/*********************************************************************
 *
 *  $Id: main.cs 32713 2018-10-19 15:30:53Z seb $
 *
 *  An example that show how to use a  Yocto-LatchedRelay
 *
 *  You can find more information on our web site:
 *   Yocto-LatchedRelay documentation:
 *      https://www.yoctopuce.com/EN/products/yocto-latchedrelay/doc.html
 *   C# API Reference:
 *      https://www.yoctopuce.com/EN/doc/reference/yoctolib-cs-EN.html
 *
 *********************************************************************/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
  class Program
  {
    static void usage()
    {
      string execname = System.AppDomain.CurrentDomain.FriendlyName;
      Console.WriteLine("Usage:");
      Console.WriteLine(execname + "  <serial_number>  [ A | B ]");
      Console.WriteLine(execname + "  <logical_name>  [ A | B ]");
      Console.WriteLine(execname + "  any [ A | B ]");
      System.Threading.Thread.Sleep(2500);
      Environment.Exit(0);
    }

    static void Main(string[] args)
    {
      string errmsg = "";
      string target;
      YRelay relay;
      string state;

      if (args.Length < 2) usage();
      target = args[0].ToUpper();
      state = args[1].ToUpper();

      if (YAPI.RegisterHub("usb", ref errmsg) != YAPI.SUCCESS) {
        Console.WriteLine("RegisterHub error: " + errmsg);
        Environment.Exit(0);
      }

      if (target == "ANY") {
        relay = YRelay.FirstRelay();
        if (relay == null) {
          Console.WriteLine("No module connected (check USB cable) ");
          Environment.Exit(0);
        }
      } else relay = YRelay.FindRelay(target + ".relay1");

      if (relay.isOnline()) {
        if (state == "A") {
          relay.set_state(YRelay.STATE_A);
        } else {
          relay.set_state(YRelay.STATE_B);
        }
      } else {
        Console.WriteLine("Module not connected");
        Console.WriteLine("check identification and USB cable");
      }
      YAPI.FreeAPI();
    }
  }
}
