// Generated using webpack-cli https://github.com/webpack/webpack-cli

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const isProduction = process.env.NODE_ENV == 'production';
const HtmlWebpackPlugin = require('html-webpack-plugin');
const autoprefixer = require('autoprefixer')

const stylesHandler = isProduction ? MiniCssExtractPlugin.loader : 'style-loader';

const config = {
    entry: './src/js/main.js',
    output: {
        filename: 'main.js',
        path: path.resolve(__dirname, 'dist')
    },
    devServer: {
      static: path.resolve(__dirname, 'dist'),
      port: 5000,
      hot: true
    },  
    plugins: [
        new HtmlWebpackPlugin({ template: './src/index.html' })
    ],   
    module: {
        rules: [
            {
                test: /\.s[ac]ss$/i,
                use: [
                  {
                    // Adds CSS to the DOM by injecting a `<style>` tag
                    loader: 'style-loader'
                  },
                  {
                    // Interprets `@import` and `url()` like `import/require()` and will resolve them
                    loader: 'css-loader'
                  },
                  {
                    // Loader for webpack to process CSS with PostCSS
                    loader: 'postcss-loader',
                    options: {
                      postcssOptions: {
                        plugins: [
                          autoprefixer
                        ]
                      }
                    }
                  },
                  {
                    // Loads a SASS/SCSS file and compiles it to CSS
                    loader: 'sass-loader'
                  }
                ]
            },
            {
                test: /\.css$/i,
                use: [stylesHandler, 'css-loader', 'postcss-loader'],
            },
            {
                test: /\.(js|jsx)$/i,
                loader: 'babel-loader',
            },

            {
                test: /\.(eot|svg|ttf|woff|woff2|png|jpg|gif)$/i,
                type: 'asset',
            },
            // Add your rules for custom modules here
            // Learn more about loaders from https://webpack.js.org/loaders/
        ],
    },
};

module.exports = () => {
    if (isProduction) {
        config.mode = 'production';
        
        config.plugins.push(new MiniCssExtractPlugin());
        
        
        config.plugins.push(new WorkboxWebpackPlugin.GenerateSW());
        
    } else {
        config.mode = 'development';
    }
    return config;
};