🚧 Core API and abstractions extending

2026-07-31 00:29:24 +03:00 · 2020-03-02 00:00:44 +04:00
parent ed255e2506
commit e86049f4fd
7 changed files with 198 additions and 0 deletions
@@ -0,0 +1,76 @@
+using System;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using BotFramework;
+using Microsoft.Extensions.Logging;
+using Telegram.Bot.Exceptions;
+using Telegram.Bot.Types;
+
+namespace Kruzya.TelegramBot.Core.Service
+{
+    public abstract class AbstractTimedHostedService
+    {
+        private Timer _timer;
+        
+        protected readonly ILogger _logger;
+        protected readonly ITelegramBot _bot;
+        
+        protected virtual TimeSpan TimerPeriod => TimeSpan.FromSeconds(45);
+
+        protected AbstractTimedHostedService(ILogger logger, ITelegramBot bot)
+        {
+            _bot = bot;
+            _logger = logger;
+        }
+
+        #region IHostedService
+
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            _logger.LogInformation("Message sender service is starting.");
+            _timer = new Timer(Run, null, TimeSpan.Zero, TimeSpan.FromSeconds(1));
+
+            return Task.CompletedTask;
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            _logger.LogInformation("Message sender service is stopping.");
+            _timer?.Change(Timeout.Infinite, 0);
+
+            return Task.CompletedTask;
+        }
+        
+        #endregion
+        #region IDisposable
+        /// <summary>
+        /// Disposes the timer.
+        /// </summary>
+        public void Dispose()
+        {
+            _timer?.Dispose();
+        }
+        #endregion
+
+        private async void Run(object state)
+        {
+            _timer?.Change(Timeout.Infinite, 0);
+
+            try
+            {
+                await OnRun();
+            }
+            finally
+            {
+                var timerPeriod = this.TimerPeriod;
+                _timer?.Change(timerPeriod, timerPeriod);
+            }
+        }
+        
+        protected virtual async Task OnRun()
+        {
+            await Task.Delay(500);
+        }
+    }
+}