user managment

backend/services/db.js

@@ -1,5 +1,6 @@
 const MongoClient = require("mongodb").MongoClient;
-const connectionString = "mongodb://db:27017";
+const config = require("../config.js");
+const connectionString = config.db.connectionString;
 const client = new MongoClient(connectionString);
 
 let db;
@@ -8,7 +9,7 @@ const connectDb = async () => {
   if (db) return db;
   try {
     const conn = await client.connect();
-    db = conn.db("jucundus");
+    db = conn.db(config.db.dbName);
     return db;
   } catch(e) {
     console.error(e);

backend/services/userDb.js

@@ -0,0 +1,91 @@
+const { ObjectId } = require('mongodb');
+const connectDb = require("./db");
+const crypto = require('crypto');
+
+const UserDb = class
+{
+    constructor()
+    {
+    }
+
+    static async init() {
+        const userDb = new UserDb();
+        await userDb.getCollection();
+        return userDb;
+    }
+
+    async getCollection()
+    {
+        const db = await connectDb();
+        if (!db) {
+            throw new Error('Database not connected');
+        }
+        this.collection = db.collection("Users");
+    }
+
+    // CRUD
+    async get(id)
+    {
+        let result = await this.collection.findOne({_id: new ObjectId(id)});
+        return result;
+    }
+
+    async post(newDocument)
+    {
+        delete newDocument._id;
+        let result = await this.collection.insertOne(newDocument);
+        return result;
+    }
+
+    async put(id, data)
+    {        
+        delete data._id;
+        let result = await this.collection.updateOne({_id: new ObjectId(id)}, {$set: data});
+        return result;
+    }
+
+    async remove(id)
+    {
+        let result = await this.collection.deleteOne({_id: new ObjectId(id)});   
+        return result;
+    }
+
+    // Functions
+
+    async getAll()
+    {
+        let result = await this.collection.find({}).toArray();
+        return result;
+    }
+
+    async getByUsername(username)
+    {
+        let result = await this.collection.findOne({username: username});
+        return result;
+    }
+    async getByEmail(email)
+    {
+        let result = await this.collection.findOne({email: email});
+        return result;
+    }
+
+    async creatFirstUserifEmpty( ){
+        const allUsers = await this.getAll();
+        if(allUsers.length == 0){
+            console.log("Creating first user");
+            let salt = crypto.randomBytes(16).toString('hex');
+            let user = {                
+                username: "admin",
+                hashed_password: crypto.pbkdf2Sync('admin', salt, 310000, 32, 'sha256').toString('hex'),
+                salt: salt,
+                email: "admin@admin.com",                
+                isAdmin: true,
+                isAgent: false,
+
+            }
+            this.post(user);
+        }
+    }
+}
+
+module.exports = { UserDb };