feat: 添加后台任务管理器，支持喝水和站立提醒功能

utils/health.ts

@@ -460,13 +460,13 @@ export async function fetchTodayHRV(): Promise<number | null> {
 // 获取最近几小时内的实时HRV数据
 export async function fetchRecentHRV(hoursBack: number = 2): Promise<number | null> {
   console.log(`开始获取最近${hoursBack}小时内的HRV数据...`);
-  
+
   const now = new Date();
   const options = {
     startDate: dayjs(now).subtract(hoursBack, 'hour').toDate().toISOString(),
     endDate: now.toISOString()
   };
-  
+
   return fetchHeartRateVariability(options);
 }
 
@@ -543,18 +543,18 @@ export async function saveWaterIntakeToHealthKit(amount: number, recordedAt?: st
       endDate: recordedAt ? new Date(recordedAt).toISOString() : new Date().toISOString(),
     };
 
-    AppleHealthKit.saveWater(waterOptions, (error: Object, result: boolean) => {
+    AppleHealthKit.saveWater(waterOptions, (error: Object, result) => {
       if (error) {
         console.error('添加饮水记录到 HealthKit 失败:', error);
         resolve(false);
         return;
       }
-      
-      console.log('成功添加饮水记录到 HealthKit:', { 
-        originalAmount: amount, 
-        convertedAmount: amount / 1000, 
-        recordedAt, 
-        result 
+
+      console.log('成功添加饮水记录到 HealthKit:', {
+        originalAmount: amount,
+        convertedAmount: amount / 1000,
+        recordedAt,
+        result
       });
       resolve(true);
     });
@@ -570,7 +570,7 @@ export async function getWaterIntakeFromHealthKit(options: HealthDataOptions): P
         resolve([]);
         return;
       }
-      
+
       console.log('从 HealthKit 获取饮水记录:', results);
       resolve(results || []);
     });
@@ -584,7 +584,31 @@ export async function deleteWaterIntakeFromHealthKit(recordId: string, recordedA
   // 这是一个占位函数，实际实现可能需要更复杂的逻辑
   console.log('注意: HealthKit 通常不支持直接删除单条饮水记录');
   console.log('记录信息:', { recordId, recordedAt });
-  
+
   // 返回 true 表示"成功"（但实际上可能没有真正删除）
   return Promise.resolve(true);
 }
+
+// 获取当前小时的站立状态
+export async function getCurrentHourStandStatus(): Promise<{ hasStood: boolean; standHours: number; standHoursGoal: number }> {
+  try {
+    const currentHour = new Date().getHours();
+    console.log(`检查当前小时 ${currentHour} 的站立状态...`);
+
+    // 获取今日健康数据
+    const todayHealthData = await fetchTodayHealthData();
+
+    return {
+      hasStood: todayHealthData.standHours > currentHour - 1, // 如果站立小时数大于当前小时-1，说明当前小时已站立
+      standHours: todayHealthData.standHours,
+      standHoursGoal: todayHealthData.standHoursGoal
+    };
+  } catch (error) {
+    console.error('获取当前小时站立状态失败:', error);
+    return {
+      hasStood: true, // 默认认为已站立，避免过度提醒
+      standHours: 0,
+      standHoursGoal: 12
+    };
+  }
+}

utils/notificationHelpers.ts

@@ -1,5 +1,6 @@
 import * as Notifications from 'expo-notifications';
 import { NotificationData, notificationService } from '../services/notifications';
+import { getNotificationEnabled } from './userPreferences';
 
 /**
  * 构建 coach 页面的深度链接
@@ -917,6 +918,102 @@ export class GeneralNotificationHelpers {
   }
 }
 
+/**
+ * 站立提醒通知助手
+ */
+export class StandReminderHelpers {
+  /**
+   * 检查站立状态并发送提醒通知
+   */
+  static async checkStandStatusAndNotify(userName: string): Promise<boolean> {
+    try {
+      console.log('检查站立状态并发送提醒通知...');
+
+      // 动态导入健康工具，避免循环依赖
+      const { getCurrentHourStandStatus } = await import('@/utils/health');
+      
+      // 获取当前小时站立状态
+      const standStatus = await getCurrentHourStandStatus();
+      
+      console.log('当前站立状态:', standStatus);
+      
+      // 如果已经站立过，不需要提醒
+      if (standStatus.hasStood) {
+        console.log('用户当前小时已经站立，无需提醒');
+        return false;
+      }
+
+      // 检查时间范围（工作时间内提醒，避免深夜或清晨打扰）
+      const currentHour = new Date().getHours();
+      if (currentHour < 9 || currentHour >= 21) {
+        console.log(`当前时间${currentHour}点，不在站立提醒时间范围内`);
+        return false;
+      }
+
+      // 检查是否启用了通知
+      if (!(await getNotificationEnabled())) {
+        console.log('用户未启用通知功能，跳过站立提醒');
+        return false;
+      }
+
+      // 生成提醒消息
+      const reminderMessage = this.generateStandReminderMessage(userName, standStatus.standHours, standStatus.standHoursGoal);
+
+      // 发送站立提醒通知
+      await notificationService.sendImmediateNotification({
+        title: '站立提醒',
+        body: reminderMessage,
+        data: { 
+          type: 'stand_reminder',
+          currentStandHours: standStatus.standHours,
+          standHoursGoal: standStatus.standHoursGoal,
+          timestamp: Date.now()
+        },
+        sound: true,
+        priority: 'normal',
+      });
+
+      console.log('站立提醒通知发送成功');
+      return true;
+
+    } catch (error) {
+      console.error('检查站立状态并发送提醒失败:', error);
+      return false;
+    }
+  }
+
+  /**
+   * 生成站立提醒消息
+   */
+  private static generateStandReminderMessage(userName: string, currentStandHours: number, goalHours: number): string {
+    const currentHour = new Date().getHours();
+    const progress = Math.round((currentStandHours / goalHours) * 100);
+    
+    const messages = [
+      `${userName}，该站起来活动一下了！当前已完成${progress}%的站立目标`,
+      `${userName}，久坐伤身，起来走走吧～已站立${currentStandHours}/${goalHours}小时`,
+      `${userName}，站立一会儿对健康有益，目前进度${currentStandHours}/${goalHours}小时`,
+      `${userName}，记得起身活动哦！今日站立进度${progress}%`
+    ];
+
+    // 根据时间选择不同的消息
+    const messageIndex = currentHour % messages.length;
+    return messages[messageIndex];
+  }
+
+  /**
+   * 取消所有站立提醒通知
+   */
+  static async cancelStandReminders(): Promise<void> {
+    try {
+      await GeneralNotificationHelpers.cancelNotificationsByType('stand_reminder');
+      console.log('已取消所有站立提醒通知');
+    } catch (error) {
+      console.error('取消站立提醒通知失败:', error);
+    }
+  }
+}
+
 /**
  * 通知模板
  */