Refactor DeviceUuidService and NativeServicesManager for simplified device handling

- Removed detailed device registration and heartbeat logic from NativeServicesManager.
- Simplified device UUID retrieval and validation in NativeServicesManager.
- Streamlined DeviceUuidService by removing unnecessary methods and logging.
- Updated WorkerDashboardView to directly interact with location service instead of background location service.
- Enhanced clock status synchronization with location service in WorkerDashboardView.

backend/server.js

@@ -12,13 +12,10 @@ import mysql from 'mysql2/promise'
 import dotenv from 'dotenv'
 import bcrypt from 'bcrypt'
 import jwt from 'jsonwebtoken'
-// --- FIX START ---
-// Import only the required functions from turf
+
 import { point, polygon, booleanPointInPolygon, pointToLineDistance } from '@turf/turf'
-// --- FIX END ---
 
 
-// Helper function to validate device for user with simplified workers table approach
 async function validateDeviceForUser(userId, deviceUuid, db) {
   try {
     // Step 1: Get user's current registered device UUID from workers table
@@ -116,7 +113,7 @@ async function logSecurityAlert(userId, alertType, alertData, db) {
 }
 
 // Helper function to register a new device for user (simplified for workers table)
-async function registerDeviceForUser(userId, deviceUuid, deviceInfo, db) {
+async function registerDeviceForUser(userId, deviceUuid, db) {
   try {
     // Check if device is already registered to another user
     const [otherUserRows] = await db.execute(
@@ -129,7 +126,6 @@ async function registerDeviceForUser(userId, deviceUuid, deviceInfo, db) {
       await logSecurityAlert(userId, 'device_registration_conflict', {
         attempted_device_uuid: deviceUuid,
         conflicting_user: otherUserRows[0].username,
-        device_info: deviceInfo,
         message: 'Attempted to register device already assigned to another user'
       }, db)
 
@@ -1005,49 +1001,6 @@ const geofence = polygon([
     }
   })
 
-  // Device Heartbeat Endpoint (Simplified - no timestamp tracking)
-  app.post('/api/device/heartbeat', authenticateJWT, async (req, res) => {
-    try {
-      const { userId, deviceUuid } = req.body
-
-      if (!userId || !deviceUuid) {
-        return res.status(400).json({ message: 'User ID and device UUID are required.' })
-      }
-
-      // Validate device registration (simplified check)
-      const [userRows] = await db.execute(
-        'SELECT device_uuid FROM workers WHERE id = ?',
-        [userId]
-      )
-
-      if (userRows.length === 0) {
-        return res.status(404).json({ message: 'User not found.' })
-      }
-
-      const registeredDeviceUuid = userRows[0].device_uuid
-
-      if (!registeredDeviceUuid) {
-        return res.status(400).json({ message: 'No device registered for this user.' })
-      }
-
-      if (registeredDeviceUuid !== deviceUuid) {
-        // Log security alert for heartbeat from unauthorized device
-        await logSecurityAlert(userId, 'unauthorized_heartbeat', {
-          registered_device_uuid: registeredDeviceUuid,
-          attempted_device_uuid: deviceUuid,
-          message: 'Heartbeat attempt from unauthorized device'
-        }, db)
-
-        return res.status(403).json({ message: 'Device not authorized for heartbeat.' })
-      }
-
-      // Device is valid - heartbeat accepted (no data storage needed)
-      res.json({ message: 'Heartbeat accepted' })
-    } catch (error) {
-      console.error('Device heartbeat error:', error)
-      res.status(500).json({ message: 'Database error during heartbeat validation.' })
-    }
-  })
 
   // Security Check Endpoint
   app.post('/api/security/check', authenticateJWT, async (req, res) => {