pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;

// aave v2
interface AaveV2Interface {
	function withdraw(
		address _asset,
		uint256 _amount,
		address _to
	) external;

	function borrow(
		address _asset,
		uint256 _amount,
		uint256 _interestRateMode,
		uint16 _referralCode,
		address _onBehalfOf
	) external;

	function repay(
		address _asset,
		uint256 _amount,
		uint256 _rateMode,
		address _onBehalfOf
	) external;

	function setUserUseReserveAsCollateral(
		address _asset,
		bool _useAsCollateral
	) external;

	function getUserAccountData(address user)
		external
		view
		returns (
			uint256 totalCollateralETH,
			uint256 totalDebtETH,
			uint256 availableBorrowsETH,
			uint256 currentLiquidationThreshold,
			uint256 ltv,
			uint256 healthFactor
		);
}

interface AaveV2LendingPoolProviderInterface {
	function getLendingPool() external view returns (address);
}

// Aave Protocol Data Provider
interface AaveV2DataProviderInterface {
	function getUserReserveData(address _asset, address _user)
		external
		view
		returns (
			uint256 currentATokenBalance,
			uint256 currentStableDebt,
			uint256 currentVariableDebt,
			uint256 principalStableDebt,
			uint256 scaledVariableDebt,
			uint256 stableBorrowRate,
			uint256 liquidityRate,
			uint40 stableRateLastUpdated,
			bool usageAsCollateralEnabled
		);

	// function getReserveConfigurationData(address asset)
	// 	external
	// 	view
	// 	returns (
	// 		uint256 decimals,
	// 		uint256 ltv,
	// 		uint256 liquidationThreshold,
	// 		uint256 liquidationBonus,
	// 		uint256 reserveFactor,
	// 		bool usageAsCollateralEnabled,
	// 		bool borrowingEnabled,
	// 		bool stableBorrowRateEnabled,
	// 		bool isActive,
	// 		bool isFrozen
	// 	);

	function getReserveTokensAddresses(address asset)
		external
		view
		returns (
			address aTokenAddress,
			address stableDebtTokenAddress,
			address variableDebtTokenAddress
		);
}

interface ATokenV2Interface {
	function scaledBalanceOf(address _user) external view returns (uint256);

	function isTransferAllowed(address _user, uint256 _amount)
		external
		view
		returns (bool);

	function balanceOf(address _user) external view returns (uint256);

	function transferFrom(
		address,
		address,
		uint256
	) external returns (bool);

	function allowance(address, address) external returns (uint256);
}

// aave v3
interface AaveV3Interface {
	function supply(
		address asset,
		uint256 amount,
		address onBehalfOf,
		uint16 referralCode
	) external;

	function withdraw(
		address asset,
		uint256 amount,
		address to
	) external returns (uint256);

	function borrow(
		address asset,
		uint256 amount,
		uint256 interestRateMode,
		uint16 referralCode,
		address onBehalfOf
	) external;

	function repay(
		address asset,
		uint256 amount,
		uint256 interestRateMode,
		address onBehalfOf
	) external returns (uint256);

	function setUserUseReserveAsCollateral(address asset, bool useAsCollateral)
		external;

	function swapBorrowRateMode(address asset, uint256 interestRateMode)
		external;
}

interface AaveV3PoolProviderInterface {
	function getPool() external view returns (address);
}