/// <summary>
/// Will ask the user for the name of the new playlist
/// Will send to diffrent method to get all the tracks.
/// Will add all the tracks to the new playlist
/// </summary>
public static void AddPlaylist()
{
Console.WriteLine("\nEnter the name of the playlist!");
string playlistName = Console.ReadLine();
List <int> trackList = new List <int>();
trackList = AddTracks();
Playlist playlist = new Playlist();
Track track = new Track();
using (var context = new MusicContext())
{
int id = context.Playlists.OrderBy(x => x.PlaylistId).Last().PlaylistId + 1;
playlist.Name = playlistName;
playlist.PlaylistId = id;
context.Playlists.Add(playlist);
context.SaveChanges();
foreach (var item in trackList)
{
track = context.Tracks.SingleOrDefault(x => x.TrackId == item);
if (track != null)
{
playlist.PlaylistId = id;
context.Database.ExecuteSqlRaw("insert into music.playlist_track values({0}, {1})", playlist.PlaylistId, track.TrackId);
context.SaveChanges();
}
}
Console.WriteLine("They have been successfully added");
//context.SaveChanges();
}
}
/// <summary>
/// Will ask for the name or id of the playlist.
/// Will ask if the user wants to remove or add tracks.
/// Will send to diffrent method
/// </summary>
public static void ModifyPlaylist()
{
Console.WriteLine("\nEnter the information about the playlist\nyou would like to modify (PlaylistId or Name)");
string playlistInfo = Console.ReadLine();
bool addOrRemove = false;
string value = "";
using (var context = new MusicContext())
{
Playlist playlist = context.Playlists.SingleOrDefault(x => x.Name == playlistInfo || x.PlaylistId == Int32.Parse(playlistInfo));
if (playlist == null)
{
Console.WriteLine("\nCould not find playlist");
addOrRemove = true;
}
}
//checking if the user wnats to add or remove
while (!addOrRemove)
{
Console.WriteLine("\nWould you like to add or remove track?(add / remove)");
value = Console.ReadLine().ToLower();
if (value == "add" || value == "remove")
{
addOrRemove = true;
}
else
{
Console.WriteLine("\nWrong input");
}
}
//sending it to a new method to handle it
switch (value)
{
case "add":
ModifyAdd(playlistInfo);
break;
case "remove":
ModifyRemove(playlistInfo);
break;
default:
break;
}
}
/// <summary>
/// Will ask the user for tracks to add and put it into a list,
/// then it will return the list
/// </summary>
/// <returns>List of trackids</returns>
private static List <int> AddTracks()
{
Console.WriteLine("\nWould you like to see a list of the tracks? (y/n)");
if (Console.ReadKey().Key == ConsoleKey.Y)
{
using (var context = new MusicContext())
{
List <Track> track = context.Tracks.ToList();
foreach (var item in track)
{
Console.WriteLine("Name: " + item.Name + ", Id: " + item.TrackId + "\n");
}
}
}
List <int> trackList = new List <int>();
Console.WriteLine("\nEnter trackIDs that you would like to have in your playlist (-1 to continue)");
Console.WriteLine("If a trackID is invalid it will just be ignored\n");
int trackID = 0;
bool moreTracks = true;
while (moreTracks)
{
bool isValid = true;
string Input = Console.ReadLine();
if (Input == "-1")
{
moreTracks = false;
}
foreach (char c in Input)
{
bool isNumber = Char.IsDigit(c);
if (!isNumber)
{
isValid = false;
}
}
if (isValid)
{
trackID = Int32.Parse(Input);
trackList.Add(trackID);
}
}
return(trackList);
}
/// <summary>
/// Will run the method "AddTracks" which returns a list of trackids
/// and then addd them to the database.
/// </summary>
/// <param name="playlistInfo">Information about the playlist (Could be name or id)</param>
private static void ModifyAdd(string playlistInfo)
{
List <int> trackList = new List <int>();
trackList = AddTracks();
//Checks if the playlistInfo is the name or the id.
int playlistID;
bool isNumber = Int32.TryParse(playlistInfo, out playlistID);
Track track = new Track();
Playlist playlist = new Playlist();
using (var context = new MusicContext())
{
if (isNumber)
{
playlist = context.Playlists.SingleOrDefault(
x => x.PlaylistId == playlistID);
}
else
{
playlist = context.Playlists.SingleOrDefault(
x => x.Name == playlistInfo);
}
if (playlist != null)
{
foreach (var item in trackList)
{
track = context.Tracks.SingleOrDefault(x => x.TrackId == item);
if (track != null && playlist != null)
{
context.Database.ExecuteSqlRaw("insert into music.playlist_track values({0}, {1})", playlist.PlaylistId, track.TrackId);
context.SaveChanges();
}
}
Console.WriteLine("They have been successfully added");
}
else
{
Console.WriteLine("\nCould not find playlist\n");
}
}
}
/// <summary>
/// Will ask for the name or id of the playlist
/// Will then remove all the items in the playlist_track
/// And then remove the playlist
/// </summary>
public static void RemovePlaylist()
{
Console.WriteLine("\nEnter the playlist you would like to remove (PlaylistId or Name)");
string PlaylistName = Console.ReadLine();
int playlistID;
bool isNumber = Int32.TryParse(PlaylistName, out playlistID);
Playlist playlist = new Playlist();
PlaylistTrack playListTrack = new PlaylistTrack();
using (var context = new MusicContext())
{
if (isNumber)
{
playlist = context.Playlists.SingleOrDefault(
x => x.PlaylistId == playlistID);
}
else
{
playlist = context.Playlists.SingleOrDefault(
x => x.Name == PlaylistName);
}
if (playlist != null)
{
playListTrack = context.PlaylistTracks.Where(x => x.PlaylistId == playlist.PlaylistId).FirstOrDefault();
if (playListTrack != null)
{
context.Database.ExecuteSqlRaw("delete from music.playlist_track where PlaylistId={0}", playListTrack.PlaylistId);
context.SaveChanges();
}
context.Playlists.Remove(playlist);
context.SaveChanges();
Console.WriteLine("They have been successfully deleted");
}
else
{
Console.WriteLine("Could not find the playlist.\n");
}
}
}
/// <summary>
/// Will ask the user for trackids to remove form the list
/// </summary>
/// <param name="playlistInfo">Information about the playlist (Could be name or id)</param>
private static void ModifyRemove(string playlistInfo)
{
bool moreTracks = true;
List <int> trackList = new List <int>();
while (moreTracks)
{
Console.WriteLine("\nEnter the TrackId that you would like to remove \n(-1 to continue without removing more)");
int trackID;
bool isValid = true;
string Input = Console.ReadLine();
if (Input == "-1")
{
moreTracks = false;
}
foreach (char c in Input)
{
if (!Char.IsDigit(c))
{
isValid = false;
}
}
if (isValid)
{
trackID = Int32.Parse(Input);
trackList.Add(trackID);
}
}
//Checks if the playlistInfo is the name or the id.
int playlistID;
bool isNumber = Int32.TryParse(playlistInfo, out playlistID);
Playlist playlist = new Playlist();
PlaylistTrack playListTrack = new PlaylistTrack();
using (var context = new MusicContext())
{
if (isNumber)
{
playlist = context.Playlists.SingleOrDefault(
x => x.PlaylistId == playlistID);
}
else
{
playlist = context.Playlists.SingleOrDefault(
x => x.Name == playlistInfo);
}
foreach (var item in trackList)
{
playListTrack = context.PlaylistTracks.Where(x => x.PlaylistId == playlist.PlaylistId &&
x.TrackId == item).SingleOrDefault();
if (playListTrack != null)
{
context.Database.ExecuteSqlRaw("delete from music.playlist_track where TrackId={0}", playListTrack.TrackId);
context.SaveChanges();
}
}
Console.WriteLine("They have been successfully removed");
}
}
