/// <summary>
/// Process a Last.fm API request
/// </summary>
public void Process(UriWrapper uri, IHttpProcessor processor, User user)
{
// Create Last.fm object for this user
Lastfm lfm = new Lastfm(user);
// Pull URL parameters for Last.fm integration
string eve = null;
uri.Parameters.TryGetValue("event", out eve);
if (uri.Action == null || uri.Action == "auth")
{
// If not authenticated, pass back authorization URL
if (!lfm.SessionAuthenticated)
{
processor.WriteJson(new ScrobbleResponse(null, lfm.AuthUrl));
}
else
{
// Else, already authenticated
processor.WriteJson(new ScrobbleResponse("LFMAlreadyAuthenticated"));
}
return;
}
// If Last.fm is not authenticated, provide an authorization URL
if (!lfm.SessionAuthenticated)
{
logger.IfInfo("You must authenticate before you can scrobble.");
processor.WriteJson(new ScrobbleResponse("LFMNotAuthenticated", lfm.AuthUrl));
return;
}
// Create list of scrobble data
IList <LfmScrobbleData> scrobbles = new List <LfmScrobbleData>();
// Get Last.fm API enumerations
LfmScrobbleType scrobbleType = Lastfm.ScrobbleTypeForString(uri.Action);
// On invalid scrobble type, return error JSON
if (scrobbleType == LfmScrobbleType.INVALID)
{
processor.WriteJson(new ScrobbleResponse("LFMInvalidScrobbleType"));
return;
}
// On now playing scrobble type
if (scrobbleType == LfmScrobbleType.NOWPLAYING)
{
// Ensure ID specified for scrobble
if (uri.Id == null)
{
processor.WriteJson(new ScrobbleResponse("LFMNoIdSpecifiedForNowPlaying"));
return;
}
// Add successful scrobble to list, submit
scrobbles.Add(new LfmScrobbleData((int)uri.Id, null));
lfm.Scrobble(scrobbles, scrobbleType);
}
// Else, unknown scrobble event
else
{
// On null event, return error JSON
if (eve == null)
{
processor.WriteJson(new ScrobbleResponse("LFMNoEventSpecifiedForScrobble"));
return;
}
// Ensure input is a comma-separated pair
string[] input = eve.Split(',');
if ((input.Length % 2) != 0)
{
processor.WriteJson(new ScrobbleResponse("LFMInvalidInput"));
return;
}
// Add scrobbles from input data pairs
int i = 0;
while (i < input.Length)
{
scrobbles.Add(new LfmScrobbleData(int.Parse(input[i]), long.Parse(input[i + 1])));
i = i + 2;
}
}
// Scrobble all plays
string result = lfm.Scrobble(scrobbles, scrobbleType);
dynamic resp = null;
// No response, service must be offline
if (result == null)
{
processor.WriteJson(new ScrobbleResponse("LFMServiceOffline"));
return;
}
// If result is not null, store deserialize and store it
try
{
resp = JsonConvert.DeserializeObject(result);
}
catch (Exception e)
{
logger.Error(e);
}
// Check for nowplaying or scrobbles fields
if ((resp.nowplaying != null) || (resp.scrobbles != null))
{
// Write blank scrobble response
processor.WriteJson(new ScrobbleResponse());
return;
}
// Write error JSON if it exists
else if (resp.error != null)
{
processor.WriteJson(new ScrobbleResponse(string.Format("LFM{0}: {1}", resp.error, resp.message)));
return;
}
}
