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

const mode = process.env.NODE_ENV || 'development';
const prod = mode === 'production';

module.exports = {
	entry: {
		bundle: ['./app/main.js']
	},
	resolve: {
		alias: {
			svelte: path.resolve('node_modules', 'svelte')
		},
		extensions: ['.mjs', '.js', '.svelte'],
		mainFields: ['svelte', 'browser', 'module', 'main']
	},
	output: {
		path: __dirname + '/public',
		filename: '[name].js',
		chunkFilename: '[name].[id].js'
	},
	module: {
		rules: [
			{
				test: /\.svelte$/,
				use: {
					loader: 'svelte-loader',
					options: {
						emitCss: true,
						hotReload: true
					}
				}
			},
			{
				test: /\.css$/,
				use: [
					/**
					 * MiniCssExtractPlugin doesn't support HMR.
					 * For developing, use 'style-loader' instead.
					 * */
					prod ? MiniCssExtractPlugin.loader : 'style-loader',
					'css-loader'
				]
			},
			{
				test: /\.(scss)$/,
				use: [{
					loader: 'style-loader', // inject CSS to page
				}, {
					loader: 'css-loader', // translates CSS into CommonJS modules
				}, {
					loader: 'postcss-loader', // Run post css actions
					options: {
						plugins: function () { // post css plugins, can be exported to postcss.config.js
							return [
								require('precss'),
								require('autoprefixer')
							];
						}
					}
				}, {
					loader: 'sass-loader' // compiles Sass to CSS
				}]
			},
		]
	},
	mode,
	plugins: [
		new MiniCssExtractPlugin({
			filename: '[name].css'
		}),
		new webpack.DefinePlugin({
			__VERSION__: JSON.stringify(require("./package.json").version)
		})
	],
	devServer: {
		proxy: {
		  '/api': 'http://localhost:8080'
		}
	},
	devtool: prod ? false: 'source-map'
};