Rewrote repository and added user model

.env

 APP_PORT=8000
 PG_HOST=localhost
-MONGO_CLIENT_URL=mongodb://localhost/TsoyDanilMusicDB
+MONGO_CLIENT_URL=mongodb://localhost/TsoyDanilMusicDB
\ No newline at end of file
+ENV_SALT=10
\ No newline at end of file

package.json

@@ -11,10 +11,13 @@
   "license": "ISC",
   "dependencies": {
     "@types/cors": "^2.8.13",
+    "@types/jsonwebtoken": "^9.0.1",
     "@types/shortid": "^0.0.29",
+    "bcrypt": "^5.1.0",
     "cors": "^2.8.5",
     "dotenv": "^16.0.3",
     "express": "^4.18.2",
+    "jsonwebtoken": "^9.0.0",
     "mongodb": "^5.1.0",
     "mongoose": "^7.0.1",
     "multer": "^1.4.5-lts.1",
@@ -26,6 +29,7 @@
     "uuid": "^9.0.0"
   },
   "devDependencies": {
+    "@types/bcrypt": "^5.0.0",
     "@types/dotenv": "^8.2.0",
     "@types/express": "^4.17.17",
     "@types/mongodb": "^4.0.7",

src/interfaces/IUser.ts

+import {Document} from "mongoose"
+
+export default interface IUser extends Document {
+    _id: string
+    username: string
+    password: string
+    token: string
+}
\ No newline at end of file

src/interfaces/IUserDto.ts

+import IUser from "./IUser";
+
+export default interface IUserDto {
+    username: IUser['username']
+    password: IUser['password']
+}
+

src/models/User.ts

+import mongoose, { Schema } from "mongoose";
+import bcrypt from "bcrypt";
+import IUser from "../interfaces/IUser";
+import jwt from 'jsonwebtoken'
+import { v4 } from "uuid";
+
+const UserSchema: Schema = new Schema<IUser>({
+    username: {
+        type: String,
+        required: true,
+        unique: true
+    },
+    password: {
+        type: String,
+        required: true
+    },
+    token: {
+        type: String,
+        required: true
+    }
+},{versionKey: false})
+
+UserSchema.pre('save', async function(next){
+    if (!this.isModified('password')) return next()
+    const salt = await bcrypt.genSalt()
+    const hash = await bcrypt.hash(this.password, salt)
+    this.password = hash
+    next()
+})
+
+UserSchema.set('toJSON', {transform(doc, ret, options) {
+    delete ret.password
+    return ret
+}})
+
+UserSchema.methods.checkPassword = async function(password: string) {
+    return await bcrypt.compare(password, this.password);
+}
+
+UserSchema.methods.generateToken = async function() {
+    this.token = v4()
+};
+
+export const User = mongoose.model<IUser>('User', UserSchema)
\ No newline at end of file

src/repository/mongooseDB.ts

 import dotenv from 'dotenv';
+import { Request } from "express";
 import mongoose, { Mongoose } from 'mongoose';
+import { EStatuses } from '../enum/EStatuses';
+import IAlbum from '../interfaces/IAlbum';
+import IAlbumDto from '../interfaces/IAlbumDto';
+import IArtist from '../interfaces/IArtist';
+import IArtistDto from '../interfaces/IArtistDto';
+import IResponse from '../interfaces/IResponse';
+import ITrack from '../interfaces/ITrack';
+import ITrackDto from '../interfaces/ITrackDto';
+import IUser from '../interfaces/IUser';
+import IUserDto from '../interfaces/IUserDto';
+import { Album } from '../models/Album';
+import { Artist } from '../models/Artist';
+import { Track } from '../models/Track';
+import { User } from '../models/User';
 dotenv.config();
 
 export class MongooseDB {
@@ -19,6 +34,170 @@ export class MongooseDB {
             console.error('Connected error MongooseDB:', error);
         }
     }
+
+    public getAlbums = async(req: Request): Promise<IResponse<IAlbum[] | IAlbum | null>> => {
+        try {
+            let data
+            if (req.query.artist){
+                data = await Album.find({artist: req.query.artist}).populate('artist')
+            } else if (req.params.id){
+                data = await Album.findById(req.params.id).populate('artist')
+            } else{
+                data = await Album.find().populate('artist')
+            }
+            if (data === null || data === undefined) throw new Error('No album found')
+            const response: IResponse<IAlbum[] | IAlbum | null> = {
+                status: EStatuses.SUCCESS,
+                result: data,
+                message: 'Albums found'
+            }
+            return response
+        } catch(err: unknown){
+            const error = err as Error 
+            const response: IResponse<null> = {
+                status: EStatuses.FAILURE,
+                result: null,
+                message: error.message
+            }
+            return response
+        }
+    }
+
+    public addAlbum = async(albumDto: IAlbumDto): Promise<IResponse<IAlbum | null>> => {
+        try {
+            if (albumDto.title.trim() === '' || !albumDto.artist || !albumDto.releaseYear || !albumDto.coverImage) throw new Error('All fields should exist')
+            const album = new Album(albumDto)
+            const data = await album.save()
+            const response: IResponse<IAlbum> = {
+                status: EStatuses.SUCCESS,
+                result: data,
+                message: 'Album added'
+            }
+            return response
+        } catch(err: unknown){
+            const error = err as Error 
+            const response: IResponse<null> = {
+                status: EStatuses.FAILURE,
+                result: null,
+                message: error.message
+            }
+            return response
+        }
+    }
+
+    public getArtists = async(): Promise<IResponse<IArtist[] | null>> => {
+        try{
+            const data = await Artist.find()
+            const response: IResponse<IArtist[]> = {
+                status: EStatuses.SUCCESS,
+                result: data,
+                message: 'Artists found'
+            }
+            return response
+        } catch (err: unknown){
+            const error = err as Error 
+            const response: IResponse<null> = {
+                status: EStatuses.FAILURE,
+                result: null,
+                message: error.message
+            }
+            return response
+        }
+    }
+
+    public addArtist = async(artistDto: IArtistDto): Promise<IResponse<IArtist | null>> => {
+        try{
+            if (artistDto.name.trim() === '' || !artistDto.photo || artistDto.information.trim() === '') throw new Error ('All fields should exist')
+            const artist = new Artist(artistDto)
+            const data = await artist.save()
+            const response: IResponse<IArtist> = {
+                status: EStatuses.SUCCESS,
+                result: data,
+                message: 'Artist added'
+            }
+            return response
+        } catch (err: unknown){
+            const error = err as Error 
+            const response: IResponse<null> = {
+                status: EStatuses.FAILURE,
+                result: null,
+                message: error.message
+            }
+            return response
+        }
+    }
+
+    public getTracks = async(req: Request): Promise<IResponse<ITrack[] | null>> => {
+        try{
+            let data
+            if (req.query.album){
+                data = await Track.find({album: req.query.album}).populate('album')
+            } else if (req.query.artist){
+                data = await Track.find({album: await Album.find({artist: req.query.artist})}).populate('album')
+            } else{
+                data = await Track.find().populate('album')
+            }
+            const response: IResponse<ITrack[] | null> = {
+                status: EStatuses.SUCCESS,
+                result: data,
+                message: 'Tracks found'
+            }
+            return response
+        } catch(err: unknown){
+            const error = err as Error 
+            const response: IResponse<null> = {
+                status: EStatuses.FAILURE,
+                result: null,
+                message: error.message
+            }
+            return response
+        }
+    }
+
+    public addTrack = async(trackDto: ITrackDto): Promise<IResponse<ITrack | null>> => {
+        try {
+            if (trackDto.title.trim() === '' || !trackDto.album || !trackDto.length || trackDto.length <= 0) throw new Error('All fields should exist and have valid value')
+            const album = new Track(trackDto)
+            const data = await album.save()
+            const response: IResponse<ITrack> = {
+                status: EStatuses.SUCCESS,
+                result: data,
+                message: 'Album added'
+            }
+            return response
+        } catch(err: unknown){
+            const error = err as Error 
+            const response: IResponse<null> = {
+                status: EStatuses.FAILURE,
+                result: null,
+                message: error.message
+            }
+            return response
+        }
+    }
+
+    public addUser = async (userDto: IUserDto): Promise<IResponse<IUser | null>> => {
+        try {
+            const user = new User(userDto)
+            const data = await user.save()
+            const response: IResponse<IUser> = {
+                status: EStatuses.SUCCESS,
+                result: data,
+                message: 'User added'
+            }
+            return response
+        } catch(err: unknown){
+            const error = err as Error 
+            const response: IResponse<null> = {
+                status: EStatuses.FAILURE,
+                result: null,
+                message: error.message
+            }
+            return response
+        }
+    }
+
+    
 }
 
 export const mongooseDB = new MongooseDB()
\ No newline at end of file

src/services/albumsService.ts

-import { EStatuses } from "../enum/EStatuses";
 import IAlbum from "../interfaces/IAlbum";
 import IResponse from "../interfaces/IResponse";
 import IAlbumDto from "../interfaces/IAlbumDto";
-import { Album } from "../models/Album";
 import { Request } from "express";
+import { mongooseDB } from "../repository/mongooseDB";
 
 export class AlbumsService {
 
     public getAlbums = async(req: Request): Promise<IResponse<IAlbum[] | IAlbum | null>> => {
-        try {
-            let data
-            if (req.query.artist){
-                data = await Album.find({artist: req.query.artist}).populate('artist')
-            } else if (req.params.id){
-                data = await Album.findById(req.params.id).populate('artist')
-            } else{
-                data = await Album.find().populate('artist')
-            }
-            if (data === null || data === undefined) throw new Error('No album found')
-            const response: IResponse<IAlbum[] | IAlbum | null> = {
-                status: EStatuses.SUCCESS,
-                result: data,
-                message: 'Albums found'
-            }
-            return response
-        } catch(err: unknown){
-            const error = err as Error 
-            const response: IResponse<null> = {
-                status: EStatuses.FAILURE,
-                result: null,
-                message: error.message
-            }
-            return response
-        }
+        return await mongooseDB.getAlbums(req)
     }
 
     public addAlbum = async(albumDto: IAlbumDto): Promise<IResponse<IAlbum | null>> => {
-        try {
-            if (albumDto.title.trim() === '' || !albumDto.artist || !albumDto.releaseYear || !albumDto.coverImage) throw new Error('All fields should exist')
-            const album = new Album(albumDto)
-            const data = await album.save()
-            const response: IResponse<IAlbum> = {
-                status: EStatuses.SUCCESS,
-                result: data,
-                message: 'Album added'
-            }
-            return response
-        } catch(err: unknown){
-            const error = err as Error 
-            const response: IResponse<null> = {
-                status: EStatuses.FAILURE,
-                result: null,
-                message: error.message
-            }
-            return response
-        }
+        return await mongooseDB.addAlbum(albumDto)
     }
 }
 

src/services/artistsService.ts

-import { EStatuses } from "../enum/EStatuses";
 import IArtist from "../interfaces/IArtist";
 import IArtistDto from "../interfaces/IArtistDto";
 import IResponse from "../interfaces/IResponse";
-import { Artist } from "../models/Artist";
+import { mongooseDB } from "../repository/mongooseDB";
 
 
 export class ArtistsService {
     public getArtists = async(): Promise<IResponse<IArtist[] | null>> => {
-        try{
-            const data = await Artist.find()
-            const response: IResponse<IArtist[]> = {
-                status: EStatuses.SUCCESS,
-                result: data,
-                message: 'Artists found'
-            }
-            return response
-        } catch (err: unknown){
-            const error = err as Error 
-            const response: IResponse<null> = {
-                status: EStatuses.FAILURE,
-                result: null,
-                message: error.message
-            }
-            return response
-        }
+        return await mongooseDB.getArtists()
     }
 
     public addArtist = async(artistDto: IArtistDto): Promise<IResponse<IArtist | null>> => {
-        try{
-            if (artistDto.name.trim() === '' || !artistDto.photo || artistDto.information.trim() === '') throw new Error ('All fields should exist')
-            const artist = new Artist(artistDto)
-            const data = await artist.save()
-            const response: IResponse<IArtist> = {
-                status: EStatuses.SUCCESS,
-                result: data,
-                message: 'Artist added'
-            }
-            return response
-        } catch (err: unknown){
-            const error = err as Error 
-            const response: IResponse<null> = {
-                status: EStatuses.FAILURE,
-                result: null,
-                message: error.message
-            }
-            return response
-        }
+        return await mongooseDB.addArtist(artistDto)
     }
 }
 

src/services/tracksService.ts

 import { Request } from "express";
-import { EStatuses } from "../enum/EStatuses";
 import IResponse from "../interfaces/IResponse";
 import ITrack from "../interfaces/ITrack";
 import ITrackDto from "../interfaces/ITrackDto";
-import { Album } from "../models/Album";
-import { Track } from "../models/Track";
+import { mongooseDB } from "../repository/mongooseDB";
 
 
 export class TracksService {
 
     public getTracks = async(req: Request): Promise<IResponse<ITrack[] | null>> => {
-        try{
-            let data
-            if (req.query.album){
-                data = await Track.find({album: req.query.album}).populate('album')
-            } else if (req.query.artist){
-                data = await Track.find({album: await Album.find({artist: req.query.artist})}).populate('album')
-            } else{
-                data = await Track.find().populate('album')
-            }
-            const response: IResponse<ITrack[] | null> = {
-                status: EStatuses.SUCCESS,
-                result: data,
-                message: 'Tracks found'
-            }
-            return response
-        } catch(err: unknown){
-            const error = err as Error 
-            const response: IResponse<null> = {
-                status: EStatuses.FAILURE,
-                result: null,
-                message: error.message
-            }
-            return response
-        }
+        return await mongooseDB.getTracks(req)
     }
 
     public addTrack = async(trackDto: ITrackDto): Promise<IResponse<ITrack | null>> => {
-        try {
-            if (trackDto.title.trim() === '' || !trackDto.album || !trackDto.length || trackDto.length <= 0) throw new Error('All fields should exist and have valid value')
-            const album = new Track(trackDto)
-            const data = await album.save()
-            const response: IResponse<ITrack> = {
-                status: EStatuses.SUCCESS,
-                result: data,
-                message: 'Album added'
-            }
-            return response
-        } catch(err: unknown){
-            const error = err as Error 
-            const response: IResponse<null> = {
-                status: EStatuses.FAILURE,
-                result: null,
-                message: error.message
-            }
-            return response
-        }
+        return await mongooseDB.addTrack(trackDto)
     }
 }