import { fileURLToPath, URL } from "node:url"
import { defineConfig } from "vite";
import tailwindcss from "@tailwindcss/vite"
import vue from "@vitejs/plugin-vue";

const host = process.env.TAURI_DEV_HOST;

// https://vite.dev/config/
export default defineConfig(async () => ({
  plugins: [
    vue(),
    tailwindcss(),
  ],
  resolve: {
    alias: {
      "@": fileURLToPath(new URL("./src", import.meta.url)),
    },
  },

  // 单入口：主窗口
  build: {
    rollupOptions: {
      input: {
        main: fileURLToPath(new URL("./index.html", import.meta.url)),
      },
      // 分包策略：vendor 独立 chunk，业务迭代时不强制重下载依赖
      // - vue/pinia/@vueuse: Vue 生态核心，变更频率低
      // - reka-ui/@lucide: UI 组件库，体积较大且稳定
      // - tauri: Tauri 前端 API，仅在 Tauri 升级时变化
      output: {
        manualChunks: {
          'vue-vendor': ['vue', 'pinia', '@vueuse/core'],
          'ui-vendor': ['reka-ui', '@lucide/vue'],
          'tauri-vendor': [
            '@tauri-apps/api',
            '@tauri-apps/plugin-autostart',
            '@tauri-apps/plugin-dialog',
            '@tauri-apps/plugin-global-shortcut',
            '@tauri-apps/plugin-opener',
          ],
        },
      },
    },
  },

  // 防止 Vite 缓存 tauri-plugin-snap-layout，否则注入脚本中的占位符无法被替换
  optimizeDeps: {
    exclude: ["tauri-plugin-snap-layout"],
  },

  // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`
  //
  // 1. prevent Vite from obscuring rust errors
  clearScreen: false,
  // 2. tauri expects a fixed port, fail if that port is not available
  server: {
    port: 1420,
    strictPort: true,
    host: host || false,
    hmr: host
      ? {
        protocol: "ws",
        host,
        port: 1421,
      }
      : undefined,
    watch: {
      // 3. tell Vite to ignore watching `src-tauri`
      ignored: ["**/src-tauri/**"],
    },
  },
}));