mirror of
https://github.com/Instadapp/dsa-connectors.git
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140 lines
3.7 KiB
Solidity
140 lines
3.7 KiB
Solidity
//SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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/**
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* @title InstaLite Connector
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* @dev Supply, Withdraw & Deleverage
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*/
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import { TokenInterface } from "../../common/interfaces.sol";
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import { Basic } from "../../common/basic.sol";
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import { Events } from "./events.sol";
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import { IInstaLite } from "./interface.sol";
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abstract contract InstaLiteConnector is Events, Basic {
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TokenInterface internal constant astethToken = TokenInterface(0x1982b2F5814301d4e9a8b0201555376e62F82428);
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/**
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* @dev Supply ETH/ERC20
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* @notice Supply a token into Instalite.
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* @param vaultAddr Address of instaLite Contract.
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* @param token The address of the token to be supplied. (For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param amt The amount of token to be supplied. (For max: `uint256(-1)`)
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* @param getId ID to retrieve amt.
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* @param setIds array of IDs to store the amount of tokens deposited.
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*/
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function supply(
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address vaultAddr,
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address token,
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uint256 amt,
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uint256 getId,
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uint256[] memory setIds
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)
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public
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payable
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returns (string memory _eventName, bytes memory _eventParam)
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{
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uint256 _amt = getUint(getId, amt);
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bool isEth = token == ethAddr;
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uint256 vTokenAmt;
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if (isEth) {
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_amt = _amt == uint256(-1) ? address(this).balance : _amt;
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vTokenAmt = IInstaLite(vaultAddr).supplyEth{ value: amt }(address(this));
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} else {
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TokenInterface tokenContract = TokenInterface(token);
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_amt = _amt == uint256(-1)
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? tokenContract.balanceOf(address(this))
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: _amt;
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approve(tokenContract, vaultAddr, _amt);
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vTokenAmt = IInstaLite(vaultAddr).supply(token, _amt, address(this));
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}
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setUint(setIds[0], _amt);
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setUint(setIds[1], vTokenAmt);
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_eventName = "LogSupply(address,address,uint256,uint256,uint256,uint256[])";
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_eventParam = abi.encode(
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vaultAddr,
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token,
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vTokenAmt,
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_amt,
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getId,
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setIds
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);
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}
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/**
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* @dev Withdraw ETH/ERC20
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* @notice Withdraw deposited tokens from Instalite.
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* @param vaultAddr Address of vaultAddress Contract.
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* @param amt The amount of the token to withdraw.
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* @param getId ID to retrieve amt.
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* @param setIds array of IDs to stores the amount of tokens withdrawn.
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*/
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function withdraw(
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address vaultAddr,
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uint256 amt,
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uint256 getId,
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uint256[] memory setIds
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)
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external
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payable
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returns (string memory _eventName, bytes memory _eventParam)
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{
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uint256 _amt = getUint(getId, amt);
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uint256 vTokenAmt = IInstaLite(vaultAddr).withdraw(_amt, address(this));
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setUint(setIds[0], _amt);
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setUint(setIds[1], vTokenAmt);
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_eventName = "LogWithdraw(address,uint256,uint256,uint256,uint256[])";
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_eventParam = abi.encode(vaultAddr, _amt, vTokenAmt, getId, setIds);
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}
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/**
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* @dev Deleverage vault. Pays back ETH debt and get stETH collateral. 1:1 swap of ETH to stETH
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* @notice Deleverage Instalite vault.
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* @param vaultAddr Address of vaultAddress Contract.
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* @param amt The amount of the token to deleverage.
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* @param getId ID to retrieve amt.
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* @param setId ID to set amt.
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*/
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function deleverage(
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address vaultAddr,
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uint256 amt,
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uint256 getId,
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uint256 setId
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)
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external
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payable
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returns (string memory _eventName, bytes memory _eventParam)
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{
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uint256 _amt = getUint(getId, amt);
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uint initialBal = astethToken.balanceOf(address(this));
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approve(TokenInterface(wethAddr), vaultAddr, _amt);
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IInstaLite(vaultAddr).deleverage(_amt);
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uint finalBal = astethToken.balanceOf(address(this));
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require(amt <= (1e9 + finalBal - initialBal), "lack-of-steth");
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setUint(setId, _amt);
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_eventName = "LogDeleverage(address,uint256,uint256,uint256)";
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_eventParam = abi.encode(vaultAddr, _amt, getId, setId);
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}
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}
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contract ConnectV2InstaLite is InstaLiteConnector {
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string public constant name = "InstaLite-v1";
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}
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