protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
var scheduleable = typeof(IBackgroundTaskScheduleable);
var serviceTypes = Assembly.GetExecutingAssembly()
.GetTypes()
.Where(o => o.GetInterface(scheduleable.FullName) != null)
.ToList();
if (serviceTypes.Count == 0)
{
return;
}
while (!stoppingToken.IsCancellationRequested)
{
try
{
using var scope = Provider.CreateScope();
foreach (var type in serviceTypes)
{
if (scope.ServiceProvider.GetService(type) is not IBackgroundTaskScheduleable service)
{
continue;
}
if (service.CanScheduleTask(GetLastSchedule(type)))
{
foreach (var task in service.GetBackgroundTasks())
{
Queue.Add(task);
}
LastSchedulesAt[type] = DateTime.Now;
}
}
}
catch (Exception ex)
{
var message = new LogMessage(LogSeverity.Error, nameof(BackgroundTaskScheduler), "Scheduling tasks failed.", ex);
await BotLoggingService.OnLogAsync(message);
}
finally
{
await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);
}
}
}
