webpack.config.ts

import * as path from 'path';

// eslint-disable-next-line import/default
import CopyPlugin from 'copy-webpack-plugin';
import ForkTsCheckerWebpackPlugin from 'fork-ts-checker-webpack-plugin';
import svgToMiniDataURI from 'mini-svg-data-uri';
import { TsconfigPathsPlugin } from 'tsconfig-paths-webpack-plugin';
import {
  type Configuration as WebpackConfiguration,
  EnvironmentPlugin,
  type WebpackPluginInstance,
} from 'webpack';
import { BundleAnalyzerPlugin } from 'webpack-bundle-analyzer';
import type { Configuration as WebpackDevServerConfiguration } from 'webpack-dev-server';

import { ConsoleRemotePlugin } from '@openshift-console/dynamic-plugin-sdk-webpack';

import { ENVIRONMENT_DEFAULTS } from './environment-defaults';
import extensions from './plugin-extensions';
import pluginMetadata from './plugin-metadata';

type Configuration = {
  devServer?: WebpackDevServerConfiguration;
} & WebpackConfiguration;

const isAnalyzeBundle = process.env.ANALYZE_BUNDLE === 'true';

const config: Configuration = {
  context: path.resolve(__dirname, 'src'),
  devServer: {
    allowedHosts: 'all',
    client: {
      progress: true,
    },
    compress: true, // Enable gzip compression
    devMiddleware: {
      writeToDisk: true,
    },
    headers: {
      'Access-Control-Allow-Headers': 'X-Requested-With, Content-Type, Authorization',
      'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, PATCH, OPTIONS',
      'Access-Control-Allow-Origin': '*',
      'Cache-Control': 'no-store', // Jan-4-2024, workaround for a caching bug in bridge
      'Service-Worker-Allowed': '/', // Needed to support MockServiceWorker
    },
    historyApiFallback: true, // Better SPA routing support
    hot: true,
    port: parseInt(process.env.PORT ?? '9001', 10),
    static: ['./dist'],
  },
  devtool: 'source-map',
  entry: {},
  mode: 'development',
  module: {
    rules: [
      {
        exclude: [/node_modules/u, /__tests__/u, /__mocks__/u],
        test: /\.(?:jsx?|tsx?)$/u,
        use: [
          {
            loader: 'ts-loader',
            options: {
              experimentalWatchApi: true, // Faster incremental builds
              transpileOnly: true, // Skip type checking for faster builds
            },
          },
        ],
      },
      {
        test: /\.s?(?:css)$/u,
        use: ['style-loader', 'css-loader', 'sass-loader'],
      },
      {
        generator: {
          dataUrl: (content: Buffer) => {
            return svgToMiniDataURI(content.toString());
          },
        },
        test: /\.svg$/u,
        type: 'asset/inline',
      },
      {
        generator: {
          filename: 'assets/[name].[ext]',
        },
        test: /\.(?:png|jpg|jpeg|gif|woff2?|ttf|eot|otf)(?:\?.*$|$)/u,
        type: 'asset/resource',
      },
      {
        resolve: {
          fullySpecified: false,
        },
        test: /\.m?js/u,
      },
    ],
  },
  optimization: {
    chunkIds: 'named',
    minimize: false,
  },
  output: {
    chunkFilename: '[name]-chunk.js',
    filename: '[name]-bundle.js',
    path: path.resolve(__dirname, 'dist'),
  },
  plugins: [
    new ForkTsCheckerWebpackPlugin({
      async: true,
      devServer: true,
      typescript: {
        configFile: path.resolve(__dirname, 'tsconfig.json'),
        diagnosticOptions: {
          semantic: true,
          syntactic: true,
        },
      },
    }),
    new ConsoleRemotePlugin({
      extensions,
      pluginMetadata,
    }) as unknown as WebpackPluginInstance,
    new CopyPlugin({
      patterns: [{ from: '../locales', to: '../dist/locales' }],
    }),
    new EnvironmentPlugin(ENVIRONMENT_DEFAULTS),
    ...(isAnalyzeBundle
      ? [
          new BundleAnalyzerPlugin({
            analyzerMode: 'static',
            openAnalyzer: true,
            reportFilename: 'report.html',
          }) as unknown as WebpackPluginInstance,
        ]
      : []),
  ],
  resolve: {
    extensions: ['.ts', '.tsx', '.js', '.jsx'],
    plugins: [new TsconfigPathsPlugin({ baseUrl: '.' })],
  },
};

if (process.env.NODE_ENV === 'production') {
  config.mode = 'production';

  // Ensure `output` is initialized if undefined
  config.output ??= {};
  config.output.filename = '[name]-bundle-[hash].min.js';
  config.output.chunkFilename = '[name]-chunk-[chunkhash].min.js';

  // Ensure `optimization` is initialized if undefined
  config.optimization ??= {};
  config.optimization.chunkIds = 'deterministic';
  config.optimization.minimize = true;
}

export default config;