修复定时器与动画回调清理不完整问题

PROJECT_AUDIT_2026-03-03.md

@@ -167,10 +167,15 @@
   - 先清理 error 级规则，再统一处理 warning；
   - 针对 hooks 规则建立最小回归测试。
 
-### P2-5 定时器清理不完整（潜在内存泄漏/卸载后状态写入）
+### P2-5 定时器清理不完整（潜在内存泄漏/卸载后状态写入）【已完成】
+- 修复状态：✅ 已完成（2026-03-03）
+- 修复内容：
+  - `useBlindboxIdeas` 增加统一 `useEffect` cleanup，卸载时清理所有 `timersRef`；
+  - `useBlindboxDraw` 增加 confetti 停止逻辑（timeout + `requestAnimationFrame` + `confetti.reset`），并在 `handleContinue` 与 unmount 时清理；
+  - 同步修正盲盒房间页与 `useBlindboxRoom` 的定时器 cleanup 方式，避免 ref 清理时机不稳定。
 - 证据：
-  - `src/hooks/useBlindboxIdeas.ts:52` + `:129`（保存定时器，但无统一 cleanup）
+  - `src/hooks/useBlindboxIdeas.ts` 已新增 `timersRef` 统一清理；
-  - `src/hooks/useBlindboxDraw.ts:25` + `:38`（定时器与动画回调未见 unmount 清理）
+  - `src/hooks/useBlindboxDraw.ts` 已新增 confetti 与动画回调销毁逻辑。
 - 影响：
   - 页面切换或快速操作下可能出现卸载后 setState、额外渲染噪音。
 - 建议：

src/app/blindbox/[code]/page.tsx

@@ -42,7 +42,11 @@ export default function BlindboxRoomPage() {
   const timersRef = useRef<ReturnType<typeof setTimeout>[]>([]);
 
   useEffect(() => {
-    return () => { timersRef.current.forEach(clearTimeout); };
+    const timers = timersRef.current;
+    return () => {
+      timers.forEach(clearTimeout);
+      timers.length = 0;
+    };
   }, []);
 
   // Hook: Room
@@ -58,7 +62,6 @@ export default function BlindboxRoomPage() {
     input, setInput, submitting, suggestions, suggestionsLoading,
     suggestionsSource, poolCount, setPoolCount, myIdeas, drawnHistory,
     setDrawnHistory, submitFlash, error, setError, inputRef,
-    boxControls: ideaBoxControls,
     fetchIdeas, fetchSuggestions, refreshSuggestions,
     handleSubmit, handleEditIdea, handleDeleteIdea,
   } = useBlindboxIdeas(room, profile);

src/hooks/useBlindboxDraw.ts

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useRef, useCallback } from "react";
+import { useState, useRef, useCallback, useEffect } from "react";
 import { useAnimation } from "framer-motion";
 import confetti from "canvas-confetti";
 import type { DrawnIdea } from "@/components/BlindboxDrawnHistory";
@@ -23,8 +23,21 @@ export function useBlindboxDraw(
   const boxControls = useAnimation();
   const confettiAliveRef = useRef(false);
   const timersRef = useRef<ReturnType<typeof setTimeout>[]>([]);
+  const animationFrameRef = useRef<number | null>(null);
+
+  const stopConfetti = useCallback(() => {
+    confettiAliveRef.current = false;
+    if (animationFrameRef.current !== null) {
+      cancelAnimationFrame(animationFrameRef.current);
+      animationFrameRef.current = null;
+    }
+    timersRef.current.forEach(clearTimeout);
+    timersRef.current = [];
+    if (typeof confetti.reset === "function") confetti.reset();
+  }, []);
 
   const fireConfetti = useCallback(() => {
+    stopConfetti();
     const colors = ["#a855f7", "#6366f1", "#ec4899", "#f59e0b", "#10b981"];
     confetti({ particleCount: 100, spread: 120, origin: { y: 0.4 }, colors, startVelocity: 45, ticks: 250 });
     confettiAliveRef.current = true;
@@ -33,10 +46,21 @@ export function useBlindboxDraw(
       if (Date.now() > end || !confettiAliveRef.current) return;
       confetti({ particleCount: 3, angle: 60, spread: 55, origin: { x: 0, y: 0.6 }, colors, startVelocity: 35, ticks: 150 });
       confetti({ particleCount: 3, angle: 120, spread: 55, origin: { x: 1, y: 0.6 }, colors, startVelocity: 35, ticks: 150 });
-      requestAnimationFrame(frame);
+      animationFrameRef.current = requestAnimationFrame(frame);
     };
-    timersRef.current.push(setTimeout(frame, 200));
+    timersRef.current.push(
-  }, []);
+      setTimeout(() => {
+        animationFrameRef.current = requestAnimationFrame(frame);
+      }, 200),
+    );
+  }, [stopConfetti]);
+
+  useEffect(
+    () => () => {
+      stopConfetti();
+    },
+    [stopConfetti],
+  );
 
   const handleDraw = async () => {
     if (poolCount === 0 || !profile || !room) {
@@ -78,10 +102,11 @@ export function useBlindboxDraw(
   };
 
   const handleContinue = useCallback(() => {
+    stopConfetti();
     setPhase("pool");
     setRevealedIdea(null);
     setShowShareCard(false);
-  }, [setPhase]);
+  }, [setPhase, stopConfetti]);
 
   return {
     revealedIdea,

src/hooks/useBlindboxIdeas.ts

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useCallback, useRef } from "react";
+import { useState, useCallback, useEffect, useRef } from "react";
 import { useAnimation } from "framer-motion";
 import { useToast } from "@/hooks/useToast";
 import type { MyIdea } from "@/components/BlindboxMyIdeas";
@@ -51,6 +51,14 @@ export function useBlindboxIdeas(room: RoomInfo | null, profile: UserProfile | n
   const inputRef = useRef<HTMLInputElement>(null);
   const timersRef = useRef<ReturnType<typeof setTimeout>[]>([]);
 
+  useEffect(() => {
+    const timers = timersRef.current;
+    return () => {
+      timers.forEach(clearTimeout);
+      timers.length = 0;
+    };
+  }, []);
+
   const fetchIdeas = useCallback(async () => {
     if (!room || !profile) return;
     try {

src/hooks/useBlindboxRoom.ts

@@ -37,7 +37,11 @@ export function useBlindboxRoom(code: string) {
   const timersRef = useRef<ReturnType<typeof setTimeout>[]>([]);
 
   useEffect(() => {
-    return () => { timersRef.current.forEach(clearTimeout); };
+    const timers = timersRef.current;
+    return () => {
+      timers.forEach(clearTimeout);
+      timers.length = 0;
+    };
   }, []);
 
   useEffect(() => {