import { task } from "hardhat/config";
import "@nomiclabs/hardhat-waffle";
import "solidity-coverage";
import "hardhat-deploy";
import dotenv from "dotenv";
import type { HardhatUserConfig, HttpNetworkUserConfig } from "hardhat/types";



// Load environment variables.
dotenv.config();
const { NODE_URL, INFURA_KEY, MNEMONIC, ETHERSCAN_API_KEY, PK, SOLIDITY_VERSION, SOLIDITY_SETTINGS } = process.env;

// Test mnemonic
const DEFAULT_MNEMONIC =
  "candy maple cake sugar pudding cream honey rich smooth crumble sweet treat";

const sharedNetworkConfig: HttpNetworkUserConfig = {};
if (PK) {
  sharedNetworkConfig.accounts = [PK];
} else {
  sharedNetworkConfig.accounts = {
    mnemonic: MNEMONIC || DEFAULT_MNEMONIC,
  };
}

const primarySolidityVersion = SOLIDITY_VERSION || "0.8.0"


const userConfig: HardhatUserConfig = {
  paths: {
    artifacts: "artifacts",
    cache: "cache",
    deploy: "src/deploy",
    sources: "contracts",
  },
  solidity: {
    compilers: [
      { version: primarySolidityVersion },
      { version: "0.6.12" },
      { version: "0.5.17" },
      { version: "0.7.5" },
    ]
  },
  networks: {
    hardhat: {
      allowUnlimitedContractSize: true,
      blockGasLimit: 100000000,
      gas: 100000000
    },
    mainnet: {
      ...sharedNetworkConfig,
      url: `https://mainnet.infura.io/v3/${INFURA_KEY}`,
    },
    xdai: {
      ...sharedNetworkConfig,
      url: "https://xdai.poanetwork.dev",
    },
    ewc: {
      ...sharedNetworkConfig,
      url: `https://rpc.energyweb.org`,
    },
    rinkeby: {
      ...sharedNetworkConfig,
      url: `https://rinkeby.infura.io/v3/${INFURA_KEY}`,
    },
    goerli: {
      ...sharedNetworkConfig,
      url: `https://goerli.infura.io/v3/${INFURA_KEY}`,
    },
    kovan: {
      ...sharedNetworkConfig,
      url: `https://kovan.infura.io/v3/${INFURA_KEY}`,
    },
    volta: {
      ...sharedNetworkConfig,
      url: `https://volta-rpc.energyweb.org`,
    },
  },
  namedAccounts: {
    deployer: 0,
  },
  mocha: {
    timeout: 2000000,
  },
  etherscan: {
    apiKey: ETHERSCAN_API_KEY,
  },
}

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
export default userConfig