// 开发代理与统一前缀保证 fetch、文件下载和 SSE 使用同一套鉴权路径。
import { defineConfig, loadEnv } from "vite";
import vue from "@vitejs/plugin-vue";
export default defineConfig(({ mode }) => {
  const env = loadEnv(mode, process.cwd(), "");
  // 使用已有 ESM 发行文件，避免受限 Windows 环境的预打包进程向盘符根目录扫描。
  return {
    plugins: [vue()],
    resolve: {
      alias: [
        { find: /^dayjs$/, replacement: "dayjs/esm/index.js" },
        {
          find: /^dayjs\/plugin\/([^/.]+)(?:\.js)?$/,
          replacement: "dayjs/esm/plugin/$1/index.js",
        },
        {
          find: /^dayjs\/locale\/([^/.]+)(?:\.js)?$/,
          replacement: "dayjs/esm/locale/$1.js",
        },
      ],
    },
    optimizeDeps: { noDiscovery: true, include: [] },
    server: {
      port: Number(env.FRONTEND_PORT || 5173),
      strictPort: true,
      proxy: {
        "/api/v1": {
          target: env.BACKEND_URL || "http://127.0.0.1:8000",
          changeOrigin: true,
        },
      },
    },
    preview: { port: 4173 },
    build: { chunkSizeWarningLimit: 1200 },
  };
});