dsa-connectors/contracts/polygon/connectors/hop/helpers.sol
pradyuman-verma fc0c7f7910
minor fixing
2022-05-12 01:03:33 +05:30

56 lines
2.0 KiB
Solidity

//SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;
import { TokenInterface } from "../../common/interfaces.sol";
import { DSMath } from "../../common/math.sol";
import { Basic } from "../../common/basic.sol";
import "./interface.sol";
contract Helpers is DSMath, Basic {
/**
* @param token The address of token to be bridged.(For USDC: 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174)
* @param targetChainId The Id of the destination chain.(For MAINNET : 1)
* @param router The address of hop router.
* @param recipient The address to recieve the token on destination chain.
* @param amount The total amount sent by user (Includes bonder fee, destination chain Tx cost).
* @param bonderFee The fee to be recieved by bonder at destination chain.
* @param sourceAmountOutMin minimum amount of token out for swap on source chain.
* @param sourceDeadline The deadline for the source chain transaction (Recommended - Date.now() + 604800 (1 week))
* @param destinationAmountOutMin minimum amount of token out for bridge on target chain, zero for L1 bridging
* @param destinationDeadline The deadline for the target chain transaction (Recommended - Date.now() + 604800 (1 week)), zero for L1 bridging
*/
struct BridgeParams {
address token;
address router;
address recipient;
uint256 targetChainId;
uint256 amount;
uint256 bonderFee;
uint256 sourceAmountOutMin;
uint256 sourceDeadline;
uint256 destinationAmountOutMin;
uint256 destinationDeadline;
}
function _swapAndSend(BridgeParams memory params, bool isNative) internal {
IHopRouter router = IHopRouter(params.router);
uint256 nativeTokenAmt = isNative ? params.amount : 0;
if (!isNative) {
TokenInterface tokenContract = TokenInterface(params.token);
approve(tokenContract, params.router, params.amount);
}
router.swapAndSend{ value: nativeTokenAmt }(
params.targetChainId,
params.recipient,
params.amount,
params.bonderFee,
params.sourceAmountOutMin,
params.sourceDeadline,
params.destinationAmountOutMin,
params.destinationDeadline
);
}
}