const path = require('path');

module.exports = (env, argv) =>  ({
    entry: path.resolve(__dirname, 'src/scripts/index.js'),
    devServer: {
        contentBase: path.join(__dirname, '.'),
        compress: true,
        port: 8080
    },
    devtool:  argv.mode === 'production' ? false : 'source-map',
    mode: argv.mode || 'development',
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, 'dist')
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env'],
                        cacheDirectory: true
                    },
                }
            },
            {
                test: /\.s?css$/,
                use: [
                    'style-loader',
                    {
                        loader: 'css-loader',
                        options: {
                            sourceMap: argv.mode !== 'production'
                        }
                    },
                    {
                        loader: 'postcss-loader',
                        options: {
                            ident: 'postcss',
                            plugins: [
                                require('autoprefixer'),
                            ]
                        }
                    },
                    'sass-loader'
                ]
            },
            {
                test: /\.(png|jpg|gif|svg|eot|ttf|woff|woff2)$/i,
                loader: 'url-loader',
                options: {
                    limit: 1024,
                    outputPath: 'assets',
                    name: '[name].[ext]'
                }
            },
        ]
    }
})