public TwitchService(UserService userService, ILogger <TwitchService> logger, ChatService chatService,
ConfigurationService configurationService, IntegrationService integrationService)
{
this.userService = userService;
this.logger = logger;
this.chatService = chatService;
this.configurationService = configurationService;
this.integrationService = integrationService;
}
protected override async Task ExecuteAsync(CancellationToken cancellationToken)
{
pollingInterval = minimumPollingInterval;
delay = defaultDelay;
cancellationToken.Register(() =>
{
logger.LogDebug($"YoutubeBackgroundService background task is stopping.");
});
using (var scope = serviceScopeFactory.CreateScope())
{
youtubeService = scope.ServiceProvider.GetRequiredService <YoutubeService>();
chatService = scope.ServiceProvider.GetRequiredService <ChatService>();
dashboardService = scope.ServiceProvider.GetRequiredService <DashboardService>();
while (!cancellationToken.IsCancellationRequested)
{
try
{
if (!youtubeService.IsEnabled().Result)
{
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.Disabled, cancellationToken);
await Task.Delay(delay, cancellationToken);
continue;
}
if (!youtubeService.IsConfigured())
{
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.NotConfigured, cancellationToken);
await Task.Delay(delay, cancellationToken);
continue;
}
var token = await youtubeService.GetToken();
if (token == null)
{
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.Forbidden, cancellationToken);
await Task.Delay(delay, cancellationToken);
continue;
}
if (token.Status == AccessTokenStatus.Expired && token.HasRefreshToken)
{
await youtubeService.RefreshToken(token);
}
if (!youtubeService.IsValidToken(token))
{
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.Forbidden, cancellationToken);
await Task.Delay(delay, cancellationToken);
continue;
}
while (!cancellationToken.IsCancellationRequested && youtubeService.IsEnabled().Result)
{
if (string.IsNullOrEmpty(liveChatId))
{
var liveBroadcast = await youtubeService.GetLiveBroadcast();
if (liveBroadcast == null)
{
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.Offline, cancellationToken);
await Task.Delay(delay, cancellationToken);
continue;
}
liveChatId = liveBroadcast.snippet.liveChatId;
}
var liveChatMessages = await youtubeService.GetLiveChatMessages(liveChatId);
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.Connected, cancellationToken);
if (liveChatMessages == null || !liveChatMessages.items.Any())
{
await Task.Delay(TimeSpan.FromMilliseconds(pollingInterval), cancellationToken);
continue;
}
foreach (var item in liveChatMessages.items)
{
await chatService.CreateMessage(youtubeService.MapToChatMessage(item));
}
pollingInterval = Math.Max(liveChatMessages.pollingIntervalMillis, minimumPollingInterval);
await Task.Delay(pollingInterval, cancellationToken);
}
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.Stopped, cancellationToken);
}
catch (Exception ex)
{
logger.LogError(ex.GetBaseException(), ex.GetBaseException().Message);
await dashboardService.UpdateStatus(ApiSource.Youtube, BackgroundServiceStatus.Error, cancellationToken);
}
await Task.Delay(delay, cancellationToken);
}
}
}