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api/middleware/schedule/taskQueue.js

@@ -1054,6 +1054,113 @@ class TaskQueue {
             console.warn(`[任务队列] 通知客户端任务状态变更失败:`, error.message);
         }
     }
+
+    /**
+     * 获取任务状态摘要（用于同步到客户端）
+     * @param {string} sn_code - 设备SN码
+     * @returns {Promise<object>} 任务状态摘要
+     */
+    async getTaskStatusSummary(sn_code) {
+        try {
+            const queue = this.deviceQueues.get(sn_code);
+            const status = this.deviceStatus.get(sn_code) || { 
+                isRunning: false, 
+                currentTask: null, 
+                runningCount: 0 
+            };
+
+            // 获取当前执行的任务
+            let currentTask = null;
+            if (status.currentTask) {
+                const taskData = status.currentTask;
+                currentTask = {
+                    taskId: taskData.id,
+                    taskName: taskData.taskName || taskData.task_name || taskData.taskType || taskData.task_type || '未知任务',
+                    taskType: taskData.taskType || taskData.task_type,
+                    status: 'running',
+                    progress: taskData.progress || 0,
+                    currentStep: taskData.currentStep || taskData.current_step || '',
+                    startTime: taskData.startTime || taskData.start_time || taskData.created_time
+                };
+            }
+
+            // 获取待执行任务列表（最多10个）
+            const pendingTasks = [];
+            if (queue && queue.size() > 0) {
+                const queueArray = queue.toArray();
+                for (const task of queueArray.slice(0, 10)) {
+                    const taskData = task;
+                    pendingTasks.push({
+                        taskId: taskData.id,
+                        taskName: taskData.taskName || taskData.task_name || taskData.taskType || taskData.task_type || '未知任务',
+                        taskType: taskData.taskType || taskData.task_type,
+                        status: 'pending',
+                        scheduledTime: taskData.scheduledTime || taskData.scheduled_time || taskData.created_time,
+                        priority: taskData.priority || 0
+                    });
+                }
+            }
+
+            // 计算下次任务执行时间（队列中第一个任务的计划时间）
+            let nextTaskTime = null;
+            if (queue && queue.size() > 0) {
+                const firstTask = queue.peek();
+                if (firstTask && (firstTask.scheduledTime || firstTask.scheduled_time)) {
+                    nextTaskTime = firstTask.scheduledTime || firstTask.scheduled_time;
+                }
+            }
+
+            return {
+                sn_code,
+                currentTask,
+                pendingTasks,
+                nextTaskTime,
+                pendingCount: queue ? queue.size() : 0,
+                mqttTopic: `task_status_${sn_code}`,
+                timestamp: new Date().toISOString()
+            };
+        } catch (error) {
+            console.error(`[任务队列] 获取任务状态摘要失败:`, error, { sn_code });
+            return {
+                sn_code,
+                currentTask: null,
+                pendingTasks: [],
+                nextTaskTime: null,
+                pendingCount: 0,
+                mqttTopic: `task_status_${sn_code}`,
+                timestamp: new Date().toISOString()
+            };
+        }
+    }
+
+    /**
+     * 向客户端发送任务状态摘要
+     * @param {string} sn_code - 设备SN码
+     */
+    async sendTaskStatusSummary(sn_code) {
+        try {
+            const mqttClient = await this.getMqttClient();
+            if (!mqttClient) {
+                return; // MQTT客户端不可用，静默失败
+            }
+
+            const summary = await this.getTaskStatusSummary(sn_code);
+            
+            // 通过MQTT发布任务状态摘要
+            // 主题格式: task_status_{sn_code}
+            const topic = `task_status_${sn_code}`;
+            const message = JSON.stringify({
+                action: 'task_status_summary',
+                data: summary,
+                timestamp: new Date().toISOString()
+            });
+
+            await mqttClient.publish(topic, message);
+        } catch (error) {
+            // 通知失败不影响任务执行，只记录日志
+            console.warn(`[任务队列] 发送任务状态摘要失败:`, error.message);
+        }
+    }
 }
 
 // 导出单例