// Metro (React Native bundler) needs help resolving:
//   1. Workspace packages (@dgb-wallet/*) — enable symlink traversal
//   2. Node built-ins (crypto, buffer, stream) used by bitcoinjs-lib —
//      shim them to browser-compatible replacements
const path = require('path');
const { getDefaultConfig } = require('expo/metro-config');

const projectRoot = __dirname;
const monorepoRoot = path.resolve(projectRoot, '../..');

const config = getDefaultConfig(projectRoot);

// Watch the monorepo so workspace packages hot-reload.
config.watchFolders = [monorepoRoot];

// Resolve modules from both the app's node_modules and the monorepo root.
config.resolver.nodeModulesPaths = [
  path.resolve(projectRoot, 'node_modules'),
  path.resolve(monorepoRoot, 'node_modules'),
];
config.resolver.disableHierarchicalLookup = true;

// Polyfills for Node built-ins used by bitcoinjs-lib et al.
config.resolver.extraNodeModules = {
  crypto: require.resolve('react-native-quick-crypto'),
  buffer: require.resolve('buffer'),
  stream: require.resolve('readable-stream'),
};

module.exports = config;