/** @type {import('expo/metro-config').MetroConfig} */
const { getDefaultConfig } = require('expo/metro-config');
const path = require('path');

const config = getDefaultConfig(__dirname);

// Add wasm asset support
config.resolver.assetExts.push('wasm');

// Fix for react-native-webrtc event-target-shim import warning
// The package doesn't properly export "./index" in its exports field
config.resolver.unstable_enablePackageExports = false;

// Support TypeScript path aliases (@/ -> ./src/)
config.resolver.alias = {
  '@': path.resolve(__dirname, 'src'),
};

// NOTE: enhanceMiddleware is marked as deprecated in Metro's types,
// but there's currently no official alternative for custom dev server headers.
// For production, configure COEP/COOP headers on your hosting platform.
// These headers are required for SharedArrayBuffer (used by expo-sqlite on web).
config.server.enhanceMiddleware = (middleware) => {
  return (req, res, next) => {
    res.setHeader('Cross-Origin-Embedder-Policy', 'credentialless');
    res.setHeader('Cross-Origin-Opener-Policy', 'same-origin');
    middleware(req, res, next);
  };
};

module.exports = config;