kmCustomReportsNET/ClassObj/ServiceMain.cs

using log4net;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Topshelf;

namespace kmCustomReportsNET.ClassObj;

internal class ServiceMain : ServiceControl
{
  ILog appLog = LogManager.GetLogger(Program.AppName);
  ConcurrentBag<Task> tasks = new();
  Version? AssemblyVersion = null;

  public bool Start(HostControl hostControl)
  {
    try
    {
      AssemblyVersion = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
    }
    catch 
    {
      AssemblyVersion = new Version("1.0");
    }
    tasks.Add(Task.Run(() => { Looper(); }));
    appLog.Info(string.Format("Service successfully started - v{0}", AssemblyVersion.ToString()));
    return true;
  } //Start

  public bool Stop(HostControl hostControl)
  {
    Program.isExiting = true;
    Task.WaitAll(tasks.ToArray());
    return true;
  } //Stop

  private void Looper()
  {
    var dtNext = DateTimeOffset.Now.AddSeconds(15);
    var rn = new Random();
    while (!Program.isExiting)
    {
      Thread.Sleep(rn.Next(250, 1500));
      if (ClsConstants.CanWeGo(1) && dtNext < DateTimeOffset.Now)
      {
        try
        {
          RunTheReports();
        }
        catch //(Exception)
        {
          // do nothing
        }
        dtNext = DateTimeOffset.Now.AddSeconds(rn.Next(60, 90));
      }
    }
  }

  private void RunTheReports()
  {
    using (var obj = new ClsDobbsEmail_T1439() { DebugMode = false })
    {
      obj.Go();
    }
  }

}