changes

src/controllers/departmentController.js

@@ -805,7 +805,19 @@ const getLocationsByCityAndZone = async (city, zone) => {
     ]);
 
     console.log("Query Result:", result); // Debugging output
-    return result.length ? result[0] : null; // Return a single object instead of an array
+
+    if (result.length) {
+      let locations = [...new Set(result[0].locations)]; // Remove duplicates
+
+      // If zone is "ALL", include "ALL" in the locations list
+      if (zone.trim().toUpperCase() === "ALL") {
+        locations.unshift("ALL");
+      }
+
+      return { city, locations };
+    } else {
+      return { city, locations: zone.trim().toUpperCase() === "ALL" ? ["ALL"] : [] }; // Return empty if no data
+    }
   } catch (err) {
     console.error(err);
     throw new Error("Error fetching locations.");
@@ -834,6 +846,7 @@ exports.getZonebasedLocations = async (req, reply) => {
 };
 
 
+
  const getLocationsByZone = async (zone) => {
   try {
     const result = await City.aggregate([