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

const DEV_HOST = "0.0.0.0";
const DEV_PORT = 5173;
const DEV_PUBLIC_HOST = "shell.biboer.cn";
const DEV_CERT_PATH = "/Users/gavin/.acme.sh/shell.biboer.cn_ecc/fullchain.cer";
const DEV_KEY_PATH = "/Users/gavin/.acme.sh/shell.biboer.cn_ecc/shell.biboer.cn.key";

function resolveDevHttpsConfig() {
  // 优先复用 acme.sh 证书，确保本地开发服务直接以 HTTPS 暴露。
  if (!fs.existsSync(DEV_CERT_PATH) || !fs.existsSync(DEV_KEY_PATH)) {
    return undefined;
  }

  return {
    cert: fs.readFileSync(DEV_CERT_PATH),
    key: fs.readFileSync(DEV_KEY_PATH)
  };
}

export default defineConfig({
  plugins: [vue()],
  server: {
    host: DEV_HOST,
    port: DEV_PORT,
    strictPort: true,
    https: resolveDevHttpsConfig(),
    // 允许通过外网域名访问 dev server（含 HMR websocket 握手）。
    allowedHosts: [DEV_PUBLIC_HOST],
    // 明确 HMR 走外网域名，避免客户端回退到 localhost 导致连接拒绝。
    hmr: {
      protocol: "wss",
      host: DEV_PUBLIC_HOST,
      clientPort: DEV_PORT,
      port: DEV_PORT
    },
    proxy: {
      "/ws/terminal": {
        target: "ws://127.0.0.1:8787",
        ws: true,
        changeOrigin: true
      }
    }
  },
  resolve: {
    alias: {
      "@": fileURLToPath(new URL("./src", import.meta.url))
    }
  }
});