parr_api/PARR.AIHITSyncerWorker/Worker.cs

using PARR.AIHITMainSyncer;

namespace PARR.AIHITSyncerWorker
{
    public class Worker : BackgroundService
    {
        private readonly ILogger<Worker> _logger;
        private readonly IAihitMainSyncer aihitSyncer;

        public Worker(ILogger<Worker> logger, IAihitMainSyncer aihitSyncer)
        {
            _logger = logger;
            this.aihitSyncer = aihitSyncer;
        }


        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            //await aihitSyncer.StartAsync();
            //await Task.Delay(Timeout.Infinite, stoppingToken);
            while (!stoppingToken.IsCancellationRequested)
            {
                try
                {
                    await aihitSyncer.StartAsync();
                    await Task.Delay(Timeout.Infinite, stoppingToken);
                    // Åñëè StartAsync çàâåðøàåòñÿ (à íå âèñèò â âå÷íîì îæèäàíèè),
                    // òî, âåðîÿòíî, íóæíî äîáàâèòü Task.Delay èëè break.
                    // Íî ñóäÿ ïî êîäó — StartAsync — ýòî äîëãîæèâóùàÿ ïîäïèñêà,
                    // çíà÷èò, îí **íå äîëæåí çàâåðøàòüñÿ** áåç èñêëþ÷åíèÿ.
                    // Ïîýòîìó, åñëè îí çàâåðøèëñÿ — îøèáêà.
                    _logger.LogWarning("AihitMainSyncer çàâåðøèë ðàáîòó íåîæèäàííî. Ïåðåçàïóñê ÷åðåç 10 ñåê...");
                }
                catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
                {
                    // Îæèäàåìîå çàâåðøåíèå ïðè îñòàíîâêå õîñòà
                    break;
                }
                catch (Exception ex)
                {
                    _logger.LogError(ex, "Íåîáðàáîòàííîå èñêëþ÷åíèå â Worker. Ïîâòîðíàÿ ïîïûòêà ÷åðåç 10 ñåê...");
                }

                try
                {
                    await Task.Delay(TimeSpan.FromSeconds(10), stoppingToken);
                }
                catch (OperationCanceledException)
                {
                    break;
                }
            }
        }


        public override Task StopAsync(CancellationToken cancellationToken)
        {
            aihitSyncer.StopAsync();

            return base.StopAsync(cancellationToken);
        }
    }
}