dsa-connectors/contracts/base/connectors/instapool_v4/main.sol
2023-08-28 18:11:38 +04:00

137 lines
4.8 KiB
Solidity

pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;
/**
* @title Instapool.
* @dev Inbuilt Flash Loan in DSA
*/
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { AccountInterface } from "./interfaces.sol";
import { Stores } from "../../common/stores.sol";
import { Variables } from "./variables.sol";
import { Events } from "./events.sol";
contract LiquidityResolver is Stores, Variables, Events {
using SafeERC20 for IERC20;
/**
* @dev Borrow Flashloan and Cast spells.
* @notice Borrow Flashloan and Cast spells.
* @param token Token Address.
* @param amt Token Amount.
* @param route Flashloan source route.
* @param data targets & data for cast.
* @param extraData to be kept bytes(0) in most cases. Can be useful to decide data for some particular routes
*/
function flashBorrowAndCast(
address token,
uint amt,
uint route,
bytes memory data,
bytes memory extraData
) external payable returns (string memory _eventName, bytes memory _eventParam) {
AccountInterface(address(this)).enable(address(instaPool));
(string[] memory _targets, bytes[] memory callDatas) = abi.decode(data, (string[], bytes[]));
bytes memory callData_ = abi.encodeWithSignature("cast(string[],bytes[],address)", _targets, callDatas, address(instaPool));
address[] memory tokens_ = new address[](1);
tokens_[0] = token;
uint[] memory amts_ = new uint[](1);
amts_[0] = amt;
instaPool.flashLoan(tokens_, amts_, route, callData_, extraData);
AccountInterface(address(this)).disable(address(instaPool));
_eventName = "LogFlashBorrow(address,uint256)";
_eventParam = abi.encode(token, amt);
}
/**
* @dev Return token to InstaPool.
* @notice Return token to InstaPool.
* @param token Token Address.
* @param amt Token Amount.
* @param getId Get token amount at this ID from `InstaMemory` Contract.
* @param setId Set token amount at this ID in `InstaMemory` Contract.
*/
function flashPayback(
address token,
uint amt,
uint getId,
uint setId
) external payable returns (string memory _eventName, bytes memory _eventParam) {
uint _amt = getUint(getId, amt);
IERC20 tokenContract = IERC20(token);
tokenContract.safeTransfer(address(instaPool), _amt);
setUint(setId, _amt);
_eventName = "LogFlashPayback(address,uint256)";
_eventParam = abi.encode(token, amt);
}
/**
* @dev Borrow multi-tokens Flashloan and Cast spells.
* @notice Borrow multi-tokens Flashloan and Cast spells.
* @param tokens_ Array of Token Addresses.
* @param amts_ Array of Token Amounts.
* @param route Flashloan source route.
* @param data targets & data for cast.
* @param extraData to be kept bytes(0) in most cases. Can be useful to decide data for some particular routes
*/
function flashMultiBorrowAndCast(
address[] memory tokens_,
uint[] memory amts_,
uint route,
bytes memory data,
bytes memory extraData
) external payable returns (string memory _eventName, bytes memory _eventParam) {
AccountInterface(address(this)).enable(address(instaPool));
(string[] memory _targets, bytes[] memory callDatas) = abi.decode(data, (string[], bytes[]));
bytes memory callData_ = abi.encodeWithSignature("cast(string[],bytes[],address)", _targets, callDatas, address(instaPool));
instaPool.flashLoan(tokens_, amts_, route, callData_, extraData);
AccountInterface(address(this)).disable(address(instaPool));
_eventName = "LogFlashMultiBorrow(address[],uint256[])";
_eventParam = abi.encode(tokens_, amts_);
}
/**
* @dev Return multi-tokens to InstaPool.
* @notice Return multi-tokens to InstaPool.
* @param tokens_ Array of Token Addresses.
* @param amts_ Array of Token Amounts.
* @param getIds Array of getId token amounts.
* @param setIds Array of setId token amounts.
*/
function flashMultiPayback(
address[] memory tokens_,
uint[] memory amts_,
uint[] memory getIds,
uint[] memory setIds
) external payable returns (string memory _eventName, bytes memory _eventParam) {
for (uint i = 0; i < tokens_.length; i++) {
amts_[i] = getUint(getIds[i], amts_[i]);
IERC20(tokens_[i]).safeTransfer(address(instaPool), amts_[i]);
setUint(setIds[i], amts_[i]);
}
_eventName = "LogFlashMultiPayback(address[],uint256[])";
_eventParam = abi.encode(tokens_, amts_);
}
}
contract ConnectV2InstaPoolV4 is LiquidityResolver {
string public name = "Instapool-v4";
}