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// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.10;

import {IERC20} from "../../dependencies/openzeppelin/contracts/IERC20.sol";
import {WadRayMath} from "../libraries/math/WadRayMath.sol";
import {PercentageMath} from "../libraries/math/PercentageMath.sol";
import {DataTypes} from "../libraries/types/DataTypes.sol";
import {Errors} from "../libraries/helpers/Errors.sol";
import {IDefaultInterestRateStrategy} from "../../interfaces/IDefaultInterestRateStrategy.sol";
import {IReserveInterestRateStrategy} from "../../interfaces/IReserveInterestRateStrategy.sol";
import {IPoolAddressesProvider} from "../../interfaces/IPoolAddressesProvider.sol";

/**
 * @title DefaultReserveInterestRateStrategy contract
 * @author Aave
 * @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_USAGE_RATIO`
 * point of usage 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 PoolAddressesProvider
 */
contract DefaultReserveInterestRateStrategy is IDefaultInterestRateStrategy {
    using WadRayMath for uint256;
    using PercentageMath for uint256;

    /// @inheritdoc IDefaultInterestRateStrategy
    uint256 public immutable OPTIMAL_USAGE_RATIO;

    /// @inheritdoc IDefaultInterestRateStrategy
    uint256 public immutable OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO;

    /// @inheritdoc IDefaultInterestRateStrategy
    uint256 public immutable MAX_EXCESS_USAGE_RATIO;

    /// @inheritdoc IDefaultInterestRateStrategy
    uint256 public immutable MAX_EXCESS_STABLE_TO_TOTAL_DEBT_RATIO;

    IPoolAddressesProvider public immutable ADDRESSES_PROVIDER;

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

    // Slope of the variable interest curve when usage ratio > 0 and <= OPTIMAL_USAGE_RATIO. Expressed in ray
    uint256 internal immutable _variableRateSlope1;

    // Slope of the variable interest curve when usage ratio > OPTIMAL_USAGE_RATIO. Expressed in ray
    uint256 internal immutable _variableRateSlope2;

    // Slope of the stable interest curve when usage ratio > 0 and <= OPTIMAL_USAGE_RATIO. Expressed in ray
    uint256 internal immutable _stableRateSlope1;

    // Slope of the stable interest curve when usage ratio > OPTIMAL_USAGE_RATIO. Expressed in ray
    uint256 internal immutable _stableRateSlope2;

    // Premium on top of `_variableRateSlope1` for base stable borrowing rate
    uint256 internal immutable _baseStableRateOffset;

    // Additional premium applied to stable rate when stable debt surpass `OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO`
    uint256 internal immutable _stableRateExcessOffset;

    /**
     * @dev Constructor.
     * @param provider The address of the PoolAddressesProvider contract
     * @param optimalUsageRatio The optimal usage ratio
     * @param baseVariableBorrowRate The base variable borrow rate
     * @param variableRateSlope1 The variable rate slope below optimal usage ratio
     * @param variableRateSlope2 The variable rate slope above optimal usage ratio
     * @param stableRateSlope1 The stable rate slope below optimal usage ratio
     * @param stableRateSlope2 The stable rate slope above optimal usage ratio
     * @param baseStableRateOffset The premium on top of variable rate for base stable borrowing rate
     * @param stableRateExcessOffset The premium on top of stable rate when there stable debt surpass the threshold
     * @param optimalStableToTotalDebtRatio The optimal stable debt to total debt ratio of the reserve
     */
    constructor(
        IPoolAddressesProvider provider,
        uint256 optimalUsageRatio,
        uint256 baseVariableBorrowRate,
        uint256 variableRateSlope1,
        uint256 variableRateSlope2,
        uint256 stableRateSlope1,
        uint256 stableRateSlope2,
        uint256 baseStableRateOffset,
        uint256 stableRateExcessOffset,
        uint256 optimalStableToTotalDebtRatio
    ) {
        require(
            WadRayMath.RAY >= optimalUsageRatio,
            Errors.INVALID_OPTIMAL_USAGE_RATIO
        );
        require(
            WadRayMath.RAY >= optimalStableToTotalDebtRatio,
            Errors.INVALID_OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO
        );
        OPTIMAL_USAGE_RATIO = optimalUsageRatio;
        MAX_EXCESS_USAGE_RATIO = WadRayMath.RAY - optimalUsageRatio;
        OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO = optimalStableToTotalDebtRatio;
        MAX_EXCESS_STABLE_TO_TOTAL_DEBT_RATIO =
            WadRayMath.RAY -
            optimalStableToTotalDebtRatio;
        ADDRESSES_PROVIDER = provider;
        _baseVariableBorrowRate = baseVariableBorrowRate;
        _variableRateSlope1 = variableRateSlope1;
        _variableRateSlope2 = variableRateSlope2;
        _stableRateSlope1 = stableRateSlope1;
        _stableRateSlope2 = stableRateSlope2;
        _baseStableRateOffset = baseStableRateOffset;
        _stableRateExcessOffset = stableRateExcessOffset;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getVariableRateSlope1() external view returns (uint256) {
        return _variableRateSlope1;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getVariableRateSlope2() external view returns (uint256) {
        return _variableRateSlope2;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getStableRateSlope1() external view returns (uint256) {
        return _stableRateSlope1;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getStableRateSlope2() external view returns (uint256) {
        return _stableRateSlope2;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getStableRateExcessOffset() external view returns (uint256) {
        return _stableRateExcessOffset;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getBaseStableBorrowRate() public view returns (uint256) {
        return _variableRateSlope1 + _baseStableRateOffset;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getBaseVariableBorrowRate()
        external
        view
        override
        returns (uint256)
    {
        return _baseVariableBorrowRate;
    }

    /// @inheritdoc IDefaultInterestRateStrategy
    function getMaxVariableBorrowRate()
        external
        view
        override
        returns (uint256)
    {
        return
            _baseVariableBorrowRate + _variableRateSlope1 + _variableRateSlope2;
    }

    struct CalcInterestRatesLocalVars {
        uint256 availableLiquidity;
        uint256 totalDebt;
        uint256 currentVariableBorrowRate;
        uint256 currentStableBorrowRate;
        uint256 currentLiquidityRate;
        uint256 borrowUsageRatio;
        uint256 supplyUsageRatio;
        uint256 stableToTotalDebtRatio;
        uint256 availableLiquidityPlusDebt;
    }

    /// @inheritdoc IReserveInterestRateStrategy
    function calculateInterestRates(
        DataTypes.CalculateInterestRatesParams memory params
    ) public view override returns (uint256, uint256, uint256) {
        CalcInterestRatesLocalVars memory vars;

        vars.totalDebt = params.totalStableDebt + params.totalVariableDebt;

        vars.currentLiquidityRate = 0;
        vars.currentVariableBorrowRate = _baseVariableBorrowRate;
        vars.currentStableBorrowRate = getBaseStableBorrowRate();

        if (vars.totalDebt != 0) {
            vars.stableToTotalDebtRatio = params.totalStableDebt.rayDiv(
                vars.totalDebt
            );
            vars.availableLiquidity =
                IERC20(params.reserve).balanceOf(params.aToken) +
                params.liquidityAdded -
                params.liquidityTaken;

            vars.availableLiquidityPlusDebt =
                vars.availableLiquidity +
                vars.totalDebt;
            vars.borrowUsageRatio = vars.totalDebt.rayDiv(
                vars.availableLiquidityPlusDebt
            );
            vars.supplyUsageRatio = vars.totalDebt.rayDiv(
                vars.availableLiquidityPlusDebt + params.unbacked
            );
        }

        if (vars.borrowUsageRatio > OPTIMAL_USAGE_RATIO) {
            uint256 excessBorrowUsageRatio = (vars.borrowUsageRatio -
                OPTIMAL_USAGE_RATIO).rayDiv(MAX_EXCESS_USAGE_RATIO);

            vars.currentStableBorrowRate +=
                _stableRateSlope1 +
                _stableRateSlope2.rayMul(excessBorrowUsageRatio);

            vars.currentVariableBorrowRate +=
                _variableRateSlope1 +
                _variableRateSlope2.rayMul(excessBorrowUsageRatio);
        } else {
            vars.currentStableBorrowRate += _stableRateSlope1
                .rayMul(vars.borrowUsageRatio)
                .rayDiv(OPTIMAL_USAGE_RATIO);

            vars.currentVariableBorrowRate += _variableRateSlope1
                .rayMul(vars.borrowUsageRatio)
                .rayDiv(OPTIMAL_USAGE_RATIO);
        }

        if (vars.stableToTotalDebtRatio > OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO) {
            uint256 excessStableDebtRatio = (vars.stableToTotalDebtRatio -
                OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO).rayDiv(
                    MAX_EXCESS_STABLE_TO_TOTAL_DEBT_RATIO
                );
            vars.currentStableBorrowRate += _stableRateExcessOffset.rayMul(
                excessStableDebtRatio
            );
        }

        vars.currentLiquidityRate = _getOverallBorrowRate(
            params.totalStableDebt,
            params.totalVariableDebt,
            vars.currentVariableBorrowRate,
            params.averageStableBorrowRate
        ).rayMul(vars.supplyUsageRatio).percentMul(
                PercentageMath.PERCENTAGE_FACTOR - params.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 at 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 + totalVariableDebt;

        if (totalDebt == 0) return 0;

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

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

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

        return overallBorrowRate;
    }
}

// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

import {IReserveInterestRateStrategy} from "./IReserveInterestRateStrategy.sol";
import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";

/**
 * @title IDefaultInterestRateStrategy
 * @author Aave
 * @notice Defines the basic interface of the DefaultReserveInterestRateStrategy
 */
interface IDefaultInterestRateStrategy is IReserveInterestRateStrategy {
    /**
     * @notice Returns the usage ratio at which the pool aims to obtain most competitive borrow rates.
     * @return The optimal usage ratio, expressed in ray.
     */
    function OPTIMAL_USAGE_RATIO() external view returns (uint256);

    /**
     * @notice Returns the optimal stable to total debt ratio of the reserve.
     * @return The optimal stable to total debt ratio, expressed in ray.
     */
    function OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO()
        external
        view
        returns (uint256);

    /**
     * @notice Returns the excess usage ratio above the optimal.
     * @dev It's always equal to 1-optimal usage ratio (added as constant for gas optimizations)
     * @return The max excess usage ratio, expressed in ray.
     */
    function MAX_EXCESS_USAGE_RATIO() external view returns (uint256);

    /**
     * @notice Returns the excess stable debt ratio above the optimal.
     * @dev It's always equal to 1-optimal stable to total debt ratio (added as constant for gas optimizations)
     * @return The max excess stable to total debt ratio, expressed in ray.
     */
    function MAX_EXCESS_STABLE_TO_TOTAL_DEBT_RATIO()
        external
        view
        returns (uint256);

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

    /**
     * @notice Returns the variable rate slope below optimal usage ratio
     * @dev It's the variable rate when usage ratio > 0 and <= OPTIMAL_USAGE_RATIO
     * @return The variable rate slope, expressed in ray
     */
    function getVariableRateSlope1() external view returns (uint256);

    /**
     * @notice Returns the variable rate slope above optimal usage ratio
     * @dev It's the variable rate when usage ratio > OPTIMAL_USAGE_RATIO
     * @return The variable rate slope, expressed in ray
     */
    function getVariableRateSlope2() external view returns (uint256);

    /**
     * @notice Returns the stable rate slope below optimal usage ratio
     * @dev It's the stable rate when usage ratio > 0 and <= OPTIMAL_USAGE_RATIO
     * @return The stable rate slope, expressed in ray
     */
    function getStableRateSlope1() external view returns (uint256);

    /**
     * @notice Returns the stable rate slope above optimal usage ratio
     * @dev It's the variable rate when usage ratio > OPTIMAL_USAGE_RATIO
     * @return The stable rate slope, expressed in ray
     */
    function getStableRateSlope2() external view returns (uint256);

    /**
     * @notice Returns the stable rate excess offset
     * @dev It's an additional premium applied to the stable when stable debt > OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO
     * @return The stable rate excess offset, expressed in ray
     */
    function getStableRateExcessOffset() external view returns (uint256);

    /**
     * @notice Returns the base stable borrow rate
     * @return The base stable borrow rate, expressed in ray
     */
    function getBaseStableBorrowRate() external view returns (uint256);

    /**
     * @notice Returns the base variable borrow rate
     * @return The base variable borrow rate, expressed in ray
     */
    function getBaseVariableBorrowRate() external view returns (uint256);

    /**
     * @notice Returns the maximum variable borrow rate
     * @return The maximum variable borrow rate, expressed in ray
     */
    function getMaxVariableBorrowRate() external view returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

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

/**
 * @title IReserveInterestRateStrategy
 * @author Aave
 * @notice Interface for the calculation of the interest rates
 */
interface IReserveInterestRateStrategy {
    /**
     * @notice Calculates the interest rates depending on the reserve's state and configurations
     * @param params The parameters needed to calculate interest rates
     * @return liquidityRate The liquidity rate expressed in rays
     * @return stableBorrowRate The stable borrow rate expressed in rays
     * @return variableBorrowRate The variable borrow rate expressed in rays
     */
    function calculateInterestRates(
        DataTypes.CalculateInterestRatesParams memory params
    ) external view returns (uint256, uint256, uint256);
}

// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

/**
 * @title Errors library
 * @author Aave
 * @notice Defines the error messages emitted by the different contracts of the Aave protocol
 */
library Errors {
    string public constant CALLER_NOT_POOL_ADMIN = "1"; // 'The caller of the function is not a pool admin'
    string public constant CALLER_NOT_EMERGENCY_ADMIN = "2"; // 'The caller of the function is not an emergency admin'
    string public constant CALLER_NOT_POOL_OR_EMERGENCY_ADMIN = "3"; // 'The caller of the function is not a pool or emergency admin'
    string public constant CALLER_NOT_RISK_OR_POOL_ADMIN = "4"; // 'The caller of the function is not a risk or pool admin'
    string public constant CALLER_NOT_ASSET_LISTING_OR_POOL_ADMIN = "5"; // 'The caller of the function is not an asset listing or pool admin'
    string public constant CALLER_NOT_BRIDGE = "6"; // 'The caller of the function is not a bridge'
    string public constant ADDRESSES_PROVIDER_NOT_REGISTERED = "7"; // 'Pool addresses provider is not registered'
    string public constant INVALID_ADDRESSES_PROVIDER_ID = "8"; // 'Invalid id for the pool addresses provider'
    string public constant NOT_CONTRACT = "9"; // 'Address is not a contract'
    string public constant CALLER_NOT_POOL_CONFIGURATOR = "10"; // 'The caller of the function is not the pool configurator'
    string public constant CALLER_NOT_ATOKEN = "11"; // 'The caller of the function is not an AToken'
    string public constant INVALID_ADDRESSES_PROVIDER = "12"; // 'The address of the pool addresses provider is invalid'
    string public constant INVALID_FLASHLOAN_EXECUTOR_RETURN = "13"; // 'Invalid return value of the flashloan executor function'
    string public constant RESERVE_ALREADY_ADDED = "14"; // 'Reserve has already been added to reserve list'
    string public constant NO_MORE_RESERVES_ALLOWED = "15"; // 'Maximum amount of reserves in the pool reached'
    string public constant EMODE_CATEGORY_RESERVED = "16"; // 'Zero eMode category is reserved for volatile heterogeneous assets'
    string public constant INVALID_EMODE_CATEGORY_ASSIGNMENT = "17"; // 'Invalid eMode category assignment to asset'
    string public constant RESERVE_LIQUIDITY_NOT_ZERO = "18"; // 'The liquidity of the reserve needs to be 0'
    string public constant FLASHLOAN_PREMIUM_INVALID = "19"; // 'Invalid flashloan premium'
    string public constant INVALID_RESERVE_PARAMS = "20"; // 'Invalid risk parameters for the reserve'
    string public constant INVALID_EMODE_CATEGORY_PARAMS = "21"; // 'Invalid risk parameters for the eMode category'
    string public constant BRIDGE_PROTOCOL_FEE_INVALID = "22"; // 'Invalid bridge protocol fee'
    string public constant CALLER_MUST_BE_POOL = "23"; // 'The caller of this function must be a pool'
    string public constant INVALID_MINT_AMOUNT = "24"; // 'Invalid amount to mint'
    string public constant INVALID_BURN_AMOUNT = "25"; // 'Invalid amount to burn'
    string public constant INVALID_AMOUNT = "26"; // 'Amount must be greater than 0'
    string public constant RESERVE_INACTIVE = "27"; // 'Action requires an active reserve'
    string public constant RESERVE_FROZEN = "28"; // 'Action cannot be performed because the reserve is frozen'
    string public constant RESERVE_PAUSED = "29"; // 'Action cannot be performed because the reserve is paused'
    string public constant BORROWING_NOT_ENABLED = "30"; // 'Borrowing is not enabled'
    string public constant STABLE_BORROWING_NOT_ENABLED = "31"; // 'Stable borrowing is not enabled'
    string public constant NOT_ENOUGH_AVAILABLE_USER_BALANCE = "32"; // 'User cannot withdraw more than the available balance'
    string public constant INVALID_INTEREST_RATE_MODE_SELECTED = "33"; // 'Invalid interest rate mode selected'
    string public constant COLLATERAL_BALANCE_IS_ZERO = "34"; // 'The collateral balance is 0'
    string public constant HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD =
        "35"; // 'Health factor is lesser than the liquidation threshold'
    string public constant COLLATERAL_CANNOT_COVER_NEW_BORROW = "36"; // 'There is not enough collateral to cover a new borrow'
    string public constant COLLATERAL_SAME_AS_BORROWING_CURRENCY = "37"; // 'Collateral is (mostly) the same currency that is being borrowed'
    string public constant AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = "38"; // 'The requested amount is greater than the max loan size in stable rate mode'
    string public constant NO_DEBT_OF_SELECTED_TYPE = "39"; // 'For repayment of a specific type of debt, the user needs to have debt that type'
    string public constant NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = "40"; // 'To repay on behalf of a user an explicit amount to repay is needed'
    string public constant NO_OUTSTANDING_STABLE_DEBT = "41"; // 'User does not have outstanding stable rate debt on this reserve'
    string public constant NO_OUTSTANDING_VARIABLE_DEBT = "42"; // 'User does not have outstanding variable rate debt on this reserve'
    string public constant UNDERLYING_BALANCE_ZERO = "43"; // 'The underlying balance needs to be greater than 0'
    string public constant INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = "44"; // 'Interest rate rebalance conditions were not met'
    string public constant HEALTH_FACTOR_NOT_BELOW_THRESHOLD = "45"; // 'Health factor is not below the threshold'
    string public constant COLLATERAL_CANNOT_BE_LIQUIDATED = "46"; // 'The collateral chosen cannot be liquidated'
    string public constant SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = "47"; // 'User did not borrow the specified currency'
    string public constant INCONSISTENT_FLASHLOAN_PARAMS = "49"; // 'Inconsistent flashloan parameters'
    string public constant BORROW_CAP_EXCEEDED = "50"; // 'Borrow cap is exceeded'
    string public constant SUPPLY_CAP_EXCEEDED = "51"; // 'Supply cap is exceeded'
    string public constant UNBACKED_MINT_CAP_EXCEEDED = "52"; // 'Unbacked mint cap is exceeded'
    string public constant DEBT_CEILING_EXCEEDED = "53"; // 'Debt ceiling is exceeded'
    string public constant UNDERLYING_CLAIMABLE_RIGHTS_NOT_ZERO = "54"; // 'Claimable rights over underlying not zero (aToken supply or accruedToTreasury)'
    string public constant STABLE_DEBT_NOT_ZERO = "55"; // 'Stable debt supply is not zero'
    string public constant VARIABLE_DEBT_SUPPLY_NOT_ZERO = "56"; // 'Variable debt supply is not zero'
    string public constant LTV_VALIDATION_FAILED = "57"; // 'Ltv validation failed'
    string public constant INCONSISTENT_EMODE_CATEGORY = "58"; // 'Inconsistent eMode category'
    string public constant PRICE_ORACLE_SENTINEL_CHECK_FAILED = "59"; // 'Price oracle sentinel validation failed'
    string public constant ASSET_NOT_BORROWABLE_IN_ISOLATION = "60"; // 'Asset is not borrowable in isolation mode'
    string public constant RESERVE_ALREADY_INITIALIZED = "61"; // 'Reserve has already been initialized'
    string public constant USER_IN_ISOLATION_MODE_OR_LTV_ZERO = "62"; // 'User is in isolation mode or ltv is zero'
    string public constant INVALID_LTV = "63"; // 'Invalid ltv parameter for the reserve'
    string public constant INVALID_LIQ_THRESHOLD = "64"; // 'Invalid liquidity threshold parameter for the reserve'
    string public constant INVALID_LIQ_BONUS = "65"; // 'Invalid liquidity bonus parameter for the reserve'
    string public constant INVALID_DECIMALS = "66"; // 'Invalid decimals parameter of the underlying asset of the reserve'
    string public constant INVALID_RESERVE_FACTOR = "67"; // 'Invalid reserve factor parameter for the reserve'
    string public constant INVALID_BORROW_CAP = "68"; // 'Invalid borrow cap for the reserve'
    string public constant INVALID_SUPPLY_CAP = "69"; // 'Invalid supply cap for the reserve'
    string public constant INVALID_LIQUIDATION_PROTOCOL_FEE = "70"; // 'Invalid liquidation protocol fee for the reserve'
    string public constant INVALID_EMODE_CATEGORY = "71"; // 'Invalid eMode category for the reserve'
    string public constant INVALID_UNBACKED_MINT_CAP = "72"; // 'Invalid unbacked mint cap for the reserve'
    string public constant INVALID_DEBT_CEILING = "73"; // 'Invalid debt ceiling for the reserve
    string public constant INVALID_RESERVE_INDEX = "74"; // 'Invalid reserve index'
    string public constant ACL_ADMIN_CANNOT_BE_ZERO = "75"; // 'ACL admin cannot be set to the zero address'
    string public constant INCONSISTENT_PARAMS_LENGTH = "76"; // 'Array parameters that should be equal length are not'
    string public constant ZERO_ADDRESS_NOT_VALID = "77"; // 'Zero address not valid'
    string public constant INVALID_EXPIRATION = "78"; // 'Invalid expiration'
    string public constant INVALID_SIGNATURE = "79"; // 'Invalid signature'
    string public constant OPERATION_NOT_SUPPORTED = "80"; // 'Operation not supported'
    string public constant DEBT_CEILING_NOT_ZERO = "81"; // 'Debt ceiling is not zero'
    string public constant ASSET_NOT_LISTED = "82"; // 'Asset is not listed'
    string public constant INVALID_OPTIMAL_USAGE_RATIO = "83"; // 'Invalid optimal usage ratio'
    string public constant INVALID_OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO = "84"; // 'Invalid optimal stable to total debt ratio'
    string public constant UNDERLYING_CANNOT_BE_RESCUED = "85"; // 'The underlying asset cannot be rescued'
    string public constant ADDRESSES_PROVIDER_ALREADY_ADDED = "86"; // 'Reserve has already been added to reserve list'
    string public constant POOL_ADDRESSES_DO_NOT_MATCH = "87"; // 'The token implementation pool address and the pool address provided by the initializing pool do not match'
    string public constant STABLE_BORROWING_ENABLED = "88"; // 'Stable borrowing is enabled'
    string public constant SILOED_BORROWING_VIOLATION = "89"; // 'User is trying to borrow multiple assets including a siloed one'
    string public constant RESERVE_DEBT_NOT_ZERO = "90"; // the total debt of the reserve needs to be 0
    string public constant FLASHLOAN_DISABLED = "91"; // FlashLoaning for this asset is disabled
}

// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

/**
 * @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. If a value is >=.5, will be rounded up, otherwise rounded down.
 */
library PercentageMath {
    // Maximum percentage factor (100.00%)
    uint256 internal constant PERCENTAGE_FACTOR = 1e4;

    // Half percentage factor (50.00%)
    uint256 internal constant HALF_PERCENTAGE_FACTOR = 0.5e4;

    /**
     * @notice Executes a percentage multiplication
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param value The value of which the percentage needs to be calculated
     * @param percentage The percentage of the value to be calculated
     * @return result value percentmul percentage
     */
    function percentMul(
        uint256 value,
        uint256 percentage
    ) internal pure returns (uint256 result) {
        // to avoid overflow, value <= (type(uint256).max - HALF_PERCENTAGE_FACTOR) / percentage
        assembly {
            if iszero(
                or(
                    iszero(percentage),
                    iszero(
                        gt(
                            value,
                            div(sub(not(0), HALF_PERCENTAGE_FACTOR), percentage)
                        )
                    )
                )
            ) {
                revert(0, 0)
            }

            result := div(
                add(mul(value, percentage), HALF_PERCENTAGE_FACTOR),
                PERCENTAGE_FACTOR
            )
        }
    }

    /**
     * @notice Executes a percentage division
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param value The value of which the percentage needs to be calculated
     * @param percentage The percentage of the value to be calculated
     * @return result value percentdiv percentage
     */
    function percentDiv(
        uint256 value,
        uint256 percentage
    ) internal pure returns (uint256 result) {
        // to avoid overflow, value <= (type(uint256).max - halfPercentage) / PERCENTAGE_FACTOR
        assembly {
            if or(
                iszero(percentage),
                iszero(
                    iszero(
                        gt(
                            value,
                            div(
                                sub(not(0), div(percentage, 2)),
                                PERCENTAGE_FACTOR
                            )
                        )
                    )
                )
            ) {
                revert(0, 0)
            }

            result := div(
                add(mul(value, PERCENTAGE_FACTOR), div(percentage, 2)),
                percentage
            )
        }
    }
}

// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

/**
 * @title WadRayMath library
 * @author Aave
 * @notice Provides functions to perform calculations with Wad and Ray units
 * @dev Provides mul and div function for wads (decimal numbers with 18 digits of precision) and rays (decimal numbers
 * with 27 digits of precision)
 * @dev Operations are rounded. If a value is >=.5, will be rounded up, otherwise rounded down.
 */
library WadRayMath {
    // HALF_WAD and HALF_RAY expressed with extended notation as constant with operations are not supported in Yul assembly
    uint256 internal constant WAD = 1e18;
    uint256 internal constant HALF_WAD = 0.5e18;

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

    uint256 internal constant WAD_RAY_RATIO = 1e9;

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
 *    _____     ______   ______     __     __   __     __     ______   __  __       *
 *   /\  __-.  /\__  _\ /\  == \   /\ \   /\ "-.\ \   /\ \   /\__  _\ /\ \_\ \      *
 *   \ \ \/\ \ \/_/\ \/ \ \  __<   \ \ \  \ \ \-.  \  \ \ \  \/_/\ \/ \ \____ \     *
 *    \ \____-    \ \_\  \ \_\ \_\  \ \_\  \ \_\\"\_\  \ \_\    \ \_\  \/\_____\    *
 *     \/____/     \/_/   \/_/ /_/   \/_/   \/_/ \/_/   \/_/     \/_/   \/_____/    *
 *                                                                                  *
 * ————————————————————————————————— dtrinity.org ————————————————————————————————— *
 *                                                                                  *
 *                                         ▲                                        *
 *                                        ▲ ▲                                       *
 *                                                                                  *
 * ———————————————————————————————————————————————————————————————————————————————— *
 * dTRINITY Protocol: https://github.com/dtrinity                                   *
 * ———————————————————————————————————————————————————————————————————————————————— */

pragma solidity ^0.8.0;

library DataTypes {
    struct ReserveData {
        //stores the reserve configuration
        ReserveConfigurationMap configuration;
        //the liquidity index. Expressed in ray
        uint128 liquidityIndex;
        //the current supply rate. Expressed in ray
        uint128 currentLiquidityRate;
        //variable borrow index. Expressed in ray
        uint128 variableBorrowIndex;
        //the current variable borrow rate. Expressed in ray
        uint128 currentVariableBorrowRate;
        //the current stable borrow rate. Expressed in ray
        uint128 currentStableBorrowRate;
        //timestamp of last update
        uint40 lastUpdateTimestamp;
        //the id of the reserve. Represents the position in the list of the active reserves
        uint16 id;
        //aToken address
        address aTokenAddress;
        //stableDebtToken address
        address stableDebtTokenAddress;
        //variableDebtToken address
        address variableDebtTokenAddress;
        //address of the interest rate strategy
        address interestRateStrategyAddress;
        //the current treasury balance, scaled
        uint128 accruedToTreasury;
        //the outstanding unbacked aTokens minted through the bridging feature
        uint128 unbacked;
        //the outstanding debt borrowed against this asset in isolation mode
        uint128 isolationModeTotalDebt;
    }

    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: asset is paused
        //bit 61: borrowing in isolation mode is enabled
        //bit 62: siloed borrowing enabled
        //bit 63: flashloaning enabled
        //bit 64-79: reserve factor
        //bit 80-115 borrow cap in whole tokens, borrowCap == 0 => no cap
        //bit 116-151 supply cap in whole tokens, supplyCap == 0 => no cap
        //bit 152-167 liquidation protocol fee
        //bit 168-175 eMode category
        //bit 176-211 unbacked mint cap in whole tokens, unbackedMintCap == 0 => minting disabled
        //bit 212-251 debt ceiling for isolation mode with (ReserveConfiguration::DEBT_CEILING_DECIMALS) decimals
        //bit 252-255 unused

        uint256 data;
    }

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

    struct EModeCategory {
        // each eMode category has a custom ltv and liquidation threshold
        uint16 ltv;
        uint16 liquidationThreshold;
        uint16 liquidationBonus;
        // each eMode category may or may not have a custom oracle to override the individual assets price oracles
        address priceSource;
        string label;
    }

    enum InterestRateMode {
        NONE,
        STABLE,
        VARIABLE
    }

    struct ReserveCache {
        uint256 currScaledVariableDebt;
        uint256 nextScaledVariableDebt;
        uint256 currPrincipalStableDebt;
        uint256 currAvgStableBorrowRate;
        uint256 currTotalStableDebt;
        uint256 nextAvgStableBorrowRate;
        uint256 nextTotalStableDebt;
        uint256 currLiquidityIndex;
        uint256 nextLiquidityIndex;
        uint256 currVariableBorrowIndex;
        uint256 nextVariableBorrowIndex;
        uint256 currLiquidityRate;
        uint256 currVariableBorrowRate;
        uint256 reserveFactor;
        ReserveConfigurationMap reserveConfiguration;
        address aTokenAddress;
        address stableDebtTokenAddress;
        address variableDebtTokenAddress;
        uint40 reserveLastUpdateTimestamp;
        uint40 stableDebtLastUpdateTimestamp;
    }

    struct ExecuteLiquidationCallParams {
        uint256 reservesCount;
        uint256 debtToCover;
        address collateralAsset;
        address debtAsset;
        address user;
        bool receiveAToken;
        address priceOracle;
        uint8 userEModeCategory;
        address priceOracleSentinel;
    }

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

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

    struct ExecuteRepayParams {
        address asset;
        uint256 amount;
        InterestRateMode interestRateMode;
        address onBehalfOf;
        bool useATokens;
    }

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

    struct ExecuteSetUserEModeParams {
        uint256 reservesCount;
        address oracle;
        uint8 categoryId;
    }

    struct FinalizeTransferParams {
        address asset;
        address from;
        address to;
        uint256 amount;
        uint256 balanceFromBefore;
        uint256 balanceToBefore;
        uint256 reservesCount;
        address oracle;
        uint8 fromEModeCategory;
    }

    struct FlashloanParams {
        address receiverAddress;
        address[] assets;
        uint256[] amounts;
        uint256[] interestRateModes;
        address onBehalfOf;
        bytes params;
        uint16 referralCode;
        uint256 flashLoanPremiumToProtocol;
        uint256 flashLoanPremiumTotal;
        uint256 maxStableRateBorrowSizePercent;
        uint256 reservesCount;
        address addressesProvider;
        uint8 userEModeCategory;
        bool isAuthorizedFlashBorrower;
    }

    struct FlashloanSimpleParams {
        address receiverAddress;
        address asset;
        uint256 amount;
        bytes params;
        uint16 referralCode;
        uint256 flashLoanPremiumToProtocol;
        uint256 flashLoanPremiumTotal;
    }

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

    struct CalculateUserAccountDataParams {
        UserConfigurationMap userConfig;
        uint256 reservesCount;
        address user;
        address oracle;
        uint8 userEModeCategory;
    }

    struct ValidateBorrowParams {
        ReserveCache reserveCache;
        UserConfigurationMap userConfig;
        address asset;
        address userAddress;
        uint256 amount;
        InterestRateMode interestRateMode;
        uint256 maxStableLoanPercent;
        uint256 reservesCount;
        address oracle;
        uint8 userEModeCategory;
        address priceOracleSentinel;
        bool isolationModeActive;
        address isolationModeCollateralAddress;
        uint256 isolationModeDebtCeiling;
    }

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

    struct CalculateInterestRatesParams {
        uint256 unbacked;
        uint256 liquidityAdded;
        uint256 liquidityTaken;
        uint256 totalStableDebt;
        uint256 totalVariableDebt;
        uint256 averageStableBorrowRate;
        uint256 reserveFactor;
        address reserve;
        address aToken;
    }

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

{
  "evmVersion": "paris",
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [],
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IPoolAddressesProvider","name":"provider","type":"address"},{"internalType":"uint256","name":"optimalUsageRatio","type":"uint256"},{"internalType":"uint256","name":"baseVariableBorrowRate","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":"uint256","name":"baseStableRateOffset","type":"uint256"},{"internalType":"uint256","name":"stableRateExcessOffset","type":"uint256"},{"internalType":"uint256","name":"optimalStableToTotalDebtRatio","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ADDRESSES_PROVIDER","outputs":[{"internalType":"contract IPoolAddressesProvider","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_EXCESS_STABLE_TO_TOTAL_DEBT_RATIO","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_EXCESS_USAGE_RATIO","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OPTIMAL_USAGE_RATIO","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"unbacked","type":"uint256"},{"internalType":"uint256","name":"liquidityAdded","type":"uint256"},{"internalType":"uint256","name":"liquidityTaken","type":"uint256"},{"internalType":"uint256","name":"totalStableDebt","type":"uint256"},{"internalType":"uint256","name":"totalVariableDebt","type":"uint256"},{"internalType":"uint256","name":"averageStableBorrowRate","type":"uint256"},{"internalType":"uint256","name":"reserveFactor","type":"uint256"},{"internalType":"address","name":"reserve","type":"address"},{"internalType":"address","name":"aToken","type":"address"}],"internalType":"struct DataTypes.CalculateInterestRatesParams","name":"params","type":"tuple"}],"name":"calculateInterestRates","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBaseStableBorrowRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBaseVariableBorrowRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMaxVariableBorrowRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStableRateExcessOffset","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStableRateSlope1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStableRateSlope2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVariableRateSlope1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVariableRateSlope2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

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-----Decoded View---------------
Arg [0] : provider (address): 0xD9C622d64342B5FaCeef4d366B974AEf6dCB338D
Arg [1] : optimalUsageRatio (uint256): 800000000000000000000000000
Arg [2] : baseVariableBorrowRate (uint256): 50000000000000000000000000
Arg [3] : variableRateSlope1 (uint256): 50000000000000000000000000
Arg [4] : variableRateSlope2 (uint256): 200000000000000000000000000
Arg [5] : stableRateSlope1 (uint256): 0
Arg [6] : stableRateSlope2 (uint256): 0
Arg [7] : baseStableRateOffset (uint256): 0
Arg [8] : stableRateExcessOffset (uint256): 0
Arg [9] : optimalStableToTotalDebtRatio (uint256): 0

-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 000000000000000000000000d9c622d64342b5faceef4d366b974aef6dcb338d
Arg [1] : 00000000000000000000000000000000000000000295be96e640669720000000
Arg [2] : 000000000000000000000000000000000000000000295be96e64066972000000
Arg [3] : 000000000000000000000000000000000000000000295be96e64066972000000
Arg [4] : 000000000000000000000000000000000000000000a56fa5b99019a5c8000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000000