const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
const TerserPlugin = require('terser-webpack-plugin');

const isProduction = process.env.NODE_ENV === 'production';

module.exports = {
  mode: isProduction ? 'production' : 'development',
  entry: './src/react/index.js',

  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: (pathData) => {
      return pathData.chunk.name === 'main'
        ? 'static/js/bundle.js'
        : 'static/js/[name].[contenthash:8].js';
    },
    chunkFilename: 'static/js/chunk.[id].[contenthash:8].js',
    publicPath: '/',
    clean: true,
  },

  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: [
              ['@babel/preset-env', {
                targets: {
                  browsers: ['> 0.25%', 'not dead'],
                },
                modules: false,
              }],
              ['@babel/preset-react', {
                runtime: 'automatic',
              }],
            ],
            plugins: [
              '@babel/plugin-proposal-class-properties',
              '@babel/plugin-proposal-object-rest-spread',
            ],
          },
        },
      },
      {
        test: /\.css$/i,
        use: [
          isProduction ? MiniCssExtractPlugin.loader : 'style-loader',
          {
            loader: 'css-loader',
            options: {
              importLoaders: 1,
              modules: {
                auto: true,
                localIdentName: isProduction
                  ? '[hash:base64:8]'
                  : '[name]__[local]__[hash:base64:4]',
              },
            },
          },
          {
            loader: 'postcss-loader',
            options: {
              postcssOptions: {
                plugins: [
                  'autoprefixer',
                  isProduction && 'cssnano',
                ].filter(Boolean),
              },
            },
          },
        ],
      },
      {
        test: /\.(png|jpe?g|gif|svg|webp)$/i,
        type: 'asset/resource',
        generator: {
          filename: 'static/media/[name].[hash:8][ext]',
        },
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/i,
        type: 'asset/resource',
        generator: {
          filename: 'static/fonts/[name].[hash:8][ext]',
        },
      },
    ],
  },

  plugins: [
    ...(isProduction ? [
      new MiniCssExtractPlugin({
        filename: 'static/css/[name].[contenthash:8].css',
        chunkFilename: 'static/css/[name].[contenthash:8].chunk.css',
      }),
    ] : []),
  ],

  optimization: {
    minimize: isProduction,
    minimizer: [
      new TerserPlugin({
        terserOptions: {
          compress: {
            drop_console: isProduction,
            drop_debugger: isProduction,
          },
        },
      }),
      new CssMinimizerPlugin(),
    ],
    splitChunks: {
      chunks: 'all',
      cacheGroups: {
        vendor: {
          test: /[\\/]node_modules[\\/]/,
          name: 'vendor',
          chunks: 'all',
          enforce: true,
        },
      },
    },
  },

  resolve: {
    extensions: ['.js', '.jsx', '.json'],
    alias: {
      '@': path.resolve(__dirname, 'src/react'),
      '@components': path.resolve(__dirname, 'src/react/components'),
      '@utils': path.resolve(__dirname, 'src/react/utils'),
      '@assets': path.resolve(__dirname, 'src/react/assets'),
    },
  },

  devServer: {
    static: {
      directory: path.join(__dirname, 'dist'),
    },
    compress: true,
    port: 3000,
    hot: true,
    open: true,
    historyApiFallback: true,
    proxy: {
      '/api': {
        target: 'http://localhost:8080',
        changeOrigin: true,
        secure: false,
      },
    },
    headers: {
      'Access-Control-Allow-Origin': '*',
      'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, PATCH, OPTIONS',
      'Access-Control-Allow-Headers': 'X-Requested-With, content-type, Authorization',
    },
  },

  devtool: isProduction ? 'source-map' : 'eval-cheap-module-source-map',

  performance: {
    hints: isProduction ? 'warning' : false,
    maxEntrypointSize: 512000,
    maxAssetSize: 512000,
  },

  stats: {
    colors: true,
    children: false,
    chunks: false,
    chunkModules: false,
    modules: false,
    reasons: false,
    errorDetails: true,
    assets: true,
    version: false,
    timings: true,
  },
};