/// <summary>
/// Retrieves top artists (10 most popular) from Nokia Music API.
/// </summary>
public void GetTopArtists()
{
if (!initialized)
{
return;
}
client.GetTopArtists((ListResponse <Artist> response) =>
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
// Use results
if (response != null && response.Result != null && response.Result.Count > 0)
{
App.ViewModel.TopArtists.Clear();
// Insert a place holder for title text
App.ViewModel.TopArtists.Add(new ArtistModel()
{
Name = "TitlePlaceholderwho's hot",
ItemHeight = "110",
ItemWidth = "450"
});
foreach (Artist a in response.Result)
{
App.ViewModel.TopArtists.Add(new ArtistModel()
{
Name = a.Name,
Country = CountryCodes.CountryNameFromTwoLetter(a.Country),
Genres = a.Genres[0].Name,
Thumb100Uri = a.Thumb100Uri,
Thumb200Uri = a.Thumb200Uri,
Thumb320Uri = a.Thumb320Uri,
Id = a.Id,
ItemWidth = "205",
ItemHeight = "205"
});
}
}
if (response != null && response.Error != null)
{
ShowNokiaMusicApiError();
}
HideProgressIndicator("GetTopArtists()");
});
});
ShowProgressIndicator("GetTopArtists()");
}
/// <summary>
/// Retrieves similar artists for a selected artist from Nokia Music API.
/// </summary>
/// <param name="id">Id of the artist.</param>
public void GetSimilarArtists(string id)
{
if (!initialized)
{
return;
}
App.ViewModel.SimilarForArtist.Clear();
App.ViewModel.NoSimilarVisibility = Visibility.Visible;
client.GetSimilarArtists((ListResponse <Artist> response) =>
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
// Use results
if (response != null && response.Result != null && response.Result.Count > 0)
{
foreach (Artist a in response.Result)
{
App.ViewModel.SimilarForArtist.Add(new ArtistModel()
{
Name = a.Name,
Country = CountryCodes.CountryNameFromTwoLetter(a.Country),
Genres = a.Genres[0].Name,
Thumb100Uri = a.Thumb100Uri,
Thumb200Uri = a.Thumb200Uri,
Thumb320Uri = a.Thumb320Uri,
Id = a.Id,
ItemWidth = "205",
ItemHeight = "205"
});
}
}
if (App.ViewModel.SimilarForArtist.Count() > 0)
{
App.ViewModel.NoSimilarVisibility = Visibility.Collapsed;
}
if (response != null && response.Error != null)
{
ShowNokiaMusicApiError();
}
HideProgressIndicator("GetSimilarArtists()");
});
}, id);
}
/// <summary>
/// Retrieves top artists (10 most popular) from MixRadio API.
/// </summary>
public async void GetTopArtists()
{
if (!initialized)
{
return;
}
ShowProgressIndicator("GetTopArtists()");
ListResponse <Artist> response = await client.GetTopArtistsAsync();
if (response != null && response.Result != null && response.Result.Count > 0)
{
App.ViewModel.TopArtists.Clear();
// Insert a place holder for title text
App.ViewModel.TopArtists.Add(new ArtistModel()
{
Name = "TitlePlaceholderwho's hot",
ItemHeight = "110",
ItemWidth = "450"
});
foreach (Artist a in response.Result)
{
App.ViewModel.TopArtists.Add(new ArtistModel()
{
Name = a.Name,
Country = CountryCodes.CountryNameFromTwoLetter(a.Country),
Genres = a.Genres[0].Name,
Thumb100Uri = a.Thumb100Uri,
Thumb200Uri = a.Thumb200Uri,
Thumb320Uri = a.Thumb320Uri,
Id = a.Id,
ItemWidth = "205",
ItemHeight = "205"
});
}
}
if (response != null && response.Error != null)
{
ShowMixRadioApiError();
}
HideProgressIndicator("GetTopArtists()");
}
/// <summary>
/// Retrieves information (id, genre, thumbnail, etc.) for local artists.
/// This method initiates a chain of requests, which
/// 1. requests artist information for each of the local artists
/// one after another.
/// 2. Initiates recommendations searching.
/// </summary>
public void GetArtistInfoForLocalAudio()
{
if (!initialized || localAudioResponses >= App.ViewModel.LocalAudio.Count)
{
return;
}
ArtistModel m = App.ViewModel.LocalAudio[localAudioResponses];
client.SearchArtists((ListResponse <Artist> response) =>
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
// Use results
if (response != null && response.Result != null && response.Result.Count > 0)
{
m.Id = response.Result[0].Id;
m.Country = CountryCodes.CountryNameFromTwoLetter(response.Result[0].Country);
m.Genres = response.Result[0].Genres[0].Name;
int itemHeight = Int32.Parse(m.ItemHeight);
m.Thumb100Uri = response.Result[0].Thumb100Uri;
m.Thumb200Uri = response.Result[0].Thumb200Uri;
m.Thumb320Uri = response.Result[0].Thumb320Uri;
localArtists.Add(response.Result[0]);
}
if (response != null && response.Error != null)
{
ShowNokiaMusicApiError();
}
HideProgressIndicator("GetArtistInfoForLocalAudio()");
localAudioResponses++;
GetArtistInfoForLocalAudio();
if (localAudioResponses == App.ViewModel.LocalAudio.Count)
{
// Request recommendations after receiving info for all local artists
FetchRecommendations();
}
});
}, m.Name);
ShowProgressIndicator("GetArtistInfoForLocalAudio()");
}
/// <summary>
/// Retrieves information (id, genre, thumbnail, etc.) for local artists.
/// This method initiates a chain of requests, which
/// 1. requests artist information for each of the local artists
/// one after another.
/// 2. Initiates recommendations searching.
/// </summary>
public async void GetArtistInfoForLocalAudio()
{
if (!initialized || localAudioResponses >= App.ViewModel.LocalAudio.Count)
{
return;
}
ArtistModel m = App.ViewModel.LocalAudio[localAudioResponses];
ShowProgressIndicator("GetArtistInfoForLocalAudio()");
ListResponse <Artist> response = await client.SearchArtistsAsync(m.Name);
if (response != null && response.Result != null && response.Result.Count > 0)
{
m.Id = response.Result[0].Id;
m.Country = CountryCodes.CountryNameFromTwoLetter(response.Result[0].Country);
if (response.Result[0].Genres != null)
{
m.Genres = response.Result[0].Genres[0].Name;
}
int itemHeight = Int32.Parse(m.ItemHeight);
m.Thumb100Uri = response.Result[0].Thumb100Uri;
m.Thumb200Uri = response.Result[0].Thumb200Uri;
m.Thumb320Uri = response.Result[0].Thumb320Uri;
localArtists.Add(response.Result[0]);
}
if (response != null && response.Error != null)
{
ShowMixRadioApiError();
}
HideProgressIndicator("GetArtistInfoForLocalAudio()");
localAudioResponses++;
GetArtistInfoForLocalAudio();
if (localAudioResponses == App.ViewModel.LocalAudio.Count)
{
// Request recommendations after receiving info for all local artists
await FetchRecommendations();
}
}
/// <summary>
/// Retrieves similar artists for a selected artist from MixRadio API.
/// </summary>
/// <param name="id">Id of the artist.</param>
public async void GetSimilarArtists(string id)
{
if (!initialized)
{
return;
}
App.ViewModel.SimilarForArtist.Clear();
App.ViewModel.NoSimilarVisibility = Visibility.Visible;
ListResponse <Artist> response = await client.GetSimilarArtistsAsync(id);
if (response != null && response.Result != null && response.Result.Count > 0)
{
foreach (Artist a in response.Result)
{
App.ViewModel.SimilarForArtist.Add(new ArtistModel()
{
Name = a.Name,
Country = CountryCodes.CountryNameFromTwoLetter(a.Country),
Genres = a.Genres[0].Name,
Thumb100Uri = a.Thumb100Uri,
Thumb200Uri = a.Thumb200Uri,
Thumb320Uri = a.Thumb320Uri,
Id = a.Id,
ItemWidth = "205",
ItemHeight = "205"
});
}
}
if (App.ViewModel.SimilarForArtist.Count() > 0)
{
App.ViewModel.NoSimilarVisibility = Visibility.Collapsed;
}
if (response != null && response.Error != null)
{
ShowMixRadioApiError();
}
HideProgressIndicator("GetSimilarArtists()");
}
/// <summary>
/// Retrieves top artists of a selected genre from MixRadio API.
/// </summary>
/// <param name="id">Id of the genre.</param>
public async void GetTopArtistsForGenre(string id)
{
if (!initialized)
{
return;
}
ShowProgressIndicator("GetTopArtistsForGenre()");
ListResponse <Artist> response = await client.GetTopArtistsForGenreAsync(id);
if (response != null && response.Result != null && response.Result.Count > 0)
{
App.ViewModel.TopArtistsForGenre.Clear();
foreach (Artist a in response.Result)
{
App.ViewModel.TopArtistsForGenre.Add(new ArtistModel()
{
Name = a.Name,
Country = CountryCodes.CountryNameFromTwoLetter(a.Country),
Genres = a.Genres[0].Name,
Thumb100Uri = a.Thumb100Uri,
Thumb200Uri = a.Thumb200Uri,
Thumb320Uri = a.Thumb320Uri,
Id = a.Id,
ItemWidth = "205",
ItemHeight = "205"
});
}
}
if (response != null && response.Error != null)
{
ShowMixRadioApiError();
}
HideProgressIndicator("GetTopArtistsForGenre()");
}
/// <summary>
/// Builds the recommended artists lists.
/// This method initiates a chain of requests, which requests similar
/// artists information for each of the local artists one after another.
/// </summary>
private async Task FetchRecommendations()
{
if (!initialized || localArtists.Count <= recommendResponses)
{
if (initialized && App.ViewModel.Recommendations.Count <= 0)
{
App.ViewModel.NoRecommendedVisibility = Visibility.Visible;
}
else
{
App.ViewModel.NoRecommendedVisibility = Visibility.Collapsed;
}
// limit the number of recommended artists to 10
if (localArtists.Count == recommendResponses)
{
int i = App.ViewModel.Recommendations.Count - 1;
while (i > 20)
{
App.ViewModel.Recommendations.RemoveAt(i);
i--;
}
}
return;
}
ShowProgressIndicator("FetchRecommendations()");
ListResponse <Artist> response = await client.GetSimilarArtistsAsync(localArtists[recommendResponses].Id);
if (response != null && response.Result != null && response.Result.Count > 0)
{
foreach (Artist a in response.Result)
{
bool handled = false;
// Don't recommend artists already stored in device.
if (App.ViewModel.IsLocalArtist(a.Name))
{
handled = true;
}
// Check if the artist has already been recommended -> add some weight
// to recommendation.
if (!handled)
{
for (int i = 0; i < App.ViewModel.Recommendations.Count; i++)
{
if (App.ViewModel.Recommendations[i].Name == a.Name)
{
handled = true;
App.ViewModel.Recommendations[i].SimilarArtistCount++;
// position according to weight
if (i > 1)
{
int j = 1;
for (j = i - 1; j > 1; j--)
{
if (App.ViewModel.Recommendations[j].SimilarArtistCount >=
App.ViewModel.Recommendations[i].SimilarArtistCount)
{
j++; // This item (j) has been ranked higher or equal - correct index is one more
break;
}
}
if (i > j)
{
ArtistModel artist = App.ViewModel.Recommendations[i];
App.ViewModel.Recommendations.RemoveAt(i);
App.ViewModel.Recommendations.Insert(j, artist);
break;
}
}
}
}
}
// If the artist is not present in the device and has not yet been
// recommended, do it now.
if (!handled)
{
App.ViewModel.Recommendations.Add(new ArtistModel()
{
Name = a.Name,
Country = CountryCodes.CountryNameFromTwoLetter(a.Country),
Genres = a.Genres == null ? null : a.Genres[0].Name,
Thumb100Uri = a.Thumb100Uri,
Thumb200Uri = a.Thumb200Uri,
Thumb320Uri = a.Thumb320Uri,
Id = a.Id,
SimilarArtistCount = 1,
ItemWidth = "205",
ItemHeight = "205"
});
}
}
}
if (response != null && response.Error != null)
{
ShowMixRadioApiError();
}
HideProgressIndicator("FetchRecommendations()");
recommendResponses++;
await FetchRecommendations();
}
