available.
 */
library WadRayMath {
  enum Rounding {
    Floor,
    Ceil
  }

  // HALF_WAD and HALF_RAY expressed with extended notation as constant with operations are not supported in Yul assembly
  uint256 internal constant WAD = 1e18;
  uint256 internal constant HALF_WAD = 0.5e18;

  uint256 internal constant RAY = 1e27;
  uint256 internal constant HALF_RAY = 0.5e27;

  uint256 internal constant WAD_RAY_RATIO = 1e9;

  /**
   * @dev Multiplies two wad, rounding half up to the nearest wad
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Wad
   * @param b Wad
   * @return c = a*b, in wad
   */
  function wadMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // to avoid overflow, a <= (type(uint256).max - HALF_WAD) / b
    assembly {
      if iszero(or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_WAD), b))))) {
        revert(0, 0)
      }

      c := div(add(mul(a, b), HALF_WAD), WAD)
    }
  }

  /**
   * @dev Divides two wad, rounding half up to the nearest wad
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Wad
   * @param b Wad
   * @return c = a/b, in wad
   */
  function wadDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // to avoid overflow, a <= (type(uint256).max - halfB) / WAD
    assembly {
      if or(iszero(b), iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), WAD))))) {
        revert(0, 0)
      }

      c := div(add(mul(a, WAD), div(b, 2)), b)
    }
  }

  function rayMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    assembly {
      // to avoid overflow, a <= (type(uint256).max - HALF_RAY) / b
      if iszero(or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_RAY), b))))) {
        revert(0, 0)
      }
      c := div(add(mul(a, b), HALF_RAY), RAY)
    }
  }

  function rayMul(uint256 a, uint256 b, Rounding rounding) internal pure returns (uint256 c) {
    if (rounding == Rounding.Floor) return rayMulFloor(a, b);
    return rayMulCeil(a, b);
  }

  function rayMulFloor(uint256 a, uint256 b) internal pure returns (uint256 c) {
    assembly {
      // Overflow check: Ensure a * b does not exceed uint256 max
      if iszero(or(iszero(b), iszero(gt(a, div(not(0), b))))) {
        revert(0, 0)
      }

      c := div(mul(a, b), RAY)
    }
  }

  function rayMulCeil(uint256 a, uint256 b) internal pure returns (uint256 c) {
    assembly {
      // Overflow check: Ensure a * b does not exceed uint256 max
      if iszero(or(iszero(b), iszero(gt(a, div(not(0), b))))) {
        revert(0, 0)
      }

      let product := mul(a, b)
      c := add(div(product, RAY), iszero(iszero(mod(product, RAY))))
    }
  }

  /**
   * @notice Divides two ray, rounding half up to the nearest ray
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Ray
   * @param b Ray
   * @return c = a raydiv b
   */
  function rayDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
    assembly {
      // to avoid overflow, a <= (type(uint256).max - b / 2) / RAY
      if or(iszero(b), iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), RAY))))) {
        revert(0, 0)
      }
      c := div(add(mul(a, RAY), div(b, 2)), b)
    }
  }

  function rayDiv(uint256 a, uint256 b, Rounding rounding) internal pure returns (uint256 c) {
    if (rounding == Rounding.Floor) return rayDivFloor(a, b);
    return rayDivCeil(a, b);
  }

  function rayDivCeil(uint256 a, uint256 b) internal pure returns (uint256 c) {
    assembly {
      // Overflow check: Ensure a * RAY does not exceed uint256 max
      if or(iszero(b), iszero(iszero(gt(a, div(not(0), RAY))))) {
        revert(0, 0)
      }
      let scaled := mul(a, RAY)
      c := add(div(scaled, b), iszero(iszero(mod(scaled, b))))
    }
  }

  function rayDivFloor(uint256 a, uint256 b) internal pure returns (uint256 c) {
    assembly {
      // Overflow check: Ensure a * RAY does not exceed uint256 max
      if or(iszero(b), iszero(iszero(gt(a, div(not(0), RAY))))) {
        revert(0, 0)
      }
      c := div(mul(a, RAY), b)
    }
  }

  /**
   * @dev Casts ray down to wad
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Ray
   * @return b = a converted to wad, rounded half up to the nearest wad
   */
  function rayToWad(uint256 a) internal pure returns (uint256 b) {
    assembly {
      b := div(a, WAD_RAY_RATIO)
      let remainder := mod(a, WAD_RAY_RATIO)
      if iszero(lt(remainder, div(WAD_RAY_RATIO, 2))) {
        b := add(b, 1)
      }
    }
  }

  /**
   * @dev Converts wad up to ray
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Wad
   * @return b = a converted in ray
   */
  function wadToRay(uint256 a) internal pure returns (uint256 b) {
    // to avoid overflow, b/WAD_RAY_RATIO == a
    assembly {
      b := mul(a, WAD_RAY_RATIO)

      if iszero(eq(div(b, WAD_RAY_RATIO), a)) {
        revert(0, 0)
      }
    }
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import {IAaveIncentivesController} from '../../../interfaces/IAaveIncentivesController.sol';
import {IPool} from '../../../interfaces/IPool.sol';
import {IncentivizedERC20} from './IncentivizedERC20.sol';

/**
 * @title MintableIncentivizedERC20
 * @author Aave
 * @notice Implements mint and burn functions for IncentivizedERC20
 */
abstract contract MintableIncentivizedERC20 is IncentivizedERC20 {
  /**
   * @dev Constructor.
   * @param pool The reference to the main Pool contract
   * @param name The name of the token
   * @param symbol The symbol of the token
   * @param decimals The number of decimals of the token
   * @param rewardsController The address of the rewards controller contract
   */
  constructor(
    IPool pool,
    string memory name,
    string memory symbol,
    uint8 decimals,
    address rewardsController
  ) IncentivizedERC20(pool, name, symbol, decimals, rewardsController) {
    // Intentionally left blank
  }

  /**
   * @notice Mints tokens to an account and apply incentives if defined
   * @param account The address receiving tokens
   * @param amount The amount of tokens to mint
   */
  function _mint(address account, uint120 amount) internal virtual {
    uint256 oldTotalSupply = _totalSupply;
    _totalSupply = oldTotalSupply + amount;

    uint120 oldAccountBalance = _userState[account].balance;
    _userState[account].balance = oldAccountBalance + amount;

    if (address(REWARDS_CONTROLLER) != address(0)) {
      REWARDS_CONTROLLER.handleAction(account, oldTotalSupply, oldAccountBalance);
    }
  }

  /**
   * @notice Burns tokens from an account and apply incentives if defined
   * @param account The account whose tokens are burnt
   * @param amount The amount of tokens to burn
   */
  function _burn(address account, uint120 amount) internal virtual {
    uint256 oldTotalSupply = _totalSupply;
    _totalSupply = oldTotalSupply - amount;

    uint120 oldAccountBalance = _userState[account].balance;
    _userState[account].balance = oldAccountBalance - amount;

    if (address(REWARDS_CONTROLLER) != address(0)) {
      REWARDS_CONTROLLER.handleAction(account, oldTotalSupply, oldAccountBalance);
    }
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import {Context} from '../../../dependencies/openzeppelin/contracts/Context.sol';
import {IERC20} from '../../../dependencies/openzeppelin/contracts/IERC20.sol';
import {IERC20Detailed} from '../../../dependencies/openzeppelin/contracts/IERC20Detailed.sol';
import {SafeCast} from 'openzeppelin-contracts/contracts/utils/math/SafeCast.sol';
import {WadRayMath} from '../../libraries/math/WadRayMath.sol';
import {Errors} from '../../libraries/helpers/Errors.sol';
import {IAaveIncentivesController} from '../../../interfaces/IAaveIncentivesController.sol';
import {IPoolAddressesProvider} from '../../../interfaces/IPoolAddressesProvider.sol';
import {IPool} from '../../../interfaces/IPool.sol';
import {IACLManager} from '../../../interfaces/IACLManager.sol';
import {DelegationMode} from './DelegationMode.sol';

/**
 * @title IncentivizedERC20
 * @author Aave, inspired by the Openzeppelin ERC20 implementation
 * @notice Basic ERC20 implementation
 */
abstract contract IncentivizedERC20 is Context, IERC20Detailed {
  using WadRayMath for uint256;
  using SafeCast for uint256;

  /**
   * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
   * @param spender Address that may be allowed to operate on tokens without being their owner.
   * @param allowance Amount of tokens a `spender` is allowed to operate with.
   * @param needed Minimum amount required to perform a transfer.
   */
  error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

  /**
   * @dev Only pool admin can call functions marked by this modifier.
   */
  modifier onlyPoolAdmin() {
    IACLManager aclManager = IACLManager(_addressesProvider.getACLManager());
    require(aclManager.isPoolAdmin(_msgSender()), Errors.CallerNotPoolAdmin());
    _;
  }

  /**
   * @dev Only pool can call functions marked by this modifier.
   */
  modifier onlyPool() {
    require(_msgSender() == address(POOL), Errors.CallerMustBePool());
    _;
  }

  /**
   * @dev UserState - additionalData is a flexible field.
   * ATokens and VariableDebtTokens use this field store the index of the
   * user's last supply/withdrawal/borrow/repayment.
   */
  struct UserState {
    uint120 balance;
    DelegationMode delegationMode;
    uint128 additionalData;
  }
  // Map of users address and their state data (userAddress => userStateData)
  mapping(address => UserState) internal _userState;

  // Map of allowances (delegator => delegatee => allowanceAmount)
  mapping(address => mapping(address => uint256)) private _allowances;

  uint256 internal _totalSupply;
  string private _name;
  string private _symbol;
  uint8 private _decimals;
  // @dev deprecated on v3.4.0, replaced with immutable REWARDS_CONTROLLER
  IAaveIncentivesController internal __deprecated_incentivesController;
  IPoolAddressesProvider internal immutable _addressesProvider;
  IPool public immutable POOL;
  /**
   * @notice Returns the address of the Incentives Controller contract
   * @return The address of the Incentives Controller
   */
  IAaveIncentivesController public immutable REWARDS_CONTROLLER;

  /**
   * @dev Constructor.
   * @param pool The reference to the main Pool contract
   * @param name_ The name of the token
   * @param symbol_ The symbol of the token
   * @param decimals_ The number of decimals of the token
   * @param rewardsController The address of the rewards controller contract
   */
  constructor(
    IPool pool,
    string memory name_,
    string memory symbol_,
    uint8 decimals_,
    address rewardsController
  ) {
    _addressesProvider = pool.ADDRESSES_PROVIDER();
    _name = name_;
    _symbol = symbol_;
    _decimals = decimals_;
    POOL = pool;
    REWARDS_CONTROLLER = IAaveIncentivesController(rewardsController);
  }

  /// @inheritdoc IERC20Detailed
  function name() public view override returns (string memory) {
    return _name;
  }

  /// @inheritdoc IERC20Detailed
  function symbol() external view override returns (string memory) {
    return _symbol;
  }

  /// @inheritdoc IERC20Detailed
  function decimals() external view override returns (uint8) {
    return _decimals;
  }

  /// @inheritdoc IERC20
  function totalSupply() public view virtual override returns (uint256) {
    return _totalSupply;
  }

  /// @inheritdoc IERC20
  function balanceOf(address account) public view virtual override returns (uint256) {
    return _userState[account].balance;
  }

  /**
   * @notice Returns the address of the Incentives Controller contract
   * @return The address of the Incentives Controller
   */
  function getIncentivesController() external view virtual returns (IAaveIncentivesController) {
    return REWARDS_CONTROLLER;
  }

  /// @inheritdoc IERC20
  function transfer(address recipient, uint256 amount) external virtual override returns (bool) {
    uint120 castAmount = amount.toUint120();
    _transfer(_msgSender(), recipient, castAmount);
    return true;
  }

  /// @inheritdoc IERC20
  function allowance(
    address owner,
    address spender
  ) external view virtual override returns (uint256) {
    return _allowances[owner][spender];
  }

  /// @inheritdoc IERC20
  function approve(address spender, uint256 amount) external virtual override returns (bool) {
    _approve(_msgSender(), spender, amount);
    return true;
  }

  /// @inheritdoc IERC20
  function transferFrom(
    address sender,
    address recipient,
    uint256 amount
  ) external virtual override returns (bool) {
    uint120 castAmount = amount.toUint120();
    _approve(sender, _msgSender(), _allowances[sender][_msgSender()] - castAmount);
    _transfer(sender, recipient, castAmount);
    return true;
  }

  /**
   * @notice Increases the allowance of spender to spend _msgSender() tokens
   * @param spender The user allowed to spend on behalf of _msgSender()
   * @param addedValue The amount being added to the allowance
   * @return `true`
   */
  function increaseAllowance(address spender, uint256 addedValue) external virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
    return true;
  }

  /**
   * @notice Decreases the allowance of spender to spend _msgSender() tokens
   * @param spender The user allowed to spend on behalf of _msgSender()
   * @param subtractedValue The amount being subtracted to the allowance
   * @return `true`
   */
  function decreaseAllowance(
    address spender,
    uint256 subtractedValue
  ) external virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender] - subtractedValue);
    return true;
  }

  /**
   * @dev Updates `owner`'s allowance for `spender` based on spent `value`.
   *
   * Revert if not enough allowance is available.
   *
   * @param owner The owner of the tokens
   * @param spender The user allowed to spend on behalf of owner
   * @param amount The minimum amount being consumed from the allowance
   * @param correctedAmount The maximum amount being consumed from the allowance
   */
  function _spendAllowance(
    address owner,
    address spender,
    uint256 amount,
    uint256 correctedAmount
  ) internal virtual {
    uint256 currentAllowance = _allowances[owner][spender];
    if (currentAllowance < amount) {
      revert ERC20InsufficientAllowance(spender, currentAllowance, amount);
    }

    uint256 consumption = currentAllowance >= correctedAmount ? correctedAmount : currentAllowance;
    _approve(owner, spender, currentAllowance - consumption);
  }

  /**
   * @notice Transfers tokens between two users and apply incentives if defined.
   * @param sender The source address
   * @param recipient The destination address
   * @param amount The amount getting transferred
   */
  function _transfer(address sender, address recipient, uint120 amount) internal virtual {
    uint120 oldSenderBalance = _userState[sender].balance;
    _userState[sender].balance = oldSenderBalance - amount;
    uint120 oldRecipientBalance = _userState[recipient].balance;
    _userState[recipient].balance = oldRecipientBalance + amount;

    if (address(REWARDS_CONTROLLER) != address(0)) {
      uint256 currentTotalSupply = _totalSupply;
      REWARDS_CONTROLLER.handleAction(sender, currentTotalSupply, oldSenderBalance);
      if (sender != recipient) {
        REWARDS_CONTROLLER.handleAction(recipient, currentTotalSupply, oldRecipientBalance);
      }
    }
  }

  /**
   * @notice Approve `spender` to use `amount` of `owner`s balance
   * @param owner The address owning the tokens
   * @param spender The address approved for spending
   * @param amount The amount of tokens to approve spending of
   */
  function _approve(address owner, address spender, uint256 amount) internal virtual {
    _allowances[owner][spender] = amount;
    emit Approval(owner, spender, amount);
  }

  /**
   * @notice Update the name of the token
   * @param newName The new name for the token
   */
  function _setName(string memory newName) internal {
    _name = newName;
  }

  /**
   * @notice Update the symbol for the token
   * @param newSymbol The new symbol for the token
   */
  function _setSymbol(string memory newSymbol) internal {
    _symbol = newSymbol;
  }

  /**
   * @notice Update the number of decimals for the token
   * @param newDecimals The new number of decimals for the token
   */
  function _setDecimals(uint8 newDecimals) internal {
    _decimals = newDecimals;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import {IERC20} from './IERC20.sol';

interface IERC20Detailed is IERC20 {
  function name() external view returns (string memory);

  function symbol() external view returns (string memory);

  function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IPoolAddressesProvider} from './IPoolAddressesProvider.sol';

/**
 * @title IACLManager
 * @author Aave
 * @notice Defines the basic interface for the ACL Manager
 */
interface IACLManager {
  /**
   * @notice Returns the contract address of the PoolAddressesProvider
   * @return The address of the PoolAddressesProvider
   */
  function ADDRESSES_PROVIDER() external view returns (IPoolAddressesProvider);

  /**
   * @notice Returns the identifier of the PoolAdmin role
   * @return The id of the PoolAdmin role
   */
  function POOL_ADMIN_ROLE() external view returns (bytes32);

  /**
   * @notice Returns the identifier of the EmergencyAdmin role
   * @return The id of the EmergencyAdmin role
   */
  function EMERGENCY_ADMIN_ROLE() external view returns (bytes32);

  /**
   * @notice Returns the identifier of the RiskAdmin role
   * @return The id of the RiskAdmin role
   */
  function RISK_ADMIN_ROLE() external view returns (bytes32);

  /**
   * @notice Returns the identifier of the FlashBorrower role
   * @return The id of the FlashBorrower role
   */
  function FLASH_BORROWER_ROLE() external view returns (bytes32);

  /**
   * @notice Returns the identifier of the Bridge role
   * @return The id of the Bridge role
   */
  function BRIDGE_ROLE() external view returns (bytes32);

  /**
   * @notice Returns the identifier of the AssetListingAdmin role
   * @return The id of the AssetListingAdmin role
   */
  function ASSET_LISTING_ADMIN_ROLE() external view returns (bytes32);

  /**
   * @notice Set the role as admin of a specific role.
   * @dev By default the admin role for all roles is `DEFAULT_ADMIN_ROLE`.
   * @param role The role to be managed by the admin role
   * @param adminRole The admin role
   */
  function setRoleAdmin(bytes32 role, bytes32 adminRole) external;

  /**
   * @notice Adds a new admin as PoolAdmin
   * @param admin The address of the new admin
   */
  function addPoolAdmin(address admin) external;

  /**
   * @notice Removes an admin as PoolAdmin
   * @param admin The address of the admin to remove
   */
  function removePoolAdmin(address admin) external;

  /**
   * @notice Returns true if the address is PoolAdmin, false otherwise
   * @param admin The address to check
   * @return True if the given address is PoolAdmin, false otherwise
   */
  function isPoolAdmin(address admin) external view returns (bool);

  /**
   * @notice Adds a new admin as EmergencyAdmin
   * @param admin The address of the new admin
   */
  function addEmergencyAdmin(address admin) external;

  /**
   * @notice Removes an admin as EmergencyAdmin
   * @param admin The address of the admin to remove
   */
  function removeEmergencyAdmin(address admin) external;

  /**
   * @notice Returns true if the address is EmergencyAdmin, false otherwise
   * @param admin The address to check
   * @return True if the given address is EmergencyAdmin, false otherwise
   */
  function isEmergencyAdmin(address admin) external view returns (bool);

  /**
   * @notice Adds a new admin as RiskAdmin
   * @param admin The address of the new admin
   */
  function addRiskAdmin(address admin) external;

  /**
   * @notice Removes an admin as RiskAdmin
   * @param admin The address of the admin to remove
   */
  function removeRiskAdmin(address admin) external;

  /**
   * @notice Returns true if the address is RiskAdmin, false otherwise
   * @param admin The address to check
   * @return True if the given address is RiskAdmin, false otherwise
   */
  function isRiskAdmin(address admin) external view returns (bool);

  /**
   * @notice Adds a new address as FlashBorrower
   * @param borrower The address of the new FlashBorrower
   */
  function addFlashBorrower(address borrower) external;

  /**
   * @notice Removes an address as FlashBorrower
   * @param borrower The address of the FlashBorrower to remove
   */
  function removeFlashBorrower(address borrower) external;

  /**
   * @notice Returns true if the address is FlashBorrower, false otherwise
   * @param borrower The address to check
   * @return True if the given address is FlashBorrower, false otherwise
   */
  function isFlashBorrower(address borrower) external view returns (bool);

  /**
   * @notice Adds a new address as Bridge
   * @param bridge The address of the new Bridge
   */
  function addBridge(address bridge) external;

  /**
   * @notice Removes an address as Bridge
   * @param bridge The address of the bridge to remove
   */
  function removeBridge(address bridge) external;

  /**
   * @notice Returns true if the address is Bridge, false otherwise
   * @param bridge The address to check
   * @return True if the given address is Bridge, false otherwise
   */
  function isBridge(address bridge) external view returns (bool);

  /**
   * @notice Adds a new admin as AssetListingAdmin
   * @param admin The address of the new admin
   */
  function addAssetListingAdmin(address admin) external;

  /**
   * @notice Removes an admin as AssetListingAdmin
   * @param admin The address of the admin to remove
   */
  function removeAssetListingAdmin(address admin) external;

  /**
   * @notice Returns true if the address is AssetListingAdmin, false otherwise
   * @param admin The address to check
   * @return True if the given address is AssetListingAdmin, false otherwise
   */
  function isAssetListingAdmin(address admin) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

enum DelegationMode {
  NO_DELEGATION,
  VOTING_DELEGATED,
  PROPOSITION_DELEGATED,
  FULL_POWER_DELEGATED
}

{
  "remappings": [
    "aave-address-book/=lib/aave-helpers/lib/aave-address-book/src/",
    "aave-helpers/=lib/aave-helpers/",
    "aave-v3-origin-tests/=lib/aave-v3-origin/tests/",
    "aave-v3-origin/=lib/aave-v3-origin/src/",
    "erc4626-tests/=lib/aave-helpers/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts-upgradeable/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/",
    "solidity-utils/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/src/",
    "lib/aave-helpers/:aave-address-book/=lib/aave-helpers/lib/aave-address-book/src/",
    "lib/aave-helpers/:solidity-utils/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/src/",
    "@openzeppelin/contracts-upgradeable/=lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/contracts/=lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/",
    "ds-test/=lib/aave-v3-origin/lib/forge-std/lib/ds-test/src/",
    "halmos-cheatcodes/=lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "none",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false,
  "libraries": {
    "lib/aave-v3-origin/src/contracts/protocol/libraries/logic/BorrowLogic.sol": {
      "BorrowLogic": "0xFeD9871528E713B5038c4c44BbE7a315f56cAdc6"
    },
    "lib/aave-v3-origin/src/contracts/protocol/libraries/logic/ConfiguratorLogic.sol": {
      "ConfiguratorLogic": "0x6E2aFD57a161d12f34f416c29619BFeAcAC8AA18"
    },
    "lib/aave-v3-origin/src/contracts/protocol/libraries/logic/EModeLogic.sol": {
      "EModeLogic": "0xD1bddC05A3BB5A7907d82A1b4F1E21dBCE69c3d5"
    },
    "lib/aave-v3-origin/src/contracts/protocol/libraries/logic/FlashLoanLogic.sol": {
      "FlashLoanLogic": "0x5e84CEe2afb7B37d2AB14722C39A7c1C26F5B0BB"
    },
    "lib/aave-v3-origin/src/contracts/protocol/libraries/logic/LiquidationLogic.sol": {
      "LiquidationLogic": "0x36Ae486289bB807C3C79A1427b9c3D934294ef43"
    },
    "lib/aave-v3-origin/src/contracts/protocol/libraries/logic/PoolLogic.sol": {
      "PoolLogic": "0xE51B69e5722Bf547866A4d7Bc190c6e81b626806"
    },
    "lib/aave-v3-origin/src/contracts/protocol/libraries/logic/SupplyLogic.sol": {
      "SupplyLogic": "0x034Fd14b9Ae6bB066a1F9f85A55e990b0b25c168"
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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IPool","name":"pool","type":"address"},{"internalType":"address","name":"rewardsController","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"CallerMustBePool","type":"error"},{"inputs":[],"name":"ECDSAInvalidSignature","type":"error"},{"inputs":[{"internalType":"uint256","name":"length","type":"uint256"}],"name":"ECDSAInvalidSignatureLength","type":"error"},{"inputs":[{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"ECDSAInvalidSignatureS","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"InsufficientBorrowAllowance","type":"error"},{"inputs":[],"name":"InvalidBurnAmount","type":"error"},{"inputs":[],"name":"InvalidExpiration","type":"error"},{"inputs":[],"name":"InvalidMintAmount","type":"error"},{"inputs":[],"name":"InvalidSignature","type":"error"},{"inputs":[],"name":"OperationNotSupported","type":"error"},{"inputs":[],"name":"PoolAddressesDoNotMatch","type":"error"},{"inputs":[{"internalType":"uint8","name":"bits","type":"uint8"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"SafeCastOverflowedUintDowncast","type":"error"},{"inputs":[],"name":"ZeroAddressNotValid","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"fromUser","type":"address"},{"indexed":true,"internalType":"address","name":"toUser","type":"address"},{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BorrowAllowanceDelegated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"target","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"balanceIncrease","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"underlyingAsset","type":"address"},{"indexed":true,"internalType":"address","name":"pool","type":"address"},{"indexed":false,"internalType":"address","name":"incentivesController","type":"address"},{"indexed":false,"internalType":"uint8","name":"debtTokenDecimals","type":"uint8"},{"indexed":false,"internalType":"string","name":"debtTokenName","type":"string"},{"indexed":false,"internalType":"string","name":"debtTokenSymbol","type":"string"},{"indexed":false,"internalType":"bytes","name":"params","type":"bytes"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"caller","type":"address"},{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"balanceIncrease","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DEBT_TOKEN_REVISION","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DELEGATION_WITH_SIG_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"EIP712_REVISION","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"POOL","outputs":[{"internalType":"contract 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IAaveIncentivesController","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getPreviousIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getScaledUserBalanceAndSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IPool","name":"initializingPool","type":"address"},{"internalType":"address","name":"underlyingAsset","type":"address"},{"internalType":"uint8","name":"debtTokenDecimals","type":"uint8"},{"internalType":"string","name":"debtTokenName","type":"string"},{"internalType":"string","name":"debtTokenSymbol","type":"string"},{"internalType":"bytes","name":"params","type":"bytes"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"address","name":"onBehalfOf","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"scaledAmount","type":"uint256"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"mint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"scaledBalanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"scaledTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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00000000000000000000000087870bca3f3fd6335c3f4ce8392d69350b4fa4e20000000000000000000000008164cc65827dcfe994ab23944cbc90e0aa80bfcb

-----Decoded View---------------
Arg [0] : pool (address): 0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2
Arg [1] : rewardsController (address): 0x8164Cc65827dcFe994AB23944CBC90e0aa80bFcb

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000087870bca3f3fd6335c3f4ce8392d69350b4fa4e2
Arg [1] : 0000000000000000000000008164cc65827dcfe994ab23944cbc90e0aa80bfcb