import path from 'node:path'
import dayjs from 'dayjs'
import { defineConfig, loadEnv } from 'vite'
import Uni from '@dcloudio/vite-plugin-uni'
// @see https://uni-helper.js.org/vite-plugin-uni-pages
import UniPages from '@uni-helper/vite-plugin-uni-pages'
// @see https://uni-helper.js.org/vite-plugin-uni-layouts
import UniLayouts from '@uni-helper/vite-plugin-uni-layouts'
// @see https://github.com/uni-helper/vite-plugin-uni-platform
// 需要与 @uni-helper/vite-plugin-uni-pages 插件一起使用
import UniPlatform from '@uni-helper/vite-plugin-uni-platform'
// @see https://github.com/uni-helper/vite-plugin-uni-manifest
import UniManifest from '@uni-helper/vite-plugin-uni-manifest'
// @see https://github.com/uni-helper/vite-plugin-uni-components
import Components from '@uni-helper/vite-plugin-uni-components'
// @see https://unocss.dev/
import UnoCSS from 'unocss/vite'
// import autoprefixer from 'autoprefixer'
// @see https://github.com/jpkleemans/vite-svg-loader
import svgLoader from 'vite-svg-loader'
import { createSvgIconsPlugin } from 'vite-plugin-svg-icons'
// @see https://github.com/vbenjs/vite-plugin-vue-setup-extend
import vueSetupExtend from 'vite-plugin-vue-setup-extend'
// @see https://github.com/vbenjs/vite-plugin-svg-icons
import AutoImport from 'unplugin-auto-import/vite'
// import viteCompression from 'vite-plugin-compression'
import ViteRestart from 'vite-plugin-restart'
import { visualizer } from 'rollup-plugin-visualizer'
// import imagemin from './vite-plugins/imagemin'

console.log('process.platform -> ', process.platform)

// https://vitejs.dev/config/
export default ({ command, mode }) => {
  // console.log(mode === process.env.NODE_ENV) // true

  // mode: 区分生产环境还是开发环境
  console.log('command, mode -> ', command, mode)
  // pnpm dev:h5 时得到 => serve development
  // pnpm build:h5 时得到 => build production
  // pnpm dev:mp-weixin 时得到 => build development (注意区别，command为build)
  // pnpm build:mp-weixin 时得到 => build production

  // process.cwd(): 获取当前文件的目录跟地址
  // loadEnv(): 返回当前环境env文件中额外定义的变量
  const env = loadEnv(mode, path.resolve(process.cwd(), 'env'))
  console.log('env -> ', env)
  console.log('process.env.UNI_PLATFORM: ', process.env.UNI_PLATFORM) // 得到 mp-weixin, h5, app 等
  console.log('isH5: ', process.env.UNI_PLATFORM === 'h5') // 得到 mp-weixin, h5, app 等

  return defineConfig({
    envDir: './env', // 自定义env目录

    plugins: [
      UniPages({
        exclude: ['**/components/**/**.*'],
        routeBlockLang: 'json5', // 虽然设了默认值，但是vue文件还是要加上 lang="json5", 这样才能很好地格式化
        homePage: 'pages/index/index',
        subPackages: ['src/pages-sub'], // 是个数组，可以配置多个
      }),
      UniLayouts(),
      UniPlatform(),
      UniManifest(),
      // 自动安装 src/components 里面的组件为全局组件，非全局组件不要放到 src/components
      Components(),
      // UniXXX 需要在 Uni 之前引入
      Uni(),
      UnoCSS(),
      // svg 可以当做组件来使用(Vite plugin to load SVG files as Vue components, using SVGO for optimization.)
      svgLoader({
        defaultImport: 'url', // or 'raw'
      }),
      createSvgIconsPlugin({
        // 指定要缓存的文件夹
        iconDirs: [path.resolve(process.cwd(), 'src/assets/svg')],
        // 指定symbolId格式
        symbolId: 'icon-[dir]-[name]',
      }),
      vueSetupExtend(),
      AutoImport({
        imports: ['vue', 'uni-app'],
        dts: 'src/auto-import.d.ts',
        // dirs: ['src/hooks'], // 自动导入 hooks
        eslintrc: { enabled: false },
        vueTemplate: true, // default false
      }),

      // viteCompression(),
      ViteRestart({
        // 通过这个插件，在修改vite.config.js文件则不需要重新运行也生效配置
        restart: ['vite.config.js'],
      }),
      // h5环境增加编译时间
      process.env.UNI_PLATFORM === 'h5' && {
        name: 'html-transform',
        transformIndexHtml(html) {
          return html.replace('%BUILD_DATE%', dayjs().format('YYYY-MM-DD HH:mm:ss'))
        },
      },
      // 打包分析插件
      mode === 'production' &&
        visualizer({
          filename: './node_modules/.cache/visualizer/stats.html',
          open: true,
          gzipSize: true,
          brotliSize: true,
        }),
      // 这个图片压缩插件比较耗时，希望仅在生产环境使用
      // TODO: 缓存每次压缩过的图片，已经压缩过的不再压缩
      // imagemin(mode === 'production'),
    ],
    define: {
      __UNI_PLATFORM__: JSON.stringify(process.env.UNI_PLATFORM),
    },
    css: {
      postcss: {
        plugins: [
          // autoprefixer({
          //   // 指定目标浏览器
          //   overrideBrowserslist: ['> 1%', 'last 2 versions'],
          // }),
        ],
      },
    },

    resolve: {
      alias: {
        '@': path.join(process.cwd(), './src'),
        '@img': path.join(process.cwd(), './src/static/images'),
      },
    },
    server: {
      host: '0.0.0.0',
      hmr: true,
      port: Number.parseInt(env.VITE_APP_PORT, 10),
    },
    build: {
      minify: 'terser',
      terserOptions: {
        compress: {
          drop_console: env.VITE_DELETE_CONSOLE === 'true',
          drop_debugger: env.VITE_DELETE_CONSOLE === 'true',
        },
      },
      // 解决windows系统对微信小程序自动关闭服务的问题
      watch:
        process.platform === 'win32' // 检测是否为 windows 系统
          ? {
              exclude: ['node_modules/**', '/__uno.css'],
            }
          : null,
    },
  })
}