Feature/backend/delete entire collection

backend/Controllers/collection.controller.js

@@ -42,7 +42,7 @@ export const saveProject = async (req, res) => {
     if(existingProject) return res.status(400).json("Project already exists in this collection");
 
     // Case 1: No collection exists → save in 'default-collection' and save the project 
-    if (existingCollection.length === 0) {
+    if (!existingCollection) {
       const newCollection = new Collection(
         { 
           userID, 
@@ -58,7 +58,6 @@ export const saveProject = async (req, res) => {
     }
 
     // Case 2: Try to update empty project_id - in case of manula creation,we had project_is null, so here we try to update that id for that document, to use this document and avoid redudancy in the collection
-
     const emptySlot = await Collection.findOneAndUpdate(
       { userID, collection_name, project_id: null },
       { $set: { project_id } },
@@ -114,3 +113,23 @@ export const deleteProject = async(req,res)=>{
   }
 }
 
+//delete an entire collection and all existing projects in it
+export const deleteCollection = async(req,res)=>{
+  try{
+    const userID =req.user;
+    const {collection_name} = req.body;
+    const existingUser = await  User.findById(userID);
+    if(!existingUser) return res.status(404).json("User not found");
+
+    await Collection.deleteMany(
+      {
+        userID:userID,
+        collection_name:collection_name
+      }
+    );
+    return res.status(200).json("Collection deleted successfully");
+  }catch(err){
+    return res.status(400).json(err);
+  }
+}
+

backend/Routes/api/collections.routes.js

@@ -1,10 +1,11 @@
 import express from 'express';
-import { createNewCollection, deleteProject, saveProject} from '../../Controllers/collection.controller.js';
+import { createNewCollection, deleteCollection, deleteProject, saveProject} from '../../Controllers/collection.controller.js';
 import { authenticateUser } from '../../Middlewares/auth.middleware.js';
 const collectionRoutes = express.Router();
 collectionRoutes.post("/create-collection", authenticateUser, createNewCollection);
 collectionRoutes.post("/:id",  authenticateUser, saveProject);
 collectionRoutes.delete("/saved-projects", authenticateUser, deleteProject);
+collectionRoutes.delete("/", authenticateUser, deleteCollection);
 
 
 export default collectionRoutes;

backend/Routes/index.js

@@ -6,6 +6,7 @@ import projectRoutes from './api/project.routes.js';
 import notificationRoutes from './api/notification.routes.js';
 import subscriberRoutes from './api/subscriber.routes.js';
 import collectionRoutes from './api/collections.routes.js';
+
 import collaborationRoutes from './api/collaboration.routes.js';
 import { authMiddleware, generalMiddleware } from '../Middlewares/rateLimit/index.js';
 

backend/package.json

@@ -42,5 +42,7 @@
     "nodemon": "^3.1.10"
   },
   "description": ""
+
   }
+
 }