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https://github.com/Instadapp/dsa-connectors-old.git
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Aave v1 helpers
This commit is contained in:
Mubaris NK
parent
6105f0d6e7
commit
ff26b8e135
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@ -56,6 +56,125 @@ interface ComptrollerInterface {
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}
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// End Compound Helpers
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// Aave v1 Helpers
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interface AaveV1Interface {
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function deposit(address _reserve, uint256 _amount, uint16 _referralCode) external payable;
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function redeemUnderlying(
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address _reserve,
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address payable _user,
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uint256 _amount,
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uint256 _aTokenBalanceAfterRedeem
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) external;
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function setUserUseReserveAsCollateral(address _reserve, bool _useAsCollateral) external;
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function getUserReserveData(address _reserve, address _user) external view returns (
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uint256 currentATokenBalance,
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uint256 currentBorrowBalance,
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uint256 principalBorrowBalance,
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uint256 borrowRateMode,
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uint256 borrowRate,
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uint256 liquidityRate,
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uint256 originationFee,
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uint256 variableBorrowIndex,
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uint256 lastUpdateTimestamp,
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bool usageAsCollateralEnabled
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);
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function borrow(address _reserve, uint256 _amount, uint256 _interestRateMode, uint16 _referralCode) external;
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function repay(address _reserve, uint256 _amount, address payable _onBehalfOf) external payable;
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}
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interface AaveV1ProviderInterface {
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function getLendingPool() external view returns (address);
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function getLendingPoolCore() external view returns (address);
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}
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interface AaveV1CoreInterface {
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function getReserveATokenAddress(address _reserve) external view returns (address);
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}
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interface ATokenV1Interface {
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function redeem(uint256 _amount) external;
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function balanceOf(address _user) external view returns(uint256);
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function principalBalanceOf(address _user) external view returns(uint256);
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function allowance(address, address) external view returns (uint);
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function approve(address, uint) external;
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function transfer(address, uint) external returns (bool);
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function transferFrom(address, address, uint) external returns (bool);
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}
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// End Aave v1 Helpers
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// Aave v2 Helpers
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interface AaveV2Interface {
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function deposit(address _asset, uint256 _amount, address _onBehalfOf, uint16 _referralCode) external;
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function withdraw(address _asset, uint256 _amount, address _to) external;
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function borrow(
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address _asset,
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uint256 _amount,
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uint256 _interestRateMode,
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uint16 _referralCode,
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address _onBehalfOf
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) external;
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function repay(address _asset, uint256 _amount, uint256 _rateMode, address _onBehalfOf) external;
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function setUserUseReserveAsCollateral(address _asset, bool _useAsCollateral) external;
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function getUserAccountData(address user) external view returns (
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uint256 totalCollateralETH,
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uint256 totalDebtETH,
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uint256 availableBorrowsETH,
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uint256 currentLiquidationThreshold,
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uint256 ltv,
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uint256 healthFactor
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);
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}
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interface AaveV2LendingPoolProviderInterface {
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function getLendingPool() external view returns (address);
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}
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// Aave Protocol Data Provider
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interface AaveV2DataProviderInterface {
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function getReserveTokensAddresses(address _asset) external view returns (
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address aTokenAddress,
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address stableDebtTokenAddress,
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address variableDebtTokenAddress
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);
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function getUserReserveData(address _asset, address _user) external view returns (
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uint256 currentATokenBalance,
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uint256 currentStableDebt,
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uint256 currentVariableDebt,
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uint256 principalStableDebt,
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uint256 scaledVariableDebt,
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uint256 stableBorrowRate,
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uint256 liquidityRate,
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uint40 stableRateLastUpdated,
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bool usageAsCollateralEnabled
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);
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function getReserveConfigurationData(address asset) external view returns (
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uint256 decimals,
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uint256 ltv,
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uint256 liquidationThreshold,
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uint256 liquidationBonus,
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uint256 reserveFactor,
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bool usageAsCollateralEnabled,
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bool borrowingEnabled,
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bool stableBorrowRateEnabled,
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bool isActive,
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bool isFrozen
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);
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}
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interface AaveV2AddressProviderRegistryInterface {
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function getAddressesProvidersList() external view returns (address[] memory);
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}
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interface ATokenV2Interface {
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function scaledBalanceOf(address _user) external view returns (uint256);
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function isTransferAllowed(address _user, uint256 _amount) external view returns (bool);
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function balanceOf(address _user) external view returns(uint256);
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function transferFrom(address, address, uint) external returns (bool);
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}
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// End Aave v2 Helpers
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contract DSMath {
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function add(uint x, uint y) internal pure returns (uint z) {
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@ -122,6 +241,37 @@ contract Helpers is DSMath {
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return 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;
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}
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/**
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* @dev get Aave Provider
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*/
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function getAaveProvider() internal pure returns (AaveV1ProviderInterface) {
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return AaveV1ProviderInterface(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8); //mainnet
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// return AaveV1ProviderInterface(0x506B0B2CF20FAA8f38a4E2B524EE43e1f4458Cc5); //kovan
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}
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/**
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* @dev get Aave Lending Pool Provider
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*/
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function getAaveV2Provider() internal pure returns (AaveV2LendingPoolProviderInterface) {
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return AaveV2LendingPoolProviderInterface(0xB53C1a33016B2DC2fF3653530bfF1848a515c8c5); //mainnet
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// return AaveV2LendingPoolProviderInterface(0x652B2937Efd0B5beA1c8d54293FC1289672AFC6b); //kovan
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}
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/**
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* @dev get Aave Protocol Data Provider
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*/
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function getAaveV2DataProvider() internal pure returns (AaveV2DataProviderInterface) {
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return AaveV2DataProviderInterface(0x057835Ad21a177dbdd3090bB1CAE03EaCF78Fc6d); //mainnet
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// return AaveV2DataProviderInterface(0x744C1aaA95232EeF8A9994C4E0b3a89659D9AB79); //kovan
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}
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/**
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* @dev get Referral Code
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*/
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function getReferralCode() internal pure returns (uint16) {
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return 3228;
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}
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/**
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* @dev enter compound market
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*/
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@ -129,6 +279,42 @@ contract Helpers is DSMath {
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ComptrollerInterface(getComptrollerAddress()).enterMarkets(cErc20);
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}
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function getBorrowRateMode(AaveV1Interface aave, address token) internal view returns (uint rateMode) {
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(, , , rateMode, , , , , , ) = aave.getUserReserveData(token, address(this));
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}
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function getWithdrawBalance(AaveV1Interface aave, address token) internal view returns (uint bal) {
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(bal, , , , , , , , , ) = aave.getUserReserveData(token, address(this));
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}
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function getPaybackBalance(AaveV1Interface aave, address account, address token) internal view returns (uint bal, uint fee) {
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(, bal, , , , , fee, , , ) = aave.getUserReserveData(token, account);
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}
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function getTotalBorrowBalance(AaveV1Interface aave, address account, address token) internal view returns (uint amt) {
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(, uint bal, , , , , uint fee, , , ) = aave.getUserReserveData(token, account);
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amt = add(bal, fee);
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}
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function getIsColl(AaveDataProviderInterface aaveData, address token) internal view returns (bool isCol) {
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(, , , , , , , , isCol) = aaveData.getUserReserveData(token, address(this));
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}
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function getIsCollV2(AaveV2DataProviderInterface aaveData, address token) internal view returns (bool isCol) {
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(, , , , , , , , isCol) = aaveData.getUserReserveData(token, address(this));
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}
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function convertEthToWeth(bool isEth, TokenInterface token, uint amount) internal {
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if(isEth) token.deposit.value(amount)();
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}
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function convertWethToEth(bool isEth, TokenInterface token, uint amount) internal {
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if(isEth) {
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token.approve(address(token), amount);
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token.withdraw(amount);
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}
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}
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/**
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* @dev Get Uint value from InstaMemory Contract.
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*/
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@ -220,3 +406,81 @@ contract CompoundHelpers is Helpers {
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}
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}
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}
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contract AaveV1Helpers is CompoundHelpers {
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function _aaveV1Borrow(
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AaveV1Interface aave,
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uint length,
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address[] memory tokens,
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uint[] memory amts,
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uint[] memory rateModes
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) internal {
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for (uint i = 0; i < length; i++) {
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if (amts[i] > 0) {
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aave.borrow(tokens[i], amts[i], rateModes[i], getReferralCode());
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}
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}
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}
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function _aaveV1Deposit(
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AaveV1Interface aave,
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uint length,
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address[] memory tokens,
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uint[] memory amts
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) internal {
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for (uint i = 0; i < length; i++) {
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if (amts[i] > 0) {
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uint ethAmt;
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bool isEth = tokens[i] == getEthAddr();
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if (isEth) {
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ethAmt = amts[i];
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} else {
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TokenInterface tokenContract = TokenInterface(tokens[i]);
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tokenContract.approve(address(aave), amts[i]);
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}
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aave.deposit.value(ethAmt)(tokens[i], amts[i], getReferralCode());
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if (!getIsColl(aave, tokens[i]))
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aave.setUserUseReserveAsCollateral(token, true);
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}
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}
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}
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function _aaveV1Withdraw(
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AaveV1CoreInterface aaveCore,
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uint length,
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address[] memory tokens,
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uint[] memory amts
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) internal {
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for (uint i = 0; i < length; i++) {
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if (amts[i] > 0) {
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ATokenV1Interface atoken = ATokenV1Interface(aaveCore.getReserveATokenAddress(tokens[i]));
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atoken.redeem(amts[i]);
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}
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}
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}
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function _aaveV1Payback(
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AaveV1Interface aave,
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uint length,
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address[] memory tokens,
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uint[] memory amts
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) internal {
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for (uint i = 0; i < length; i++) {
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if (amts[i] > 0) {
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uint ethAmt;
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bool isEth = tokens[i] == getEthAddr();
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if (isEth) {
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ethAmt = amts[i];
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} else {
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TokenInterface tokenContract = TokenInterface(tokens[i]);
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tokenContract.approve(address(aave), amts[i]);
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}
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aave.repay.value(ethAmt)(tokens[i], amts[i], payable(address(this)));
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}
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}
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}
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}
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