import { URL, fileURLToPath } from 'node:url'

import { defineConfig } from 'vite'
import legacy from '@vitejs/plugin-legacy'
import vue2 from '@vitejs/plugin-vue2'

// plugins
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import Icons from 'unplugin-icons/vite'
import IconsResolver from 'unplugin-icons/resolver'
import { FileSystemIconLoader } from 'unplugin-icons/loaders'
import { ElementUiResolver } from "unplugin-vue-components/resolvers";
import viteCompression from 'vite-plugin-compression'
import visualizer from 'rollup-plugin-visualizer'

export default defineConfig(({ command }) => {
  return {
    base: './',
    assetsInclude: ['assets/'],
    css: {
      preprocessorOptions: {
        less: {
          javascriptEnabled: true,
          additionalData: '@import "@/style/common.less";',
        },
      },
    },
    build: {
      outDir: 'dist',
      sourcemap: false,
      chunkSizeWarningLimit: 1000,
      rollupOptions: {
        output: {
        // 分类输出
        // chunkFileNames: 'js/[name]-[hash].js',
        // entryFileNames: 'js/[name]-[hash].js',
        // assetFileNames: '[ext]/[name]-[hash].[ext]',
        // manualChunks(id) {
        //   // 打包拆分js
        //   if (id.includes('node_modules')) {
        //     return id.toString().split('node_modules/')[1].split('/')[0].toString()
        //   }
        // },
        },
      },
    },
    resolve: {
      alias: {
        '@/': new URL('./src/', import.meta.url).pathname,
      },
    },
    plugins: [
      vue2(),
      legacy({
        targets: ['ie >= 11'],
        additionalLegacyPolyfills: ['regenerator-runtime/runtime'],
      }),
      AutoImport({
        imports: [
          'vue',
          'vue-router',
          'vuex',
        ],
        dts: false,
        resolvers: [],
      }),
      Components({
        resolvers: [
          ElementUiResolver(),
          IconsResolver({
            prefix: 'i',
          }),
        ],
        dts: false,
      }),
      Icons({
      // experimental
        'autoInstall': true,
        'my-icons': FileSystemIconLoader('./assets/icons', svg => svg),
      }),
      viteCompression({
        verbose: true,
        disable: false,
        deleteOriginFile: false,
        threshold: 10240,
        algorithm: 'gzip',
        ext: '.gz',
      }),
      visualizer({
        emitFile: true,
        filename: 'build/stats.html',
        open: false,
        gzipSize: true,
        brotliSize: true,
      }),
      // viteMockServe({
      //   mockPath: 'mock',
      //   localEnabled: command === 'serve',
      //   prodEnabled: false,
      //   supportTs: false,
      //   watchFiles: true,
      // }),
    ],
    server: {
      host: "0.0.0.0",
      port: 8081,
      proxy: {},
      open: false,
    },
  }
})