import { resolve } from 'path'
import type { ConfigEnv, UserConfig } from 'vite'
import { loadEnv } from 'vite'
import { createVitePlugins } from './build/vite'
import { exclude, include } from "./build/vite/optimize"
import { visualizer } from 'rollup-plugin-visualizer';
// 👇 引入 obfuscator 插件
import obfuscator from 'rollup-plugin-obfuscator'
// 当前执行node命令时文件夹的地址(工作目录)
const root = process.cwd()

// 路径查找
function pathResolve(dir: string) {
  return resolve(root, '.', dir)
}

// https://vitejs.dev/config/
export default ({ command, mode }: ConfigEnv): UserConfig => {
  let env = {} as any
  const isBuild = command === 'build'
  if (!isBuild) {
    env = loadEnv((process.argv[3] === '--mode' ? process.argv[4] : process.argv[3]), root)
  } else {
    env = loadEnv(mode, root)
  }
  // 是否启用代码混淆（建议仅在生产构建时开启）
  const shouldObfuscate = true
  return {
    base: env.VITE_BASE_PATH,
    root: root,
    // 服务端渲染
    server: {
      port: env.VITE_PORT, // 端口号
      host: "0.0.0.0",
      open: env.VITE_OPEN === 'true',
      // 本地跨域代理. 目前注释的原因：暂时没有用途，server 端已经支持跨域
      proxy: {
        '/dexdev': {
          target: 'https://yudao-admin.hofo.co/dexdev',
          ws: false,
          changeOrigin: true,
          rewrite: (path) => path.replace(new RegExp(`^/dexdev`), ''),
        },
        // '/admin-api/system': {
        //   target: env.VITE_BASE_URL,
        //   ws: false,
        //   changeOrigin: true,
        //   // rewrite: (path) => path.replace(new RegExp(`^/admin-api`), ''),
        // },
        // '/admin-api/laboratory': {
        //   target: env.VITE_BASE_URL2,
        //   ws: false,
        //   changeOrigin: true,
        // }
      },
    },
    // 项目使用的vite插件。 单独提取到build/vite/plugin中管理
    plugins: [
      createVitePlugins(),
      // visualizer({ open: true }) // 构建后自动打开分析页面
    ],
    css: {
      preprocessorOptions: {
        scss: {
          additionalData: '@use "@/styles/variables.scss" as *;',
          javascriptEnabled: true,
          silenceDeprecations: ["legacy-js-api"], // 参考自 https://stackoverflow.com/questions/78997907/the-legacy-js-api-is-deprecated-and-will-be-removed-in-dart-sass-2-0-0
        }
      }
    },
    resolve: {
      extensions: ['.mjs', '.js', '.ts', '.jsx', '.tsx', '.json', '.scss', '.css'],
      alias: [
        {
          find: 'vue-i18n',
          replacement: 'vue-i18n/dist/vue-i18n.cjs.js'
        },
        {
          find: /\@\//,
          replacement: `${pathResolve('src')}/`
        }
      ]
    },
    build: {
      minify: 'terser',
      outDir: env.VITE_OUT_DIR || 'dist',
      // sourcemap: env.VITE_SOURCEMAP === 'true' ? 'inline' : false,
      sourcemap: false, // ❗强烈建议关闭 sourcemap，否则可还原源码，造成隐私泄露
      // brotliSize: false,
      terserOptions: {
        compress: {
          drop_debugger: env.VITE_DROP_DEBUGGER === 'true',
          drop_console: env.VITE_DROP_CONSOLE === 'true',
          // drop_console: false,
          ecma: 2020, // 使用新版压缩标准
          passes: 2 // 减少压缩轮次（默认3）
        },
        format: {
          comments: false // 移除注释
        },
        maxWorkers: 4 // 启用多线程
      },
      chunkSizeWarningLimit: 1500, // 提高 chunk 大小警告阈值
      rollupOptions: {
        // external: [/^@grapecity-software\/.*/],
        output: {
          manualChunks: {
            echarts: ['echarts'], // 将 echarts 单独打包，参考 https://gitee.com/yudaocode/yudao-ui-admin-vue3/issues/IAB1SX 讨论
            spreadSheetsDesignerResourcesCn: ['@grapecity-software/spread-sheets-designer-resources-cn'],
            spreadSheetsDesignerResourcesEn: ['@grapecity-software/spread-sheets-designer-resources-en'],
            spreadSheets: ['@grapecity-software/spread-sheets'],
            spreadExcelio: ['@grapecity-software/spread-excelio'],
            spreadSheetsBarcode: ['@grapecity-software/spread-sheets-barcode'],
            spreadSheetsCharts: ['@grapecity-software/spread-sheets-charts'],
            spreadSheetsDesigner: ['@grapecity-software/spread-sheets-designer'],
            spreadSheetsIo: ['@grapecity-software/spread-sheets-io'],
            spreadSheetsLanguagepackages: ['@grapecity-software/spread-sheets-languagepackages'],
            spreadSheetsPdf: ['@grapecity-software/spread-sheets-pdf'],
            spreadSheetsPivotAddon: ['@grapecity-software/spread-sheets-pivot-addon'],
            spreadSheetsPrint: ['@grapecity-software/spread-sheets-print'],
            spreadSheetsShapes: ['@grapecity-software/spread-sheets-shapes'],
            spreadSheetsTablesheet: ['@grapecity-software/spread-sheets-tablesheet'],
            spreadSheetsDesignerVue: ['@grapecity-software/spread-sheets-designer-vue'],
          }
        },
        plugins: shouldObfuscate ? [
          obfuscator({
            // 混淆选项（详细见下文）
            options: {
              compact: true, // 紧凑输出
              controlFlowFlattening: false, // 控制流扁平化（影响性能）
              deadCodeInjection: false, // 注入死代码（增加体积）
              debugProtection: false, // 调试保护（会导致 devtools 卡顿）
              debugProtectionInterval: 0,
              disableConsoleOutput: false,
              identifierNamesGenerator: 'hexadecimal', // 标识符命名方式
              log: false,
              renameGlobals: false, // 是否重命名全局变量
              selfDefending: true, // 自我防御，防格式化调试
              stringArray: true, // 字符串加密存储
              stringArrayEncoding: ['base64'], // 编码方式
              stringArrayIndexShift: true,
              stringArrayRotate: true,
              stringArrayShuffle: true,
              stringArrayWrappersCount: 1,
              stringArrayWrappersChainedCalls: true,
              stringArrayThreshold: 0.75,
              transformObjectKeys: false,
              unicodeEscapeSequence: false, // 使用 \u 编码字符
            },
            // 指定需要混淆的 chunk 名称或正则匹配
            include: [
              'chunk-[a-zA-Z0-9]+\\.js$',   // 只混淆 chunks
              'index\\.[a-zA-Z0-9]+\\.js$'  // 入口文件
            ],
            exclude: [
              'assets/locales-*.js',        // 排除 locales 分包
              'vendors-*.js',
              'node_modules/**'
            ]
          })
        ]
          : []
      },
    },
    optimizeDeps: { include, exclude }
  }
}