webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');
const dotenv = require('dotenv');
const webpack = require('webpack');

dotenv.config();

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.join(__dirname, '/dist'),
    filename: 'bundle.js',
    publicPath: '/',
  },
  resolve: {
    extensions: ['.js', '.jsx'],
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader'],
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif)$/i,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
              outputPath: 'images',
            },
          },
          {
            loader: 'image-webpack-loader',
            options: {
              mozjpeg: {
                progressive: true,
                quality: 65,
              },
              // optipng.enabled: false will disable optipng
              optipng: {
                enabled: false,
              },
              pngquant: {
                quality: [0.65, 0.9],
                speed: 4,
              },
              gifsicle: {
                interlaced: false,
              },
              // the webp option will enable WEBP
              webp: {
                quality: 75,
              },
            },
          },
        ],
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './public/index.html',
    }),
    new MiniCssExtractPlugin(),
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, 'public'),
          to: path.resolve(__dirname, 'dist'),
          globOptions: {
            // This ensures the "index.html" file is not copied
            // as Webpack typically generates its own "index.html"
            ignore: ['**/index.html'],
          },
        },
      ],
    }),
    new webpack.DefinePlugin({
      'process.env.SUPABASE_URL': JSON.stringify(process.env.SUPABASE_URL),
      'process.env.SUPABASE_KEY': JSON.stringify(process.env.SUPABASE_KEY),
    }),
  ],
  optimization: {
    minimizer: [`...`, new CssMinimizerPlugin()],
  },
  devServer: {
    static: path.join(__dirname, '/dist'),
    port: 3000,
    hot: true,
    open: true,
    historyApiFallback: true, // Add this line
  },
};