1  import { ethers, Contract, ContractFactory, Wallet } from "ethers";
 2  import priceOracleArtifact from "../out/PriceOracle.sol/PriceOracle.json" assert { type: 'json' };
 3  import gasBrokerArtifact from "../out/GasBroker.sol/GasBroker.json" assert { type: 'json' };
 4  import fundUSDCArtifact from "../out/FundUSDC.sol/FundUSDC.json" assert { type: 'json' };
 5  import config from "./config.js";
 6  
 7  const { PROVIDER_URL, SIGNER_PRIVATE_KEY, CUSTOMER_ADDRESS } = config;
 8  
 9  
10  const CHAIN_ID = 137;
11  const ONE_ETH = 10n ** 18n;
12  
13  const provider = new ethers.providers.JsonRpcProvider(PROVIDER_URL);
14  const signer = new Wallet(SIGNER_PRIVATE_KEY, provider);
15  const USDC = "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359";
16  
17  const ERC20abi = [
18    "function balanceOf(address) external view returns (uint256)",
19    "function transfer(address, uint256) external returns (bool)"
20  ]
21  const usdcContract = new Contract(USDC, ERC20abi, provider);
22  
23  
24  async function setUp() {
25    const priceOracleContract = await deployContract('PriceOracle', priceOracleArtifact);
26    const priceOracleAddress = priceOracleContract.address;
27    
28    await deployContract('GasBroker', gasBrokerArtifact, CHAIN_ID, priceOracleAddress);
29  
30    const fundUSDCcontract = await deployContract('FundUSDC', fundUSDCArtifact);
31    
32    //fund wallet with USDC
33    let tx = await fundUSDCcontract.swapExactOutputSingle(10e6, 100n*ONE_ETH, { value: 100n*ONE_ETH });
34    await tx.wait();
35  
36    console.log(`Deployer USDC ballance is ${await usdcContract.balanceOf(signer.address)}`);
37    tx = await usdcContract.connect(signer).transfer(CUSTOMER_ADDRESS, 10e6);
38    await tx.wait();
39    console.log(`Customer USDC ballance is ${await usdcContract.balanceOf(CUSTOMER_ADDRESS)}`);
40    console.log(`Customer ETH ballance is ${await provider.getBalance(CUSTOMER_ADDRESS)}`);
41  
42  }
43  
44  async function deployContract(name, artifact, ...constructorArgs) {
45    const { abi, bytecode } = artifact
46    const factory = new ContractFactory(abi, bytecode, signer);
47    const contract = await factory.deploy(...constructorArgs);
48    await contract.deployTransaction.wait();
49    console.log(`Contract ${name} deployed at address ${await contract.address}`);
50    return contract;
51  }
52  
53  setUp();
54