var path = require('path')
var webpack = require('webpack')
var fs = require('fs')
var autoprefixer = require('autoprefixer')
var ExtractTextPlugin = require('extract-text-webpack-plugin')
var UglifyJSPlugin = require('uglifyjs-webpack-plugin')
var CleanWebpackPlugin = require('clean-webpack-plugin')
var HtmlWebpackPlugin = require('html-webpack-plugin');
// var LiveReloadPlugin = require('webpack-livereload-plugin')
// var EventCallbackWebpackPlugin = require('event-callback-webpack-plugin').default
var WebpackAutoInject = require('webpack-auto-inject-version')
// var colors = require('colors/safe')
// var nodemon = require('nodemon')

// var running = false;

var nodeModules = {};
fs.readdirSync(path.join(__dirname, 'node_modules'))
	.filter(x => ['.bin'].indexOf(x) === -1)
	.forEach(mod => nodeModules[mod] = 'commonjs ' + mod);

var config = function (server, env, options) {
	var isProduction = env !== 'development';
	var configuration = {
		entry: path.join(__dirname, server ? 'server.js' : "portal/index.js"),
		target: server ? 'node' : "web",
		output: {
			path: path.join(__dirname, 'dist', server ? '' : 'public'),
			filename: server ? 'server.js' : "bundle.js",
			chunkFilename: isProduction ? '[chunkhash].js' : '[id].js',
			// publicPath: server ? '' : (options.spa ? '' : '/public/')
		},
		externals: (server ? nodeModules : {}),
		devtool: isProduction ? 'source-map' : "",
		// resolve: {
		// 	alias: {
		// 		'initDataHandlers': 'export default void 0'
		// 	},
		// 	extensions: server ? [".server.js", ".js", ".server.json", ".json"] : [".client.js", ".js", ".client.json", ".json"]
		// },
		module: {
			rules: [{
				test: /\.js$/,
				use: [{
					loader: 'babel-loader'
				}, {
					loader: 'eslint-loader'
				}],
				exclude: /node_modules/
			}, {
				test: /\.sass$/,
				use: ExtractTextPlugin.extract({
					fallback: "style-loader",
					use: [{
						loader: "css-loader"
					}, {
						loader: "postcss-loader"
					}, {
						loader: "sass-loader"
					}]
				})
			}, {
				test: /\.css$/,
				loader: ExtractTextPlugin.extract({
					fallback: "style-loader",
					use: [{
						loader: "css-loader"
					}]
				})
			}, {
				test: /\.(ttf|eot|svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
				loader: "file-loader?name=" + (isProduction ? "[hash]" : "[name]") + ".[ext]"
			}, {
				test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
				loader: "url-loader?limit=10000&mimetype=application/font-woff&name=" + (isProduction ? "[hash]" : "[name]") + ".[ext]"
			}, {
				test: /\.(jpe?g|png|gif|svg)$/i,
				loaders: [
					'file-loader?hash=sha512&digest=hex&name=' + (isProduction ? "[hash]" : "[name]") + '.[ext]',
					'image-webpack-loader?bypassOnDebug&optimizationLevel=7&interlaced=false'
				]
			}]
		},
		plugins: [
			// new webpack.IgnorePlugin(server ? /\.(client\.js|client\.json)$/ : /\.(server\.js|server\.json)$/),
			new HtmlWebpackPlugin({
				filename: "index.html",
				template: './portal/index.html',
				inject: false
			}),
			new ExtractTextPlugin(isProduction ? "[contenthash].css" : "[name].css"),
			new webpack.DefinePlugin({
				'process.env': {
					NODE_ENV: JSON.stringify(isProduction ? 'production' : 'development')
				}
			}),
			new CleanWebpackPlugin([server ? 'dist' : "dist/public"], {
				root: __dirname,
				verbose: true,
				dry: false
			}),
			new WebpackAutoInject({
				NAME: 'Server render for react',
				SHORT: 'ServerRender',
				SILENT: true,
				PACKAGE_JSON_PATH: './package.json',
				components: {
					AutoIncreaseVersion: true,
					InjectAsComment: true,
					InjectByTag: true
				},
				componentsOptions: {
					AutoIncreaseVersion: {
						runInWatchMode: false // it will increase version with every single build!
					},
					InjectAsComment: {
						tag: 'Version: {version} - {date}',
						dateFormat: 'h:MM:ss TT'
					},
					InjectByTag: {
						fileRegex: /\.+/,
						dateFormat: 'h:MM:ss TT'
					}
				},
				LOGS_TEXT: {
					AIS_START: 'AIV started'
				}
			})
		]
	};
	if (isProduction) {
		configuration.plugins.push(new UglifyJSPlugin({
			uglifyOptions: {
				compress: {
					drop_console: true,
					//only remove the follow console
					pure_funcs: ['console.log', 'console.info', 'console.dir', 'console.debug']
				}
			}
		}));
	}
	if (server) {
		// configuration.plugins.push(new EventCallbackWebpackPlugin('done', () => {
		// 	if (env === 'development') {
		// 		if (!running) {
		// 			running = true;
		// 			process.chdir('dist');
		// 			nodemon({
		// 				script: 'server.js',
		// 				delay: 5 * 1000
		// 			});
		// 			nodemon.on('start', function () {
		// 				var url;
		// 				if (server) {
		// 					url = 'http://127.0.0.1:3000';
		// 				}
		// 				else if (options.spa) {
		// 					url = 'file://' + path.resolve(path.join(__dirname, 'dist/public/index.html'));
		// 				}
		// 				console.log(colors.green('\n Please access ' + url + ' in browser \n'));
		// 			});
		// 		}
		// 	}
		// }));
	}
	else {
		// configuration.plugins.push(new LiveReloadPlugin());
		configuration.plugins.push(new webpack.HotModuleReplacementPlugin());
	}
	return configuration;
};

module.exports = function (options) {
	if (!options) {
		options = {
			NODE_ENV: 'development'
		};
	}
	if (!options.NODE_ENV) {
		options.NODE_ENV = 'development'
	}
	var NODE_ENV = options.NODE_ENV;
	console.log('**********************');
	console.log('* environment : ' + NODE_ENV);
	console.log('**********************');
	return [/*config(true, NODE_ENV, options),*/ config(false, NODE_ENV, options)];
};