const path = require('path'),
    HtmlWebpackPlugin = require('html-webpack-plugin'),
    MiniCssExtractPlugin = require('mini-css-extract-plugin');


module.exports = {
    entry: './src/index.ts',
    devtool: 'inline-source-map',
    mode: 'development',
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: 'ts-loader',
                exclude: /node_modules/,
            },
            {
                test: /\.s[ac]ss$/i,
                use: [
                    MiniCssExtractPlugin.loader,
                    "css-loader",
                    "sass-loader",
                ],
            }
        ],
    },
    resolve: {
        extensions: ['.tsx', '.ts', '.js'],
    },
    output: {
        filename: '[name].[contenthash].js',
        path: path.resolve(__dirname, 'dist'),
        clean: true,
    },
    optimization: {
        runtimeChunk: 'single',
        splitChunks: {
            chunks: 'all',
            maxInitialRequests: Infinity,
            minSize: 0,
            cacheGroups: {
                vendor: {
                    test: /[\\/]node_modules[\\/]/,
                    name(module) {
                        // get the name. E.g. node_modules/packageName/not/this/part.js
                        // or node_modules/packageName
                        const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1];

                        // npm package names are URL-safe, but some servers don't like @ symbols
                        return `npm.${packageName.replace('@', '')}`;
                    },
                },
            },
        },
    },
    plugins: [
        new HtmlWebpackPlugin({
            title: 'webdj'
        }),
        new MiniCssExtractPlugin()
    ],
};