//Method for returning artists from the users playlists
public List <string> GetArtists(Playlists playlists, string token)
{
List <string> Artists = new List <string>();
foreach (var playlist in playlists.Items)
{
string url = string.Format("https://api.spotify.com/v1/users/" + playlist.Owner.UserId + "/playlists/" + playlist.Id + "/tracks");
Tracks tracks = SpotifyService <Tracks>(url, token);
if (tracks == null)
{
continue;
}
foreach (var track in tracks.Items)
{
foreach (var artist in track.FullTrack.Artists)
{
Artists.Add(artist.Name);
}
}
}
//Return the list of artists
return(Artists);
}
//method for getting User playlist information from this the users favourite artists can be found
public Playlists GetPlaylists(string UserId, string token)
{
string url = string.Format("https://api.spotify.com/v1/users/{0}/playlists", UserId); //URL to access the spotify api
Playlists playlists = SpotifyService <Playlists>(url, token);
return(playlists);
}
//This is an alternative method which gets the latest artist release if it is within the pas month
//This method returns much more results however it requires a lot of calls to the spotify API
//due to spotifys rate limiting on api calls this is a very time consuming but it returns more detailed results
//The method can be changed to get more parameters from the JSON data as per GetNewReleases() above
public List <string> GetReleasesFromAlubms(Playlists playlists, string token)
{
//Make a list of new releases
List <string> Releases = new List <string>();
foreach (var playlist in playlists.Items)
{
//Get all tracks from the playlists
string url = string.Format("https://api.spotify.com/v1/users/" + playlist.Owner.UserId + "/playlists/" + playlist.Id + "/tracks");
Tracks tracks = SpotifyService <Tracks>(url, token);
if (tracks == null)
{
continue;
}
foreach (var track in tracks.Items)
{
string music = track.FullTrack.Name;
string artists = "";
//From the tracks get the artist, the artist will then be checked for album releases
foreach (var artist in track.FullTrack.Artists)
{
//Current date to use as a comparator
DateTime dt1 = DateTime.Now;
string url1 = string.Format("https://api.spotify.com/v1/artists/" + artist.Id + "/albums?market=ES&include_groups=album,single,appears_on,compilation&limit=2");
Releases releases = SpotifyService <Releases>(url1, token);
if (releases == null)
{
continue;
}
foreach (var album in releases.Albums)
{
string date = album.Date;
//To deal with apotify returning only the year release
if (date.Length < 9)
{
continue;
}
DateTime dt2 = DateTime.ParseExact(date, "yyyy-MM-dd", System.Globalization.CultureInfo.InvariantCulture);
//Get number of days between 2 dates if it is less than 30 days it can be considered a new release
var result = (dt1 - dt2).Days;
if (result < 30)
{
Releases.Add(album.Name);
}
}
}
}
}
return(Releases);
}
//Redirect from authorisation call
public ActionResult Auth(string access_token, string token_type, string expires_in, string state)
{
if (string.IsNullOrEmpty(access_token))
{
return(View());
}
//Create a new service for making spotify api calls
SpotifyAPI spotifyService = new SpotifyAPI();
//Get user authentication and return name to client display
UserProfile spotifyUser = spotifyService.GetUserProfile(access_token); //pass in the authentication token provided by spotify
ViewBag.Users = spotifyUser.DisplayName;
//Get user playlists ids
Playlists playlists = spotifyService.GetPlaylists(spotifyUser.UserId, access_token);
ViewBag.Playlists = playlists;
//Get all tracks from user
List <string> Artists = spotifyService.GetArtists(playlists, access_token);
ViewBag.Artists = Artists;
//Make a call to a method which returns new releases in the form of 3 seperate variables
var(l1, l2, l3) = spotifyService.GetNewReleases(Artists, access_token);
ViewBag.Url = l1;
ViewBag.Album = l2;
ViewBag.Artwork = l3;
//Ticketmaster service for checking if any of the users artists have any upcoming concert dates
TicketmasterAPI ticketmasterService = new TicketmasterAPI();
//Return url link to event and event name
var(url, name) = ticketmasterService.GetConcerts(Artists);
ViewBag.Url1 = url;
ViewBag.Name = name;
//Return the app html file, Auth.cshtml
return(View());
}
