// vue.config.js

const path = require("path");
require("babel-polyfill");
const fs = require("fs");
const CompressionWebpackPlugin = require("compression-webpack-plugin");
const argv = require("yargs").argv;

function resolve(dir) {
  return path.join(__dirname, dir);
}
const PRODUCTION = process.env.NODE_ENV === "production";

// 0开发 1正式环境 2测试服务器
const serverType = PRODUCTION ? (argv["test_server"] ? 2 : 1) : 0;

// APP 版本号（影响打包路径）
const APP_VERSION = (process.env.VUE_APP_VERSION = process.env.npm_package_appVersion);

// H5  版本号（影响打包文件名）
const H5_VERSION = (process.env.VUE_APP_H5_VERSION = process.env.npm_package_version);

// H5  包名称（只有生产环境和单项目开发环境才有值）
process.env.VUE_APP_NAME = "";
process.env.VUE_APP_VERSION_CODE = "";

// 生产环境使用CDN加速域名，开发和测试环境使用OSS域名
process.env.VUE_APP_HOST = serverType == 1 ? process.env.VUE_APP_CDN_HOST : process.env.VUE_APP_OSS_HOST;

let lessVars = require("./src/assets/config/less");
lessVars["TEST_SERVICE"] = process.env.VUE_APP_TEST_SERVICE = serverType; // css 中使用的全局变量，如服务器上的图片 OSS_PATH

console.log(">>>>>>>> 运行环境 ", ["开发环境", "正式环境", "测试服务器"][serverType]);

// 获取所有多入口文件
const getPages = (arr = [], toName) => {
  const dirs = fs.readdirSync("./src/views");
  let pages = {};
  for (const name of dirs) {
    if (arr.length > 0 && !arr.includes(name)) continue;
    let temPath = `templates/${name}.html`;
    let entryPath = `src/views/${name}/main.js`;
    let newName = name;
    if (arr.length == 1 && toName) {
      newName = toName;
    }
    pages[newName] = {
      entry: entryPath, // 入口
      template: fs.existsSync(temPath) ? temPath : "public/index.html",
      filename: PRODUCTION ? `index.html` : `${newName}.html`,
      title: newName,
      // 在这个页面中包含的块，默认情况下会包含,提取出来的通用 chunk 和 vendor chunk。
      chunks: ["chunk-vendors", "chunk-common", newName]
    };
  }
  return pages;
};
let proPathName = PRODUCTION ? argv["test_server"] || process.argv[3] : "";
let proNewName = (argv["test_server"] ? process.argv[5] : process.argv[4]) || proPathName;

console.log(process.argv);
let devPathName = "";
let page = {};
if (!PRODUCTION) {
  if (argv["project"] && argv["project"] !== true) {
    devPathName = String(argv["project"]).trim().split(",");
    console.log(">>>>>>>> 运行项目 ", devPathName);
    page = getPages(devPathName);
    if (devPathName.length == 1) {
      process.env.VUE_APP_NAME = devPathName[0];
      process.env.VUE_APP_VERSION_CODE = require(`./src/views/${devPathName[0]}/assets/config/index`).versionCode;
    }
  } else {
    console.log(">>>>>>>> 运行项目 ", "全部");
    page = getPages();
  }
} else if (proPathName) {
  proPathName = proPathName.replace(/[^a-zA-Z|_\d]/gi, "");
  proNewName = proNewName.replace(/[^a-zA-Z|_\d]/gi, "");
  console.log(">>>>>>>> 打包项目 ", proPathName, proNewName);
  process.env.VUE_APP_NAME = proNewName;
  process.env.VUE_APP_VERSION_CODE = require(`./src/views/${proPathName}/assets/config/index`).versionCode;
  page = getPages([proPathName], proNewName);
} else {
  throw new Error("未写项目包名");
}

let cssOptions = PRODUCTION
  ? {
      extract: {
        filename: `css/[name]-${H5_VERSION}-[hash:8].css`,
        chunkFilename: `css/[name]-${H5_VERSION}-[hash:8].css`
      }
    }
  : {};
module.exports = {
  publicPath: !PRODUCTION ? "/m" : "./",
  outputDir: "./dist/" + proNewName,
  filenameHashing: true,
  pages: page,
  productionSourceMap: false, // 生产环境 sourceMap
  devServer: {
    openPage: `${proNewName || ""}.html`,
    open: true, // 项目构建成功之后，自动弹出页面
    host: "0.0.0.0", // 主机名，也可以127.0.0.0 || 做真机测试时候0.0.0.0
    port: 8082, // 端口号，默认8080
    https: false, // 协议
    hotOnly: false, // 没啥效果，热模块，webpack已经做好了
    proxy: {
      "/api": {
        // target: "https://test-mall-web.peogoo.com",
        target: "http://10.20.39.122:8082",
        changeOrigin: true, // 如果接口跨域，需要进行这个参数配置
        pathRewrite: {
          "^/api": ""
        }
      }
      // "/foo": {
      //   target: "<other_url>"
      // }
    } // 配置多个代理
  },
  // 配置less全局变量
  css: {
    loaderOptions: {
      less: {
        globalVars: lessVars
      }
    },
    ...cssOptions
  },
  configureWebpack: (config) => {
    // ES6转为ES5
    if (PRODUCTION && proPathName) {
      config.entry[proNewName] = ["babel-polyfill", ...config.entry[proNewName]];
      config.output.filename = `js/[name]-${H5_VERSION}-[hash:8].js`;
      config.output.chunkFilename = `js/[name]-${H5_VERSION}-[hash:8].js`;
    }

    let plugins = [];
    config.plugins.push(
      new CompressionWebpackPlugin({
        // 正在匹配需要压缩的文件后缀
        test: /\.(js|css|svg|woff|ttf|json|html)$/,
        // 大于10kb的会压缩
        threshold: 10240
        // 其余配置查看compression-webpack-plugin
      })
    );
    // 生成环境且非测试服务器需要移除console和debugger
    if (serverType == 1) {
      console.log(`>>>>>>>> 移除console和debugger`);
      config.plugins = [...config.plugins, ...plugins];
      config.optimization.minimizer[0].options.terserOptions.compress.drop_console = true; // 删除console
      config.optimization.minimizer[0].options.terserOptions.compress.drop_debugger = true; // 删除deubgger
    }
  },
  chainWebpack: (config) => {
    //忽略的打包文件
    config.externals({
      "animate.css": "animate.css",
      vue: "Vue",
      "vue-router": "VueRouter",
      vuex: "Vuex",
      axios: "axios",
      moment: "moment",
      vant: "vant",
      "vue-clipboard2": "vue-clipboard2"
    });

    // 别名
    config.resolve.alias
      .set("@", resolve("src"))
      .set("@assets", resolve("src/assets"))
      .set("@views", resolve("src/views"))
      .set("@components", resolve("src/components"))
      .set("@phjtWebTools", resolve("src/phjtWebTools"))
      .set("@utils", resolve("src/assets/utils"));

    config.module
      .rule("svg")
      .use("file-loader")
      .loader("file-loader")
      .options({ name: `img/[name]-${H5_VERSION}-[hash:8].[ext]` });

    // 打包文件格式
    config.module
      .rule("images")
      .test(/\.(png|jpe?g|gif|webp)(\?.*)?$/)
      .use("url-loader")
      .loader("url-loader")
      .tap((options) => {
        options.fallback.options.name = `img/[name]-${H5_VERSION}-[hash:8].[ext]`;
        options.limit = 5120; //这是字节(Byte)限制，1KB = 1024Byte。
        return options;
      });

    // 为了补删除换行而加的配置
    config.module
      .rule("vue")
      .use("vue-loader")
      .loader("vue-loader")
      .tap((options) => {
        options.compilerOptions.preserveWhitespace = true;
        return options;
      });
  }
};