const BundleAnalyzerPlugin = require("webpack-bundle-analyzer")
    .BundleAnalyzerPlugin;
const TerserPlugin = require('terser-webpack-plugin')
const MonacoEditorPlugin = require('monaco-editor-webpack-plugin')
const CompressionWebpackPlugin = require("compression-webpack-plugin");
const SizePlugin = require('size-plugin');
/*
const Dashboard = require('webpack-dashboard');
const DashboardPlugin = require('webpack-dashboard/plugin');
const dashboard = new Dashboard();*/
const HardSourceWebpackPlugin = require('hard-source-webpack-plugin');

// const zopfli = require("@gfx/zopfli");
// const BrotliPlugin = require("brotli-webpack-plugin");
const AliOssPlugin = require("webpack-oss");

const path = require("path");
const PurgecssPlugin = require("purgecss-webpack-plugin");
const glob = require("glob-all");

const resolve = dir => path.join(__dirname, dir);
const IS_PROD = ["production", "prod"].includes(process.env.NODE_ENV);
const IS_DEV = ["development"].includes(process.env.NODE_ENV);

const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\?.*)?$/i;

module.exports = {
    // publicPath: IS_PROD ? process.env.VUE_APP_SRC || "/" : "./", // 默认'/'，部署应用包时的基本 URL
    publicPath: IS_PROD ? process.env.VUE_APP_PUBLIC_PATH : "./", // 默认'/'，部署应用包时的基本 URL
    outputDir: process.env.outputDir || "dist", // 'dist', 生产环境构建文件的目录
    assetsDir: "", // 相对于outputDir的静态资源(js、css、img、fonts)目录
    lintOnSave: false,
    runtimeCompiler: true, // 是否使用包含运行时编译器的 Vue 构建版本
    productionSourceMap: false, // 生产环境的 source map
    //  指定对第三方依赖包进行babel-polyfill处理
    transpileDependencies: [
        'vue-echarts',
        'resize-detector',
        '30-seconds-of-code',
        'regular-xb'
    ],
    /*pages: {
        index: {
            entry: './src/main.js',
            template: 'public/index.html',
            filename: 'index.html',
            chunks: ['chunk-vendors', 'chunk-common', 'index']
        },
        preview: {
            entry: './src/views/modules/online/desform/preview.js',
            template: 'public/preview.html',
            filename: 'preview.html',
            chunks: ['chunk-vendors', 'chunk-common', 'preview'],
        }
    },*/
    configureWebpack: config => {
        // cdn引用时配置externals
        config.externals = {
            vue: 'Vue',
            'element-ui': 'ELEMENT',
        }

        let plugins = config.plugins

        plugins.push(
            new MonacoEditorPlugin()
        )

        if (IS_PROD) {
            // plugins.push(
            //     new PurgecssPlugin({
            //         paths: glob.sync([
            //             path.join(__dirname, "./src/index.html"),
            //             path.join(__dirname, "./**/*.vue"),
            //             path.join(__dirname, "./src/**/*.js")
            //         ])
            //     })
            // );

            plugins.push(
                new TerserPlugin({
                    cache: true,
                    parallel: true,
                    sourceMap: true, // Must be set to true if using source-maps in production
                    terserOptions: {
                        compress: {
                            drop_console: true,
                            drop_debugger: true
                        }
                    }
                })
            );

            //  plugins.push(new DashboardPlugin(dashboard.setData))

            plugins.push(
                new HardSourceWebpackPlugin()
            );

            plugins.push(
                new CompressionWebpackPlugin({
                    filename: "[path].gz[query]",
                    algorithm: "gzip",
                    test: productionGzipExtensions,
                    threshold: 10240,
                    minRatio: 0.8
                })
            );

            // 在每次执行打包命令后打印出本次构建的资源体积并和上次构建结果进行对比
            new SizePlugin()

            // 上传文件到oss
            //if (process.env.ACCESS_KEY_ID || process.env.ACCESS_KEY_SECRET || process.env.REGION || process.env.BUCKET || process.env.PREFIX) {
            //    plugins.push(
            //        new AliOssPlugin({
            //            accessKeyId: process.env.ACCESS_KEY_ID,
            //            accessKeySecret: process.env.ACCESS_KEY_SECRET,
            //            region: process.env.REGION,
            //            bucket: process.env.BUCKET,
            //            prefix: process.env.PREFIX,
            //            exclude: /.*\.html$/,
            //            deleteAll: false
            //        })
            //    );
            //}

            // Zopfli压缩，需要响应VC库 https://webpack.js.org/plugins/compression-webpack-plugin/
            // plugins.push(
            //     new CompressionWebpackPlugin({
            //         algorithm(input, compressionOptions, callback) {
            //             return zopfli.gzip(input, compressionOptions, callback);
            //         },
            //         compressionOptions: {
            //             numiterations: 15
            //         },
            //         minRatio: 0.99,
            //         test: productionGzipExtensions
            //     })
            // );
            // plugins.push(
            //     new BrotliPlugin({
            //         test: productionGzipExtensions,
            //         minRatio: 0.99
            //     })
            // );
        }
    },

    chainWebpack: config => {

        // 修复HMR
        config.resolve.symlinks(true);

        // 如果使用多页面打包，使用vue inspect --plugins查看html是否在结果数组中
        config.plugin("html").tap(args => {
            // 修复 Lazy loading routes Error
            args[0].chunksSortMode = "none";
            return args;
        });

        // 添加别名
        config.resolve.alias
            .set("@", resolve("src"))
            .set("assets", resolve("src/assets"))
            .set("components", resolve("src/components"))

        // set svg-sprite-loader
        config.module
            .rule('svg')
            .exclude.add(resolve('src/views/modules/online/desform/designFormList/designFormTools/icons'))
            .end()
        config.module
            .rule('icons')
            .test(/\.svg$/)
            .include.add(resolve('src/views/modules/online/desform/designFormList/designFormTools/icons'))
            .end()
            .use('svg-sprite-loader')
            .loader('svg-sprite-loader')
            .options({
                symbolId: 'icon-[name]'
            })
            .end()

        if (IS_PROD) {
            // 压缩图片
            /* config.module
                 .rule("images")
                 .test(/\.(png|jpe?g|gif|svg)(\?.*)?$/)
                 .use("image-webpack-loader")
                 .loader("image-webpack-loader")
                 .options({
                     mozjpeg: { progressive: true, quality: 65 },
                     optipng: { enabled: false },
                     pngquant: { enabled: false,quality: [0.65, 0.90], speed: 4 },
                     gifsicle: { interlaced: false },
                 });*/


            // 打包分析
            if (process.env.IS_ANALYZ) {
                config.plugin("webpack-report").use(BundleAnalyzerPlugin, [
                    {
                        analyzerMode: "static"
                    }
                ]);
            }
        }

        // 多页面配置，为js添加hash
        config.output.chunkFilename(`js/[name].[chunkhash:8].js`)

        // 修改图片输出路径
        // config.module
        //   .rule('images')
        //   .test(/\.(png|jpe?g|gif|ico)(\?.*)?$/)
        //   .use('url-loader')
        //   .loader('url-loader')
        //   .options({
        //       name: path.join('../assets/', 'img/[name].[ext]')
        //   })
    },
    css: {
        extract: false,//IS_PROD,
        modules: false,
        // 为css后缀添加hash
        // extract: {
        //  filename: 'css/[name].[hash:8].css',
        //  chunkFilename: 'css/[name].[hash:8].css'
        //}，
        sourceMap: true,
        loaderOptions: {
            sass: {
                // 向全局sass样式传入共享的全局变量
                // data: `@import "~assets/scss/variables.scss";$src: "${process.env.VUE_APP_SRC}";`
                data: `$src: "${process.env.VUE_APP_SRC}";`
            }
            // px转换为rem
            // postcss: {
            //   plugins: [
            //     require('postcss-pxtorem')({
            //       rootValue : 1, // 换算的基数
            //       selectorBlackList  : ['weui', 'el'], // 忽略转换正则匹配项
            //       propList   : ['*']
            //     })
            //   ]
            // }
        }
    },

    pluginOptions: {
        // 安装vue-cli-plugin-style-resources-loader插件
        // 添加全局样式global.scss
        // "style-resources-loader": {
        //   preProcessor: "scss",
        //   patterns: [
        //     resolve(__dirname, "./src/scss/scss/variables.scss")
        //   ]
        // }
    },
    parallel: require("os").cpus().length > 1,
    pwa: {},
    devServer: {
        // overlay: {
        //   warnings: true,
        //   errors: true
        // },
        open: IS_PROD,
        //host: "localhost",
        port: 8088,
        https: false,
        hotOnly: true,
        disableHostCheck: true,
        proxy: {
            '/jeecg-boot': {
                //target : 'http://localhost:8080',
                target: process.env.VUE_APP_BASE_API || 'http://47.107.178.235:8080/',
                //target : 'http://boot.jeecg.org',
                ws: false,                   // 是否启用websockets
                //secure: false,
                changeOrigin: true          // 开启代理，在本地创建一个虚拟服务端
            },
        },
    }
};