@kadena/hardhat-chainweb/src/server/runRPCNode.ts

Hardhat plugin for Kadena's Chainweb network

/* eslint-disable @typescript-eslint/no-explicit-any */
import {
  HardhatRuntimeEnvironment,
  EIP1193Provider,
  HardhatNetworkConfig,
} from 'hardhat/types';
import { ChainwebJsonRpcServer } from './server.js';
import fs from 'fs';
import { watchCompilerOutput } from 'hardhat/builtin-tasks/utils/watch';
import { normalizeHardhatNetworkAccountsConfig } from 'hardhat/internal/core/providers/util.js';
import picocolors from 'picocolors';

import {
  bytesToHex as bufferToHex,
  privateToAddress,
  toBytes,
  toChecksumAddress,
} from '@nomicfoundation/ethereumjs-util';
import { mapChainIdToRoute } from './utils';
import { getNetworkStem } from '../pure-utils.js';

export async function runRPCNode(
  taskArgs: any,
  hre: HardhatRuntimeEnvironment,
) {
  const { hostname: hostnameParam, port } = taskArgs;
  let hostname: string;
  if (hostnameParam !== undefined) {
    hostname = hostnameParam;
  } else {
    const insideDocker = fs.existsSync('/.dockerenv');
    if (insideDocker) {
      hostname = '0.0.0.0';
    } else {
      hostname = '127.0.0.1';
    }
  }

  const chainweb = hre.config.chainweb[hre.config.defaultChainweb];

  if (chainweb) {
    const providers: [chainId: number, provider: EIP1193Provider][] =
      await Promise.all(
        (await hre.chainweb.getChainIds()).map(
          async (cid) => [cid, await hre.chainweb.getProvider(cid)] as const,
        ),
      );
    const server = new ChainwebJsonRpcServer({
      port,
      hostname,
      providers,
    });

    await server.listen();

    const watchers = providers.map(([, provider]) => {
      return watchCompilerOutput(provider, hre.config.paths).catch((error) => {
        console.warn(
          "There was a problem watching the compiler output, changes in the contracts won't be reflected in the Hardhat Network. Run Hardhat with --verbose to learn more.",
        );

        console.log(
          "Compilation output can't be watched. Please report this to help us improve Hardhat.\n",
          error,
        );
      });
    });

    console.log(
      `Started HTTP and WebSocket ${picocolors.greenBright(`JSON-RPC`)} server at ${picocolors.greenBright(port)}\n`,
    );

    providers.forEach(([cid]) => {
      console.log(
        picocolors.greenBright(`chain ${cid}: `),
        picocolors.underline(
          picocolors.greenBright(
            `http://${hostname}:${port}${mapChainIdToRoute(cid)}`,
          ),
        ),
      );
    });

    providers.map(async ([cid]) => {
      const networkName = `${getNetworkStem(hre.config.defaultChainweb)}${cid}`;
      const networkConfig = hre.config.networks[networkName];
      console.log(`\nChain #${cid} Accounts`);
      console.log('=================');
      logHardhatNetworkAccounts(networkConfig as HardhatNetworkConfig);
    });

    await server.waitUntilClosed();
    await Promise.all(watchers.map((w) => w.then((w) => w?.close())));
  }
}
function logHardhatNetworkAccounts(networkConfig: HardhatNetworkConfig) {
  const warning = [
    '',
    'WARNING: These accounts, and their private keys, are publicly known',
    'Any funds sent to them on Mainnet or any other live network WILL BE LOST.',
    '',
  ]
    .map((t) => picocolors.bold(t))
    .join('\n');
  console.log(warning);

  const accounts = normalizeHardhatNetworkAccountsConfig(
    networkConfig.accounts,
  );

  for (const [index, account] of accounts.entries()) {
    const address = toChecksumAddress(
      bufferToHex(privateToAddress(toBytes(account.privateKey))),
    );

    const balance = (
      BigInt(account.balance) /
      BigInt(10) ** BigInt(18)
    ).toString(10);

    const privateKey = bufferToHex(toBytes(account.privateKey));
    const entry = `Account #${index}: ${address} (${balance} ETH)\nPrivate Key: ${privateKey}`;
    console.log(entry);
    console.log();
  }
  console.log(warning);
}