const webpack = require('webpack');
const CopyPlugin = require('copy-webpack-plugin');
const CompressionPlugin = require("compression-webpack-plugin")
const config = require('./webpack.base.js');

module.exports = Object.assign(
	config,
	{
		mode: "production",
		optimization:
		{
			minimize: true
		},
		plugins: [
			new webpack.DefinePlugin(
			{
				'process.env':
				{
					'DEBUG': false
				} // set a DEBUG flag that can be used in the scripts (can be skipped)
			}),
			new CopyPlugin([
				{from: 'index.html'},
				{from: 'robot.txt'},
				{from: 'src/lang', to: 'lang'},
				{from: 'assets/public', to: 'assets'}
			]),
			new CompressionPlugin(
			{
				filename: "[path].gz[query]",
				algorithm: "gzip",
				test: [/\.js/, /\.svg/],
				threshold: 1000
			})
		]
	}
);