/// <summary>
///
/// </summary>
/// <returns></returns>
public async Task <DisconnectReason> ReceiveAsync(string vid, BrowserType browserType)
{
_disconnectReason = DisconnectReason.Unknown;
string liveChatHtml = await GetLiveChatHtml(vid);
string ytInitialData;
try
{
ytInitialData = Tools.ExtractYtInitialDataFromLiveChatHtml(liveChatHtml);
}
catch (ParseException ex)
{
_logger.LogException(ex, "live_chatからのytInitialDataの抜き出しに失敗", liveChatHtml);
return(DisconnectReason.YtInitialDataNotFound);
}
IContinuation initialContinuation;
List <CommentData> initialCommentData;
try
{
(initialContinuation, initialCommentData) = Tools.ParseYtInitialData(ytInitialData);
}
catch (YouTubeLiveServerErrorException ex)
{
_logger.LogException(ex, "サーバエラー", $"ytInitialData={ytInitialData},vid={vid}");
return(DisconnectReason.ServerError);
}
catch (ContinuationNotExistsException)
{
//放送終了
return(DisconnectReason.Finished);
}
catch (ChatUnavailableException)
{
//SendInfo("この配信ではチャットが無効になっているようです", InfoType.Error);
return(DisconnectReason.ChatUnavailable);
}
catch (Exception ex)
{
_logger.LogException(ex, "未知の例外", $"ytInitialData={ytInitialData},vid={vid}");
return(DisconnectReason.Unknown);
}
Connected?.Invoke(this, EventArgs.Empty);
//直近の過去コメントを送る。
foreach (var data in initialCommentData)
{
if (_receivedCommentIds.Contains(data.Id))
{
continue;
}
else
{
_receivedCommentIds.Add(data.Id);
}
var messageContext = CreateMessageContext(data, true);
MessageReceived?.Invoke(this, messageContext);
}
//コメント投稿に必要なものの準備
PrepareForPostingComments(liveChatHtml, ytInitialData);
var tasks = new List <Task>();
Task activeCounterTask = null;
IActiveCounter <string> activeCounter = null;
if (_options.IsActiveCountEnabled)
{
activeCounter = new ActiveCounter <string>()
{
CountIntervalSec = _options.ActiveCountIntervalSec,
MeasureSpanMin = _options.ActiveMeasureSpanMin,
};
activeCounter.Updated += (s, e) =>
{
MetadataUpdated?.Invoke(this, new Metadata {
Active = e.ToString()
});
};
activeCounterTask = activeCounter.Start();
tasks.Add(activeCounterTask);
}
IMetadataProvider metaProvider = null;
var metaTask = CreateMetadataReceivingTask(ref metaProvider, browserType, vid, liveChatHtml);
if (metaTask != null)
{
tasks.Add(metaTask);
}
_chatProvider = new ChatProvider(_server, _logger);
_chatProvider.ActionsReceived += (s, e) =>
{
foreach (var action in e)
{
if (_receivedCommentIds.Contains(action.Id))
{
continue;
}
else
{
activeCounter?.Add(action.Id);
_receivedCommentIds.Add(action.Id);
}
var messageContext = CreateMessageContext(action, false);
MessageReceived?.Invoke(this, messageContext);
}
};
_chatProvider.InfoReceived += (s, e) =>
{
SendInfo(e.Comment, e.Type);
};
var chatTask = _chatProvider.ReceiveAsync(vid, initialContinuation, _cc);
tasks.Add(chatTask);
_disconnectReason = DisconnectReason.Finished;
while (tasks.Count > 0)
{
var t = await Task.WhenAny(tasks);
if (t == metaTask)
{
try
{
await metaTask;
}
catch (Exception ex)
{
_logger.LogException(ex, "metaTaskが終了した原因");
}
//metaTask内でParseExceptionもしくはDisconnect()
//metaTaskは終わっても良い。
tasks.Remove(metaTask);
metaProvider = null;
}
else if (t == activeCounterTask)
{
try
{
await activeCounterTask;
}
catch (Exception ex)
{
_logger.LogException(ex, "activeCounterTaskが終了した原因");
}
tasks.Remove(activeCounterTask);
activeCounter = null;
}
else //chatTask
{
tasks.Remove(chatTask);
try
{
await chatTask;
}
catch (ReloadException ex)
{
_logger.LogException(ex, "", $"vid={vid}");
_disconnectReason = DisconnectReason.Reload;
}
catch (Exception ex)
{
_logger.LogException(ex);
_disconnectReason = DisconnectReason.Unknown;
}
_chatProvider = null;
//chatTaskが終わったらmetaTaskも終了させる
metaProvider?.Disconnect();
if (metaTask != null)
{
try
{
await metaTask;
}
catch (Exception ex)
{
_logger.LogException(ex, "metaTaskが終了した原因");
}
tasks.Remove(metaTask);
}
metaProvider = null;
activeCounter?.Stop();
if (activeCounterTask != null)
{
try
{
await activeCounterTask;
}
catch (Exception ex)
{
_logger.LogException(ex, "activeCounterTaskが終了した原因");
}
tasks.Remove(activeCounterTask);
}
activeCounter = null;
}
}
return(_disconnectReason);
}
