let webpack = require('webpack');
var path = require('path');
let config = require('./config')
let utils = require('./utils');
let merge = require('webpack-merge')
let OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin');
let ExtractTextPlugin = require('extract-text-webpack-plugin');
let HtmlWebpackPlugin = require('html-webpack-plugin');
let baseConfig = require('./webpack.base.conf.js');

var webpackConfig = merge(baseConfig, {
    module: {
        rules: utils.styleLoaders({
            sourceMap: config.build.productionSourceMap,
            extract: true
        })
    },
    devtool: config.build.productionSourceMap ? '#source-map' : false,
    output: {
        filename: utils.assetsPath('js/[name].[chunkhash:7].js'),
        chunkFilename: utils.assetsPath('js/[name].[chunkhash:7].js')
    },
    plugins: [
        new webpack.DefinePlugin({
            'process.env': config.build.env
        }),
        new webpack.optimize.UglifyJsPlugin({
            compress: {
                warnings: false
            },
            sourceMap: true
        }),
        new ExtractTextPlugin({
            filename: utils.assetsPath('css/[name].[contenthash:7].css')
        }),
        new OptimizeCSSPlugin({
            cssProcessorOptions: {
                safe: true
            }
        }),
        new HtmlWebpackPlugin({
            filename: config.build.index,
            template: '../index.html',
            inject: true,
            minify: {
                removeComments: true,
                collapseWhitespace: true,
                removeAttributeQuotes: true
            },
            chunksSortMode: 'dependency'
        }),
        new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
        new webpack.optimize.CommonsChunkPlugin({
            name: 'vendor',
            minChunks: function (module, count) {
                // any required modules inside node_modules are extracted to vendor
                return (
                module.resource &&
                /\.js$/.test(module.resource) &&
                module.resource.indexOf(
                    path.join(__dirname, '../../node_modules')
                ) === 0
                )
            }
        }),
        new webpack.optimize.CommonsChunkPlugin({
            name: 'manifest',
            chunks: ['vendor']
        })
    ]
});

if (config.build.bundleAnalyzerReport) {
    var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
    webpackConfig.plugins.push(new BundleAnalyzerPlugin())
}



module.exports = webpackConfig;