Playlist structure, enums. Add & filter & remove

playlists.swift

//
//  main.swift
//  Structures12Apr2023
//
//  Created by Tornike on 12/04/2023.
//

import Foundation

//Music Player
//
//Design a simple music player with an enum MusicGenre that has cases for different music genres (e.g., Pop, Rock, Jazz, Classical, etc.). Create a struct Song that contains properties such as title, artist, and genre (using MusicGenre). Implement a struct Playlist that has an array of Song objects and a name. Add methods to Playlist to add and remove songs, play a specific song, and filter the playlist by genre.

enum MusicGenre {
  case pop
  case rock
  case jazz
  case classical
  case hiphop
}

struct Song {
  let id = UUID()
  let title: String
  let artist: String
  let genre: MusicGenre

  init(title: String, artist: String, genre: MusicGenre) {
    self.title = title
    self.artist = artist
    self.genre = genre
  }
}

struct Playlist {
  var favoriteTracks: [Song] = []

  mutating func addTrackInPlaylist(song: Song) {
    favoriteTracks.append(song)
  }

  mutating func deleteTrackFromPlaylist(song: Song) {
    var temporaryArray: [Song] = []

    for track in favoriteTracks {
      if track.id != song.id {
        temporaryArray.append(track)
      }
    }

    favoriteTracks = temporaryArray
  }

  func filterWith(genre: MusicGenre) -> [Song] {
    var temporaryArray: [Song] = []

    for track in favoriteTracks {
      if track.genre == genre {
        temporaryArray.append(track)
      }
    }

    return temporaryArray
  }
}

var travelingPlaylist = Playlist()

let mfdoom = Song(title: "Doomsday", artist: "MF Doom", genre: .hiphop)
let pinkFloyd = Song(title: "The wall", artist: "Pink Floyd", genre: .rock)
let wutang = Song(title: "Protect yea neck", artist: "Wu tang", genre: .hiphop)
let jackson = Song(title: "Moondance", artist: "Michael Jackson", genre: .pop)
let marvin = Song(title: "Some love", artist: "Marvin guy", genre: .jazz)
let bethoven = Song(title: "Moonlight sonata", artist: "Bethoven", genre: .classical)

travelingPlaylist.addTrackInPlaylist(song: mfdoom)
travelingPlaylist.addTrackInPlaylist(song: pinkFloyd)
travelingPlaylist.addTrackInPlaylist(song: wutang)
travelingPlaylist.addTrackInPlaylist(song: jackson)
travelingPlaylist.addTrackInPlaylist(song: marvin)
travelingPlaylist.addTrackInPlaylist(song: bethoven)

func printTrackDetails(song: Song) {
  print("Artist: ", song.artist)
  print("Track: ", song.title)
  print("Genre: ", song.genre)
}

func printPlaylistMusic() {
  for track in travelingPlaylist.favoriteTracks {
    printTrackDetails(song: track)
  }
}


let filtredHipHop = travelingPlaylist.filterWith(genre: .classical)

print(filtredHipHop)