WebJamApps/JaMmusic

/* eslint-disable @typescript-eslint/no-var-requires */
require('dotenv').config();
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const {
  BundleAnalyzerPlugin
} = require('webpack-bundle-analyzer');
const {
  ProvidePlugin
} = require('webpack');
const webpack = require('webpack');

// config helpers:
const ensureArray = (config) => config && (Array.isArray(config) ? config : [config]) || []; // eslint-disable-line no-mixed-operators
const when = (condition, config, negativeConfig) => (condition ? ensureArray(config) : ensureArray(negativeConfig));

// primary config:
const nodeEnv = process.env.NODE_ENV || 'development';
const title = 'Web Jam LLC';
const outDir = path.resolve(__dirname, 'dist');
const srcDir = path.resolve(__dirname, 'src');
const baseUrl = '/';
const envVars = ['APP_NAME', 'SCS_PORT', 'SCS_HOST', 'SOCKETCLUSTER_SECURE', 'NODE_ENV',
  'BackendUrl', 'GoogleClientId', 'userRoles', 'HashString', 'TINY_KEY'
];
let googleMapKey = '';
if (nodeEnv === 'development') envVars.push('PORT');
if (process.env.BackendUrl === 'http://localhost:7000') {
  googleMapKey = `https://maps.googleapis.com/maps/api/js?key=${process.env.GOOGLE_MAPS_API_KEY}&loading=async&callback=Function.prototype`;
}
module.exports = (env) => ({
  resolve: {
    alias: { src: srcDir },
    extensions: ['.js', '.jsx', '.ts', '.tsx'],
    fallback: { // needed for jwt-simple
      crypto: require.resolve('crypto-browserify'),
      stream: require.resolve('stream-browserify'),
      util: require.resolve('util/'),
      buffer: require.resolve("buffer"),
      vm: require.resolve('vm-browserify')
    },
  },
  optimization: {
    runtimeChunk: 'single'
  },
  watchOptions: { ignored: /node_modules/ },
  entry: {
    app: [`${srcDir}/Main.tsx`],
  },

  mode: env.production ? 'production' : 'development',

  output: {
    path: outDir,
    publicPath: baseUrl,
    filename: env.production ? '[name].[chunkhash].bundle.js' : '[name].[fullhash].bundle.js',
    chunkFilename: env.production ? '[name].[chunkhash].chunk.js' : '[name].[fullhash].chunk.js',
  },

  performance: {
    hints: false
  },

  devServer: {
    devMiddleware: { writeToDisk: true },
    static: outDir,
    hot: true,
    historyApiFallback: { // serve index.html for all 404 (required for push-state)
      rewrites: [{
        from: /^\/$/,
        to: '/'
      },
      {
        from: /^\//,
        to: '/'
      },
      {
        from: /./,
        to: '/'
      },
      ],
    },
    port: parseInt(process.env.PORT, 10),
  },

  devtool: env.production ? 'nosources-source-map' : 'source-map',

  optimization: {
    splitChunks: {
      cacheGroups: {
        styles: {
          name: 'styles',
          test: /\.css$/i,
          chunks: 'all',
          enforce: true,
        },
      },
    },
  },

  module: {
    rules: [
      {
        test: /\.(ts|tsx)?$/,
        loader: "ts-loader",
        exclude: env.production ? [/node_modules/, /test/] : /node_modules/,
        options: {
          configFile: env.production ? "tsconfig.build.json" : "tsconfig.json"
        }
      },
      {
        enforce: 'pre',
        test: /\.js$/,
        loader: 'source-map-loader',
      },
      // SCSS required in JS/TS files should use the style-loader that auto-injects it into the website
      // only when the issuer is a .js/.ts file, so the loaders are not applied inside html templates
      {
        test: /\.scss$/,
        use: [
          process.env.NODE_ENV !== 'production' ? 'style-loader' : MiniCssExtractPlugin.loader,
          'css-loader', // translates CSS into CommonJS
          'sass-loader', // compiles Sass to CSS, using dart sass
        ],
      },
      // Still needed for some node modules that use CSS
      {
        test: /\.css$/i,
        use: [MiniCssExtractPlugin.loader, 'css-loader'],
      },
      {
        test: /\.html$/i,
        loader: 'html-loader'
      }, // eslint-disable-next-line no-useless-escape
      // embed small images and fonts as Data Urls and larger ones as files:
      {
        test: /\.(png|gif|jpg|cur)$/i,
        loader: 'url-loader',
        options: {
          limit: 8192
        }
      },
      {
        test: /\.woff2(\?v=[0-9]\.[0-9]\.[0-9])?$/i,
        loader: 'url-loader',
        options: {
          limit: 10000,
          mimetype: 'application/font-woff2'
        }
      },
      {
        test: /\.woff(\?v=[0-9]\.[0-9]\.[0-9])?$/i,
        loader: 'url-loader',
        options: {
          limit: 10000,
          mimetype: 'application/font-woff'
        }
      },
      // load these fonts normally, as files:
      {
        test: /\.(ttf|eot|svg|otf)(\?v=[0-9]\.[0-9]\.[0-9])?$/i,
        loader: 'file-loader'
      },
    ],
  },

  plugins: [
    new ProvidePlugin({
      Buffer: ['buffer', 'Buffer'],
      process: 'process/browser.js',
    }),
    new HtmlWebpackPlugin({
      template: `${srcDir}/index.ejs`,
      minify: env.production ? {
        removeComments: true,
        collapseWhitespace: true
      } : undefined,
      metadata: {
        title,
        baseUrl,
        googleMapKey
      },
    }),
    new MiniCssExtractPlugin({
      filename: '[name].[contenthash].css',
    }),
    new CopyPlugin({
      patterns: [{
        from: 'static/favicon.ico',
        to: 'favicon.ico'
      },
      {
        from: 'static/imgs',
        to: 'static/imgs'
      },
      ],
    }),
    new webpack.EnvironmentPlugin(envVars),
    ...when(env.analyze, new BundleAnalyzerPlugin()),
  ],
});