mirror of
https://github.com/Instadapp/dsa-connectors.git
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65 lines
2.0 KiB
Solidity
65 lines
2.0 KiB
Solidity
//SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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import { Basic } from "../../common/basic.sol";
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import './helpers.sol';
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/**
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* @title WSTETH.
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* @dev Wrap and Unwrap STETH.
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*/
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abstract contract WSTETHContract is Helpers, Basic {
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/**
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* @dev Deposit STETH into WSTETH.
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* @notice Wrap STETH into WSTETH
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* @param stethAmt The amount of STETH to deposit. (For max: `uint256(-1)`)
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* @param getId ID to retrieve STETH amount.
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* @param setId ID stores the amount of WSTETH deposited.
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*/
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function deposit(
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uint256 stethAmt,
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uint256 getId,
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uint256 setId
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) external returns (string memory _eventName, bytes memory _eventParam) {
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uint256 _amt = getUint(getId, stethAmt);
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_amt = _amt == uint(-1) ? _amt = stethContract.balanceOf(address(this)) : _amt;
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approve(stethContract, address(wstethContract), _amt);
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uint256 _wstethAmt = wstethContract.wrap(_amt);
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setUint(setId, _wstethAmt);
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_eventName = "LogDeposit(uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(_amt, _wstethAmt, getId, setId);
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}
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/**
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* @dev Withdraw STETH from WSTETH from Smart Account
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* @notice Unwrap STETH from WSTETH
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* @param wstethAmt The amount of WSTETH to withdraw. (For max: `uint256(-1)`)
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* @param getId ID to retrieve WSTETH amount.
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* @param setId ID stores the amount of STETH.
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*/
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function withdraw(
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uint256 wstethAmt,
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uint256 getId,
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uint256 setId
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) external returns (string memory _eventName, bytes memory _eventParam) {
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uint256 _amt = getUint(getId, wstethAmt);
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_amt = _amt == uint(-1) ? wstethContract.balanceOf(address(this)) : _amt;
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uint256 _stethAmt = wstethContract.unwrap(_amt);
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setUint(setId, _stethAmt);
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_eventName = "LogWithdraw(uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(_amt, _stethAmt, getId, setId);
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}
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}
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contract ConnectV2WSTETH is WSTETHContract {
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string constant public name = "WSTETH-v1.0";
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}
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