// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {Script, console} from "forge-std/Script.sol";
import {UniswapV3ExternalUnwinder} from "../../contracts/flash/UniswapV3ExternalUnwinder.sol";

/**
 * @title DeployUniswapV3ExternalUnwinder
 * @notice Deploy UniswapV3ExternalUnwinder for quote-push unwind legs (cW* -> USDC on V3).
 *
 * Env:
 *   PRIVATE_KEY                        required
 *   UNISWAP_V3_SWAP_ROUTER_MAINNET     optional; defaults to legacy SwapRouter `0xE592...` on Ethereum mainnet
 *
 * Usage:
 *   forge script script/deploy/DeployUniswapV3ExternalUnwinder.s.sol:DeployUniswapV3ExternalUnwinder \
 *     --rpc-url $ETHEREUM_MAINNET_RPC --broadcast -vvvv
 */
contract DeployUniswapV3ExternalUnwinder is Script {
    /// @dev SwapRouter02 (`0x68b3…`) is multicall-based and does not expose the legacy `exactInputSingle` ABI used by `UniswapV3ExternalUnwinder`.
    address internal constant DEFAULT_UNISWAP_V3_ROUTER_MAINNET = 0xE592427A0AEce92De3Edee1F18E0157C05861564;

    function run() external {
        uint256 pk = vm.envUint("PRIVATE_KEY");
        address router = vm.envOr("UNISWAP_V3_SWAP_ROUTER_MAINNET", DEFAULT_UNISWAP_V3_ROUTER_MAINNET);
        address deployer = vm.addr(pk);

        console.log("Deployer:", deployer);
        console.log("Uniswap V3 router:", router);

        vm.startBroadcast(pk);
        UniswapV3ExternalUnwinder unwinder = new UniswapV3ExternalUnwinder(router);
        vm.stopBroadcast();

        console.log("UniswapV3ExternalUnwinder:", address(unwinder));
    }
}