mirror of
https://github.com/Instadapp/dsa-connectors.git
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88 lines
2.9 KiB
Solidity
88 lines
2.9 KiB
Solidity
//SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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/**
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* @title Yearn V2.
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* @dev Vaults & yield.
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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 { YearnV2Interface } from "./interface.sol";
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abstract contract YearnResolver is Events, Basic {
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/**
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* @dev Deposit funds in the vault, issuing shares to recipient.
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* @notice This will deposit funds to a specific Yearn Vault.
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* @param vault The address of the vault to deposit funds into.
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* @param amt The amount of tokens to deposit.
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* @param getId ID to retrieve amt.
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* @param setId ID stores the amount of shares received.
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*/
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function deposit(
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address vault,
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uint256 amt,
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uint256 getId,
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uint256 setId
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, amt);
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YearnV2Interface yearn = YearnV2Interface(vault);
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address want = yearn.token();
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bool iswETH = want == wethAddr;
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TokenInterface tokenContract = TokenInterface(want);
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if (iswETH) {
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_amt = _amt == uint(-1) ? address(this).balance : _amt;
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convertEthToWeth(iswETH, tokenContract, _amt);
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} else {
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_amt = _amt == uint(-1) ? tokenContract.balanceOf(address(this)) : _amt;
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}
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approve(tokenContract, vault, _amt);
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uint256 _shares = yearn.deposit(_amt, address(this));
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setUint(setId, _shares);
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_eventName = "LogDeposit(address,uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(vault, _shares, _amt, getId, setId);
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}
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/**
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* @dev Withdraw shares from the vault.
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* @notice This will withdraw the share from a specific Yearn Vault.
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* @param vault The address of the vault to withdraw shares from.
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* @param amt The amount of shares to withdraw.
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* @param getId ID to retrieve amt.
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* @param setId ID stores the amount want token redeemed.
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*/
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function withdraw(
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address vault,
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uint256 amt,
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uint256 getId,
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uint256 setId
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, amt);
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YearnV2Interface vault = YearnV2Interface(vault);
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_amt = _amt == uint(-1) ? vault.balanceOf(address(this)) : _amt;
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uint256 _wantRedeemed = vault.withdraw(_amt, address(this));
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setUint(setId, _wantRedeemed);
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TokenInterface tokenContract = TokenInterface(vault.token());
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bool isWEth = vault.token() == wethAddr;
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convertWethToEth(isWEth, tokenContract, _amt);
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_eventName = "LogWithdraw(address,uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(vault, _amt, _wantRedeemed, getId, setId);
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}
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}
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contract ConnectV2YearnV2 is YearnResolver {
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string public constant name = "YearnV2-v1.0";
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}
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