Instadapp/dsa-resolvers-deprecated
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Done with aave v2 resolver

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This commit is contained in:
Thrilok Kumar 2020-12-04 02:11:15 +05:30
parent 0ab1acaaaf
commit eeb35f556a
1 changed files with 79 additions and 14 deletions
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93
contracts/protocols/aave_v2.sol
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@ -64,6 +64,11 @@ interface AavePriceOracle {
function getFallbackOracle() external view returns(uint256);
}
interface ChainLinkInterface {
function latestAnswer() external view returns (int256);
function decimals() external view returns (uint256);
}
contract DSMath {
function add(uint x, uint y) internal pure returns (uint z) {
@ -100,22 +105,48 @@ contract DSMath {
}
contract AaveHelpers is DSMath {
/**
* @dev Return ethereum address
*/
function getEthAddr() internal pure returns (address) {
return 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE; // ETH Address
}
/**
* @dev Return Weth address
*/
function getWethAddr() internal pure returns (address) {
return 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; // Mainnet WETH Address
// return 0xd0A1E359811322d97991E03f863a0C30C2cF029C; // Kovan WETH Address
}
/**
* @dev get Aave Provider Address
*/
function getAaveAddressProvider() internal pure returns (address) {
return 0x652B2937Efd0B5beA1c8d54293FC1289672AFC6b; // Kovan
return 0xB53C1a33016B2DC2fF3653530bfF1848a515c8c5; // Mainnet
// return 0x652B2937Efd0B5beA1c8d54293FC1289672AFC6b; // Kovan
}
/**
* @dev get Aave Protocol Data Provider
*/
function getAaveProtocolDataProvider() internal pure returns (address) {
return 0x744C1aaA95232EeF8A9994C4E0b3a89659D9AB79; // Kovan
return 0x057835Ad21a177dbdd3090bB1CAE03EaCF78Fc6d; // Mainnet
// return 0x744C1aaA95232EeF8A9994C4E0b3a89659D9AB79; // Kovan
}
/**
* @dev get Chainlink ETH price feed Address
*/
function getChainlinkEthFeed() internal pure returns (address) {
return 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419; //mainnet
// return 0x9326BFA02ADD2366b30bacB125260Af641031331; //kovan
}
struct AaveUserTokenData {
uint tokenPrice;
uint tokenPriceInEth;
uint tokenPriceInUsd;
uint supplyBalance;
uint stableBorrowBalance;
uint variableBorrowBalance;
@ -132,6 +163,7 @@ contract AaveHelpers is DSMath {
uint currentLiquidationThreshold;
uint ltv;
uint healthFactor;
uint ethPriceInUsd;
}
struct AaveTokenData {
@ -145,6 +177,24 @@ contract AaveHelpers is DSMath {
bool isFrozen;
}
struct TokenPrice {
uint priceInEth;
uint priceInUsd;
}
function getTokensPrices(AaveAddressProvider aaveAddressProvider, address[] memory tokens)
internal view returns(TokenPrice[] memory tokenPrices, uint ethPrice) {
uint[] memory _tokenPrices = AavePriceOracle(aaveAddressProvider.getPriceOracle()).getAssetsPrices(tokens);
ethPrice = uint(ChainLinkInterface(getChainlinkEthFeed()).latestAnswer());
tokenPrices = new TokenPrice[](_tokenPrices.length);
for (uint i = 0; i < _tokenPrices.length; i++) {
tokenPrices[i] = TokenPrice(
_tokenPrices[i],
wmul(_tokenPrices[i], uint(ethPrice) * 10 ** 10)
);
}
}
function collateralData(
AaveProtocolDataProvider aaveData,
address token
@ -167,7 +217,8 @@ contract AaveHelpers is DSMath {
AaveProtocolDataProvider aaveData,
address user,
address token,
uint price
uint tokenPriceInEth,
uint tokenPriceInUsd
) internal view returns(AaveUserTokenData memory tokenData) {
(
tokenData.supplyBalance,
@ -186,11 +237,12 @@ contract AaveHelpers is DSMath {
AaveTokenData memory aaveTokenData = collateralData(aaveData, token);
tokenData.tokenPrice = price;
tokenData.tokenPriceInEth = tokenPriceInEth;
tokenData.tokenPriceInUsd = tokenPriceInUsd;
tokenData.aaveTokenData = aaveTokenData;
}
function getUserData(AaveLendingPool aave, address user)
function getUserData(AaveLendingPool aave, address user, uint ethPriceInUsd)
internal view returns (AaveUserData memory userData) {
(
uint256 totalCollateralETH,
@ -207,7 +259,8 @@ contract AaveHelpers is DSMath {
availableBorrowsETH,
currentLiquidationThreshold,
ltv,
healthFactor
healthFactor,
ethPriceInUsd
);
}
}
@ -215,18 +268,30 @@ contract AaveHelpers is DSMath {
contract Resolver is AaveHelpers {
function getPosition(address user, address[] memory tokens) public view returns(AaveUserTokenData[] memory, AaveUserData memory) {
AaveAddressProvider addrProvider = AaveAddressProvider(getAaveAddressProvider());
uint length = tokens.length;
address[] memory _tokens = new address[](length);
AaveUserTokenData[] memory tokensData = new AaveUserTokenData[](tokens.length);
uint[] memory tokenPrices = AavePriceOracle(addrProvider.getPriceOracle()).getAssetsPrices(tokens);
for (uint i = 0; i < tokens.length; i++) {
tokensData[i] = getTokenData(AaveProtocolDataProvider(getAaveProtocolDataProvider()), user, tokens[i], tokenPrices[i]);
for (uint i = 0; i < length; i++) {
_tokens[i] = tokens[i] == getEthAddr() ? getWethAddr() : tokens[i];
}
return (tokensData, getUserData(AaveLendingPool(addrProvider.getLendingPool()), user));
AaveUserTokenData[] memory tokensData = new AaveUserTokenData[](length);
(TokenPrice[] memory tokenPrices, uint ethPrice) = getTokensPrices(addrProvider, tokens);
for (uint i = 0; i < length; i++) {
tokensData[i] = getTokenData(
AaveProtocolDataProvider(getAaveProtocolDataProvider()),
user,
_tokens[i],
tokenPrices[i].priceInEth,
tokenPrices[i].priceInUsd
);
}
return (tokensData, getUserData(AaveLendingPool(addrProvider.getLendingPool()), user, ethPrice));
}
}
contract InstaAaveResolver is Resolver {
contract InstaAaveV2Resolver is Resolver {
string public constant name = "Aave-v2-Resolver";
}