hardhat.config.ts

import "@nomiclabs/hardhat-ethers";
import "@nomiclabs/hardhat-etherscan";
import "@nomiclabs/hardhat-waffle";
import "@typechain/hardhat";
import * as dotenv from "dotenv";
import { Wallet } from "ethers";
import "hardhat-deploy";
import "hardhat-gas-reporter";
import { HardhatUserConfig } from "hardhat/config";
import "solidity-coverage";

dotenv.config();

const MNEMONIC =
  process.env.MNEMONIC ||
  "fox sight canyon orphan hotel grow hedgehog build bless august weather swarm";

const INFURA_KEY = process.env.INFURA_KEY || "";
const ALCHEMY_KEY = process.env.ALCHEMY_KEY || "";

const MAINNET_FORK = process.env.MAINNET_FORK === "true";
const FORKING_BLOCK = parseInt(process.env.FORKING_BLOCK || "");

const mainnetFork =
  MAINNET_FORK && FORKING_BLOCK
    ? {
        blockNumber: FORKING_BLOCK,
        url: ALCHEMY_KEY
          ? `https://eth-mainnet.alchemyapi.io/v2/${ALCHEMY_KEY}`
          : `https://main.infura.io/v3/${INFURA_KEY}`,
      }
    : undefined;

const accounts = Array.from(Array(20), (_, index) => {
  const wallet = Wallet.fromMnemonic(MNEMONIC, `m/44'/60'/0'/0/${index}`);
  return {
    privateKey: wallet.privateKey,
    balance: "1000000000000000000000000",
  };
});
accounts[19] = {
  privateKey:
    "a76c3fe18125f9d784d95ccd8e0acb15e34c118511cfa158172d9b44820f260b",
  balance: "1000000000000000000000000",
};

const LOCAL_CHAIN_ID = 31337;

const config: HardhatUserConfig = {
  solidity: {
    compilers: [
      {
        version: "0.8.4",
      },
    ],
  },
  typechain: {
    outDir: "types",
  },
  etherscan: {
    apiKey: process.env.INFURA_KEY,
  },
  defaultNetwork: "hardhat",
  paths: {
    sources: "./package/contracts",
  },
  networks: {
    hardhat: {
      live: false,
      hardfork: "london",
      chainId: LOCAL_CHAIN_ID,
      throwOnTransactionFailures: true,
      throwOnCallFailures: true,
      accounts,
      forking: mainnetFork,
      saveDeployments: false,
    },
    ganache: {
      live: false,
      url: "http://ganache:8545",
      accounts: accounts.map((account) => account.privateKey),
    },
    coverage: {
      live: false,
      url: "http://localhost:8555",
    },
  },
};

export default config;