User profile deep copy API

src/user-profile/profile-routes.ts

@@ -1,9 +1,11 @@
 import express from 'express';
 import passport from 'passport';
 import { DB_NAME, getDatabaseClient } from '../db-utils';
-import { MongoUser } from '../shared/models/user';
+import { MongoUser, User } from '../shared/models/user';
 import { ObjectId } from 'bson';
 import { Word } from '../shared/models/word';
+import { MongoCategory } from '../shared/models/category';
+import { MongoShelf } from '../shared/models/shelf';
 
 export const userProfileRoutes = express.Router();
 
@@ -22,6 +24,64 @@ userProfileRoutes.get('/profile/', jwtAuthentication, async (request, response)
     return;
 });
 
+// Get Deep copy of data
+userProfileRoutes.get('/deep-copy/', jwtAuthentication, async (request, response) => {
+    const user: MongoUser = (request.user as any);
+    
+    const categoryCollection = getDatabaseClient().db(DB_NAME).collection<MongoCategory>('categories');
+    const shelfCollection = getDatabaseClient().db(DB_NAME).collection<MongoShelf>('shelves');
+    const wordCollection = getDatabaseClient().db(DB_NAME).collection<Word>('words');
+
+    const allDeepCategories: any = [];
+
+    const allCategories = await categoryCollection.find({
+        _id: { $in: user.categories.map(id => new ObjectId(id)) }
+    }).toArray();
+
+
+    try {
+        for (let i = 0; i < allCategories.length; i += 1) {
+            if (allCategories[i].shelves) {
+                const shelves: any = await shelfCollection.find({
+                    _id: { $in: allCategories[i].shelves.map(id => new ObjectId(id)) }
+                }).toArray();
+    
+                for (let j = 0; j < allCategories[i].shelves.length; j += 1) {
+                    if (shelves[j].words) {
+                        const words = await wordCollection.find({ 
+                            _id: { $in: shelves[j].words.map((word: any) => new ObjectId(word.word)) }
+                        }).toArray();
+    
+                        words.forEach((word, index) => {
+                            shelves[j].words[index].word = word;
+                        });
+    
+                    }
+                }
+    
+                allDeepCategories.push({
+                    ...allCategories[i],
+                    shelves,
+                });
+            }
+        }
+    } catch {
+        response.sendStatus(500);
+        return;
+    }
+
+    response.status(200);
+    response.json({
+        _id: user._id,
+        name: user.name,
+        email: user.email,
+        isVerified: user.isVerified,
+        categories: allDeepCategories
+    });
+
+    return;
+});
+
 // Add favourite word
 
 userProfileRoutes.post('/favourite-words/', jwtAuthentication, async (request, response) => {