统一盲盒前端 API 调用层并收敛错误处理

src/app/blindbox/page.tsx

@@ -18,6 +18,7 @@ import {
   X,
 } from "lucide-react";
 import { getCachedProfile, isRegistered } from "@/lib/userId";
+import { requestJson } from "@/lib/fetcher";
 import AuthModal from "@/components/AuthModal";
 import Button from "@/components/Button";
 import Input from "@/components/Input";
@@ -230,13 +231,10 @@ export default function BlindboxLobbyPage() {
     setCreating(true);
     setError("");
     try {
-      const res = await fetch("/api/blindbox/room", {
+      const data = await requestJson<{ code: string }, { name?: string }>("/api/blindbox/room", {
         method: "POST",
-        headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ name: name || undefined }),
+        body: { name: name || undefined },
       });
-      const data = await res.json();
-      if (!res.ok) throw new Error(data.error);
       router.push(`/blindbox/${data.code}`);
     } catch (e) {
       setError(e instanceof Error ? e.message : "创建失败");
@@ -251,13 +249,10 @@ export default function BlindboxLobbyPage() {
     setJoining(true);
     setError("");
     try {
-      const res = await fetch("/api/blindbox/room/join", {
+      const data = await requestJson<{ code: string }, { code: string }>("/api/blindbox/room/join", {
         method: "POST",
-        headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ code }),
+        body: { code },
       });
-      const data = await res.json();
-      if (!res.ok) throw new Error(data.error);
       router.push(`/blindbox/${data.code}`);
     } catch (e) {
       setError(e instanceof Error ? e.message : "加入失败");
@@ -270,14 +265,9 @@ export default function BlindboxLobbyPage() {
     if (deletingId || !profile) return;
     setDeletingId(room.id);
     try {
-      const res = await fetch(`/api/blindbox/room/${room.code}`, {
+      await requestJson<{ action: "deleted" | "left" }>(`/api/blindbox/room/${room.code}`, {
         method: "DELETE",
-        headers: { "Content-Type": "application/json" },
       });
-      if (!res.ok) {
-        const data = await res.json();
-        throw new Error(data.error || "操作失败");
-      }
       mutateRooms((prev) => prev ? { rooms: prev.rooms.filter((r) => r.id !== room.id) } : prev, false);
       setConfirmDeleteId(null);
       toast.show(room.creatorId === profile.id ? "房间已删除" : "已退出房间");