hardhat.config.ts

import * as dotenv from "dotenv"

import type { HardhatUserConfig } from "hardhat/config"
import "@nomicfoundation/hardhat-toolbox"
import "@nomicfoundation/hardhat-chai-matchers"
import "hardhat-deploy"
import "hardhat-contract-sizer"
import "@appliedblockchain/chainlink-plugins-fund-link"
import "./tasks"

dotenv.config()

const MAINNET_RPC_URL =
    process.env.MAINNET_RPC_URL ||
    process.env.ALCHEMY_MAINNET_RPC_URL ||
    "https://eth-mainnet.alchemyapi.io/v2/your-api-key"
const POLYGON_MAINNET_RPC_URL =
    process.env.POLYGON_MAINNET_RPC_URL || "https://polygon-mainnet.alchemyapi.io/v2/your-api-key"
const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY
// optional
const MNEMONIC = process.env.MNEMONIC || "Your mnemonic"
const FORKING_BLOCK_NUMBER = process.env.FORKING_BLOCK_NUMBER

// Your API key for Etherscan, obtain one at https://etherscan.io/
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || "Your etherscan API key"
const POLYGONSCAN_API_KEY = process.env.POLYGONSCAN_API_KEY || "Your polygonscan API key"

/*
 * The solc compiler optimizer configuration. (The optimizer is disabled by default).
 *
 * Set `ENABLED_OPTIMIZER` in `.env` file to true for enabling.
 *
 * NOTE. It is enabled for commands `$ npm run deploy:...` by default.
 */
// `!!` to convert to boolean.
const ENABLED_OPTIMIZER: boolean = !!process.env.ENABLED_OPTIMIZER || false;
const REPORT_GAS: boolean = !!process.env.REPORT_GAS || false;
// `+` to convert to number.
const OPTIMIZER_RUNS: number = process.env.OPTIMIZER_RUNS ? +process.env.OPTIMIZER_RUNS : 200;


const config: HardhatUserConfig = {
    solidity: {
        compilers: [
            {
                version: "0.8.28",
                settings: {
                    optimizer: {
                        enabled: ENABLED_OPTIMIZER,
                        runs: OPTIMIZER_RUNS
                    }
                }
            },
            {
                version: "0.8.16",
                settings: {
                    optimizer: {
                        enabled: ENABLED_OPTIMIZER,
                        runs: OPTIMIZER_RUNS
                    }
                }
            },
        ],
    },
    defaultNetwork: "hardhat",
    networks: {
        hardhat: {
            hardfork: "merge",
            // If you want to do some forking set `enabled` to true
            forking: {
                url: MAINNET_RPC_URL,
                blockNumber: Number(FORKING_BLOCK_NUMBER),
                enabled: false,
            },
            chainId: 31337,
        },
        localhost: {
            chainId: 31337,
        },
        sepolia: {
            url: SEPOLIA_RPC_URL !== undefined ? SEPOLIA_RPC_URL : "",
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            //   accounts: {
            //     mnemonic: MNEMONIC,
            //   },
            saveDeployments: true,
            chainId: 11155111,
        },
        mainnet: {
            url: MAINNET_RPC_URL,
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            //   accounts: {
            //     mnemonic: MNEMONIC,
            //   },
            saveDeployments: true,
            chainId: 1,
        },
        polygon: {
            url: POLYGON_MAINNET_RPC_URL,
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            saveDeployments: true,
            chainId: 137,
        },
    },
    etherscan: {
        // yarn hardhat verify --network <NETWORK> <CONTRACT_ADDRESS> <CONSTRUCTOR_PARAMETERS>
        apiKey: {
            // npx hardhat verify --list-networks
            sepolia: ETHERSCAN_API_KEY,
            mainnet: ETHERSCAN_API_KEY,
            polygon: POLYGONSCAN_API_KEY,
        },
    },
    gasReporter: {
        enabled: REPORT_GAS,
        currency: "USD",
        outputFile: "gas-report.txt",
        noColors: true,
        // coinmarketcap: process.env.COINMARKETCAP_API_KEY,
    },
    contractSizer: {
        runOnCompile: false,
        only: ["APIConsumer", "KeepersCounter", "PriceConsumerV3", "RandomNumberConsumer"],
    },
    namedAccounts: {
        deployer: {
            default: 0, // here this will by default take the first account as deployer
            1: 0, // similarly on mainnet it will take the first account as deployer. Note though that depending on how hardhat network are configured, the account 0 on one network can be different than on another
        },
        feeCollector: {
            default: 1,
        },
    },
    mocha: {
        timeout: 200000, // 200 seconds max for running tests
    },
    typechain: {
        outDir: "typechain",
        target: "ethers-v5",
    },
}

export default config