const webpack = require('webpack');
const path = require('path');
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const HtmlWebpackIncludeAssetsPlugin = require('html-webpack-include-assets-plugin');
const WebpackDevServer = require('webpack-dev-server');
const entries = require('./webpack/entry.config.js');
const version = require('./package.json').version;
const argv = require('yargs').argv;//yargs模块能够解决如何处理命令行参数。yargs模块提供了argv对象，用来读取命令行参数
const dirVars = require('./webpack/dir.config.js');

let theme = {
    '@primary-color': '#58a3ff',
    '@link-color': '#58a3ff'
};
let isWatch = argv.env.watch == 'watch';
let isDev = isWatch || argv.env.deploy == 'dev';

process.traceDeprecation = true;//process.traceDeprecation 属性被设为 true，则废弃的函数首次被调用时会把警告与堆栈追踪打印到 stderr

process.noDeprecation = true;// process.noDeprecation 属性在首次废弃警告之前被设为 true，则 util.deprecate() 方法什么也不做

module.exports = (function () {
    let jumlApi = ''
    switch (argv.env.deploy) {
        case 'dev':
            jumlApi = 'http://sb.jishutao.com'
            break
        case 'test':
            jumlApi = 'http://uat.jishutao.com'
            break
        case 'prod':
            jumlApi = 'http://count.jishutao.com'
            break
        default:
            break
    }
    let plugins = [
        //定义全局变量区分本地测试生产做跳转
        new webpack.DefinePlugin({
            jumpUrl: `'${jumlApi}'`,
        }),
        //把入口文件里面的数组打包成verdors.js
        new webpack.optimize.CommonsChunkPlugin({
            name: 'vendors'
        }),
        /* 配置好Dll */
        new webpack.DllReferencePlugin({
            context: dirVars.staticRootDir, // 指定一个路径作为上下文环境，需要与DllPlugin的context参数保持一致，建议统一设置为项目根目录
            manifest: require('./dll/'+argv.env.deploy+'/manifest.json') // 指定manifest.json
        }),
        // 把dll文件复制到打包后的文件中
        new CopyWebpackPlugin([
            {
                from: path.resolve('./dll/'+argv.env.deploy),
                to: (__dirname, './dll/'),
                ignore: ['.*']
            }
        ]),
        // 将 dll.js 插入HTML里
        new HtmlWebpackIncludeAssetsPlugin({
            assets: [(__dirname, 'dll/dll.js'),(__dirname, 'dll/dll.css')],
            append: false
        }),
        //使用时被配置的文件，将不再需要import和require进行引入，直接使用即可
        new webpack.ProvidePlugin({
            $: 'jquery',
            React:'react',
            Mock:'mockjs'
        }),
        //extract-text-webpack-plugin该插件的主要是为了抽离css样式,防止将样式打包在js中引起页面样式加载错乱的现象;
        new ExtractTextPlugin({
            filename: "[name].css",
            disable: false,
            allChunks: true
        }),
        //user  HtmlWebpack
        new HtmlWebpackPlugin({
            title: '用户首页',//设置生成的html文件的<title>值
            filename: 'user/index.html',//设置子文件夹路径
            template: './template/template.html',//顾名思义，是生成文件的模板
            chunks: ['user/index', 'vendors']//测试模块
        }),
        new HtmlWebpackPlugin({
            title: '用户登录',
            filename: 'user/login.html',
            template: './template/template.html',
            chunks: ['user/login', 'vendors']
        }),
        new HtmlWebpackPlugin({
            title: '用户注册',
            filename: 'user/signIn.html',
            template: './template/template.html',
            chunks: ['user/signIn', 'vendors']
        }),
        new HtmlWebpackPlugin({
            title: '用户中心管理',
            filename: 'user/account/index.html',
            template: './template/template.html',
            chunks: ['user/account/index', 'vendors']
        }),
        new HtmlWebpackPlugin({
            title: '在线评估',
            filename: 'user/account/evaluateInfo.html',
            template: './template/template.html',
            chunks: ['user/account/evaluateInfo', 'vendors']
        }),
        //管理员模块
        new HtmlWebpackPlugin({
            title: '管理员-登录',
            filename: 'admin/login.html',
            template: './template/template.html',
            chunks: ['admin/login', 'vendors']
        }),
        new HtmlWebpackPlugin({
            title: '管理员-首页',
            filename: 'admin/index.html',
            template: './template/template.html',
            chunks: ['admin/index', 'vendors']
        })
    ];
    if (!isDev) {
        //这个使用uglifyJs压缩你的js代码
        plugins.unshift(new webpack.DefinePlugin({
            "process.env": {
                NODE_ENV: JSON.stringify("production")
            }
        }));
        plugins.unshift(new webpack.optimize.UglifyJsPlugin({
            minimize: true,
            compress: {
                warnings: true
            }
        }));
    }

    let staticHost = 'http://172.16.0.253:80';
    switch (argv.env.deploy) {
        case 'test':
            staticHost = 'http://static.jishutao.com'
            break
        case 'prod':
            staticHost = 'http://count.jishutao.com'
            break
        default:
            break
    }
    staticHost = staticHost + '/client/' + version + '/';
    theme['@icon-url'] = '"' + staticHost + 'css/iconfont/iconfont"'
    return {
        entry: isWatch ? entries.watch : entries.prod,
        output: {
            path: path.resolve(__dirname, './build/' + argv.env.deploy+'/'+ version),
            filename: '[name].js',
            publicPath: staticHost,
            chunkFilename: 'chunks/[name].[hash:8].js'
        },
        module: require('./webpack/module.config.js')(theme),
        resolve: {
            alias:{
                '@':__dirname+'/js/component',
                'img':__dirname+'/image',
                'css':__dirname+'/css',
                'js':__dirname+'/js'
            },
            extensions: ['.js', '.jsx']
        },
        plugins: plugins,
        devServer: {
            disableHostCheck: true,
            host: '172.16.0.253',
            port: 80,
            allowedHosts: ['127.0.0.1','192.168.0.20','192.168.0.99'],
            headers: {
                "Access-Control-Allow-Origin": "*"
            }
        }
    };
})();