metro.config.js

// filepath: /home/shobhin/Documents/sc2-mobile-app/metro.config.js
// Extend Expo's default Metro config so expo-doctor recognizes the file
// Also include a small polyfill for Array.prototype.toReversed to avoid
// crashes when running with older Node versions (some setups still use Node 18).

if (!Array.prototype.toReversed) {
  Object.defineProperty(Array.prototype, 'toReversed', {
    configurable: true,
    enumerable: false,
    writable: true,
    value: function toReversed() {
      return Array.prototype.slice.call(this).reverse();
    },
  });
}

const { getDefaultConfig } = require('expo/metro-config');

// Get the default config from Expo
const config = getDefaultConfig(__dirname);

// Ensure resolver exists
config.resolver = config.resolver || {};

// Safely add 3D model asset extensions without duplicating
const existingAssetExts = Array.isArray(config.resolver.assetExts)
  ? config.resolver.assetExts
  : [];
const extraExts = ['glb', 'gltf', 'obj', 'mtl', 'fbx', 'csv'];
config.resolver.assetExts = Array.from(new Set([...existingAssetExts, ...extraExts]));

// Prefer react-native exports to suppress some package.json export warnings
config.resolver.resolverMainFields = ['react-native', 'browser', 'main'];

module.exports = config;