public async Task <SpotifyPlaylist> CreatePlaylist(string name, List <LastFmTrack> tracks)
{
var notFound = 0;
var processed = 0;
var toPost = new List <SpotifyTrack>();
_addedTracks = new List <SpotifyTrack>();
var token = await _localStore.GetItemAsync <string>(Constants.SpotifyTokenKey);
var user = await _localStore.GetItemAsync <SpotifyUser>(Constants.SpotifyUserKey);
_client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
var playlist = new CreateSpotifyPlaylist
{
Name = name
};
var result = await _client.PostAsJsonAsync($"{_baseUrl}/users/{user.Id}/playlists", playlist);
if (!result.IsSuccessStatusCode)
{
RequestRefresh?.Invoke(this, new MessageEventArgs {
Messages = new List <string> {
"Could not create playlist."
}
});
return(null);
}
var created = JsonSerializer.Deserialize <SpotifyPlaylist>(await result.Content.ReadAsStringAsync());
foreach (var lfmTrack in tracks)
{
var track = await SearchTrack(lfmTrack.Artist.Name, lfmTrack.Name);
if (track.NotFound)
{
notFound++;
}
else
{
toPost.Add(track);
_addedTracks.Add(track);
}
processed++;
if (toPost.Count == 10)
{
var query = string.Join(',', toPost.Select(_ => _.Uri?.ToString()));
await _client.PostAsync($"{_baseUrl}/playlists/{created.Id}/tracks?uris={query}", new StringContent(""));
toPost.Clear();
RequestRefresh?.Invoke(this, new MessageEventArgs
{
Messages = new List <string> {
$"Added {processed} of {tracks.Count}. {notFound} not found."
},
Type = UIUpdateType.Processing
});
}
}
if (toPost.Any())
{
var query = string.Join(',', toPost.Select(_ => _.Uri?.ToString()));
await _client.PostAsync($"{_baseUrl}/playlists/{created.Id}/tracks?uris={query}", new StringContent(""));
}
CreationDone?.Invoke(this, new MessageEventArgs
{
Type = UIUpdateType.Done,
Messages = new List <string>
{
$"Your playlist {name} was created.",
$"{tracks.Count - notFound} added.",
$"{notFound} tracks could not be found on Spotify.",
}
});
return(created);
}
public void FireCreationDone()
{
CreationDone.Fire(this, EventArgs.Empty);
}
public void OnCreationDone(TEntity entity)
{
CreationDone?.Invoke(entity);
OperationDone?.Invoke(entity, Operation.Create);
}
