hardhat.config.ts

import "@nomicfoundation/hardhat-toolbox";
import "@nomicfoundation/hardhat-verify";
import "hardhat-deploy";
import type { HardhatUserConfig } from "hardhat/config";
import { vars } from "hardhat/config";
import type { NetworkUserConfig } from "hardhat/types";

// Run 'npx hardhat vars setup' to see the list of variables that need to be set

const mnemonic: string = vars.get("MNEMONIC");

const chainIds = {
  hardhat: 31337,
  mainnet: 146,
};

function getChainConfig(chain: keyof typeof chainIds): NetworkUserConfig {
  return {
    accounts: {
      count: 10,
      mnemonic,
      path: "m/44'/60'/0'/0",
    },
    chainId: chainIds[chain],
    url: "https://rpc.soniclabs.com",
  };
}

const config: HardhatUserConfig = {
  defaultNetwork: "hardhat",
  namedAccounts: {
    deployer: 6,
  },
  etherscan: {
    apiKey: {
      sonic: vars.get("ETHERSCAN_API_KEY", ""),
    },
    customChains: [
      {
        network: "sonic",
        chainId: 146,
        urls: {
          apiURL: "https://api.sonicscan.org/api",
          browserURL: "https://sonicscan.org",
        },
      },
    ],
  },
  gasReporter: {
    currency: "USD",
    enabled: true,
    excludeContracts: [],
    src: "./contracts",
  },
  networks: {
    hardhat: {
      accounts: {
        mnemonic,
      },
      chainId: chainIds.hardhat,
    },
    mainnet: getChainConfig("mainnet"),
  },
  paths: {
    artifacts: "./artifacts",
    cache: "./cache",
    sources: "./contracts",
    tests: "./test",
  },
  solidity: {
    version: "0.8.4",
    settings: {
      optimizer: {
        enabled: true,
        runs: 9999,
      },
      metadata: {
        bytecodeHash: "none",
      },
    },
  },
  typechain: {
    outDir: "typechain-types",
    target: "ethers-v6",
  },
};

export default config;