warning system

app/api/sensors/route.ts

@@ -1,9 +1,10 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { BedHardware, PinState, PinChange } from '@/services/BedHardware';
 import { SensorDataStorage, SensorDataPoint } from '@/services/SensorDataStorage';
+import { SensorConfig } from '@/types/sensor';
 
 // Complete sensor configuration with positions, pin mappings, and thresholds
-const SENSOR_CONFIG = [
+const SENSOR_CONFIG: SensorConfig[] = [
   // Head area
   { id: "head-1", x: 45, y: 15, zone: "head", label: "Head Left", pin: 2, baseNoise: 200, warningThreshold: 3000, alarmThreshold: 3500, warningDelayMs: 30000 },
   { id: "head-2", x: 55, y: 15, zone: "head", label: "Head Right", pin: 3, baseNoise: 150, warningThreshold: 3000, alarmThreshold: 3500, warningDelayMs: 30000 },
@@ -235,6 +236,25 @@ function updateMockSensorData() {
       const currentSensor = sensorData[sensor.id];
       const variation = (Math.random() - 0.5) * 200; // Larger variation for analog values
       const newValue = Math.max(0, Math.min(4095, currentSensor.value + variation));
+      const timestamp = Date.now();
+      
+      // Determine status based on thresholds
+      let status = 'normal';
+      let warningStartTime = currentSensor.warningStartTime;
+      
+      if (newValue >= sensor.alarmThreshold) {
+        status = 'alarm';
+        warningStartTime = undefined; // Clear warning timer for immediate alarm
+      } else if (newValue >= sensor.warningThreshold) {
+        status = 'warning';
+        if (!warningStartTime) {
+          warningStartTime = timestamp; // Start warning timer
+        } else if (timestamp - warningStartTime >= sensor.warningDelayMs) {
+          status = 'alarm'; // Escalate to alarm after delay
+        }
+      } else {
+        warningStartTime = undefined; // Clear warning timer
+      }
       
       sensorData[sensor.id] = {
         ...currentSensor,
@@ -248,8 +268,8 @@ function updateMockSensorData() {
             value: newValue,
           }
         ],
-        status: newValue >= sensor.alarmThreshold ? 'alarm' : 
-                newValue >= sensor.warningThreshold ? 'warning' : 'normal'
+        status,
+        warningStartTime
       };
     }
   });