var path = require ('path');
var webpack = require ('webpack');
var AssetsWebpackPlugin = require ('assets-webpack-plugin');
var WebpackChunkHash = require ('webpack-chunk-hash');
var merge = require ('webpack-merge');
var wpConfig = require ('./webpack.config.json');

var devMode = process.env.NODE_ENV !== 'production';
var outputPath = path.join (__dirname, wpConfig.buildDir);
var publicPath = wpConfig.buildDir +'/';

var baseConfig = {
	entry: wpConfig.entry,
	output: {
		path: outputPath,
		publicPath: publicPath
	},
	module: {
		rules: [
			{ test: /\.css$/, loader: 'style-loader!css-loader' },
			{ test: /\.xml$/, loader: 'raw-loader' },
			{ test: /\.ttf$/, loader: 'file-loader' }
		]
	},
	resolve: {
		modules: [
			__dirname +'/js',
			__dirname,
			'node_modules',
			'/usr/lib/node_modules'
		]
	},
	plugins: [
		new webpack.DefinePlugin ({
			_DEV_MODE: devMode,
			_DEV_SERVER_PORT: wpConfig.devServerPort,
			_PUBLIC_PATH: JSON.stringify (publicPath)
		}),
		new webpack.optimize.CommonsChunkPlugin ({
			names: ['vendor', 'manifest']
		})
	]
};

var prodConfig = {
	output: {
		filename: '[name].[chunkhash].js',
		chunkFilename: 'chunk.[id].[chunkhash].js'
	},
	plugins: [
		new webpack.optimize.UglifyJsPlugin ({
			minimize: true,
			compress: { warnings: false }
		}),
		new AssetsWebpackPlugin ({
			path: outputPath
		}),
		new webpack.HashedModuleIdsPlugin (),
		new WebpackChunkHash ()
	],
	devtool: 'source-map'
};

var devConfig = {
	output: {
		filename: '[name].js',
		chunkFilename: 'chunk.[id].js'
	},
	plugins: [
		new webpack.NamedModulesPlugin ()
	],
	devServer: {
		host: '0.0.0.0',
		port: wpConfig.devServerPort,
		headers: { 'Access-Control-Allow-Origin': '*' },
		stats: { chunks: false }
	},
	devtool: 'eval'
};

var mrgConfig = devMode ? devConfig : prodConfig;
module.exports = merge (baseConfig, mrgConfig);