fix: 移除静默 fallback 数据，API 失败时明确提示用户

src/app/api/room/create/route.ts

@@ -1,7 +1,6 @@
 import { NextResponse } from "next/server";
 import { createRoom } from "@/lib/store";
 import { Restaurant } from "@/types";
-import { fallbackRestaurants } from "@/data/restaurants";
 
 interface AmapPoiV5 {
   id: string;
@@ -95,9 +94,6 @@ function filterByPrice(
 }
 
 export async function POST(req: Request) {
-  let restaurants: Restaurant[] = fallbackRestaurants;
-  let creatorId = "";
-
   try {
     const body = await req.json();
     const {
@@ -108,49 +104,61 @@ export async function POST(req: Request) {
       cuisine = "不限",
       userId = "",
     } = body;
-    creatorId = userId;
 
-    if (lat && lng) {
-      const apiKey = process.env.AMAP_API_KEY;
-      if (!apiKey) {
-        console.error("AMAP_API_KEY not configured");
-      } else {
-        const url = new URL("https://restapi.amap.com/v5/place/around");
-        url.searchParams.set("key", apiKey);
-        url.searchParams.set("location", `${lng},${lat}`);
-        url.searchParams.set("radius", String(radius));
-        url.searchParams.set("types", "050000");
-        url.searchParams.set("show_fields", "business,photos");
-        url.searchParams.set("sortrule", "weight");
-
-        const needsPriceFilter = priceRange !== "any";
-        url.searchParams.set("page_size", needsPriceFilter ? "25" : "15");
-
-        if (cuisine && cuisine !== "不限") {
-          url.searchParams.set("keywords", cuisine);
-        }
-
-        const amapRes = await fetch(url.toString());
-        const amapData = await amapRes.json();
-
-        if (amapData.status === "1" && amapData.pois?.length > 0) {
-          let results: Restaurant[] = amapData.pois.map(mapPoiToRestaurant);
-          results = filterByPrice(results, priceRange);
-          restaurants = results.slice(0, 15);
-        }
-      }
+    if (!lat || !lng) {
+      return NextResponse.json(
+        { error: "无法获取位置信息，请允许定位权限后重试" },
+        { status: 400 },
+      );
     }
-  } catch (e) {
-    console.error("Amap API error, using fallback data:", e);
-  }
 
-  try {
-    const roomId = await createRoom(restaurants, creatorId);
+    const apiKey = process.env.AMAP_API_KEY;
+    if (!apiKey) {
+      console.error("AMAP_API_KEY not configured");
+      return NextResponse.json(
+        { error: "服务配置异常，请稍后重试" },
+        { status: 500 },
+      );
+    }
+
+    const url = new URL("https://restapi.amap.com/v5/place/around");
+    url.searchParams.set("key", apiKey);
+    url.searchParams.set("location", `${lng},${lat}`);
+    url.searchParams.set("radius", String(radius));
+    url.searchParams.set("types", "050000");
+    url.searchParams.set("show_fields", "business,photos");
+    url.searchParams.set("sortrule", "weight");
+
+    const needsPriceFilter = priceRange !== "any";
+    url.searchParams.set("page_size", needsPriceFilter ? "25" : "15");
+
+    if (cuisine && cuisine !== "不限") {
+      url.searchParams.set("keywords", cuisine);
+    }
+
+    const amapRes = await fetch(url.toString());
+    const amapData = await amapRes.json();
+
+    let restaurants: Restaurant[] = [];
+    if (amapData.status === "1" && amapData.pois?.length > 0) {
+      let results: Restaurant[] = amapData.pois.map(mapPoiToRestaurant);
+      results = filterByPrice(results, priceRange);
+      restaurants = results.slice(0, 15);
+    }
+
+    if (restaurants.length === 0) {
+      return NextResponse.json(
+        { error: "附近没有找到餐厅，试试扩大搜索范围或换个菜系" },
+        { status: 404 },
+      );
+    }
+
+    const roomId = await createRoom(restaurants, userId);
     return NextResponse.json({ roomId, restaurants });
   } catch (e) {
     console.error("Failed to create room:", e);
     return NextResponse.json(
-      { error: "创建房间失败，请重试" },
+      { error: "搜索餐厅失败，请检查网络后重试" },
       { status: 500 },
     );
   }

src/app/page.tsx

@@ -153,20 +153,21 @@ export default function LandingPage() {
         body: JSON.stringify({ ...coords, radius, priceRange, cuisine, userId: getUserId() }),
       });
 
+      const data = await res.json();
+
       if (!res.ok) {
-        throw new Error("创建房间失败");
+        throw new Error(data.error || "创建房间失败");
       }
 
-      const { roomId } = await res.json();
-      if (!roomId) {
+      if (!data.roomId) {
         throw new Error("创建房间失败");
       }
 
       setLoadingText("正在进入房间...");
-      await joinRoom(roomId);
-      router.push(`/room/${roomId}`);
-    } catch {
-      setError("创建失败，请重试");
+      await joinRoom(data.roomId);
+      router.push(`/room/${data.roomId}`);
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "创建失败，请重试");
       setLoading(false);
       setLoadingText("");
     }