import { defineConfig, loadEnv } from 'vite'
import vue from '@vitejs/plugin-vue'
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
import path from 'path';
import { VxeTableResolver } from '@vxecli/import-unplugin-vue-components';
import CssMinimizerPlugin from "css-minimizer-webpack-plugin";
import TerserPlugin from "terser-webpack-plugin";

const name = "闲鱼特卖开放平台"; // page title



const port = process.env.port || process.env.npm_config_port || 80; // dev port
// https://vitejs.dev/config/
export default defineConfig((command, mode) => {
  const env = loadEnv(mode, __dirname);

  return {
    publicPath: "./",
    outputDir: "dist",

    assetsDir: "static",
    lintOnSave: env.VITE_MODE === "development",
    //lintOnSave: false,
    productionSourceMap: false,
    plugins: [
      vue(),
      AutoImport({
        resolvers: [ElementPlusResolver(), VxeTableResolver()],
      }),
      Components({
        resolvers: [ElementPlusResolver(), VxeTableResolver()],
      }),
    ],
    define: {
      'process.env': {
        VITE_APP_BASE_API: 'JSON.stringify(env.VUE_APP_BASE_API)',
        VITE_APP_BASE_SITE: 'JSON.stringify(env.VITE_APP_BASE_SITE)',
        VITE_APP_BASE_URL:'JSON.stringify(env.VITE_APP_BASE_URL)',
      },
    },
    server: {
      port: port,
      open: true,
      hot: true,
      overlay: {
        warnings: false,
        errors: true,
      },
      host: '0.0.0.0',
      // proxy: {
      //   [process.env.VUE_APP_BASE_API]: {
      //     //这里是公共部分，在调用接口时后面接不相同的部分
      //     target: process.env.VUE_APP_BASE_API, //修改后台接口地址
      //     // changeOrigin: true, //开启跨域
      //     pathRewrite: {
      //       //重命名
      //       ["^" + process.env.VUE_APP_BASE_API]: "",
      //     },
      //   },
      //   '^/api': {
      //     target: 'http://dev-erp-api.xtkj99.com:7890',
      //     changeOrigin: true
      //   }
      // },
      disableHostCheck: true,
    },
    resolve: {
      // 设置路径别名
      alias: {
        '@': path.join(__dirname, '/src'),
        '@services': path.join(__dirname, '/src/services'),
        '@axioshooks': path.join(__dirname, '/src/services/axioshooks'),
        '@assets': path.join(__dirname, '/src/assets'),
        '@components': path.join(__dirname, '/src/components'),
        '@api': path.join(__dirname, '/src/services/api'),
        '@untils': path.join(__dirname, '/src/untils')
      }
    },
    css: {
      // 是否使用css分离插件 ExtractTextPlugin
      extract: {
        filename: `static/js/chunk-[hash].css`
      },
    },
    configureWebpack: {
      output: {
        filename: `static/js/chunk-[hash].js`
      },
      module: {
        rules: [

          {
            test: /\.js$/,
            include: path.resolve(__dirname, '../src'),
            exclude: /node_modules/,
            use: [
              'cache-loader',
              {
                loader: 'thread-loader',
                options: {
                  workers: 2
                }
              },
              'bable-loader'
            ]
          }
        ]
      },
    },

    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    optimization: {
      minimizer: [
        // For webpack@5 you can use the `...` syntax to extend existing minimizers (i.e. `terser-webpack-plugin`), uncomment the next line
        // `...`,
        new CssMinimizerPlugin(),
        new TerserPlugin({
          terserOptions: {
            compress: {
              drop_console: true, // 生产环境自动删除console
            },
          }
        })
      ],
    },

    chainWebpack(config) {
      // it can improve the speed of the first screen, it is recommended to turn on preload
      config.plugin("preload").tap(() => [
        {
          rel: "preload",
          // to ignore runtime.js
          // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
          fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
          include: "initial",
        },
      ]);


      // when there are many pages, it will cause too many meaningless requests
      config.plugins.delete("prefetch");


      // set svg-sprite-loader
      config.module.rule("svg").exclude.add(resolve("src/icons")).end();
      config.module
        .rule("icons")
        .test(/\.svg$/)
        .include.add(resolve("src/icons"))
        .end()
        .use("svg-sprite-loader")
        .loader("svg-sprite-loader")
        .options({
          symbolId: `icon-[name].${Version}.[ext]`,
        })
        .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,
            },
          },
        });
        // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
        config.optimization.runtimeChunk("single");
        config.optimization.minimizer("terser").tap((args) => {
          args[0].parallel = 4;
          args[0].terserOptions.compress.warnings = true;
          args[0].terserOptions.compress.drop_debugger = true;
          args[0].terserOptions.compress.drop_console = true;
          return args;
        });
      });
    },
  }
})