hardhat.config.ts

import * as dotenv from "dotenv";

import { task, HardhatUserConfig} from "hardhat/config";
import { HttpNetworkUserConfig } from "hardhat/types";

import "@nomiclabs/hardhat-etherscan";
import "@nomiclabs/hardhat-waffle";
import "@typechain/hardhat";
import "hardhat-gas-reporter";
import "solidity-coverage";
import "hardhat-deploy";
import "hardhat-deploy-tenderly";
import "hardhat-contract-sizer";

dotenv.config();

const infuraNetwork = (
	accounts: any, 
	network: string,
	chainId?: number,
	gas?: number
): HttpNetworkUserConfig => {
	return {
		url: `https://${network}.infura.io/v3/${process.env.PROJECT_ID}`,
		chainId,
		gas,
		accounts,
		gasPrice: 200000000000,
	}
}

const config: HardhatUserConfig = {
	solidity: {
		compilers: [
			{
				version: "0.5.16",
				settings: {
					optimizer: {
						enabled: true
					},
				},
			},
			{
				version: "0.6.6",
				settings: {
					optimizer: {
						enabled: true
					},
				},
			},
			{
				version: "0.7.6",
				settings: {
					optimizer: {
						enabled: true
					},
				},
			},
			{
				version: "0.8.0",
				settings: {
					optimizer: {
						enabled: true
					},
				},
			},
			{
				version: "0.8.2",
				settings: {
					optimizer: {
						enabled: true
					},
				},
			}
		],
	},
	networks: {
		mainnet: infuraNetwork(
			process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [], 
			"mainnet", 
			1, 
			6283185,
		),
		goerli: infuraNetwork(
			process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [], 
			"goerli", 
			5, 
			6283185
		),
		polygon: {
			url: "https://polygon-rpc.com",
			chainId: 137,
			accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
			gasPrice: 400000000000 
		},
		mumbai: {
			url: "https://rpc-mumbai.maticvigil.com",
			chainId: 80001,
			accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
		},
		bsc: {
			url: "https://bsc-dataseed.binance.org/",
			chainId: 56,
			gasPrice: 20000000000,
			accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
		},
		bsc_testnet: {
			url: "https://data-seed-prebsc-1-s1.binance.org:8545",
			chainId: 97,
			accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
		},
	},	
  	paths: {
		artifacts: "artifacts",
		deploy: "deploy",
		deployments: "deployments",
  	},
  	typechain: {
		outDir: "src/types",
		target: "ethers-v5",
  	},
  	namedAccounts: {
		deployer: {
			default: 0,
		},
  	},
  	gasReporter: {
		// enabled: process.env.REPORT_GAS !== undefined,
		enabled: true,
		currency: "USD",
  	},
  	etherscan: {
		apiKey: process.env.ETHERSCAN_API_KEY,
  	},
};

export default config;