example-secret-santa/packages/hardhat/hardhat.config.ts

import { HardhatUserConfig } from "hardhat/config";
import "hardhat-deploy";
import * as dotenv from "dotenv";

// Optional: only import fhe plugin if available
try {
  require("@luxfhe/hardhat-plugin");
} catch {
  console.log("@luxfhe/hardhat-plugin not available, skipping...");
}

dotenv.config();

const config: HardhatUserConfig = {
  solidity: {
    version: "0.8.25",
    settings: {
      evmVersion: "cancun", // Required for FHE operations
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
  networks: {
    hardhat: {
      chainId: 31337,
    },
    "base-sepolia": {
      url: process.env.BASE_SEPOLIA_RPC_URL || "https://sepolia.base.org",
      accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
      chainId: 84532,
    },
    "arb-sepolia": {
      url: process.env.ARB_SEPOLIA_RPC_URL || "https://sepolia-rollup.arbitrum.io/rpc",
      accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
      chainId: 421614,
    },
  },
  namedAccounts: {
    deployer: {
      default: 0,
    },
  },
  paths: {
    sources: "./contracts",
    tests: "./test",
    cache: "./cache",
    artifacts: "./artifacts",
    deploy: "./deploy",
  },
};

export default config;