dynamic graph

app/api/sensors/history/route.ts

@@ -0,0 +1,38 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { SensorDataStorage } from '@/services/SensorDataStorage';
+
+export async function GET(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const sensorId = searchParams.get('sensorId');
+    const timespan = parseInt(searchParams.get('timespan') || '86400000'); // Default 24 hours in ms
+    
+    if (!sensorId) {
+      return NextResponse.json({
+        success: false,
+        error: 'sensorId parameter is required'
+      }, { status: 400 });
+    }
+
+    const sensorDataStorage = SensorDataStorage.getInstance();
+    const sensorData = await sensorDataStorage.getDataForSensor(sensorId, timespan);
+    
+    const timeSeriesData = sensorDataStorage.generateTimeSeriesData(sensorData, timespan);
+
+    return NextResponse.json({
+      success: true,
+      sensorId,
+      timespan,
+      dataPoints: sensorData.length,
+      data: timeSeriesData,
+      timestamp: new Date().toISOString()
+    });
+
+  } catch (error) {
+    console.error('Sensor history API error:', error);
+    return NextResponse.json({
+      success: false,
+      error: 'Failed to get sensor history data'
+    }, { status: 500 });
+  }
+}