dsa-connectors/contracts/arbitrum/connectors/aave/v3-import-permit/main.sol
2022-05-07 22:07:58 +05:30

255 lines
6.3 KiB
Solidity

//SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;
/**
* @title Aave v3 import connector .
* @dev Import EOA's aave V3 position to DSA's aave v3 position
*/
import { TokenInterface, AccountInterface } from "../../../common/interfaces.sol";
import { AaveInterface, ATokenInterface } from "./interface.sol";
import "./helpers.sol";
import "./events.sol";
contract AaveV3ImportPermitResolver is AaveHelpers {
function _importAave(
address userAccount,
ImportInputData memory inputData,
SignedPermits memory permitData
) internal returns (string memory _eventName, bytes memory _eventParam) {
require(
AccountInterface(address(this)).isAuth(userAccount),
"user-account-not-auth"
);
require(inputData.supplyTokens.length > 0, "0-length-not-allowed");
ImportData memory data;
AaveInterface aave = AaveInterface(aaveProvider.getPool());
data = getBorrowAmounts(userAccount, aave, inputData, data);
data = getSupplyAmounts(userAccount, inputData, data);
// payback borrowed amount;
_PaybackStable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.stableBorrowAmts,
userAccount
);
_PaybackVariable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.variableBorrowAmts,
userAccount
);
//permit this address to transfer aTokens
_PermitATokens(
userAccount,
data.aTokens,
data._supplyTokens,
permitData.v,
permitData.r,
permitData.s,
permitData.expiry
);
// transfer atokens to this address;
_TransferAtokens(
data._supplyTokens.length,
aave,
data.aTokens,
data.supplyAmts,
data._supplyTokens,
userAccount
);
// borrow assets after migrating position
if (data.convertStable) {
_BorrowVariable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.totalBorrowAmtsWithFee
);
} else {
_BorrowStable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.stableBorrowAmtsWithFee
);
_BorrowVariable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.variableBorrowAmtsWithFee
);
}
_eventName = "LogAaveV3ImportWithPermit(address,bool,address[],address[],uint256[],uint256[],uint256[],uint256[])";
_eventParam = abi.encode(
userAccount,
inputData.convertStable,
inputData.supplyTokens,
inputData.borrowTokens,
inputData.flashLoanFees,
data.supplyAmts,
data.stableBorrowAmts,
data.variableBorrowAmts
);
}
function _importAaveWithCollateral(
address userAccount,
ImportInputData memory inputData,
SignedPermits memory permitData,
bool[] memory enableCollateral
) internal returns (string memory _eventName, bytes memory _eventParam) {
require(
AccountInterface(address(this)).isAuth(userAccount),
"user-account-not-auth"
);
require(inputData.supplyTokens.length > 0, "0-length-not-allowed");
require(enableCollateral.length == inputData.supplyTokens.length, "supplytokens-enableCol-len-not-same");
ImportData memory data;
AaveInterface aave = AaveInterface(aaveProvider.getPool());
data = getBorrowAmounts(userAccount, aave, inputData, data);
data = getSupplyAmounts(userAccount, inputData, data);
// payback borrowed amount;
_PaybackStable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.stableBorrowAmts,
userAccount
);
_PaybackVariable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.variableBorrowAmts,
userAccount
);
//permit this address to transfer aTokens
_PermitATokens(
userAccount,
data.aTokens,
data._supplyTokens,
permitData.v,
permitData.r,
permitData.s,
permitData.expiry
);
// transfer atokens to this address;
_TransferAtokensWithCollateral(
data._supplyTokens.length,
aave,
data.aTokens,
data.supplyAmts,
data._supplyTokens,
enableCollateral,
userAccount
);
// borrow assets after migrating position
if (data.convertStable) {
_BorrowVariable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.totalBorrowAmtsWithFee
);
} else {
_BorrowStable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.stableBorrowAmtsWithFee
);
_BorrowVariable(
data._borrowTokens.length,
aave,
data._borrowTokens,
data.variableBorrowAmtsWithFee
);
}
_eventName = "LogAaveV3ImportWithPermitAndCollateral(address,bool,address[],address[],uint256[],uint256[],uint256[],uint256[],bool[])";
_eventParam = abi.encode(
userAccount,
inputData.convertStable,
inputData.supplyTokens,
inputData.borrowTokens,
inputData.flashLoanFees,
data.supplyAmts,
data.stableBorrowAmts,
data.variableBorrowAmts,
enableCollateral
);
}
/**
* @dev Import aave V3 position .
* @notice Import EOA's aave V3 position to DSA's aave v3 position
* @param userAccount The address of the EOA from which aave position will be imported
* @param inputData The struct containing all the neccessary input data
* @param permitData The struct containing signed permit data like v,r,s,expiry
*/
function importAave(
address userAccount,
ImportInputData memory inputData,
SignedPermits memory permitData
)
external
payable
returns (string memory _eventName, bytes memory _eventParam)
{
(_eventName, _eventParam) = _importAave(
userAccount,
inputData,
permitData
);
}
/**
* @dev Import aave V3 position (with collateral).
* @notice Import EOA's aave V3 position to DSA's aave v3 position
* @param userAccount The address of the EOA from which aave position will be imported
* @param inputData The struct containing all the neccessary input data
* @param permitData The struct containing signed permit data like v,r,s,expiry
* @param enableCollateral The boolean array to enable selected collaterals in the imported position
*/
function importAaveWithCollateral(
address userAccount,
ImportInputData memory inputData,
SignedPermits memory permitData,
bool[] memory enableCollateral
)
external
payable
returns (string memory _eventName, bytes memory _eventParam)
{
(_eventName, _eventParam) = _importAaveWithCollateral(
userAccount,
inputData,
permitData,
enableCollateral
);
}
}
contract ConnectV2AaveV3ImportPermitArbitrum is AaveV3ImportPermitResolver {
string public constant name = "Aave-v3-import-permit-v1.1";
}