hardhat.config.ts

import "@nomiclabs/hardhat-etherscan";
import "@nomiclabs/hardhat-waffle";
import "@typechain/hardhat";
import { config as dotenvConfig } from "dotenv";
import "hardhat-gas-reporter";
import "hardhat-packager";
import type { HardhatUserConfig } from "hardhat/config";
import type { NetworkUserConfig } from "hardhat/types";
import { resolve } from "path";
import "solidity-coverage";

import { getEnvVar } from "./helpers/env";
import "./tasks/deploy";

dotenvConfig({ path: resolve(__dirname, ".env") });

const chainIds = {
  avalanche: 43114,
  bsc: 56,
  goerli: 5,
  fantom: 250,
  hardhat: 31337,
  kovan: 42,
  mainnet: 1,
  "polygon-mainnet": 137,
  "polygon-mumbai": 80001,
  rinkeby: 4,
  ropsten: 3,
};

// Ensure that we have all the environment variables we need.
const mnemonic: string = getEnvVar("MNEMONIC");
const infuraApiKey: string = getEnvVar("INFURA_API_KEY");

function getChainConfig(chain: keyof typeof chainIds): NetworkUserConfig {
  let jsonRpcUrl: string;
  switch (chain) {
    case "avalanche":
      jsonRpcUrl = "https://api.avax.network/ext/bc/C/rpc";
      break;
    case "bsc":
      jsonRpcUrl = "https://bsc-dataseed1.binance.org";
      break;
    case "fantom":
      jsonRpcUrl = "https://rpc.ftm.tools";
      break;
    default:
      jsonRpcUrl = "wss://" + chain + ".infura.io/ws/v3/" + infuraApiKey;
  }
  return {
    accounts: {
      count: 10,
      mnemonic,
      path: "m/44'/60'/0'/0",
    },
    chainId: chainIds[chain],
    url: jsonRpcUrl,
  };
}

const config: HardhatUserConfig = {
  defaultNetwork: "hardhat",
  etherscan: {
    apiKey: {
      avalanche: process.env.SNOWTRACE_API_KEY,
      bsc: process.env.BSCSCAN_API_KEY,
      goerli: process.env.ETHERSCAN_API_KEY,
      kovan: process.env.ETHERSCAN_API_KEY,
      mainnet: process.env.ETHERSCAN_API_KEY,
      opera: process.env.FTMSCAN_API_KEY,
      polygon: process.env.POLYGONSCAN_API_KEY,
      polygonMumbai: process.env.POLYGONSCAN_API_KEY,
      rinkeby: process.env.ETHERSCAN_API_KEY,
      ropsten: process.env.ETHERSCAN_API_KEY,
    },
  },
  gasReporter: {
    currency: "USD",
    enabled: process.env.REPORT_GAS ? true : false,
    excludeContracts: [],
    src: "./contracts",
  },
  networks: {
    hardhat: {
      accounts: {
        mnemonic,
      },
      chainId: chainIds.hardhat,
    },
    avalanche: getChainConfig("avalanche"),
    bsc: getChainConfig("bsc"),
    fantom: getChainConfig("fantom"),
    goerli: getChainConfig("goerli"),
    kovan: getChainConfig("kovan"),
    mainnet: getChainConfig("mainnet"),
    "polygon-mainnet": getChainConfig("polygon-mainnet"),
    "polygon-mumbai": getChainConfig("polygon-mumbai"),
    rinkeby: getChainConfig("rinkeby"),
    ropsten: getChainConfig("ropsten"),
  },
  packager: {
    contracts: [
      "IPRBProxy",
      "IPRBProxyFactory",
      "IPRBProxyRegistry",
      "PRBProxy",
      "PRBProxyFactory",
      "PRBProxyRegistry",
    ],
    includeFactories: true,
  },
  paths: {
    artifacts: "./artifacts",
    cache: "./cache",
    sources: "./contracts",
    tests: "./test",
  },
  solidity: {
    version: "0.8.12",
    settings: {
      metadata: {
        bytecodeHash: "none",
      },
      optimizer: {
        enabled: true,
        runs: 1000,
      },
    },
  },
  typechain: {
    outDir: "src/types",
    target: "ethers-v5",
  },
};

export default config;