department names by city

src/controllers/departmentController.js

@@ -1078,4 +1078,48 @@ exports.getZonebasedLocations = async (req, reply) => {
       reply.send({ error: err.message });
     }
   };
-  
+  
+
+  // Helper function to fetch department names by city
+  const getDepartmentNamesByCity = async (city) => {
+    try {
+      const trimmedCity = city.trim();
+      
+      // Allow for extra whitespace before or after the city value in the database
+      const query = {
+        city: { $regex: `^\\s*${trimmedCity}\\s*$`, $options: "i" }
+      };
+      console.log("MongoDB Query:", JSON.stringify(query, null, 2));
+      
+      const result = await Deparments.find(query)
+        .select("departmentName -_id")
+        .lean();
+      
+      return result.map(doc => doc.departmentName);
+    } catch (error) {
+      console.error("Error fetching departments by city:", error);
+      throw new Error("Error fetching departments by city.");
+    }
+  };
+  
+
+// API route handler
+exports.getDepartmentsByCity = async (req, reply) => {
+  try {
+    const { city } = req.params;
+    if (!city || city.trim() === "") {
+      return reply.status(400).send({ message: "City is required." });
+    }
+    
+    const departmentNames = await getDepartmentNamesByCity(city);
+    
+    if (departmentNames.length === 0) {
+      return reply.status(404).send({ message: "No departments found for the specified city." });
+    }
+    
+    reply.send({ status_code: 200, data: departmentNames });
+  } catch (error) {
+    console.error("API Error:", error);
+    reply.status(500).send({ message: error.message });
+  }
+};

src/routes/departmentRoute.js

@@ -597,5 +597,24 @@ module.exports = function (fastify, opts, next) {
               },
               handler: departmentController.getCitiesByOfficeName,
             });
+
+            fastify.route({
+              method: "GET",
+              url: "/api/departmentNameList/:city",
+              schema: {
+                tags: ["Department"],
+                description: "Get a list of department names for a given city",
+                summary: "Department names by city",
+                params: {
+                  type: "object",
+                  properties: {
+                    city: { type: "string" }
+                  },
+                  required: ["city"],
+                },
+              },
+              handler: departmentController.getDepartmentsByCity,
+            });
+            
     next();
     };