"use strict";
const path = require("path");

function resolve(dir) {
  return path.join(__dirname, dir);
}

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: "/",
  outputDir: "dist",
  productionSourceMap: false,
  css: {
    sourceMap: true,
  },
  devServer: {
    port: 8080,
    open: true,
    overlay: {
      warnings: false,
      errors: true,
    },
    proxy: {
      // change xxx-api/login => mock/login
      // detail: https://cli.vuejs.org/config/#devserver-proxy
      "/api/v1": {
        target: "http://127.0.0.1:5000/",
        changeOrigin: true,
        pathRewrite: {},
      },
      "/api/v1/kxpms": {
        target: "http://192.168.1.106:5000/",
        changeOrigin: true,
        pathRewrite: {
          "^/online": "/",
          // 这里理解成用/api代替target里面的地址，后面组件中我们调用接口时直接用api代替
          // 比如我要调用'http://40.00.100.100:3002/user/add'，直接写'/api/user/add'即可
        },
      },
      "/api/": {
        target: "http://192.168.31.20:8222/",
        changeOrigin: true,
        pathRewrite: {},
      },
    },
    // after: require("./mock/mock-server.js"),
  },
  configureWebpack: (config) => {
    // debug JS
    config.devtool = "source-map";
  },
  chainWebpack(config) {
    config.plugins.delete("preload"); // TODO: need test
    config.plugins.delete("prefetch"); // TODO: need test

    // set svg-sprite-loader
    config.module.rule("svg").exclude.add(resolve("src/icons")).end();
    config.module
      .rule("icons")
      .test(/\.svg$/)
      .include.add(resolve("src/icons"))
      .end()
      .use("svg-sprite-loader")
      .loader("svg-sprite-loader")
      .options({
        symbolId: "icon-[name]",
      })
      .end();

    // set preserveWhitespace
    config.module
      .rule("vue")
      .use("vue-loader")
      .loader("vue-loader")
      .tap((options) => {
        options.compilerOptions.preserveWhitespace = true;
        return options;
      })
      .end();

    config.when(process.env.NODE_ENV !== "development", (config) => {
      config
        .plugin("ScriptExtHtmlWebpackPlugin")
        .after("html")
        .use("script-ext-html-webpack-plugin", [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/,
          },
        ])
        .end();
      config.optimization.splitChunks({
        chunks: "all",
        cacheGroups: {
          libs: {
            name: "chunk-libs",
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: "initial", // only package third parties that are initially dependent
          },
          elementUI: {
            name: "chunk-elementUI", // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/, // in order to adapt to cnpm
          },
          commons: {
            name: "chunk-commons",
            test: resolve("src/components"), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true,
          },
        },
      });
      config.optimization.runtimeChunk("single");
    });
  },
};