notifications chnages

src/controllers/tanksController.js

@@ -1714,40 +1714,63 @@ const emitWithTimestamp = (eventName, fcmTokens, motorId, waterLevel) => {
 //   }
 // };
 
-const sendNotification = async (fcmTokens, title, body) => {
-  if (!Array.isArray(fcmTokens) || fcmTokens.length === 0) {
-    console.error('No FCM tokens provided.');
-    return;
+const sendNotification = async (fcmIds, title, body) => {
+  try {
+    if (!fcmIds || fcmIds.length === 0) {
+      throw new Error('No FCM tokens provided.');
+    }
+
+    // Flatten the nested array of FCM tokens
+    const flatTokens = fcmIds.flat();
+
+    if (flatTokens.length === 0) {
+      throw new Error('Flattened FCM token list is empty.');
     }
 
     const message = {
-    tokens: fcmTokens, // Send to multiple tokens
       notification: {
-      title: title,
-      body: body,
+        title,
+        body,
       },
       data: {
-      target: 'tank_levels', // Any additional data you want to send
+        exampleKey: 'exampleValue', // Optional additional data
       },
     };
 
-  try {
-    const response = await admin.messaging().sendMulticast(message); // Send all messages at once
-    console.log('Notification sent successfully:', response);
-    // Check for failures
+    if (flatTokens.length === 1) {
+      // Single token case
+      const response = await admin.messaging().send({
+        ...message,
+        token: flatTokens[0],
+      });
+      console.log('Notification sent successfully to single token:', response);
+    } else {
+      // Multiple tokens case
+      const response = await admin.messaging().sendMulticast({
+        ...message,
+        tokens: flatTokens,
+      });
+
+      console.log('Notifications sent successfully:', response);
+
+      // Handle failures
       if (response.failureCount > 0) {
         response.responses.forEach((resp, idx) => {
           if (!resp.success) {
-          console.error(`Failed to send notification to token ${fcmTokens[idx]}:`, resp.error);
+            console.error(`Failed to send notification to token ${flatTokens[idx]}:`, resp.error);
           }
         });
       }
+    }
   } catch (error) {
     console.error('Error sending notifications:', error);
   }
 };
 
 
+
+
+
 // const sendPushNotification = async (registrationToken, title, body) => {
 //   const message = {
 //     notification: {
@@ -2095,7 +2118,7 @@ exports.motorAction = async (req, reply) => {
     // Get user FCM tokens
     const users = await User.find({ customerId });
     const fcmToken = users.map(user => user.fcmIds).filter(fcmIds => fcmIds);
-
+console.log(fcmToken)
     const receiverTank = await Tank.findOne({ customerId, tankName: req.body.to, tankLocation: req.body.to_type.toLowerCase() });
     console.log(receiverTank)
     const currentWaterLevel = parseInt(receiverTank.waterlevel, 10);