import { defineConfig, loadEnv } from 'vite'
import vue from '@vitejs/plugin-vue'
import path from 'path'
import viteCompression from 'vite-plugin-compression'
import Components from 'unplugin-vue-components/vite'
import AutoImport from 'unplugin-auto-import/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
import { visualizer } from 'rollup-plugin-visualizer'
import viteImagemin from 'vite-plugin-imagemin'

export default ({ mode }) => {
  const root = process.cwd()
  const env = loadEnv(mode, root)
  const { VITE_VERSION, VITE_PORT, VITE_BASE_URL, VITE_API_URL } = env

  console.log(`🚀 API_URL = ${VITE_API_URL}`)
  console.log(`🚀 VERSION = ${VITE_VERSION}`)

  return defineConfig({
    define: {
      __APP_VERSION__: JSON.stringify(VITE_VERSION)
    },
    base: VITE_BASE_URL,
    server: {
      port: parseInt(VITE_PORT),
      proxy: {
        '/api': {
          target: VITE_API_URL,
          changeOrigin: true,
          rewrite: (path) => path.replace(/^\/api/, '')
        }
      },
      host: true
    },
    // 路径别名
    resolve: {
      alias: {
        '@': resolvePath('src'),
        '@views': resolvePath('src/views'),
        '@comps': resolvePath('src/components'),
        '@imgs': resolvePath('src/assets/img'),
        '@icons': resolvePath('src/assets/icons'),
        '@utils': resolvePath('src/utils'),
        '@stores': resolvePath('src/store'),
        '@plugins': resolvePath('src/plugins'),
        '@styles': resolvePath('src/assets/styles')
      }
    },
    build: {
      target: 'es2015',
      outDir: 'dist',
      chunkSizeWarningLimit: 2000,
      minify: 'terser',
      terserOptions: {
        compress: {
          drop_console: true, // 生产环境去除 console
          drop_debugger: true // 生产环境去除 debugger
        }
      },
      rollupOptions: {
        output: {
          manualChunks: {
            vendor: ['vue', 'vue-router', 'pinia', 'element-plus']
          }
        }
      }
    },
    plugins: [
      vue(),
      // 自动导入 components 下面的组件，无需 import 引入
      Components({
        deep: true,
        extensions: ['vue'],
        dirs: ['src/components'], // 自动导入的组件目录
        resolvers: [ElementPlusResolver()],
        dts: 'src/types/components.d.ts' // 指定类型声明文件的路径
      }),
      AutoImport({
        imports: ['vue', 'vue-router', '@vueuse/core', 'pinia'],
        resolvers: [ElementPlusResolver()],
        dts: 'src/types/auto-imports.d.ts',
        eslintrc: {
          // 这里先设置成true然后pnpm dev 运行之后会生成 .auto-import.json 文件之后，在改为false
          enabled: true,
          filepath: './.auto-import.json',
          globalsPropValue: true
        }
      }),
      // 打包分析
      visualizer({
        open: false,
        gzipSize: true,
        brotliSize: true,
        filename: 'dist/stats.html' // 分析图生成的文件名及路径
      }),
      // 压缩
      viteCompression({
        verbose: true, // 是否在控制台输出压缩结果
        disable: false, // 是否禁用
        algorithm: 'gzip', // 压缩算法,可选 [ 'gzip' , 'brotliCompress' ,'deflate' , 'deflateRaw']
        ext: '.gz', // 压缩后的文件名后缀
        threshold: 10240, // 只有大小大于该值的资源会被处理 10240B = 10KB
        deleteOriginFile: false // 压缩后是否删除原文件
      }),
      // 图片压缩
      viteImagemin({
        verbose: true, // 是否在控制台输出压缩结果
        // 图片压缩配置
        gifsicle: {
          optimizationLevel: 7,
          interlaced: false
        },
        optipng: {
          optimizationLevel: 7
        },
        mozjpeg: {
          quality: 20
        },
        pngquant: {
          quality: [0.8, 0.9],
          speed: 4
        },
        svgo: {
          plugins: [
            {
              name: 'removeViewBox'
            },
            {
              name: 'removeEmptyAttrs',
              active: false
            }
          ]
        }
      })
    ],
    // 预加载项目必需的组件
    optimizeDeps: {
      include: [
        'vue',
        'vue-router',
        'pinia',
        'axios',
        '@vueuse/core',
        'echarts',
        '@wangeditor/editor',
        '@wangeditor/editor-for-vue',
        'vue-i18n',
        'element-plus/es/components/form/style/css',
        'element-plus/es/components/form-item/style/css',
        'element-plus/es/components/button/style/css',
        'element-plus/es/components/input/style/css',
        'element-plus/es/components/input-number/style/css',
        'element-plus/es/components/switch/style/css',
        'element-plus/es/components/upload/style/css',
        'element-plus/es/components/menu/style/css',
        'element-plus/es/components/col/style/css',
        'element-plus/es/components/icon/style/css',
        'element-plus/es/components/row/style/css',
        'element-plus/es/components/tag/style/css',
        'element-plus/es/components/dialog/style/css',
        'element-plus/es/components/loading/style/css',
        'element-plus/es/components/radio/style/css',
        'element-plus/es/components/radio-group/style/css',
        'element-plus/es/components/popover/style/css',
        'element-plus/es/components/scrollbar/style/css',
        'element-plus/es/components/tooltip/style/css',
        'element-plus/es/components/dropdown/style/css',
        'element-plus/es/components/dropdown-menu/style/css',
        'element-plus/es/components/dropdown-item/style/css',
        'element-plus/es/components/sub-menu/style/css',
        'element-plus/es/components/menu-item/style/css',
        'element-plus/es/components/divider/style/css',
        'element-plus/es/components/card/style/css',
        'element-plus/es/components/link/style/css',
        'element-plus/es/components/breadcrumb/style/css',
        'element-plus/es/components/breadcrumb-item/style/css',
        'element-plus/es/components/table/style/css',
        'element-plus/es/components/tree-select/style/css',
        'element-plus/es/components/table-column/style/css',
        'element-plus/es/components/select/style/css',
        'element-plus/es/components/option/style/css',
        'element-plus/es/components/pagination/style/css',
        'element-plus/es/components/tree/style/css',
        'element-plus/es/components/alert/style/css',
        'element-plus/es/components/radio-button/style/css',
        'element-plus/es/components/checkbox-group/style/css',
        'element-plus/es/components/checkbox/style/css',
        'element-plus/es/components/tabs/style/css',
        'element-plus/es/components/tab-pane/style/css',
        'element-plus/es/components/rate/style/css',
        'element-plus/es/components/date-picker/style/css',
        'element-plus/es/components/notification/style/css',
        'element-plus/es/components/image/style/css',
        'element-plus/es/components/statistic/style/css',
        'element-plus/es/components/watermark/style/css',
        'element-plus/es/components/config-provider/style/css',
        'element-plus/es/components/text/style/css',
        'element-plus/es/components/drawer/style/css',
        'element-plus/es/components/color-picker/style/css',
        'element-plus/es/components/backtop/style/css',
        'element-plus/es/components/message-box/style/css',
        'element-plus/es/components/skeleton/style/css',
        'element-plus/es/components/skeleton/style/css',
        'element-plus/es/components/skeleton-item/style/css',
        'element-plus/es/components/badge/style/css',
        'element-plus/es/components/steps/style/css',
        'element-plus/es/components/step/style/css',
        'element-plus/es/components/avatar/style/css',
        'element-plus/es/components/descriptions/style/css',
        'element-plus/es/components/descriptions-item/style/css',
        'element-plus/es/components/checkbox-group/style/css',
        'element-plus/es/components/progress/style/css',
        'element-plus/es/components/image-viewer/style/css',
        'element-plus/es/components/empty/style/css',
        'element-plus/es/components/segmented/style/css'
      ]
    },
    css: {
      preprocessorOptions: {
        // sass variable and mixin
        scss: {
          api: 'modern-compiler',
          additionalData: `
            @use "@styles/variables.scss" as *; @use "@styles/mixin.scss" as *;
          `
        }
      },
      postcss: {
        plugins: [
          {
            postcssPlugin: 'internal:charset-removal',
            AtRule: {
              charset: (atRule) => {
                if (atRule.name === 'charset') {
                  atRule.remove()
                }
              }
            }
          }
        ]
      }
    }
  })
}

function resolvePath(paths) {
  return path.resolve(__dirname, paths)
}