// import { BundleAnalyzerPlugin } from 'webpack-bundle-analyzer'
import HtmlWebpackPlugin from 'html-webpack-plugin'
import webpack from 'webpack'
import { fileURLToPath } from 'url'
import { dirname } from 'path'

const __filename = fileURLToPath(import.meta.url)
const __dirname = dirname(__filename)

const isDevelopment = process.env.NODE_ENV !== 'production'

export default {
  entry: {
    app: './src/index.tsx',
    bugtracking: './src/utils/bugtracking.ts',
  },
  output: {
    chunkFilename: isDevelopment ? '[name].js' : '[name].[contenthash:8].js',
    filename: isDevelopment ? '[name].bundle.js' : '[name].[contenthash:8].bundle.js',
    path: `${__dirname}/build`,
    pathinfo: false,
  },
  optimization: {
    minimize: !isDevelopment,
    removeAvailableModules: false,
    removeEmptyChunks: false,
    runtimeChunk: isDevelopment ? false : 'single',
    splitChunks: isDevelopment ? false : {
      chunks: 'all',
      minSize: 30000,
      minChunks: 1,
      maxAsyncRequests: 5,
      maxInitialRequests: 3,
      automaticNameDelimiter: '~',
      cacheGroups: {
        vendors: {
          test: /[\\/]node_modules[\\/](react|react-dom|@material-ui|popper\.js|react|react-redux|prop-types|jss|redux|scheduler|react-transition-group)[\\/]/,
          name: 'vendors',
          chunks: 'all',
          priority: -10,
        },
        default: {
          name: 'default',
          minChunks: 2,
          priority: -20,
          reuseExistingChunk: true,
        },
      },
    },
  },
  devServer: {
    hot: true,
    liveReload: false,
  },
  target: 'electron-renderer',
  mode: isDevelopment ? 'development' : 'production',
  devtool: isDevelopment ? 'eval-cheap-module-source-map' : 'source-map',
  resolve: {
    extensions: ['.ts', '.mjs', '.m.js', '.tsx', '.js', '.json', '.node'],
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: [
          {
            loader: 'ts-loader',
            options: {
              transpileOnly: true,
              experimentalWatchApi: true,
            },
          },
        ],
        exclude: /node_modules/,
      },
      ...(isDevelopment ? [] : [{
        enforce: 'pre',
        test: /\.js$/,
        loader: 'source-map-loader',
        exclude: /node_modules\/ace-builds/,
      }]),
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.(png|jpg|gif)$/i,
        type: 'asset/resource',
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({ template: './index.html', file: './build/index.html', inject: false }),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'development'),
    }),
  ],
  externals: {},
  cache: {
    type: 'filesystem',
    buildDependencies: {
      config: [__filename],
    },
  },
  performance: {
    hints: isDevelopment ? false : 'warning',
  },
  stats: isDevelopment ? 'errors-warnings' : 'normal',
}