Files
vf_react/src/contexts/NotificationContext.js
zdl 880c91e3de fix(notification): 修复内存泄漏和完善定时器管理
- 添加音频资源清理(组件卸载时释放 audioRef)
- 添加通知自动关闭定时器跟踪(Map 数据结构)
- removeNotification 自动清理对应定时器
- clearAllNotifications 批量清理所有定时器
- 增强事件去重机制(处理缺失 ID 的边界情况)
- 添加浏览器通知权限状态同步(监听 focus 事件)
- 移除废弃的通知分发策略注释代码

修复 React 严格模式下的内存泄漏问题,确保所有资源正确清理。

🔧 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-10 17:08:40 +08:00

949 lines
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// src/contexts/NotificationContext.js
/**
* 通知上下文 - 管理实时消息推送和通知显示
*
* 环境说明:
* - SOCKET_TYPE === 'REAL': 使用真实 Socket.IO 连接(生产环境),连接到 wss://valuefrontier.cn
* - SOCKET_TYPE === 'MOCK': 使用模拟 Socket 服务(开发环境),用于本地测试
*
* 环境切换:
* - 设置 REACT_APP_ENABLE_MOCK=true 或 REACT_APP_USE_MOCK_SOCKET=true 使用 MOCK 模式
* - 否则使用 REAL 模式连接生产环境
*/
import React, { createContext, useContext, useState, useEffect, useCallback, useRef } from 'react';
import { useToast, Box, HStack, Text, Button, CloseButton, VStack, Icon } from '@chakra-ui/react';
import { BellIcon } from '@chakra-ui/icons';
import { logger } from '../utils/logger';
import socket, { SOCKET_TYPE } from '../services/socket';
import notificationSound from '../assets/sounds/notification.wav';
import { browserNotificationService } from '../services/browserNotificationService';
import { notificationMetricsService } from '../services/notificationMetricsService';
import { notificationHistoryService } from '../services/notificationHistoryService';
import { PRIORITY_LEVELS, NOTIFICATION_CONFIG, NOTIFICATION_TYPES } from '../constants/notificationTypes';
import { usePermissionGuide, GUIDE_TYPES } from '../hooks/usePermissionGuide';
// 连接状态枚举
const CONNECTION_STATUS = {
CONNECTED: 'connected',
DISCONNECTED: 'disconnected',
RECONNECTING: 'reconnecting',
FAILED: 'failed',
RECONNECTED: 'reconnected', // 重连成功显示2秒后自动变回 CONNECTED
};
// 创建通知上下文
const NotificationContext = createContext();
// 自定义Hook
export const useNotification = () => {
const context = useContext(NotificationContext);
if (!context) {
throw new Error('useNotification must be used within a NotificationProvider');
}
return context;
};
// 通知提供者组件
export const NotificationProvider = ({ children }) => {
const toast = useToast();
const [notifications, setNotifications] = useState([]);
const [isConnected, setIsConnected] = useState(false);
const [soundEnabled, setSoundEnabled] = useState(true);
const [browserPermission, setBrowserPermission] = useState(browserNotificationService.getPermissionStatus());
const [hasRequestedPermission, setHasRequestedPermission] = useState(() => {
// 从 localStorage 读取是否已请求过权限
return localStorage.getItem('browser_notification_requested') === 'true';
});
const [connectionStatus, setConnectionStatus] = useState(CONNECTION_STATUS.CONNECTED);
const [reconnectAttempt, setReconnectAttempt] = useState(0);
const [maxReconnectAttempts, setMaxReconnectAttempts] = useState(Infinity);
const audioRef = useRef(null);
const reconnectedTimerRef = useRef(null); // 用于自动消失 RECONNECTED 状态
const processedEventIds = useRef(new Set()); // 用于Socket层去重记录已处理的事件ID
const MAX_PROCESSED_IDS = 1000; // 最多保留1000个ID避免内存泄漏
const notificationTimers = useRef(new Map()); // 跟踪所有通知的自动关闭定时器
// ⚡ 使用权限引导管理 Hook
const { shouldShowGuide, markGuideAsShown } = usePermissionGuide();
// 初始化音频
useEffect(() => {
try {
audioRef.current = new Audio(notificationSound);
audioRef.current.volume = 0.5;
logger.info('NotificationContext', 'Audio initialized');
} catch (error) {
logger.error('NotificationContext', 'Audio initialization failed', error);
}
// 清理函数:释放音频资源
return () => {
if (audioRef.current) {
audioRef.current.pause();
audioRef.current.src = '';
audioRef.current = null;
logger.info('NotificationContext', 'Audio resources cleaned up');
}
};
}, []);
/**
* 播放通知音效
*/
const playNotificationSound = useCallback(() => {
if (!soundEnabled || !audioRef.current) {
return;
}
try {
// 重置音频到开始位置
audioRef.current.currentTime = 0;
// 播放音频
audioRef.current.play().catch(error => {
logger.warn('NotificationContext', 'Failed to play notification sound', error);
});
} catch (error) {
logger.error('NotificationContext', 'playNotificationSound', error);
}
}, [soundEnabled]);
/**
* 移除通知
* @param {string} id - 通知ID
* @param {boolean} wasClicked - 是否是因为点击而关闭
*/
const removeNotification = useCallback((id, wasClicked = false) => {
logger.info('NotificationContext', 'Removing notification', { id, wasClicked });
// 清理对应的定时器
if (notificationTimers.current.has(id)) {
clearTimeout(notificationTimers.current.get(id));
notificationTimers.current.delete(id);
logger.info('NotificationContext', 'Cleared auto-close timer', { id });
}
// 监控埋点:追踪关闭(非点击的情况)
setNotifications(prev => {
const notification = prev.find(n => n.id === id);
if (notification && !wasClicked) {
notificationMetricsService.trackDismissed(notification);
}
return prev.filter(notif => notif.id !== id);
});
}, []);
/**
* 清空所有通知
*/
const clearAllNotifications = useCallback(() => {
logger.info('NotificationContext', 'Clearing all notifications');
// 清理所有定时器
notificationTimers.current.forEach((timerId, id) => {
clearTimeout(timerId);
logger.info('NotificationContext', 'Cleared timer during clear all', { id });
});
notificationTimers.current.clear();
setNotifications([]);
}, []);
/**
* 切换音效开关
*/
const toggleSound = useCallback(() => {
setSoundEnabled(prev => {
const newValue = !prev;
logger.info('NotificationContext', 'Sound toggled', { enabled: newValue });
return newValue;
});
}, []);
/**
* 请求浏览器通知权限
*/
const requestBrowserPermission = useCallback(async () => {
logger.info('NotificationContext', 'Requesting browser notification permission');
const permission = await browserNotificationService.requestPermission();
setBrowserPermission(permission);
// 记录已请求过权限
setHasRequestedPermission(true);
localStorage.setItem('browser_notification_requested', 'true');
// 根据权限结果显示 Toast 提示
if (permission === 'granted') {
toast({
title: '桌面通知已开启',
description: '您现在可以在后台接收重要通知',
status: 'success',
duration: 3000,
isClosable: true,
});
} else if (permission === 'denied') {
toast({
title: '桌面通知已关闭',
description: '您将继续在网页内收到通知',
status: 'info',
duration: 5000,
isClosable: true,
});
}
return permission;
}, [toast]);
/**
* ⚡ 显示权限引导(通用方法)
* @param {string} guideType - 引导类型
* @param {object} options - 引导选项
*/
const showPermissionGuide = useCallback((guideType, options = {}) => {
// 检查是否应该显示引导
if (!shouldShowGuide(guideType)) {
logger.debug('NotificationContext', 'Guide already shown, skipping', { guideType });
return;
}
// 检查权限状态:只在未授权时显示引导
if (browserPermission === 'granted') {
logger.debug('NotificationContext', 'Permission already granted, skipping guide', { guideType });
return;
}
// 默认选项
const {
title = '开启桌面通知',
description = '及时接收重要事件和股票提醒',
icon = true,
duration = 10000,
} = options;
// 显示引导 Toast
const toastId = `permission-guide-${guideType}`;
if (!toast.isActive(toastId)) {
toast({
id: toastId,
duration,
render: ({ onClose }) => (
<Box
p={4}
bg="blue.500"
color="white"
borderRadius="md"
boxShadow="lg"
maxW="400px"
>
<VStack spacing={3} align="stretch">
{icon && (
<HStack spacing={2}>
<Icon as={BellIcon} boxSize={5} />
<Text fontWeight="bold" fontSize="md">
{title}
</Text>
</HStack>
)}
<Text fontSize="sm" opacity={0.9}>
{description}
</Text>
<HStack spacing={2} justify="flex-end">
<Button
size="sm"
variant="ghost"
colorScheme="whiteAlpha"
onClick={() => {
onClose();
markGuideAsShown(guideType);
}}
>
稍后再说
</Button>
<Button
size="sm"
colorScheme="whiteAlpha"
bg="whiteAlpha.300"
_hover={{ bg: 'whiteAlpha.400' }}
onClick={async () => {
onClose();
markGuideAsShown(guideType);
await requestBrowserPermission();
}}
>
立即开启
</Button>
</HStack>
</VStack>
</Box>
),
});
logger.info('NotificationContext', 'Permission guide shown', { guideType });
}
}, [toast, shouldShowGuide, markGuideAsShown, browserPermission, requestBrowserPermission]);
/**
* ⚡ 显示欢迎引导(登录后)
*/
const showWelcomeGuide = useCallback(() => {
showPermissionGuide(GUIDE_TYPES.WELCOME, {
title: '🎉 欢迎使用价值前沿',
description: '开启桌面通知,第一时间接收重要投资事件和股票提醒',
duration: 12000,
});
}, [showPermissionGuide]);
/**
* ⚡ 显示社区功能引导
*/
const showCommunityGuide = useCallback(() => {
showPermissionGuide(GUIDE_TYPES.COMMUNITY, {
title: '关注感兴趣的事件',
description: '开启通知后,您关注的事件有新动态时会第一时间提醒您',
duration: 10000,
});
}, [showPermissionGuide]);
/**
* ⚡ 显示首次关注引导
*/
const showFirstFollowGuide = useCallback(() => {
showPermissionGuide(GUIDE_TYPES.FIRST_FOLLOW, {
title: '关注成功',
description: '开启桌面通知,事件有更新时我们会及时提醒您',
duration: 8000,
});
}, [showPermissionGuide]);
/**
* 发送浏览器通知
*/
const sendBrowserNotification = useCallback((notificationData) => {
console.log('[NotificationContext] 🔔 sendBrowserNotification 被调用');
console.log('[NotificationContext] 通知数据:', notificationData);
console.log('[NotificationContext] 当前浏览器权限:', browserPermission);
if (browserPermission !== 'granted') {
logger.warn('NotificationContext', 'Browser permission not granted');
console.warn('[NotificationContext] ❌ 浏览器权限未授予,无法发送通知');
return;
}
const { priority, title, content, link, type } = notificationData;
// 生成唯一 tag
const tag = `${type}_${Date.now()}`;
// 判断是否需要用户交互(紧急通知不自动关闭)
const requireInteraction = priority === PRIORITY_LEVELS.URGENT;
console.log('[NotificationContext] ✅ 准备发送浏览器通知:', {
title,
body: content,
tag,
requireInteraction,
link
});
// 发送浏览器通知
const notification = browserNotificationService.sendNotification({
title: title || '新通知',
body: content || '',
tag,
requireInteraction,
data: { link },
autoClose: requireInteraction ? 0 : 8000,
});
if (notification) {
console.log('[NotificationContext] ✅ 通知对象创建成功:', notification);
// 设置点击处理(聚焦窗口并跳转)
if (link) {
notification.onclick = () => {
console.log('[NotificationContext] 通知被点击,跳转到:', link);
window.focus();
// 使用 window.location 跳转(不需要 React Router
window.location.hash = link;
notification.close();
};
}
logger.info('NotificationContext', 'Browser notification sent', { title, tag });
} else {
console.error('[NotificationContext] ❌ 通知对象创建失败!');
}
}, [browserPermission]);
/**
* 事件数据适配器 - 将后端事件格式转换为前端通知格式
* @param {object} event - 后端事件对象
* @returns {object} - 前端通知对象
*/
const adaptEventToNotification = useCallback((event) => {
// 检测数据格式:如果已经是前端格式(包含 priority直接返回
if (event.priority || event.type === NOTIFICATION_TYPES.ANNOUNCEMENT || event.type === NOTIFICATION_TYPES.STOCK_ALERT) {
logger.debug('NotificationContext', 'Event is already in notification format', { id: event.id });
return event;
}
// 转换后端事件格式到前端通知格式
logger.debug('NotificationContext', 'Converting backend event to notification format', {
eventId: event.id,
eventType: event.event_type,
importance: event.importance
});
// 重要性映射S/A → urgent/important, B/C → normal
let priority = PRIORITY_LEVELS.NORMAL;
if (event.importance === 'S') {
priority = PRIORITY_LEVELS.URGENT;
} else if (event.importance === 'A') {
priority = PRIORITY_LEVELS.IMPORTANT;
}
// 获取自动关闭时长
const autoClose = NOTIFICATION_CONFIG.autoCloseDuration[priority];
// 构建通知对象
const notification = {
id: event.id || `event_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,
type: NOTIFICATION_TYPES.EVENT_ALERT, // 统一使用"事件动向"类型
priority: priority,
title: event.title || '新事件',
content: event.description || event.content || '',
publishTime: event.created_at ? new Date(event.created_at).getTime() : Date.now(),
pushTime: Date.now(),
timestamp: Date.now(),
isAIGenerated: event.is_ai_generated || false,
clickable: true,
link: `/event-detail/${event.id}`,
autoClose: autoClose,
extra: {
eventId: event.id,
eventType: event.event_type,
importance: event.importance,
status: event.status,
hotScore: event.hot_score,
viewCount: event.view_count,
relatedAvgChg: event.related_avg_chg,
relatedMaxChg: event.related_max_chg,
keywords: event.keywords || [],
},
};
logger.info('NotificationContext', 'Event converted to notification', {
eventId: event.id,
notificationId: notification.id,
priority: notification.priority,
});
return notification;
}, []);
/**
* 添加网页通知(内部方法)
*/
const addWebNotification = useCallback((newNotification) => {
// 监控埋点:追踪通知接收
notificationMetricsService.trackReceived(newNotification);
// 保存到历史记录
notificationHistoryService.saveNotification(newNotification);
// 新消息插入到数组开头,最多保留 maxHistory 条
setNotifications(prev => {
const updated = [newNotification, ...prev];
const maxNotifications = NOTIFICATION_CONFIG.maxHistory;
// 如果超过最大数量,移除最旧的(数组末尾)
if (updated.length > maxNotifications) {
const removed = updated.slice(maxNotifications);
removed.forEach(old => {
logger.info('NotificationContext', 'Auto-removing old notification', { id: old.id });
});
return updated.slice(0, maxNotifications);
}
return updated;
});
// 播放音效
playNotificationSound();
// 自动关闭
if (newNotification.autoClose && newNotification.autoClose > 0) {
const timerId = setTimeout(() => {
removeNotification(newNotification.id);
}, newNotification.autoClose);
// 将定时器ID保存到Map中
notificationTimers.current.set(newNotification.id, timerId);
logger.info('NotificationContext', 'Set auto-close timer', {
id: newNotification.id,
delay: newNotification.autoClose
});
}
}, [playNotificationSound, removeNotification]);
/**
* 添加通知到队列
* @param {object} notification - 通知对象
*/
const addNotification = useCallback(async (notification) => {
// ========== 显示层去重检查 ==========
const notificationId = notification.id || `notif_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
// 检查当前显示队列中是否已存在该通知
const isDuplicate = notifications.some(n => n.id === notificationId);
if (isDuplicate) {
logger.debug('NotificationContext', 'Duplicate notification ignored at display level', { id: notificationId });
return notificationId; // 返回ID但不显示
}
// ========== 显示层去重检查结束 ==========
// 根据优先级获取自动关闭时长
const priority = notification.priority || PRIORITY_LEVELS.NORMAL;
const defaultAutoClose = NOTIFICATION_CONFIG.autoCloseDuration[priority];
const newNotification = {
id: notificationId, // 使用预先生成的ID
type: notification.type || 'info',
severity: notification.severity || 'info',
title: notification.title || '通知',
message: notification.message || '',
timestamp: notification.timestamp || Date.now(),
priority: priority,
autoClose: notification.autoClose !== undefined ? notification.autoClose : defaultAutoClose,
...notification,
};
logger.info('NotificationContext', 'Adding notification', newNotification);
// ========== 增强权限请求策略 ==========
// 只要收到通知,就检查并提示用户授权
// 如果权限是default未授权自动请求
if (browserPermission === 'default' && !hasRequestedPermission) {
logger.info('NotificationContext', 'Auto-requesting browser permission on notification');
await requestBrowserPermission();
}
// 如果权限是denied已拒绝提供设置指引
else if (browserPermission === 'denied') {
const toastId = 'browser-permission-denied-guide';
if (!toast.isActive(toastId)) {
toast({
id: toastId,
duration: 12000,
isClosable: true,
position: 'top',
render: ({ onClose }) => (
<Box
p={4}
bg="orange.500"
color="white"
borderRadius="md"
boxShadow="lg"
maxW="400px"
>
<VStack spacing={3} align="stretch">
<HStack spacing={2}>
<Icon as={BellIcon} boxSize={5} />
<Text fontWeight="bold" fontSize="md">
浏览器通知已被拒绝
</Text>
</HStack>
<Text fontSize="sm" opacity={0.9}>
{newNotification.title}
</Text>
<Text fontSize="xs" opacity={0.8}>
💡 如需接收桌面通知请在浏览器设置中允许通知权限
</Text>
<VStack spacing={1} align="start" fontSize="xs" opacity={0.7}>
<Text>Chrome: 地址栏左侧 🔒 网站设置 通知</Text>
<Text>Safari: 偏好设置 网站 通知</Text>
<Text>Edge: 地址栏右侧 网站权限 通知</Text>
</VStack>
<Button
size="sm"
variant="ghost"
colorScheme="whiteAlpha"
onClick={onClose}
alignSelf="flex-end"
>
知道了
</Button>
</VStack>
</Box>
),
});
}
}
const isPageHidden = document.hidden; // 页面是否在后台
// ========== 通知分发策略(区分前后台) ==========
// 策略: 根据页面可见性智能分发通知
// - 页面在后台: 发送浏览器通知(系统级提醒)
// - 页面在前台: 发送网页通知(页面内 Toast
// 注: 不再区分优先级,统一使用前后台策略
if (isPageHidden) {
// 页面在后台:发送浏览器通知
logger.info('NotificationContext', 'Page hidden: sending browser notification');
sendBrowserNotification(newNotification);
} else {
// 页面在前台:发送网页通知
logger.info('NotificationContext', 'Page visible: sending web notification');
addWebNotification(newNotification);
}
return newNotification.id;
}, [notifications, toast, sendBrowserNotification, addWebNotification, browserPermission, hasRequestedPermission, requestBrowserPermission]);
// 连接到 Socket 服务
useEffect(() => {
logger.info('NotificationContext', 'Initializing socket connection...');
console.log(`%c[NotificationContext] Initializing socket (type: ${SOCKET_TYPE})`, 'color: #673AB7; font-weight: bold;');
// ✅ 第一步: 注册所有事件监听器
console.log('%c[NotificationContext] Step 1: Registering event listeners...', 'color: #673AB7;');
// 监听连接状态
socket.on('connect', () => {
const wasDisconnected = connectionStatus !== CONNECTION_STATUS.CONNECTED;
setIsConnected(true);
setReconnectAttempt(0);
logger.info('NotificationContext', 'Socket connected', { wasDisconnected });
console.log('%c[NotificationContext] ✅ Received connect event, updating state to connected', 'color: #4CAF50; font-weight: bold;');
// 如果之前断开过,显示 RECONNECTED 状态2秒后自动消失
if (wasDisconnected) {
setConnectionStatus(CONNECTION_STATUS.RECONNECTED);
logger.info('NotificationContext', 'Reconnected, will auto-dismiss in 2s');
// 清除之前的定时器
if (reconnectedTimerRef.current) {
clearTimeout(reconnectedTimerRef.current);
}
// 2秒后自动变回 CONNECTED
reconnectedTimerRef.current = setTimeout(() => {
setConnectionStatus(CONNECTION_STATUS.CONNECTED);
logger.info('NotificationContext', 'Auto-dismissed RECONNECTED status');
}, 2000);
} else {
setConnectionStatus(CONNECTION_STATUS.CONNECTED);
}
// 订阅事件推送
console.log('%c[NotificationContext] 🔔 订阅事件推送...', 'color: #FF9800; font-weight: bold;');
if (socket.subscribeToEvents) {
socket.subscribeToEvents({
eventType: 'all',
importance: 'all',
onSubscribed: (data) => {
console.log('%c[NotificationContext] ✅ 订阅成功!', 'color: #4CAF50; font-weight: bold;');
console.log('[NotificationContext] 订阅确认:', data);
logger.info('NotificationContext', 'Events subscribed', data);
},
// ⚠️ 不需要 onNewEvent 回调,因为 NotificationContext 已经通过 socket.on('new_event') 监听
});
} else {
console.error('[NotificationContext] ❌ socket.subscribeToEvents 方法不可用');
}
});
socket.on('disconnect', (reason) => {
setIsConnected(false);
setConnectionStatus(CONNECTION_STATUS.DISCONNECTED);
logger.warn('NotificationContext', 'Socket disconnected', { reason });
});
// 监听连接错误
socket.on('connect_error', (error) => {
logger.error('NotificationContext', 'Socket connect_error', error);
setConnectionStatus(CONNECTION_STATUS.RECONNECTING);
// 获取重连次数Real 和 Mock 都支持)
const attempts = socket.getReconnectAttempts?.() || 0;
setReconnectAttempt(attempts);
logger.info('NotificationContext', 'Reconnection attempt', { attempts, socketType: SOCKET_TYPE });
});
// 监听重连失败
socket.on('reconnect_failed', () => {
logger.error('NotificationContext', 'Socket reconnect_failed');
setConnectionStatus(CONNECTION_STATUS.FAILED);
toast({
title: '连接失败',
description: '无法连接到服务器,请检查网络连接',
status: 'error',
duration: null, // 不自动关闭
isClosable: true,
});
});
// 监听新事件推送(统一事件名)
socket.on('new_event', (data) => {
console.log('\n%c════════════════════════════════════════', 'color: #FF9800; font-weight: bold;');
console.log('%c[NotificationContext] 📨 收到 new_event 事件!', 'color: #FF9800; font-weight: bold;');
console.log('%c════════════════════════════════════════', 'color: #FF9800; font-weight: bold;');
console.log('[NotificationContext] 原始事件数据:', data);
console.log('[NotificationContext] 事件 ID:', data?.id);
console.log('[NotificationContext] 事件标题:', data?.title);
console.log('[NotificationContext] 事件类型:', data?.event_type || data?.type);
console.log('[NotificationContext] 事件重要性:', data?.importance);
logger.info('NotificationContext', 'Received new event', data);
// ========== Socket层去重检查 ==========
// 生成更健壮的事件ID
const eventId = data.id ||
`${data.type || 'unknown'}_${data.publishTime || Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
// 如果缺少原始ID记录警告
if (!data.id) {
logger.warn('NotificationContext', 'Event missing ID, generated fallback', {
eventId,
eventType: data.type,
title: data.title
});
}
if (processedEventIds.current.has(eventId)) {
logger.debug('NotificationContext', 'Duplicate event ignored at socket level', { eventId });
console.warn('[NotificationContext] ⚠️ 重复事件,已忽略:', eventId);
console.log('%c════════════════════════════════════════\n', 'color: #FF9800; font-weight: bold;');
return; // 重复事件,直接忽略
}
// 记录已处理的事件ID
processedEventIds.current.add(eventId);
console.log('[NotificationContext] ✓ 事件已记录,防止重复处理');
// 限制Set大小避免内存泄漏
if (processedEventIds.current.size > MAX_PROCESSED_IDS) {
const idsArray = Array.from(processedEventIds.current);
processedEventIds.current = new Set(idsArray.slice(-MAX_PROCESSED_IDS));
logger.debug('NotificationContext', 'Cleaned up old processed event IDs', {
kept: MAX_PROCESSED_IDS
});
}
// ========== Socket层去重检查结束 ==========
// 使用适配器转换事件格式
console.log('[NotificationContext] 正在转换事件格式...');
const notification = adaptEventToNotification(data);
console.log('[NotificationContext] 转换后的通知对象:', notification);
console.log('[NotificationContext] 准备添加通知到队列...');
addNotification(notification);
console.log('[NotificationContext] ✅ 通知已添加到队列');
console.log('%c════════════════════════════════════════\n', 'color: #FF9800; font-weight: bold;');
});
// 保留系统通知监听(兼容性)
socket.on('system_notification', (data) => {
logger.info('NotificationContext', 'Received system notification', data);
addNotification(data);
});
console.log('%c[NotificationContext] ✅ All event listeners registered', 'color: #4CAF50; font-weight: bold;');
// ✅ 第二步: 获取最大重连次数
const maxAttempts = socket.getMaxReconnectAttempts?.() || Infinity;
setMaxReconnectAttempts(maxAttempts);
logger.info('NotificationContext', 'Max reconnect attempts', { maxAttempts });
// ✅ 第三步: 调用 socket.connect()
console.log('%c[NotificationContext] Step 2: Calling socket.connect()...', 'color: #673AB7; font-weight: bold;');
socket.connect();
console.log('%c[NotificationContext] socket.connect() completed', 'color: #673AB7;');
// 清理函数
return () => {
logger.info('NotificationContext', 'Cleaning up socket connection');
// 清理 reconnected 状态定时器
if (reconnectedTimerRef.current) {
clearTimeout(reconnectedTimerRef.current);
reconnectedTimerRef.current = null;
}
// 清理所有通知的自动关闭定时器
notificationTimers.current.forEach((timerId, id) => {
clearTimeout(timerId);
logger.info('NotificationContext', 'Cleared timer during cleanup', { id });
});
notificationTimers.current.clear();
socket.off('connect');
socket.off('disconnect');
socket.off('connect_error');
socket.off('reconnect_failed');
socket.off('new_event');
socket.off('system_notification');
socket.disconnect();
};
}, []); // ✅ 空依赖数组,确保只执行一次,避免 React 严格模式重复执行
// ==================== 智能自动重试 ====================
/**
* 标签页聚焦时自动重试
*/
useEffect(() => {
const handleVisibilityChange = () => {
if (document.visibilityState === 'visible' && !isConnected && connectionStatus === CONNECTION_STATUS.FAILED) {
logger.info('NotificationContext', 'Tab refocused, attempting auto-reconnect');
if (SOCKET_TYPE === 'REAL') {
socket.reconnect?.();
} else {
socket.connect();
}
}
};
document.addEventListener('visibilitychange', handleVisibilityChange);
return () => {
document.removeEventListener('visibilitychange', handleVisibilityChange);
};
}, [isConnected, connectionStatus]);
/**
* 网络恢复时自动重试
*/
useEffect(() => {
const handleOnline = () => {
if (!isConnected && connectionStatus === CONNECTION_STATUS.FAILED) {
logger.info('NotificationContext', 'Network restored, attempting auto-reconnect');
toast({
title: '网络已恢复',
description: '正在重新连接...',
status: 'info',
duration: 2000,
isClosable: true,
});
if (SOCKET_TYPE === 'REAL') {
socket.reconnect?.();
} else {
socket.connect();
}
}
};
window.addEventListener('online', handleOnline);
return () => {
window.removeEventListener('online', handleOnline);
};
}, [isConnected, connectionStatus, toast]);
/**
* 追踪通知点击
* @param {string} id - 通知ID
*/
const trackNotificationClick = useCallback((id) => {
const notification = notifications.find(n => n.id === id);
if (notification) {
logger.info('NotificationContext', 'Notification clicked', { id });
// 监控埋点:追踪点击
notificationMetricsService.trackClicked(notification);
// 标记历史记录为已点击
notificationHistoryService.markAsClicked(id);
}
}, [notifications]);
/**
* 手动重试连接
*/
const retryConnection = useCallback(() => {
logger.info('NotificationContext', 'Manual reconnection triggered');
setConnectionStatus(CONNECTION_STATUS.RECONNECTING);
if (SOCKET_TYPE === 'REAL') {
socket.reconnect?.();
} else {
socket.connect();
}
}, []);
/**
* 同步浏览器通知权限状态
* 场景:
* 1. 用户在其他标签页授权后返回
* 2. 用户在浏览器设置中修改权限
* 3. 页面长时间打开后权限状态变化
*/
useEffect(() => {
const checkPermission = () => {
const current = browserNotificationService.getPermissionStatus();
if (current !== browserPermission) {
logger.info('NotificationContext', 'Browser permission changed', {
old: browserPermission,
new: current
});
setBrowserPermission(current);
// 如果权限被授予,显示成功提示
if (current === 'granted' && browserPermission !== 'granted') {
toast({
title: '桌面通知已开启',
description: '您现在可以在后台接收重要通知',
status: 'success',
duration: 3000,
isClosable: true,
});
}
}
};
// 页面聚焦时检查
window.addEventListener('focus', checkPermission);
// 定期检查(可选,用于捕获浏览器设置中的变化)
const intervalId = setInterval(checkPermission, 30000); // 每30秒检查一次
return () => {
window.removeEventListener('focus', checkPermission);
clearInterval(intervalId);
};
}, [browserPermission, toast]);
const value = {
notifications,
isConnected,
soundEnabled,
browserPermission,
connectionStatus,
reconnectAttempt,
maxReconnectAttempts,
addNotification,
removeNotification,
clearAllNotifications,
toggleSound,
requestBrowserPermission,
trackNotificationClick,
retryConnection,
// ⚡ 新增:权限引导方法
showWelcomeGuide,
showCommunityGuide,
showFirstFollowGuide,
};
return (
<NotificationContext.Provider value={value}>
{children}
</NotificationContext.Provider>
);
};
// 导出连接状态枚举供外部使用
export { CONNECTION_STATUS };
export default NotificationContext;