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// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {IERC20Detailed} from '../dependencies/openzeppelin/contracts/IERC20Detailed.sol';
import {ILendingPoolAddressesProvider} from '../interfaces/ILendingPoolAddressesProvider.sol';
import {IUiPoolDataProviderV2} from './interfaces/IUiPoolDataProviderV2.sol';
import {ILendingPool} from '../interfaces/ILendingPool.sol';
import {IOracle} from './interfaces/IOracle.sol';
import {IAToken} from '../interfaces/IAToken.sol';
import {IVariableDebtToken} from '../interfaces/IVariableDebtToken.sol';
import {IStableDebtToken} from '../interfaces/IStableDebtToken.sol';
import {WadRayMath} from '../protocol/libraries/math/WadRayMath.sol';
import {ReserveConfiguration} from '../protocol/libraries/configuration/ReserveConfiguration.sol';
import {UserConfiguration} from '../protocol/libraries/configuration/UserConfiguration.sol';
import {DataTypes} from '../protocol/libraries/types/DataTypes.sol';
import {IChainlinkAggregator} from '../interfaces/IChainlinkAggregator.sol';
import {DefaultReserveInterestRateStrategy} from '../protocol/lendingpool/DefaultReserveInterestRateStrategy.sol';
import {IERC20DetailedBytes} from './interfaces/IERC20DetailedBytes.sol';

contract UiPoolDataProviderV2 is IUiPoolDataProviderV2 {
  using WadRayMath for uint256;
  using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
  using UserConfiguration for DataTypes.UserConfigurationMap;

  IChainlinkAggregator public immutable networkBaseTokenPriceInUsdProxyAggregator;
  IChainlinkAggregator public immutable marketReferenceCurrencyPriceInUsdProxyAggregator;
  uint256 public constant ETH_CURRENCY_UNIT = 1 ether;
  address public constant MKRAddress = 0x9f8F72aA9304c8B593d555F12eF6589cC3A579A2;

  constructor(
    IChainlinkAggregator _networkBaseTokenPriceInUsdProxyAggregator,
    IChainlinkAggregator _marketReferenceCurrencyPriceInUsdProxyAggregator
  ) public {
    networkBaseTokenPriceInUsdProxyAggregator = _networkBaseTokenPriceInUsdProxyAggregator;
    marketReferenceCurrencyPriceInUsdProxyAggregator = _marketReferenceCurrencyPriceInUsdProxyAggregator;
  }

  function getInterestRateStrategySlopes(DefaultReserveInterestRateStrategy interestRateStrategy)
    internal
    view
    returns (
      uint256,
      uint256,
      uint256,
      uint256
    )
  {
    return (
      0,
      0,
      0,
      0
    );
  }

  function getReservesList(ILendingPoolAddressesProvider provider)
    public
    view
    override
    returns (address[] memory)
  {
    ILendingPool lendingPool = ILendingPool(provider.getLendingPool());
    return lendingPool.getReservesList();
  }

  function getReservesData(ILendingPoolAddressesProvider provider)
    public
    view
    override
    returns (AggregatedReserveData[] memory, BaseCurrencyInfo memory)
  {
    IOracle oracle = IOracle(provider.getPriceOracle());
    ILendingPool lendingPool = ILendingPool(provider.getLendingPool());
    address[] memory reserves = lendingPool.getReservesList();
    AggregatedReserveData[] memory reservesData = new AggregatedReserveData[](reserves.length);

    for (uint256 i = 0; i < reserves.length; i++) {
      AggregatedReserveData memory reserveData = reservesData[i];
      reserveData.underlyingAsset = reserves[i];

      // reserve current state
      DataTypes.ReserveData memory baseData = lendingPool.getReserveData(
        reserveData.underlyingAsset
      );
      reserveData.liquidityIndex = baseData.liquidityIndex;
      reserveData.variableBorrowIndex = baseData.variableBorrowIndex;
      reserveData.liquidityRate = baseData.currentLiquidityRate;
      reserveData.variableBorrowRate = baseData.currentVariableBorrowRate;
      reserveData.stableBorrowRate = baseData.currentStableBorrowRate;
      reserveData.lastUpdateTimestamp = baseData.lastUpdateTimestamp;
      reserveData.aTokenAddress = baseData.aTokenAddress;
      reserveData.stableDebtTokenAddress = baseData.stableDebtTokenAddress;
      reserveData.variableDebtTokenAddress = baseData.variableDebtTokenAddress;
      reserveData.interestRateStrategyAddress = baseData.interestRateStrategyAddress;
      reserveData.priceInMarketReferenceCurrency = oracle.getAssetPrice(
        reserveData.underlyingAsset
      );

      reserveData.availableLiquidity = IERC20Detailed(reserveData.underlyingAsset).balanceOf(
        reserveData.aTokenAddress
      );
      (
        reserveData.totalPrincipalStableDebt,
        ,
        reserveData.averageStableRate,
        reserveData.stableDebtLastUpdateTimestamp
      ) = IStableDebtToken(reserveData.stableDebtTokenAddress).getSupplyData();
      reserveData.totalScaledVariableDebt = IVariableDebtToken(reserveData.variableDebtTokenAddress)
        .scaledTotalSupply();

      if (address(reserveData.underlyingAsset) == address(MKRAddress)) {
        bytes32 symbol = IERC20DetailedBytes(reserveData.underlyingAsset).symbol();
        reserveData.symbol = bytes32ToString(symbol);
      } else {
        reserveData.symbol = IERC20Detailed(reserveData.underlyingAsset).symbol();
      }

      (
        reserveData.baseLTVasCollateral,
        reserveData.reserveLiquidationThreshold,
        reserveData.reserveLiquidationBonus,
        reserveData.decimals,
        reserveData.reserveFactor
      ) = baseData.configuration.getParamsMemory();
      (
        reserveData.isActive,
        reserveData.isFrozen,
        reserveData.borrowingEnabled,
        reserveData.stableBorrowRateEnabled
      ) = baseData.configuration.getFlagsMemory();
      reserveData.usageAsCollateralEnabled = reserveData.baseLTVasCollateral != 0;
      (
        reserveData.variableRateSlope1,
        reserveData.variableRateSlope2,
        reserveData.stableRateSlope1,
        reserveData.stableRateSlope2
      ) = getInterestRateStrategySlopes(
        DefaultReserveInterestRateStrategy(reserveData.interestRateStrategyAddress)
      );
    }

    BaseCurrencyInfo memory baseCurrencyInfo;
    baseCurrencyInfo.networkBaseTokenPriceInUsd = networkBaseTokenPriceInUsdProxyAggregator
      .latestAnswer();
    baseCurrencyInfo.networkBaseTokenPriceDecimals = networkBaseTokenPriceInUsdProxyAggregator
      .decimals();

    try oracle.BASE_CURRENCY_UNIT() returns (uint256 baseCurrencyUnit) {
      if (ETH_CURRENCY_UNIT == baseCurrencyUnit) {
        baseCurrencyInfo.marketReferenceCurrencyUnit = ETH_CURRENCY_UNIT;
        baseCurrencyInfo
        .marketReferenceCurrencyPriceInUsd = marketReferenceCurrencyPriceInUsdProxyAggregator
        .latestAnswer();
      } else {
        baseCurrencyInfo.marketReferenceCurrencyUnit = baseCurrencyUnit;
        baseCurrencyInfo.marketReferenceCurrencyPriceInUsd = int256(baseCurrencyUnit);
      }
    } catch (
      bytes memory /*lowLevelData*/
    ) {
      baseCurrencyInfo.marketReferenceCurrencyUnit = ETH_CURRENCY_UNIT;
      baseCurrencyInfo
        .marketReferenceCurrencyPriceInUsd = marketReferenceCurrencyPriceInUsdProxyAggregator
        .latestAnswer();
    }

    return (reservesData, baseCurrencyInfo);
  }

  function getUserReservesData(ILendingPoolAddressesProvider provider, address user)
    external
    view
    override
    returns (UserReserveData[] memory)
  {
    ILendingPool lendingPool = ILendingPool(provider.getLendingPool());
    address[] memory reserves = lendingPool.getReservesList();
    DataTypes.UserConfigurationMap memory userConfig = lendingPool.getUserConfiguration(user);

    UserReserveData[] memory userReservesData = new UserReserveData[](
      user != address(0) ? reserves.length : 0
    );

    for (uint256 i = 0; i < reserves.length; i++) {
      DataTypes.ReserveData memory baseData = lendingPool.getReserveData(reserves[i]);

      // user reserve data
      userReservesData[i].underlyingAsset = reserves[i];
      userReservesData[i].scaledATokenBalance = IAToken(baseData.aTokenAddress).scaledBalanceOf(
        user
      );
      userReservesData[i].usageAsCollateralEnabledOnUser = userConfig.isUsingAsCollateral(i);

      if (userConfig.isBorrowing(i)) {
        userReservesData[i].scaledVariableDebt = IVariableDebtToken(
          baseData.variableDebtTokenAddress
        ).scaledBalanceOf(user);
        userReservesData[i].principalStableDebt = IStableDebtToken(baseData.stableDebtTokenAddress)
          .principalBalanceOf(user);
        if (userReservesData[i].principalStableDebt != 0) {
          userReservesData[i].stableBorrowRate = IStableDebtToken(baseData.stableDebtTokenAddress)
            .getUserStableRate(user);
          userReservesData[i].stableBorrowLastUpdateTimestamp = IStableDebtToken(
            baseData.stableDebtTokenAddress
          ).getUserLastUpdated(user);
        }
      }
    }

    return (userReservesData);
  }

  function bytes32ToString(bytes32 _bytes32) public pure returns (string memory) {
    uint8 i = 0;
    while (i < 32 && _bytes32[i] != 0) {
      i++;
    }
    bytes memory bytesArray = new bytes(i);
    for (i = 0; i < 32 && _bytes32[i] != 0; i++) {
      bytesArray[i] = _bytes32[i];
    }
    return string(bytesArray);
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @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: agpl-3.0
pragma solidity 0.6.12;

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: agpl-3.0
pragma solidity 0.6.12;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when 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 SafeMath {
  /**
   * @dev Returns the addition of two unsigned integers, reverting on
   * overflow.
   *
   * Counterpart to Solidity's `+` operator.
   *
   * Requirements:
   * - Addition cannot overflow.
   */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a, 'SafeMath: addition overflow');

    return c;
  }

  /**
   * @dev Returns the subtraction of two unsigned integers, reverting on
   * overflow (when the result is negative).
   *
   * Counterpart to Solidity's `-` operator.
   *
   * Requirements:
   * - Subtraction cannot overflow.
   */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    return sub(a, b, 'SafeMath: subtraction overflow');
  }

  /**
   * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
   * overflow (when the result is negative).
   *
   * Counterpart to Solidity's `-` operator.
   *
   * Requirements:
   * - Subtraction cannot overflow.
   */
  function sub(
    uint256 a,
    uint256 b,
    string memory errorMessage
  ) internal pure returns (uint256) {
    require(b <= a, errorMessage);
    uint256 c = a - b;

    return c;
  }

  /**
   * @dev Returns the multiplication of two unsigned integers, reverting on
   * overflow.
   *
   * Counterpart to Solidity's `*` operator.
   *
   * Requirements:
   * - Multiplication cannot overflow.
   */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
    if (a == 0) {
      return 0;
    }

    uint256 c = a * b;
    require(c / a == b, 'SafeMath: multiplication overflow');

    return c;
  }

  /**
   * @dev Returns the integer division of two unsigned integers. Reverts on
   * division by zero. The result is rounded towards zero.
   *
   * Counterpart to Solidity's `/` operator. Note: this function uses a
   * `revert` opcode (which leaves remaining gas untouched) while Solidity
   * uses an invalid opcode to revert (consuming all remaining gas).
   *
   * Requirements:
   * - The divisor cannot be zero.
   */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    return div(a, b, 'SafeMath: division by zero');
  }

  /**
   * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
   * division by zero. The result is rounded towards zero.
   *
   * Counterpart to Solidity's `/` operator. Note: this function uses a
   * `revert` opcode (which leaves remaining gas untouched) while Solidity
   * uses an invalid opcode to revert (consuming all remaining gas).
   *
   * Requirements:
   * - The divisor cannot be zero.
   */
  function div(
    uint256 a,
    uint256 b,
    string memory errorMessage
  ) internal pure returns (uint256) {
    // Solidity only automatically asserts when dividing by 0
    require(b > 0, errorMessage);
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
  }

  /**
   * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
   * Reverts when dividing by zero.
   *
   * Counterpart to Solidity's `%` operator. This function uses a `revert`
   * opcode (which leaves remaining gas untouched) while Solidity uses an
   * invalid opcode to revert (consuming all remaining gas).
   *
   * Requirements:
   * - The divisor cannot be zero.
   */
  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    return mod(a, b, 'SafeMath: modulo by zero');
  }

  /**
   * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
   * Reverts with custom message when dividing by zero.
   *
   * Counterpart to Solidity's `%` operator. This function uses a `revert`
   * opcode (which leaves remaining gas untouched) while Solidity uses an
   * invalid opcode to revert (consuming all remaining gas).
   *
   * Requirements:
   * - The divisor cannot be zero.
   */
  function mod(
    uint256 a,
    uint256 b,
    string memory errorMessage
  ) internal pure returns (uint256) {
    require(b != 0, errorMessage);
    return a % b;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

/**
 * @title SignedSafeMath
 * @dev Signed math operations with safety checks that revert on error.
 */
library SignedSafeMath {
    int256 constant private _INT256_MIN = -2**255;

    /**
     * @dev Returns the multiplication of two signed integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(int256 a, int256 b) internal pure returns (int256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        require(!(a == -1 && b == _INT256_MIN), "SignedSafeMath: multiplication overflow");

        int256 c = a * b;
        require(c / a == b, "SignedSafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two signed integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(int256 a, int256 b) internal pure returns (int256) {
        require(b != 0, "SignedSafeMath: division by zero");
        require(!(b == -1 && a == _INT256_MIN), "SignedSafeMath: division overflow");

        int256 c = a / b;

        return c;
    }

    /**
     * @dev Returns the subtraction of two signed integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a - b;
        require((b >= 0 && c <= a) || (b < 0 && c > a), "SignedSafeMath: subtraction overflow");

        return c;
    }

    /**
     * @dev Returns the addition of two signed integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a + b;
        require((b >= 0 && c >= a) || (b < 0 && c < a), "SignedSafeMath: addition overflow");

        return c;
    }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';
import {IScaledBalanceToken} from './IScaledBalanceToken.sol';
import {IInitializableAToken} from './IInitializableAToken.sol';
import {IRewarder} from './IRewarder.sol';

interface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken {
  /**
   * @dev Emitted after the mint action
   * @param from The address performing the mint
   * @param value The amount being
   * @param index The new liquidity index of the reserve
   **/
  event Mint(address indexed from, uint256 value, uint256 index);

  /**
   * @dev Mints `amount` aTokens to `user`
   * @param user The address receiving the minted tokens
   * @param amount The amount of tokens getting minted
   * @param index The new liquidity index of the reserve
   * @return `true` if the the previous balance of the user was 0
   */
  function mint(
    address user,
    uint256 amount,
    uint256 index
  ) external returns (bool);

  /**
   * @dev Emitted after aTokens are burned
   * @param from The owner of the aTokens, getting them burned
   * @param target The address that will receive the underlying
   * @param value The amount being burned
   * @param index The new liquidity index of the reserve
   **/
  event Burn(address indexed from, address indexed target, uint256 value, uint256 index);

  /**
   * @dev Emitted during the transfer action
   * @param from The user whose tokens are being transferred
   * @param to The recipient
   * @param value The amount being transferred
   * @param index The new liquidity index of the reserve
   **/
  event BalanceTransfer(address indexed from, address indexed to, uint256 value, uint256 index);

  /**
   * @dev Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying`
   * @param user The owner of the aTokens, getting them burned
   * @param receiverOfUnderlying The address that will receive the underlying
   * @param amount The amount being burned
   * @param index The new liquidity index of the reserve
   **/
  function burn(
    address user,
    address receiverOfUnderlying,
    uint256 amount,
    uint256 index
  ) external;

  /**
   * @dev Mints aTokens to the reserve treasury
   * @param amount The amount of tokens getting minted
   * @param index The new liquidity index of the reserve
   */
  function mintToTreasury(uint256 amount, uint256 index) external;

  /**
   * @dev Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken
   * @param from The address getting liquidated, current owner of the aTokens
   * @param to The recipient
   * @param value The amount of tokens getting transferred
   **/
  function transferOnLiquidation(
    address from,
    address to,
    uint256 value
  ) external;

  /**
   * @dev Transfers the underlying asset to `target`. Used by the LendingPool to transfer
   * assets in borrow(), withdraw() and flashLoan()
   * @param user The recipient of the underlying
   * @param amount The amount getting transferred
   * @return The amount transferred
   **/
  function transferUnderlyingTo(address user, uint256 amount) external returns (uint256);

  /**
   * @dev Invoked to execute actions on the aToken side after a repayment.
   * @param user The user executing the repayment
   * @param amount The amount getting repaid
   **/
  function handleRepayment(address user, uint256 amount) external;

  /**
   * @dev Returns the address of the incentives controller contract
   **/
  function getIncentivesController() external view returns (IRewarder);

  /**
   * @dev Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH)
   **/
  function UNDERLYING_ASSET_ADDRESS() external view returns (address);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

interface IChainlinkAggregator {
  function decimals() external view returns (uint8);
  
  function latestAnswer() external view returns (int256);

  function latestTimestamp() external view returns (uint256);

  function latestRound() external view returns (uint256);

  function getAnswer(uint256 roundId) external view returns (int256);

  function getTimestamp(uint256 roundId) external view returns (uint256);

  event AnswerUpdated(int256 indexed current, uint256 indexed roundId, uint256 timestamp);
  event NewRound(uint256 indexed roundId, address indexed startedBy);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {ILendingPool} from './ILendingPool.sol';
import {IRewarder} from './IRewarder.sol';

/**
 * @title IInitializableAToken
 * @notice Interface for the initialize function on AToken
 * @author Aave
 **/
interface IInitializableAToken {
  /**
   * @dev Emitted when an aToken is initialized
   * @param underlyingAsset The address of the underlying asset
   * @param pool The address of the associated lending pool
   * @param treasury The address of the treasury
   * @param incentivesController The address of the incentives controller for this aToken
   * @param aTokenDecimals the decimals of the underlying
   * @param aTokenName the name of the aToken
   * @param aTokenSymbol the symbol of the aToken
   * @param params A set of encoded parameters for additional initialization
   **/
  event Initialized(
    address indexed underlyingAsset,
    address indexed pool,
    address treasury,
    address incentivesController,
    uint8 aTokenDecimals,
    string aTokenName,
    string aTokenSymbol,
    bytes params
  );

  /**
   * @dev Initializes the aToken
   * @param pool The address of the lending pool where this aToken will be used
   * @param treasury The address of the Aave treasury, receiving the fees on this aToken
   * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH)
   * @param incentivesController The smart contract managing potential incentives distribution
   * @param aTokenDecimals The decimals of the aToken, same as the underlying asset's
   * @param aTokenName The name of the aToken
   * @param aTokenSymbol The symbol of the aToken
   */
  function initialize(
    ILendingPool pool,
    address treasury,
    address underlyingAsset,
    IRewarder incentivesController,
    uint8 aTokenDecimals,
    string calldata aTokenName,
    string calldata aTokenSymbol,
    bytes calldata params
  ) external;
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {ILendingPool} from './ILendingPool.sol';
import {IRewarder} from './IRewarder.sol';

/**
 * @title IInitializableDebtToken
 * @notice Interface for the initialize function common between debt tokens
 * @author Aave
 **/
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 lending 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
  );

  /**
   * @dev Initializes the debt token.
   * @param pool The address of the lending pool where this aToken will be used
   * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH)
   * @param incentivesController The smart contract managing potential incentives distribution
   * @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
   */
  function initialize(
    ILendingPool pool,
    address underlyingAsset,
    IRewarder incentivesController,
    uint8 debtTokenDecimals,
    string memory debtTokenName,
    string memory debtTokenSymbol,
    bytes calldata params
  ) external;
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

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

interface ILendingPool {
  /**
   * @dev Emitted on deposit()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address initiating the deposit
   * @param onBehalfOf The beneficiary of the deposit, receiving the aTokens
   * @param amount The amount deposited
   * @param referral The referral code used
   **/
  event Deposit(
    address indexed reserve,
    address user,
    address indexed onBehalfOf,
    uint256 amount,
    uint16 indexed referral
  );

  /**
   * @dev Emitted on withdraw()
   * @param reserve The address of the underlyng asset being withdrawn
   * @param user The address initiating the withdrawal, owner of aTokens
   * @param to 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 borrowRateMode The rate mode: 1 for Stable, 2 for Variable
   * @param borrowRate The numeric rate at which the user has borrowed
   * @param referral The referral code used
   **/
  event Borrow(
    address indexed reserve,
    address user,
    address indexed onBehalfOf,
    uint256 amount,
    uint256 borrowRateMode,
    uint256 borrowRate,
    uint16 indexed referral
  );

  /**
   * @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
   **/
  event Repay(
    address indexed reserve,
    address indexed user,
    address indexed repayer,
    uint256 amount
  );

  /**
   * @dev Emitted on swapBorrowRateMode()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user swapping his rate mode
   * @param rateMode The rate mode that the user wants to swap to
   **/
  event Swap(address indexed reserve, address indexed user, uint256 rateMode);

  /**
   * @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 rebalanceStableBorrowRate()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user for which the rebalance has been executed
   **/
  event RebalanceStableBorrowRate(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 premium The fee flash borrowed
   * @param referralCode The referral code used
   **/
  event FlashLoan(
    address indexed target,
    address indexed initiator,
    address indexed asset,
    uint256 amount,
    uint256 premium,
    uint16 referralCode
  );

  /**
   * @dev Emitted when the pause is triggered.
   */
  event Paused();

  /**
   * @dev Emitted when the pause is lifted.
   */
  event Unpaused();

  /**
   * @dev Emitted when a borrower is liquidated. This event is emitted by the LendingPool via
   * LendingPoolCollateral manager using a DELEGATECALL
   * This allows to have the events in the generated ABI for LendingPool.
   * @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 liiquidator
   * @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. NOTE: This event is actually declared
   * in the ReserveLogic library and emitted in the updateInterestRates() function. Since the function is internal,
   * the event will actually be fired by the LendingPool contract. The event is therefore replicated here so it
   * gets added to the LendingPool ABI
   * @param reserve The address of the underlying asset of the reserve
   * @param liquidityRate The new liquidity rate
   * @param stableBorrowRate The new stable borrow rate
   * @param variableBorrowRate The new variable borrow rate
   * @param liquidityIndex The new liquidity index
   * @param variableBorrowIndex The new variable borrow index
   **/
  event ReserveDataUpdated(
    address indexed reserve,
    uint256 liquidityRate,
    uint256 stableBorrowRate,
    uint256 variableBorrowRate,
    uint256 liquidityIndex,
    uint256 variableBorrowIndex
  );

  /**
   * @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
   * - E.g. User deposits 100 USDC and gets in return 100 aUSDC
   * @param asset The address of the underlying asset to deposit
   * @param amount The amount to be deposited
   * @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;

  /**
   * @dev 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 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);

  /**
   * @dev Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
   * already deposited enough collateral, or he was given enough allowance by a credit delegator on the
   * corresponding debt token (StableDebtToken or VariableDebtToken)
   * - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet
   *   and 100 stable/variable debt tokens, depending on the `interestRateMode`
   * @param asset The address of the underlying asset to borrow
   * @param amount The amount to be borrowed
   * @param interestRateMode The interest rate mode at which the user wants to borrow: 1 for Stable, 2 for Variable
   * @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 onBehalfOf 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/stable 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 rateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
   * @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
   * @return The final amount repaid
   **/
  function repay(
    address asset,
    uint256 amount,
    uint256 rateMode,
    address onBehalfOf
  ) external returns (uint256);

  /**
   * @dev Allows a borrower to swap his debt between stable and variable mode, or viceversa
   * @param asset The address of the underlying asset borrowed
   * @param rateMode The rate mode that the user wants to swap to
   **/
  function swapBorrowRateMode(address asset, uint256 rateMode) external;

  /**
   * @dev Rebalances the stable interest rate of a user to the current stable rate defined on the reserve.
   * - Users can be rebalanced if the following conditions are satisfied:
   *     1. Usage ratio is above 95%
   *     2. the current deposit APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too much has been
   *        borrowed at a stable rate and depositors are not earning enough
   * @param asset The address of the underlying asset borrowed
   * @param user The address of the user to be rebalanced
   **/
  function rebalanceStableBorrowRate(address asset, address user) external;

  /**
   * @dev Allows depositors to enable/disable a specific deposited asset as collateral
   * @param asset The address of the underlying asset deposited
   * @param useAsCollateral `true` if the user wants to use the deposit as collateral, `false` otherwise
   **/
  function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external;

  /**
   * @dev 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 user 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 user,
    uint256 debtToCover,
    bool receiveAToken
  ) external;

  /**
   * @dev Allows smartcontracts to access the liquidity of the pool within one transaction,
   * as long as the amount taken plus a fee is returned.
   * IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept into consideration.
   * For further details please visit https://developers.aave.com
   * @param receiverAddress The address of the contract receiving the funds, implementing the IFlashLoanReceiver interface
   * @param assets The addresses of the assets being flash-borrowed
   * @param amounts The amounts amounts being flash-borrowed
   * @param modes 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 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
   *   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 on `modes` 1 or 2
   * @param params Variadic packed params to pass to the receiver as extra information
   * @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 flashLoan(
    address receiverAddress,
    address[] calldata assets,
    uint256[] calldata amounts,
    uint256[] calldata modes,
    address onBehalfOf,
    bytes calldata params,
    uint16 referralCode
  ) external;

  /**
   * @dev Returns the user account data across all the reserves
   * @param user The address of the user
   * @return totalCollateralETH the total collateral in ETH of the user
   * @return totalDebtETH the total debt in ETH of the user
   * @return availableBorrowsETH the borrowing power left of the user
   * @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 totalCollateralETH,
      uint256 totalDebtETH,
      uint256 availableBorrowsETH,
      uint256 currentLiquidationThreshold,
      uint256 ltv,
      uint256 healthFactor
    );

  function initReserve(
    address reserve,
    address aTokenAddress,
    address stableDebtAddress,
    address variableDebtAddress,
    address interestRateStrategyAddress
  ) external;

  function setReserveInterestRateStrategyAddress(address reserve, address rateStrategyAddress)
    external;

  function setConfiguration(address reserve, uint256 configuration) external;

  /**
   * @dev 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);

  /**
   * @dev 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);

  /**
   * @dev Returns the normalized income 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);

  /**
   * @dev Returns the normalized variable debt per unit of asset
   * @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);

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

  function finalizeTransfer(
    address asset,
    address from,
    address to,
    uint256 amount,
    uint256 balanceFromAfter,
    uint256 balanceToBefore
  ) external;

  function getReservesList() external view returns (address[] memory);

  function getAddressesProvider() external view returns (ILendingPoolAddressesProvider);

  function setPause(bool val) external;

  function paused() external view returns (bool);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @title LendingPoolAddressesProvider contract
 * @dev Main registry of addresses part of or connected to the protocol, including permissioned roles
 * - Acting also as factory of proxies and admin of those, so with right to change its implementations
 * - Owned by the Aave Governance
 * @author Aave
 **/
interface ILendingPoolAddressesProvider {
  event MarketIdSet(string newMarketId);
  event LendingPoolUpdated(address indexed newAddress);
  event ConfigurationAdminUpdated(address indexed newAddress);
  event EmergencyAdminUpdated(address indexed newAddress);
  event LendingPoolConfiguratorUpdated(address indexed newAddress);
  event LendingPoolCollateralManagerUpdated(address indexed newAddress);
  event PriceOracleUpdated(address indexed newAddress);
  event LendingRateOracleUpdated(address indexed newAddress);
  event ProxyCreated(bytes32 id, address indexed newAddress);
  event AddressSet(bytes32 id, address indexed newAddress, bool hasProxy);

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

  function setMarketId(string calldata marketId) external;

  function setAddress(bytes32 id, address newAddress) external;

  function setAddressAsProxy(bytes32 id, address impl) external;

  function getAddress(bytes32 id) external view returns (address);

  function getLendingPool() external view returns (address);

  function setLendingPoolImpl(address pool) external;

  function getLendingPoolConfigurator() external view returns (address);

  function setLendingPoolConfiguratorImpl(address configurator) external;

  function getLendingPoolCollateralManager() external view returns (address);

  function setLendingPoolCollateralManager(address manager) external;

  function getPoolAdmin() external view returns (address);

  function setPoolAdmin(address admin) external;

  function getEmergencyAdmin() external view returns (address);

  function setEmergencyAdmin(address admin) external;

  function getUiSigner() external view returns (address);

  function setUiSigner(address signer) external;

  function getPriceOracle() external view returns (address);

  function setPriceOracle(address priceOracle) external;

  function getLendingRateOracle() external view returns (address);

  function setLendingRateOracle(address lendingRateOracle) external;
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @title ILendingRateOracle interface
 * @notice Interface for the Aave borrow rate oracle. Provides the average market borrow rate to be used as a base for the stable borrow rate calculations
 **/

interface ILendingRateOracle {
  /**
    @dev returns the market borrow rate in ray
    **/
  function getMarketBorrowRate(address asset) external view returns (uint256);

  /**
    @dev sets the market borrow rate. Rate value must be in ray
    **/
  function setMarketBorrowRate(address asset, uint256 rate) external;
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

/**
 * @title IReserveInterestRateStrategyInterface interface
 * @dev Interface for the calculation of the interest rates
 * @author Aave
 */
interface IReserveInterestRateStrategy {
  function baseVariableBorrowRate() external view returns (uint256);

  function getMaxVariableBorrowRate() external view returns (uint256);

  function calculateInterestRates(
    address reserve,
    uint256 availableLiquidity,
    uint256 totalStableDebt,
    uint256 totalVariableDebt,
    uint256 averageStableBorrowRate,
    uint256 reserveFactor
  )
    external
    returns (
      uint256,
      uint256,
      uint256
    );

  function calculateInterestRates(
    address reserve,
    address aToken,
    uint256 liquidityAdded,
    uint256 liquidityTaken,
    uint256 totalStableDebt,
    uint256 totalVariableDebt,
    uint256 averageStableBorrowRate,
    uint256 reserveFactor
  )
    external
    returns (
      uint256 liquidityRate,
      uint256 stableBorrowRate,
      uint256 variableBorrowRate
    );
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

interface IRewarder {
  event RewardsAccrued(address indexed user, uint256 amount);

  event RewardsClaimed(address indexed user, address indexed to, uint256 amount);

  event RewardsClaimed(
    address indexed user,
    address indexed to,
    address indexed claimer,
    uint256 amount
  );

  event ClaimerSet(address indexed user, address indexed claimer);

  /*
   * @dev Returns the configuration of the distribution for a certain asset
   * @param asset The address of the reference asset of the distribution
   * @return The asset index, the emission per second and the last updated timestamp
   **/
  function getAssetData(address asset)
    external
    view
    returns (
      uint256,
      uint256,
      uint256
    );

  /*
   * LEGACY **************************
   * @dev Returns the configuration of the distribution for a certain asset
   * @param asset The address of the reference asset of the distribution
   * @return The asset index, the emission per second and the last updated timestamp
   **/
  function assets(address asset)
    external
    view
    returns (
      uint128,
      uint128,
      uint256
    );

  /**
   * @dev Whitelists an address to claim the rewards on behalf of another address
   * @param user The address of the user
   * @param claimer The address of the claimer
   */
  function setClaimer(address user, address claimer) external;

  /**
   * @dev Returns the whitelisted claimer for a certain address (0x0 if not set)
   * @param user The address of the user
   * @return The claimer address
   */
  function getClaimer(address user) external view returns (address);

  /**
   * @dev Configure assets for a certain rewards emission
   * @param assets The assets to incentivize
   * @param emissionsPerSecond The emission for each asset
   */
  function configureAssets(address[] calldata assets, uint256[] calldata emissionsPerSecond)
    external;

  /**
   * @dev Called by the corresponding asset on any update that affects the rewards distribution
   * @param asset The address of the user
   * @param userBalance The balance of the user of the asset in the lending pool
   * @param totalSupply The total supply of the asset in the lending pool
   **/
  function handleAction(
    address asset,
    uint256 userBalance,
    uint256 totalSupply
  ) external;

  /**
   * @dev Returns the total of rewards of an user, already accrued + not yet accrued
   * @param user The address of the user
   * @return The rewards
   **/
  function getRewardsBalance(address[] calldata assets, address user)
    external
    view
    returns (uint256);

  /**
   * @dev Claims reward for an user, on all the assets of the lending pool, accumulating the pending rewards
   * @param amount Amount of rewards to claim
   * @param to Address that will be receiving the rewards
   * @return Rewards claimed
   **/
  function claimRewards(
    address[] calldata assets,
    uint256 amount,
    address to
  ) external returns (uint256);

  /**
   * @dev Claims reward for an user on behalf, on all the assets of the lending pool, accumulating the pending rewards. The caller must
   * be whitelisted via "allowClaimOnBehalf" function by the RewardsAdmin role manager
   * @param amount Amount of rewards to claim
   * @param user Address to check and claim rewards
   * @param to Address that will be receiving the rewards
   * @return Rewards claimed
   **/
  function claimRewardsOnBehalf(
    address[] calldata assets,
    uint256 amount,
    address user,
    address to
  ) external returns (uint256);

  /**
   * @dev returns the unclaimed rewards of the user
   * @param user the address of the user
   * @return the unclaimed user rewards
   */
  function getUserUnclaimedRewards(address user) external view returns (uint256);

  /**
   * @dev returns the unclaimed rewards of the user
   * @param user the address of the user
   * @param asset The asset to incentivize
   * @return the user index for the asset
   */
  function getUserAssetData(address user, address asset) external view returns (uint256);

  /**
   * @dev for backward compatibility with previous implementation of the Incentives controller
   */
  function REWARD_TOKEN() external view returns (address);

  /**
   * @dev for backward compatibility with previous implementation of the Incentives controller
   */
  function PRECISION() external view returns (uint8);

  /**
   * @dev Gets the distribution end timestamp of the emissions
   */
  function DISTRIBUTION_END() external view returns (uint256);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

interface IScaledBalanceToken {
  /**
   * @dev Returns the scaled balance of the user. 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);

  /**
   * @dev 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 balance and the scaled total supply
   **/
  function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256);

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

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

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

/**
 * @title IStableDebtToken
 * @notice Defines the interface for the stable debt token
 * @dev It does not inherit from IERC20 to save in code size
 * @author Aave
 **/

interface IStableDebtToken is IInitializableDebtToken {
  /**
   * @dev Emitted when new stable debt is minted
   * @param user The address of the user who triggered the minting
   * @param onBehalfOf The recipient of stable debt tokens
   * @param amount The amount minted
   * @param currentBalance The current balance of the user
   * @param balanceIncrease The increase in balance since the last action of the user
   * @param newRate The rate of the debt after the minting
   * @param avgStableRate The new average stable rate after the minting
   * @param newTotalSupply The new total supply of the stable debt token after the action
   **/
  event Mint(
    address indexed user,
    address indexed onBehalfOf,
    uint256 amount,
    uint256 currentBalance,
    uint256 balanceIncrease,
    uint256 newRate,
    uint256 avgStableRate,
    uint256 newTotalSupply
  );

  /**
   * @dev Emitted when new stable debt is burned
   * @param user The address of the user
   * @param amount The amount being burned
   * @param currentBalance The current balance of the user
   * @param balanceIncrease The the increase in balance since the last action of the user
   * @param avgStableRate The new average stable rate after the burning
   * @param newTotalSupply The new total supply of the stable debt token after the action
   **/
  event Burn(
    address indexed user,
    uint256 amount,
    uint256 currentBalance,
    uint256 balanceIncrease,
    uint256 avgStableRate,
    uint256 newTotalSupply
  );

  /**
   * @dev Mints debt token to the `onBehalfOf` address.
   * - The resulting rate is the weighted average between the rate of the new debt
   * and the rate of the previous debt
   * @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 amount of debt tokens to mint
   * @param rate The rate of the debt being minted
   **/
  function mint(
    address user,
    address onBehalfOf,
    uint256 amount,
    uint256 rate
  ) external returns (bool);

  /**
   * @dev Burns debt of `user`
   * - The resulting rate is the weighted average between the rate of the new debt
   * and the rate of the previous debt
   * @param user The address of the user getting his debt burned
   * @param amount The amount of debt tokens getting burned
   **/
  function burn(address user, uint256 amount) external;

  /**
   * @dev Returns the average rate of all the stable rate loans.
   * @return The average stable rate
   **/
  function getAverageStableRate() external view returns (uint256);

  /**
   * @dev Returns the stable rate of the user debt
   * @return The stable rate of the user
   **/
  function getUserStableRate(address user) external view returns (uint256);

  /**
   * @dev Returns the timestamp of the last update of the user
   * @return The timestamp
   **/
  function getUserLastUpdated(address user) external view returns (uint40);

  /**
   * @dev Returns the principal, the total supply and the average stable rate
   **/
  function getSupplyData()
    external
    view
    returns (
      uint256,
      uint256,
      uint256,
      uint40
    );

  /**
   * @dev Returns the timestamp of the last update of the total supply
   * @return The timestamp
   **/
  function getTotalSupplyLastUpdated() external view returns (uint40);

  /**
   * @dev Returns the total supply and the average stable rate
   **/
  function getTotalSupplyAndAvgRate() external view returns (uint256, uint256);

  /**
   * @dev Returns the principal debt balance of the user
   * @return The debt balance of the user since the last burn/mint action
   **/
  function principalBalanceOf(address user) external view returns (uint256);

  /**
   * @dev Returns the address of the incentives controller contract
   **/
  function getIncentivesController() external view returns (IRewarder);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

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

/**
 * @title IVariableDebtToken
 * @author Aave
 * @notice Defines the basic interface for a variable debt token.
 **/
interface IVariableDebtToken is IScaledBalanceToken, IInitializableDebtToken {
  /**
   * @dev Emitted after the mint action
   * @param from The address performing the mint
   * @param onBehalfOf The address of the user on which behalf minting has been performed
   * @param value The amount to be minted
   * @param index The last index of the reserve
   **/
  event Mint(address indexed from, address indexed onBehalfOf, uint256 value, uint256 index);

  /**
   * @dev Mints debt token to the `onBehalfOf` address
   * @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 amount of debt being minted
   * @param index The variable debt index of the reserve
   * @return `true` if the the previous balance of the user is 0
   **/
  function mint(
    address user,
    address onBehalfOf,
    uint256 amount,
    uint256 index
  ) external returns (bool);

  /**
   * @dev Emitted when variable debt is burnt
   * @param user The user which debt has been burned
   * @param amount The amount of debt being burned
   * @param index The index of the user
   **/
  event Burn(address indexed user, uint256 amount, uint256 index);

  /**
   * @dev Burns user variable debt
   * @param user The user which debt is burnt
   * @param index The variable debt index of the reserve
   **/
  function burn(
    address user,
    uint256 amount,
    uint256 index
  ) external;

  /**
   * @dev Returns the address of the incentives controller contract
   **/
  function getIncentivesController() external view returns (IRewarder);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {IERC20} from '../../dependencies/openzeppelin/contracts/IERC20.sol';

interface IERC20DetailedBytes is IERC20 {
  function name() external view returns (bytes32);

  function symbol() external view returns (bytes32);

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

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @title IAaveOracle interface
 * @notice Interface for the Aave oracle.
 **/

interface IOracle {
  function BASE_CURRENCY() external view returns (address); // if usd returns 0x0, if eth returns weth address
  function BASE_CURRENCY_UNIT() external view returns (uint256);

  /***********
    @dev returns the asset price in ETH
     */
  function getAssetPrice(address asset) external view returns (uint256);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol';

interface IUiPoolDataProviderV2 {
  struct AggregatedReserveData {
    address underlyingAsset;
    string name;
    string symbol;
    uint256 decimals;
    uint256 baseLTVasCollateral;
    uint256 reserveLiquidationThreshold;
    uint256 reserveLiquidationBonus;
    uint256 reserveFactor;
    bool usageAsCollateralEnabled;
    bool borrowingEnabled;
    bool stableBorrowRateEnabled;
    bool isActive;
    bool isFrozen;
    // base data
    uint128 liquidityIndex;
    uint128 variableBorrowIndex;
    uint128 liquidityRate;
    uint128 variableBorrowRate;
    uint128 stableBorrowRate;
    uint40 lastUpdateTimestamp;
    address aTokenAddress;
    address stableDebtTokenAddress;
    address variableDebtTokenAddress;
    address interestRateStrategyAddress;
    //
    uint256 availableLiquidity;
    uint256 totalPrincipalStableDebt;
    uint256 averageStableRate;
    uint256 stableDebtLastUpdateTimestamp;
    uint256 totalScaledVariableDebt;
    uint256 priceInMarketReferenceCurrency;
    uint256 variableRateSlope1;
    uint256 variableRateSlope2;
    uint256 stableRateSlope1;
    uint256 stableRateSlope2;
  }

  struct UserReserveData {
    address underlyingAsset;
    uint256 scaledATokenBalance;
    bool usageAsCollateralEnabledOnUser;
    uint256 stableBorrowRate;
    uint256 scaledVariableDebt;
    uint256 principalStableDebt;
    uint256 stableBorrowLastUpdateTimestamp;
  }

  struct BaseCurrencyInfo {
    uint256 marketReferenceCurrencyUnit;
    int256 marketReferenceCurrencyPriceInUsd;
    int256 networkBaseTokenPriceInUsd;
    uint8 networkBaseTokenPriceDecimals;
  }

  function getReservesList(ILendingPoolAddressesProvider provider)
    external
    view
    returns (address[] memory);

  function getReservesData(ILendingPoolAddressesProvider provider)
    external
    view
    returns (
      AggregatedReserveData[] memory,
      BaseCurrencyInfo memory
    );

  function getUserReservesData(ILendingPoolAddressesProvider provider, address user)
    external
    view
    returns (
      UserReserveData[] memory
    );
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {SafeMath} from '../../dependencies/openzeppelin/contracts/SafeMath.sol';
import {IReserveInterestRateStrategy} from '../../interfaces/IReserveInterestRateStrategy.sol';
import {WadRayMath} from '../libraries/math/WadRayMath.sol';
import {PercentageMath} from '../libraries/math/PercentageMath.sol';
import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol';
import {ILendingRateOracle} from '../../interfaces/ILendingRateOracle.sol';
import {IERC20} from '../../dependencies/openzeppelin/contracts/IERC20.sol';

/**
 * @title DefaultReserveInterestRateStrategy contract
 * @notice Implements the calculation of the interest rates depending on the reserve state
 * @dev The model of interest rate is based on 2 slopes, one before the `OPTIMAL_UTILIZATION_RATE`
 * point of utilization and another from that one to 100%
 * - An instance of this same contract, can't be used across different Aave markets, due to the caching
 *   of the LendingPoolAddressesProvider
 * @author Aave
 **/
contract DefaultReserveInterestRateStrategy is IReserveInterestRateStrategy {
  using WadRayMath for uint256;
  using SafeMath for uint256;
  using PercentageMath for uint256;

  /**
   * @dev this constant represents the utilization rate at which the pool aims to obtain most competitive borrow rates.
   * Expressed in ray
   **/
  uint256 public immutable OPTIMAL_UTILIZATION_RATE;

  /**
   * @dev This constant represents the excess utilization rate above the optimal. It's always equal to
   * 1-optimal utilization rate. Added as a constant here for gas optimizations.
   * Expressed in ray
   **/

  uint256 public immutable EXCESS_UTILIZATION_RATE;

  ILendingPoolAddressesProvider public immutable addressesProvider;

  // Base variable borrow rate when Utilization rate = 0. Expressed in ray
  uint256 internal immutable _baseVariableBorrowRate;

  // Slope of the variable interest curve when utilization rate > 0 and <= OPTIMAL_UTILIZATION_RATE. Expressed in ray
  uint256 internal immutable _variableRateSlope1;

  // Slope of the variable interest curve when utilization rate > OPTIMAL_UTILIZATION_RATE. Expressed in ray
  uint256 internal immutable _variableRateSlope2;

  // Slope of the stable interest curve when utilization rate > 0 and <= OPTIMAL_UTILIZATION_RATE. Expressed in ray
  uint256 internal immutable _stableRateSlope1;

  // Slope of the stable interest curve when utilization rate > OPTIMAL_UTILIZATION_RATE. Expressed in ray
  uint256 internal immutable _stableRateSlope2;

  constructor(
    ILendingPoolAddressesProvider provider,
    uint256 optimalUtilizationRate,
    uint256 baseVariableBorrowRate,
    uint256 variableRateSlope1,
    uint256 variableRateSlope2,
    uint256 stableRateSlope1,
    uint256 stableRateSlope2
  ) public {
    OPTIMAL_UTILIZATION_RATE = optimalUtilizationRate;
    EXCESS_UTILIZATION_RATE = WadRayMath.ray().sub(optimalUtilizationRate);
    addressesProvider = provider;
    _baseVariableBorrowRate = baseVariableBorrowRate;
    _variableRateSlope1 = variableRateSlope1;
    _variableRateSlope2 = variableRateSlope2;
    _stableRateSlope1 = stableRateSlope1;
    _stableRateSlope2 = stableRateSlope2;
  }

  function variableRateSlope1() external view returns (uint256) {
    return _variableRateSlope1;
  }

  function variableRateSlope2() external view returns (uint256) {
    return _variableRateSlope2;
  }

  function stableRateSlope1() external view returns (uint256) {
    return _stableRateSlope1;
  }

  function stableRateSlope2() external view returns (uint256) {
    return _stableRateSlope2;
  }

  function baseVariableBorrowRate() external view override returns (uint256) {
    return _baseVariableBorrowRate;
  }

  function getMaxVariableBorrowRate() external view override returns (uint256) {
    return _baseVariableBorrowRate.add(_variableRateSlope1).add(_variableRateSlope2);
  }

  /**
   * @dev Calculates the interest rates depending on the reserve's state and configurations
   * @param reserve The address of the reserve
   * @param liquidityAdded The liquidity added during the operation
   * @param liquidityTaken The liquidity taken during the operation
   * @param totalStableDebt The total borrowed from the reserve a stable rate
   * @param totalVariableDebt The total borrowed from the reserve at a variable rate
   * @param averageStableBorrowRate The weighted average of all the stable rate loans
   * @param reserveFactor The reserve portion of the interest that goes to the treasury of the market
   * @return The liquidity rate, the stable borrow rate and the variable borrow rate
   **/
  function calculateInterestRates(
    address reserve,
    address aToken,
    uint256 liquidityAdded,
    uint256 liquidityTaken,
    uint256 totalStableDebt,
    uint256 totalVariableDebt,
    uint256 averageStableBorrowRate,
    uint256 reserveFactor
  )
    external
    override
    returns (
      uint256,
      uint256,
      uint256
    )
  {
    uint256 availableLiquidity = IERC20(reserve).balanceOf(aToken);
    //avoid stack too deep
    availableLiquidity = availableLiquidity.add(liquidityAdded).sub(liquidityTaken);

    return
      calculateInterestRates(
        reserve,
        availableLiquidity,
        totalStableDebt,
        totalVariableDebt,
        averageStableBorrowRate,
        reserveFactor
      );
  }

  struct CalcInterestRatesLocalVars {
    uint256 totalDebt;
    uint256 currentVariableBorrowRate;
    uint256 currentStableBorrowRate;
    uint256 currentLiquidityRate;
    uint256 utilizationRate;
  }

  /**
   * @dev Calculates the interest rates depending on the reserve's state and configurations.
   * NOTE This function is kept for compatibility with the previous DefaultInterestRateStrategy interface.
   * New protocol implementation uses the new calculateInterestRates() interface
   * @param reserve The address of the reserve
   * @param availableLiquidity The liquidity available in the corresponding aToken
   * @param totalStableDebt The total borrowed from the reserve a stable rate
   * @param totalVariableDebt The total borrowed from the reserve at a variable rate
   * @param averageStableBorrowRate The weighted average of all the stable rate loans
   * @param reserveFactor The reserve portion of the interest that goes to the treasury of the market
   * @return The liquidity rate, the stable borrow rate and the variable borrow rate
   **/
  function calculateInterestRates(
    address reserve,
    uint256 availableLiquidity,
    uint256 totalStableDebt,
    uint256 totalVariableDebt,
    uint256 averageStableBorrowRate,
    uint256 reserveFactor
  )
    public
    override
    returns (
      uint256,
      uint256,
      uint256
    )
  {
    CalcInterestRatesLocalVars memory vars;

    vars.totalDebt = totalStableDebt.add(totalVariableDebt);
    vars.currentVariableBorrowRate = 0;
    vars.currentStableBorrowRate = 0;
    vars.currentLiquidityRate = 0;

    vars.utilizationRate = vars.totalDebt == 0
      ? 0
      : vars.totalDebt.rayDiv(availableLiquidity.add(vars.totalDebt));

    vars.currentStableBorrowRate = ILendingRateOracle(addressesProvider.getLendingRateOracle())
      .getMarketBorrowRate(reserve);

    if (vars.utilizationRate > OPTIMAL_UTILIZATION_RATE) {
      uint256 excessUtilizationRateRatio =
        vars.utilizationRate.sub(OPTIMAL_UTILIZATION_RATE).rayDiv(EXCESS_UTILIZATION_RATE);

      vars.currentStableBorrowRate = vars.currentStableBorrowRate.add(_stableRateSlope1).add(
        _stableRateSlope2.rayMul(excessUtilizationRateRatio)
      );

      vars.currentVariableBorrowRate = _baseVariableBorrowRate.add(_variableRateSlope1).add(
        _variableRateSlope2.rayMul(excessUtilizationRateRatio)
      );
    } else {
      vars.currentStableBorrowRate = vars.currentStableBorrowRate.add(
        _stableRateSlope1.rayMul(vars.utilizationRate.rayDiv(OPTIMAL_UTILIZATION_RATE))
      );
      vars.currentVariableBorrowRate = _baseVariableBorrowRate.add(
        vars.utilizationRate.rayMul(_variableRateSlope1).rayDiv(OPTIMAL_UTILIZATION_RATE)
      );
    }

    vars.currentLiquidityRate = _getOverallBorrowRate(
      totalStableDebt,
      totalVariableDebt,
      vars
        .currentVariableBorrowRate,
      averageStableBorrowRate
    )
      .rayMul(vars.utilizationRate)
      .percentMul(PercentageMath.PERCENTAGE_FACTOR.sub(reserveFactor));

    return (
      vars.currentLiquidityRate,
      vars.currentStableBorrowRate,
      vars.currentVariableBorrowRate
    );
  }

  /**
   * @dev Calculates the overall borrow rate as the weighted average between the total variable debt and total stable debt
   * @param totalStableDebt The total borrowed from the reserve a stable rate
   * @param totalVariableDebt The total borrowed from the reserve at a variable rate
   * @param currentVariableBorrowRate The current variable borrow rate of the reserve
   * @param currentAverageStableBorrowRate The current weighted average of all the stable rate loans
   * @return The weighted averaged borrow rate
   **/
  function _getOverallBorrowRate(
    uint256 totalStableDebt,
    uint256 totalVariableDebt,
    uint256 currentVariableBorrowRate,
    uint256 currentAverageStableBorrowRate
  ) internal pure returns (uint256) {
    uint256 totalDebt = totalStableDebt.add(totalVariableDebt);

    if (totalDebt == 0) return 0;

    uint256 weightedVariableRate = totalVariableDebt.wadToRay().rayMul(currentVariableBorrowRate);

    uint256 weightedStableRate = totalStableDebt.wadToRay().rayMul(currentAverageStableBorrowRate);

    uint256 overallBorrowRate =
      weightedVariableRate.add(weightedStableRate).rayDiv(totalDebt.wadToRay());

    return overallBorrowRate;
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {Errors} from '../helpers/Errors.sol';
import {DataTypes} from '../types/DataTypes.sol';

/**
 * @title ReserveConfiguration library
 * @author Aave
 * @notice Implements the bitmap logic to handle the reserve configuration
 */
library ReserveConfiguration {
  uint256 constant LTV_MASK =                   0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000; // prettier-ignore
  uint256 constant LIQUIDATION_THRESHOLD_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFF; // prettier-ignore
  uint256 constant LIQUIDATION_BONUS_MASK =     0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFF; // prettier-ignore
  uint256 constant DECIMALS_MASK =              0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FFFFFFFFFFFF; // prettier-ignore
  uint256 constant ACTIVE_MASK =                0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFF; // prettier-ignore
  uint256 constant FROZEN_MASK =                0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDFFFFFFFFFFFFFF; // prettier-ignore
  uint256 constant BORROWING_MASK =             0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFF; // prettier-ignore
  uint256 constant STABLE_BORROWING_MASK =      0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFFFFF; // prettier-ignore
  uint256 constant RESERVE_FACTOR_MASK =        0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFFFFFFFFFF; // prettier-ignore

  /// @dev For the LTV, the start bit is 0 (up to 15), hence no bitshifting is needed
  uint256 constant LIQUIDATION_THRESHOLD_START_BIT_POSITION = 16;
  uint256 constant LIQUIDATION_BONUS_START_BIT_POSITION = 32;
  uint256 constant RESERVE_DECIMALS_START_BIT_POSITION = 48;
  uint256 constant IS_ACTIVE_START_BIT_POSITION = 56;
  uint256 constant IS_FROZEN_START_BIT_POSITION = 57;
  uint256 constant BORROWING_ENABLED_START_BIT_POSITION = 58;
  uint256 constant STABLE_BORROWING_ENABLED_START_BIT_POSITION = 59;
  uint256 constant RESERVE_FACTOR_START_BIT_POSITION = 64;

  uint256 constant MAX_VALID_LTV = 65535;
  uint256 constant MAX_VALID_LIQUIDATION_THRESHOLD = 65535;
  uint256 constant MAX_VALID_LIQUIDATION_BONUS = 65535;
  uint256 constant MAX_VALID_DECIMALS = 255;
  uint256 constant MAX_VALID_RESERVE_FACTOR = 65535;

  /**
   * @dev Sets the Loan to Value of the reserve
   * @param self The reserve configuration
   * @param ltv the new ltv
   **/
  function setLtv(DataTypes.ReserveConfigurationMap memory self, uint256 ltv) internal pure {
    require(ltv <= MAX_VALID_LTV, Errors.RC_INVALID_LTV);

    self.data = (self.data & LTV_MASK) | ltv;
  }

  /**
   * @dev Gets the Loan to Value of the reserve
   * @param self The reserve configuration
   * @return The loan to value
   **/
  function getLtv(DataTypes.ReserveConfigurationMap storage self) internal view returns (uint256) {
    return self.data & ~LTV_MASK;
  }

  /**
   * @dev Sets the liquidation threshold of the reserve
   * @param self The reserve configuration
   * @param threshold The new liquidation threshold
   **/
  function setLiquidationThreshold(DataTypes.ReserveConfigurationMap memory self, uint256 threshold)
    internal
    pure
  {
    require(threshold <= MAX_VALID_LIQUIDATION_THRESHOLD, Errors.RC_INVALID_LIQ_THRESHOLD);

    self.data =
      (self.data & LIQUIDATION_THRESHOLD_MASK) |
      (threshold << LIQUIDATION_THRESHOLD_START_BIT_POSITION);
  }

  /**
   * @dev Gets the liquidation threshold of the reserve
   * @param self The reserve configuration
   * @return The liquidation threshold
   **/
  function getLiquidationThreshold(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (uint256)
  {
    return (self.data & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION;
  }

  /**
   * @dev Sets the liquidation bonus of the reserve
   * @param self The reserve configuration
   * @param bonus The new liquidation bonus
   **/
  function setLiquidationBonus(DataTypes.ReserveConfigurationMap memory self, uint256 bonus)
    internal
    pure
  {
    require(bonus <= MAX_VALID_LIQUIDATION_BONUS, Errors.RC_INVALID_LIQ_BONUS);

    self.data =
      (self.data & LIQUIDATION_BONUS_MASK) |
      (bonus << LIQUIDATION_BONUS_START_BIT_POSITION);
  }

  /**
   * @dev Gets the liquidation bonus of the reserve
   * @param self The reserve configuration
   * @return The liquidation bonus
   **/
  function getLiquidationBonus(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (uint256)
  {
    return (self.data & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION;
  }

  /**
   * @dev Sets the decimals of the underlying asset of the reserve
   * @param self The reserve configuration
   * @param decimals The decimals
   **/
  function setDecimals(DataTypes.ReserveConfigurationMap memory self, uint256 decimals)
    internal
    pure
  {
    require(decimals <= MAX_VALID_DECIMALS, Errors.RC_INVALID_DECIMALS);

    self.data = (self.data & DECIMALS_MASK) | (decimals << RESERVE_DECIMALS_START_BIT_POSITION);
  }

  /**
   * @dev Gets the decimals of the underlying asset of the reserve
   * @param self The reserve configuration
   * @return The decimals of the asset
   **/
  function getDecimals(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (uint256)
  {
    return (self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION;
  }

  /**
   * @dev Sets the active state of the reserve
   * @param self The reserve configuration
   * @param active The active state
   **/
  function setActive(DataTypes.ReserveConfigurationMap memory self, bool active) internal pure {
    self.data =
      (self.data & ACTIVE_MASK) |
      (uint256(active ? 1 : 0) << IS_ACTIVE_START_BIT_POSITION);
  }

  /**
   * @dev Gets the active state of the reserve
   * @param self The reserve configuration
   * @return The active state
   **/
  function getActive(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) {
    return (self.data & ~ACTIVE_MASK) != 0;
  }

  /**
   * @dev Sets the frozen state of the reserve
   * @param self The reserve configuration
   * @param frozen The frozen state
   **/
  function setFrozen(DataTypes.ReserveConfigurationMap memory self, bool frozen) internal pure {
    self.data =
      (self.data & FROZEN_MASK) |
      (uint256(frozen ? 1 : 0) << IS_FROZEN_START_BIT_POSITION);
  }

  /**
   * @dev Gets the frozen state of the reserve
   * @param self The reserve configuration
   * @return The frozen state
   **/
  function getFrozen(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) {
    return (self.data & ~FROZEN_MASK) != 0;
  }

  /**
   * @dev Enables or disables borrowing on the reserve
   * @param self The reserve configuration
   * @param enabled True if the borrowing needs to be enabled, false otherwise
   **/
  function setBorrowingEnabled(DataTypes.ReserveConfigurationMap memory self, bool enabled)
    internal
    pure
  {
    self.data =
      (self.data & BORROWING_MASK) |
      (uint256(enabled ? 1 : 0) << BORROWING_ENABLED_START_BIT_POSITION);
  }

  /**
   * @dev Gets the borrowing state of the reserve
   * @param self The reserve configuration
   * @return The borrowing state
   **/
  function getBorrowingEnabled(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (bool)
  {
    return (self.data & ~BORROWING_MASK) != 0;
  }

  /**
   * @dev Enables or disables stable rate borrowing on the reserve
   * @param self The reserve configuration
   * @param enabled True if the stable rate borrowing needs to be enabled, false otherwise
   **/
  function setStableRateBorrowingEnabled(
    DataTypes.ReserveConfigurationMap memory self,
    bool enabled
  ) internal pure {
    self.data =
      (self.data & STABLE_BORROWING_MASK) |
      (uint256(enabled ? 1 : 0) << STABLE_BORROWING_ENABLED_START_BIT_POSITION);
  }

  /**
   * @dev Gets the stable rate borrowing state of the reserve
   * @param self The reserve configuration
   * @return The stable rate borrowing state
   **/
  function getStableRateBorrowingEnabled(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (bool)
  {
    return (self.data & ~STABLE_BORROWING_MASK) != 0;
  }

  /**
   * @dev Sets the reserve factor of the reserve
   * @param self The reserve configuration
   * @param reserveFactor The reserve factor
   **/
  function setReserveFactor(DataTypes.ReserveConfigurationMap memory self, uint256 reserveFactor)
    internal
    pure
  {
    require(reserveFactor <= MAX_VALID_RESERVE_FACTOR, Errors.RC_INVALID_RESERVE_FACTOR);

    self.data =
      (self.data & RESERVE_FACTOR_MASK) |
      (reserveFactor << RESERVE_FACTOR_START_BIT_POSITION);
  }

  /**
   * @dev Gets the reserve factor of the reserve
   * @param self The reserve configuration
   * @return The reserve factor
   **/
  function getReserveFactor(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (uint256)
  {
    return (self.data & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION;
  }

  /**
   * @dev Gets the configuration flags of the reserve
   * @param self The reserve configuration
   * @return The state flags representing active, frozen, borrowing enabled, stableRateBorrowing enabled
   **/
  function getFlags(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (
      bool,
      bool,
      bool,
      bool
    )
  {
    uint256 dataLocal = self.data;

    return (
      (dataLocal & ~ACTIVE_MASK) != 0,
      (dataLocal & ~FROZEN_MASK) != 0,
      (dataLocal & ~BORROWING_MASK) != 0,
      (dataLocal & ~STABLE_BORROWING_MASK) != 0
    );
  }

  /**
   * @dev Gets the configuration paramters of the reserve
   * @param self The reserve configuration
   * @return The state params representing ltv, liquidation threshold, liquidation bonus, the reserve decimals
   **/
  function getParams(DataTypes.ReserveConfigurationMap storage self)
    internal
    view
    returns (
      uint256,
      uint256,
      uint256,
      uint256,
      uint256
    )
  {
    uint256 dataLocal = self.data;

    return (
      dataLocal & ~LTV_MASK,
      (dataLocal & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION,
      (dataLocal & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION,
      (dataLocal & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION,
      (dataLocal & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION
    );
  }

  /**
   * @dev Gets the configuration paramters of the reserve from a memory object
   * @param self The reserve configuration
   * @return The state params representing ltv, liquidation threshold, liquidation bonus, the reserve decimals
   **/
  function getParamsMemory(DataTypes.ReserveConfigurationMap memory self)
    internal
    pure
    returns (
      uint256,
      uint256,
      uint256,
      uint256,
      uint256
    )
  {
    return (
      self.data & ~LTV_MASK,
      (self.data & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION,
      (self.data & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION,
      (self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION,
      (self.data & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION
    );
  }

  /**
   * @dev Gets the configuration flags of the reserve from a memory object
   * @param self The reserve configuration
   * @return The state flags representing active, frozen, borrowing enabled, stableRateBorrowing enabled
   **/
  function getFlagsMemory(DataTypes.ReserveConfigurationMap memory self)
    internal
    pure
    returns (
      bool,
      bool,
      bool,
      bool
    )
  {
    return (
      (self.data & ~ACTIVE_MASK) != 0,
      (self.data & ~FROZEN_MASK) != 0,
      (self.data & ~BORROWING_MASK) != 0,
      (self.data & ~STABLE_BORROWING_MASK) != 0
    );
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {Errors} from '../helpers/Errors.sol';
import {DataTypes} from '../types/DataTypes.sol';

/**
 * @title UserConfiguration library
 * @author Aave
 * @notice Implements the bitmap logic to handle the user configuration
 */
library UserConfiguration {
  uint256 internal constant BORROWING_MASK =
    0x5555555555555555555555555555555555555555555555555555555555555555;

  /**
   * @dev Sets if the user is borrowing the reserve identified by reserveIndex
   * @param self The configuration object
   * @param reserveIndex The index of the reserve in the bitmap
   * @param borrowing True if the user is borrowing the reserve, false otherwise
   **/
  function setBorrowing(
    DataTypes.UserConfigurationMap storage self,
    uint256 reserveIndex,
    bool borrowing
  ) internal {
    require(reserveIndex < 128, Errors.UL_INVALID_INDEX);
    self.data =
      (self.data & ~(1 << (reserveIndex * 2))) |
      (uint256(borrowing ? 1 : 0) << (reserveIndex * 2));
  }

  /**
   * @dev Sets if the user is using as collateral the reserve identified by reserveIndex
   * @param self The configuration object
   * @param reserveIndex The index of the reserve in the bitmap
   * @param usingAsCollateral True if the user is usin the reserve as collateral, false otherwise
   **/
  function setUsingAsCollateral(
    DataTypes.UserConfigurationMap storage self,
    uint256 reserveIndex,
    bool usingAsCollateral
  ) internal {
    require(reserveIndex < 128, Errors.UL_INVALID_INDEX);
    self.data =
      (self.data & ~(1 << (reserveIndex * 2 + 1))) |
      (uint256(usingAsCollateral ? 1 : 0) << (reserveIndex * 2 + 1));
  }

  /**
   * @dev Used to validate if a user has been using the reserve for borrowing or as collateral
   * @param self The configuration object
   * @param reserveIndex The index of the reserve in the bitmap
   * @return True if the user has been using a reserve for borrowing or as collateral, false otherwise
   **/
  function isUsingAsCollateralOrBorrowing(
    DataTypes.UserConfigurationMap memory self,
    uint256 reserveIndex
  ) internal pure returns (bool) {
    require(reserveIndex < 128, Errors.UL_INVALID_INDEX);
    return (self.data >> (reserveIndex * 2)) & 3 != 0;
  }

  /**
   * @dev Used to validate if a user has been using the reserve for borrowing
   * @param self The configuration object
   * @param reserveIndex The index of the reserve in the bitmap
   * @return True if the user has been using a reserve for borrowing, false otherwise
   **/
  function isBorrowing(DataTypes.UserConfigurationMap memory self, uint256 reserveIndex)
    internal
    pure
    returns (bool)
  {
    require(reserveIndex < 128, Errors.UL_INVALID_INDEX);
    return (self.data >> (reserveIndex * 2)) & 1 != 0;
  }

  /**
   * @dev Used to validate if a user has been using the reserve as collateral
   * @param self The configuration object
   * @param reserveIndex The index of the reserve in the bitmap
   * @return True if the user has been using a reserve as collateral, false otherwise
   **/
  function isUsingAsCollateral(DataTypes.UserConfigurationMap memory self, uint256 reserveIndex)
    internal
    pure
    returns (bool)
  {
    require(reserveIndex < 128, Errors.UL_INVALID_INDEX);
    return (self.data >> (reserveIndex * 2 + 1)) & 1 != 0;
  }

  /**
   * @dev Used to validate if a user has been borrowing from any reserve
   * @param self The configuration object
   * @return True if the user has been borrowing any reserve, false otherwise
   **/
  function isBorrowingAny(DataTypes.UserConfigurationMap memory self) internal pure returns (bool) {
    return self.data & BORROWING_MASK != 0;
  }

  /**
   * @dev Used to validate if a user has not been using any reserve
   * @param self The configuration object
   * @return True if the user has been borrowing any reserve, false otherwise
   **/
  function isEmpty(DataTypes.UserConfigurationMap memory self) internal pure returns (bool) {
    return self.data == 0;
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @title Errors library
 * @author Aave
 * @notice Defines the error messages emitted by the different contracts of the Aave protocol
 * @dev Error messages prefix glossary:
 *  - VL = ValidationLogic
 *  - MATH = Math libraries
 *  - CT = Common errors between tokens (AToken, VariableDebtToken and StableDebtToken)
 *  - AT = AToken
 *  - SDT = StableDebtToken
 *  - VDT = VariableDebtToken
 *  - LP = LendingPool
 *  - LPAPR = LendingPoolAddressesProviderRegistry
 *  - LPC = LendingPoolConfiguration
 *  - RL = ReserveLogic
 *  - LPCM = LendingPoolCollateralManager
 *  - P = Pausable
 */
library Errors {
  //common errors
  string public constant CALLER_NOT_POOL_ADMIN = '33'; // 'The caller must be the pool admin'
  string public constant BORROW_ALLOWANCE_NOT_ENOUGH = '59'; // User borrows on behalf, but allowance are too small

  //contract specific errors
  string public constant VL_INVALID_AMOUNT = '1'; // 'Amount must be greater than 0'
  string public constant VL_NO_ACTIVE_RESERVE = '2'; // 'Action requires an active reserve'
  string public constant VL_RESERVE_FROZEN = '3'; // 'Action cannot be performed because the reserve is frozen'
  string public constant VL_CURRENT_AVAILABLE_LIQUIDITY_NOT_ENOUGH = '4'; // 'The current liquidity is not enough'
  string public constant VL_NOT_ENOUGH_AVAILABLE_USER_BALANCE = '5'; // 'User cannot withdraw more than the available balance'
  string public constant VL_TRANSFER_NOT_ALLOWED = '6'; // 'Transfer cannot be allowed.'
  string public constant VL_BORROWING_NOT_ENABLED = '7'; // 'Borrowing is not enabled'
  string public constant VL_INVALID_INTEREST_RATE_MODE_SELECTED = '8'; // 'Invalid interest rate mode selected'
  string public constant VL_COLLATERAL_BALANCE_IS_0 = '9'; // 'The collateral balance is 0'
  string public constant VL_HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD = '10'; // 'Health factor is lesser than the liquidation threshold'
  string public constant VL_COLLATERAL_CANNOT_COVER_NEW_BORROW = '11'; // 'There is not enough collateral to cover a new borrow'
  string public constant VL_STABLE_BORROWING_NOT_ENABLED = '12'; // stable borrowing not enabled
  string public constant VL_COLLATERAL_SAME_AS_BORROWING_CURRENCY = '13'; // collateral is (mostly) the same currency that is being borrowed
  string public constant VL_AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = '14'; // 'The requested amount is greater than the max loan size in stable rate mode
  string public constant VL_NO_DEBT_OF_SELECTED_TYPE = '15'; // 'for repayment of stable debt, the user needs to have stable debt, otherwise, he needs to have variable debt'
  string public constant VL_NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = '16'; // 'To repay on behalf of an user an explicit amount to repay is needed'
  string public constant VL_NO_STABLE_RATE_LOAN_IN_RESERVE = '17'; // 'User does not have a stable rate loan in progress on this reserve'
  string public constant VL_NO_VARIABLE_RATE_LOAN_IN_RESERVE = '18'; // 'User does not have a variable rate loan in progress on this reserve'
  string public constant VL_UNDERLYING_BALANCE_NOT_GREATER_THAN_0 = '19'; // 'The underlying balance needs to be greater than 0'
  string public constant VL_DEPOSIT_ALREADY_IN_USE = '20'; // 'User deposit is already being used as collateral'
  string public constant LP_NOT_ENOUGH_STABLE_BORROW_BALANCE = '21'; // 'User does not have any stable rate loan for this reserve'
  string public constant LP_INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = '22'; // 'Interest rate rebalance conditions were not met'
  string public constant LP_LIQUIDATION_CALL_FAILED = '23'; // 'Liquidation call failed'
  string public constant LP_NOT_ENOUGH_LIQUIDITY_TO_BORROW = '24'; // 'There is not enough liquidity available to borrow'
  string public constant LP_REQUESTED_AMOUNT_TOO_SMALL = '25'; // 'The requested amount is too small for a FlashLoan.'
  string public constant LP_INCONSISTENT_PROTOCOL_ACTUAL_BALANCE = '26'; // 'The actual balance of the protocol is inconsistent'
  string public constant LP_CALLER_NOT_LENDING_POOL_CONFIGURATOR = '27'; // 'The caller of the function is not the lending pool configurator'
  string public constant LP_INCONSISTENT_FLASHLOAN_PARAMS = '28';
  string public constant CT_CALLER_MUST_BE_LENDING_POOL = '29'; // 'The caller of this function must be a lending pool'
  string public constant CT_CANNOT_GIVE_ALLOWANCE_TO_HIMSELF = '30'; // 'User cannot give allowance to himself'
  string public constant CT_TRANSFER_AMOUNT_NOT_GT_0 = '31'; // 'Transferred amount needs to be greater than zero'
  string public constant RL_RESERVE_ALREADY_INITIALIZED = '32'; // 'Reserve has already been initialized'
  string public constant LPC_RESERVE_LIQUIDITY_NOT_0 = '34'; // 'The liquidity of the reserve needs to be 0'
  string public constant LPC_INVALID_ATOKEN_POOL_ADDRESS = '35'; // 'The liquidity of the reserve needs to be 0'
  string public constant LPC_INVALID_STABLE_DEBT_TOKEN_POOL_ADDRESS = '36'; // 'The liquidity of the reserve needs to be 0'
  string public constant LPC_INVALID_VARIABLE_DEBT_TOKEN_POOL_ADDRESS = '37'; // 'The liquidity of the reserve needs to be 0'
  string public constant LPC_INVALID_STABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '38'; // 'The liquidity of the reserve needs to be 0'
  string public constant LPC_INVALID_VARIABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '39'; // 'The liquidity of the reserve needs to be 0'
  string public constant LPC_INVALID_ADDRESSES_PROVIDER_ID = '40'; // 'The liquidity of the reserve needs to be 0'
  string public constant LPC_INVALID_CONFIGURATION = '75'; // 'Invalid risk parameters for the reserve'
  string public constant LPC_CALLER_NOT_EMERGENCY_ADMIN = '76'; // 'The caller must be the emergency admin'
  string public constant LPAPR_PROVIDER_NOT_REGISTERED = '41'; // 'Provider is not registered'
  string public constant LPCM_HEALTH_FACTOR_NOT_BELOW_THRESHOLD = '42'; // 'Health factor is not below the threshold'
  string public constant LPCM_COLLATERAL_CANNOT_BE_LIQUIDATED = '43'; // 'The collateral chosen cannot be liquidated'
  string public constant LPCM_SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = '44'; // 'User did not borrow the specified currency'
  string public constant LPCM_NOT_ENOUGH_LIQUIDITY_TO_LIQUIDATE = '45'; // "There isn't enough liquidity available to liquidate"
  string public constant LPCM_NO_ERRORS = '46'; // 'No errors'
  string public constant LP_INVALID_FLASHLOAN_MODE = '47'; //Invalid flashloan mode selected
  string public constant MATH_MULTIPLICATION_OVERFLOW = '48';
  string public constant MATH_ADDITION_OVERFLOW = '49';
  string public constant MATH_DIVISION_BY_ZERO = '50';
  string public constant RL_LIQUIDITY_INDEX_OVERFLOW = '51'; //  Liquidity index overflows uint128
  string public constant RL_VARIABLE_BORROW_INDEX_OVERFLOW = '52'; //  Variable borrow index overflows uint128
  string public constant RL_LIQUIDITY_RATE_OVERFLOW = '53'; //  Liquidity rate overflows uint128
  string public constant RL_VARIABLE_BORROW_RATE_OVERFLOW = '54'; //  Variable borrow rate overflows uint128
  string public constant RL_STABLE_BORROW_RATE_OVERFLOW = '55'; //  Stable borrow rate overflows uint128
  string public constant CT_INVALID_MINT_AMOUNT = '56'; //invalid amount to mint
  string public constant LP_FAILED_REPAY_WITH_COLLATERAL = '57';
  string public constant CT_INVALID_BURN_AMOUNT = '58'; //invalid amount to burn
  string public constant LP_FAILED_COLLATERAL_SWAP = '60';
  string public constant LP_INVALID_EQUAL_ASSETS_TO_SWAP = '61';
  string public constant LP_REENTRANCY_NOT_ALLOWED = '62';
  string public constant LP_CALLER_MUST_BE_AN_ATOKEN = '63';
  string public constant LP_IS_PAUSED = '64'; // 'Pool is paused'
  string public constant LP_NO_MORE_RESERVES_ALLOWED = '65';
  string public constant LP_INVALID_FLASH_LOAN_EXECUTOR_RETURN = '66';
  string public constant RC_INVALID_LTV = '67';
  string public constant RC_INVALID_LIQ_THRESHOLD = '68';
  string public constant RC_INVALID_LIQ_BONUS = '69';
  string public constant RC_INVALID_DECIMALS = '70';
  string public constant RC_INVALID_RESERVE_FACTOR = '71';
  string public constant LPAPR_INVALID_ADDRESSES_PROVIDER_ID = '72';
  string public constant VL_INCONSISTENT_FLASHLOAN_PARAMS = '73';
  string public constant LP_INCONSISTENT_PARAMS_LENGTH = '74';
  string public constant UL_INVALID_INDEX = '77';
  string public constant LP_NOT_CONTRACT = '78';
  string public constant SDT_STABLE_DEBT_OVERFLOW = '79';
  string public constant SDT_BURN_EXCEEDS_BALANCE = '80';

  enum CollateralManagerErrors {
    NO_ERROR,
    NO_COLLATERAL_AVAILABLE,
    COLLATERAL_CANNOT_BE_LIQUIDATED,
    CURRRENCY_NOT_BORROWED,
    HEALTH_FACTOR_ABOVE_THRESHOLD,
    NOT_ENOUGH_LIQUIDITY,
    NO_ACTIVE_RESERVE,
    HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD,
    INVALID_EQUAL_ASSETS_TO_SWAP,
    FROZEN_RESERVE
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {Errors} from '../helpers/Errors.sol';

/**
 * @title PercentageMath library
 * @author Aave
 * @notice Provides functions to perform percentage calculations
 * @dev Percentages are defined by default with 2 decimals of precision (100.00). The precision is indicated by PERCENTAGE_FACTOR
 * @dev Operations are rounded half up
 **/

library PercentageMath {
  uint256 constant PERCENTAGE_FACTOR = 1e4; //percentage plus two decimals
  uint256 constant HALF_PERCENT = PERCENTAGE_FACTOR / 2;

  /**
   * @dev Executes a percentage multiplication
   * @param value The value of which the percentage needs to be calculated
   * @param percentage The percentage of the value to be calculated
   * @return The percentage of value
   **/
  function percentMul(uint256 value, uint256 percentage) internal pure returns (uint256) {
    if (value == 0 || percentage == 0) {
      return 0;
    }

    require(
      value <= (type(uint256).max - HALF_PERCENT) / percentage,
      Errors.MATH_MULTIPLICATION_OVERFLOW
    );

    return (value * percentage + HALF_PERCENT) / PERCENTAGE_FACTOR;
  }

  /**
   * @dev Executes a percentage division
   * @param value The value of which the percentage needs to be calculated
   * @param percentage The percentage of the value to be calculated
   * @return The value divided the percentage
   **/
  function percentDiv(uint256 value, uint256 percentage) internal pure returns (uint256) {
    require(percentage != 0, Errors.MATH_DIVISION_BY_ZERO);
    uint256 halfPercentage = percentage / 2;

    require(
      value <= (type(uint256).max - halfPercentage) / PERCENTAGE_FACTOR,
      Errors.MATH_MULTIPLICATION_OVERFLOW
    );

    return (value * PERCENTAGE_FACTOR + halfPercentage) / percentage;
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {Errors} from '../helpers/Errors.sol';
import {SignedSafeMath} from '../../../dependencies/openzeppelin/contracts/SignedSafeMath.sol';

/**
 * @title WadRayMath library
 * @author Aave
 * @dev Provides mul and div function for wads (decimal numbers with 18 digits precision) and rays (decimals with 27 digits)
 **/

library WadRayMath {
  using SignedSafeMath for int256;

  uint256 internal constant WAD = 1e18;
  uint256 internal constant halfWAD = WAD / 2;

  uint256 internal constant RAY = 1e27;
  uint256 internal constant halfRAY = RAY / 2;

  int256 internal constant RAYint = 1e27;
  int256 internal constant halfRAYint = RAYint / 2;

  uint256 internal constant WAD_RAY_RATIO = 1e9;
  int256 public constant MIN_INT256 = -2**255;
  int256 public constant MAX_INT256 = 2**255-1;

  /**
   * @return One ray, 1e27
   **/
  function ray() internal pure returns (uint256) {
    return RAY;
  }

  /**
   * @return One wad, 1e18
   **/

  function wad() internal pure returns (uint256) {
    return WAD;
  }

  /**
   * @return Half ray, 1e27/2
   **/
  function halfRay() internal pure returns (uint256) {
    return halfRAY;
  }

  /**
   * @return Half ray, 1e18/2
   **/
  function halfWad() internal pure returns (uint256) {
    return halfWAD;
  }

  /**
   * @dev Multiplies two wad, rounding half up to the nearest wad
   * @param a Wad
   * @param b Wad
   * @return The result of a*b, in wad
   **/
  function wadMul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0 || b == 0) {
      return 0;
    }

    require(a <= (type(uint256).max - halfWAD) / b, Errors.MATH_MULTIPLICATION_OVERFLOW);

    return (a * b + halfWAD) / WAD;
  }

  /**
   * @dev Divides two wad, rounding half up to the nearest wad
   * @param a Wad
   * @param b Wad
   * @return The result of a/b, in wad
   **/
  function wadDiv(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b != 0, Errors.MATH_DIVISION_BY_ZERO);
    uint256 halfB = b / 2;

    require(a <= (type(uint256).max - halfB) / WAD, Errors.MATH_MULTIPLICATION_OVERFLOW);

    return (a * WAD + halfB) / b;
  }

  /**
   * @dev Multiplies two ray, rounding half up to the nearest ray
   * @param a Ray
   * @param b Ray
   * @return The result of a*b, in ray
   **/
  function rayMul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0 || b == 0) {
      return 0;
    }

    require(a <= (type(uint256).max - halfRAY) / b, Errors.MATH_MULTIPLICATION_OVERFLOW);

    return (a * b + halfRAY) / RAY;
  }

  /**
   * @dev Divides two ray, rounding half up to the nearest ray
   * @param a Ray
   * @param b Ray
   * @return The result of a/b, in ray
   **/
  function rayDiv(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b != 0, Errors.MATH_DIVISION_BY_ZERO);
    uint256 halfB = b / 2;

    require(a <= (type(uint256).max - halfB) / RAY, Errors.MATH_MULTIPLICATION_OVERFLOW);

    return (a * RAY + halfB) / b;
  }

  /**
   * @dev Casts ray down to wad
   * @param a Ray
   * @return a casted to wad, rounded half up to the nearest wad
   **/
  function rayToWad(uint256 a) internal pure returns (uint256) {
    uint256 halfRatio = WAD_RAY_RATIO / 2;
    uint256 result = halfRatio + a;
    require(result >= halfRatio, Errors.MATH_ADDITION_OVERFLOW);

    return result / WAD_RAY_RATIO;
  }

  /**
   * @dev Converts wad up to ray
   * @param a Wad
   * @return a converted in ray
   **/
  function wadToRay(uint256 a) internal pure returns (uint256) {
    uint256 result = a * WAD_RAY_RATIO;
    require(result / WAD_RAY_RATIO == a, Errors.MATH_MULTIPLICATION_OVERFLOW);
    return result;
  }

    // ------- int -------

  /**
   * @dev Multiplies two ray int, rounding half up to the nearest ray.
   * If `result` > 0 round up, if `result` < 0 round down.
   * @param a Ray int
   * @param b Ray int
   * @return result The result of a*b, in ray
   **/
  function rayMulInt(int256 a, int256 b) internal pure returns (int256) {
    int256 rawMul = a.mul(b);
    
    if (rawMul < 0) {
        return (rawMul.sub(halfRAYint)).div(RAYint);
    } else if (rawMul > 0) {
        return (rawMul.add(halfRAYint)).div(RAYint);
    } else { // if (a == 0 || b == 0)
      return 0;
    }
  }

  /**
   * @dev Divides two ray, rounding half up to the nearest ray
   * If `result` > 0 round up, if `result` < 0 round down.
   * @param a Ray int
   * @param b Ray int
   * @return The result of a/b, in ray
   **/
  function rayDivInt(int256 a, int256 b) internal pure returns (int256) {
    require(b != 0, Errors.MATH_DIVISION_BY_ZERO);
    int256 halfB = b / 2;

    if (a >= 0 && b > 0 || a <= 0 && b < 0) {
      return ((a.mul(RAYint)).add(halfB)).div(b);
    } else {
      return ((a.mul(RAYint)).sub(halfB)).div(b);
    }
  }

  /**
   * @dev `base` to the power of `exponent`, using rayMulInt and a for loop.
   * @param base Ray int
   * @param exponent power exponent, not ray
   * @return result The result of base**exponent, in ray
   **/
  function rayPowerInt(int256 base, uint256 exponent) internal pure returns (int256) {
    if (exponent == 0) {
        return 1;
    }
    int256 result = base;
    for (uint256 i = 1; i < exponent; i++) {
        result = rayMulInt(result, base);
    }
    return result;
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

library DataTypes {
  // refer to the whitepaper, section 1.1 basic concepts for a formal description of these properties.
  struct ReserveData {
    //stores the reserve configuration
    ReserveConfigurationMap configuration;
    //the liquidity index. Expressed in ray
    uint128 liquidityIndex;
    //variable borrow index. Expressed in ray
    uint128 variableBorrowIndex;
    //the current supply rate. Expressed in ray
    uint128 currentLiquidityRate;
    //the current variable borrow rate. Expressed in ray
    uint128 currentVariableBorrowRate;
    //the current stable borrow rate. Expressed in ray
    uint128 currentStableBorrowRate;
    uint40 lastUpdateTimestamp;
    //tokens addresses
    address aTokenAddress;
    address stableDebtTokenAddress;
    address variableDebtTokenAddress;
    //address of the interest rate strategy
    address interestRateStrategyAddress;
    //the id of the reserve. Represents the position in the list of the active reserves
    uint8 id;
  }

  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: stable rate borrowing enabled
    //bit 60-63: reserved
    //bit 64-79: reserve factor
    uint256 data;
  }

  struct UserConfigurationMap {
    uint256 data;
  }

  enum InterestRateMode {NONE, STABLE, VARIABLE}
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IChainlinkAggregator","name":"_networkBaseTokenPriceInUsdProxyAggregator","type":"address"},{"internalType":"contract IChainlinkAggregator","name":"_marketReferenceCurrencyPriceInUsdProxyAggregator","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ETH_CURRENCY_UNIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MKRAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_bytes32","type":"bytes32"}],"name":"bytes32ToString","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"contract ILendingPoolAddressesProvider","name":"provider","type":"address"}],"name":"getReservesData","outputs":[{"components":[{"internalType":"address","name":"underlyingAsset","type":"address"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"uint256","name":"decimals","type":"uint256"},{"internalType":"uint256","name":"baseLTVasCollateral","type":"uint256"},{"internalType":"uint256","name":"reserveLiquidationThreshold","type":"uint256"},{"internalType":"uint256","name":"reserveLiquidationBonus","type":"uint256"},{"internalType":"uint256","name":"reserveFactor","type":"uint256"},{"internalType":"bool","name":"usageAsCollateralEnabled","type":"bool"},{"internalType":"bool","name":"borrowingEnabled","type":"bool"},{"internalType":"bool","name":"stableBorrowRateEnabled","type":"bool"},{"internalType":"bool","name":"isActive","type":"bool"},{"internalType":"bool","name":"isFrozen","type":"bool"},{"internalType":"uint128","name":"liquidityIndex","type":"uint128"},{"internalType":"uint128","name":"variableBorrowIndex","type":"uint128"},{"internalType":"uint128","name":"liquidityRate","type":"uint128"},{"internalType":"uint128","name":"variableBorrowRate","type":"uint128"},{"internalType":"uint128","name":"stableBorrowRate","type":"uint128"},{"internalType":"uint40","name":"lastUpdateTimestamp","type":"uint40"},{"internalType":"address","name":"aTokenAddress","type":"address"},{"internalType":"address","name":"stableDebtTokenAddress","type":"address"},{"internalType":"address","name":"variableDebtTokenAddress","type":"address"},{"internalType":"address","name":"interestRateStrategyAddress","type":"address"},{"internalType":"uint256","name":"availableLiquidity","type":"uint256"},{"internalType":"uint256","name":"totalPrincipalStableDebt","type":"uint256"},{"internalType":"uint256","name":"averageStableRate","type":"uint256"},{"internalType":"uint256","name":"stableDebtLastUpdateTimestamp","type":"uint256"},{"internalType":"uint256","name":"totalScaledVariableDebt","type":"uint256"},{"internalType":"uint256","name":"priceInMarketReferenceCurrency","type":"uint256"},{"internalType":"uint256","name":"variableRateSlope1","type":"uint256"},{"internalType":"uint256","name":"variableRateSlope2","type":"uint256"},{"internalType":"uint256","name":"stableRateSlope1","type":"uint256"},{"internalType":"uint256","name":"stableRateSlope2","type":"uint256"}],"internalType":"struct IUiPoolDataProviderV2.AggregatedReserveData[]","name":"","type":"tuple[]"},{"components":[{"internalType":"uint256","name":"marketReferenceCurrencyUnit","type":"uint256"},{"internalType":"int256","name":"marketReferenceCurrencyPriceInUsd","type":"int256"},{"internalType":"int256","name":"networkBaseTokenPriceInUsd","type":"int256"},{"internalType":"uint8","name":"networkBaseTokenPriceDecimals","type":"uint8"}],"internalType":"struct IUiPoolDataProviderV2.BaseCurrencyInfo","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ILendingPoolAddressesProvider","name":"provider","type":"address"}],"name":"getReservesList","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ILendingPoolAddressesProvider","name":"provider","type":"address"},{"internalType":"address","name":"user","type":"address"}],"name":"getUserReservesData","outputs":[{"components":[{"internalType":"address","name":"underlyingAsset","type":"address"},{"internalType":"uint256","name":"scaledATokenBalance","type":"uint256"},{"internalType":"bool","name":"usageAsCollateralEnabledOnUser","type":"bool"},{"internalType":"uint256","name":"stableBorrowRate","type":"uint256"},{"internalType":"uint256","name":"scaledVariableDebt","type":"uint256"},{"internalType":"uint256","name":"principalStableDebt","type":"uint256"},{"internalType":"uint256","name":"stableBorrowLastUpdateTimestamp","type":"uint256"}],"internalType":"struct IUiPoolDataProviderV2.UserReserveData[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"marketReferenceCurrencyPriceInUsdProxyAggregator","outputs":[{"internalType":"contract IChainlinkAggregator","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"networkBaseTokenPriceInUsdProxyAggregator","outputs":[{"internalType":"contract IChainlinkAggregator","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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00000000000000000000000089e60b56efd70a1d4fbbae947bc33cae41e37a7200000000000000000000000089e60b56efd70a1d4fbbae947bc33cae41e37a72

-----Decoded View---------------
Arg [0] : _networkBaseTokenPriceInUsdProxyAggregator (address): 0x89e60b56efD70a1D4FBBaE947bC33cae41e37A72
Arg [1] : _marketReferenceCurrencyPriceInUsdProxyAggregator (address): 0x89e60b56efD70a1D4FBBaE947bC33cae41e37A72

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000089e60b56efd70a1d4fbbae947bc33cae41e37a72
Arg [1] : 00000000000000000000000089e60b56efd70a1d4fbbae947bc33cae41e37a72