using SteamWare.IO;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace LPA
{
    static class Program
    {
        /// <summary>
        /// Mutex x evitare multiple instances
        /// </summary>
        static Mutex _m;
        static bool IsSingleInstance()
        {
            try
            {
                // Try to open existing mutex.
                _ = Mutex.OpenExisting("SteamwareLPA");
            }
            catch
            {
                // If exception occurred, there is no such mutex.
                Program._m = new Mutex(true, "SteamwareLPA");

                // Only one instance.
                return true;
            }
            // More than one instance.
            return false;
        }


        /// <summary>
        /// Punto di ingresso principale dell'applicazione.
        /// </summary>
        [STAThread]
        static void Main()
        {
            bool enableStartup = true;
            // se abilitato il controllo istanza (solo 1...)
            if (memLayer.ML.CRB("singleInstance"))
            {
                utils.lgInfo("Single instance only: checking!");
                if (!Program.IsSingleInstance())
                {
                    utils.lgInfo("More than one instance found: exiting");
                    enableStartup = false;
                }
                else
                {
                    // Continue with program.
                    Console.WriteLine("OK! only One instance running");
                }
            }
            else
            {
                utils.lgInfo("Multiple instance allowed: check not requested");
            }
            // se abilitato procedo
            if (enableStartup)
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new MainForm());
            }
        }
    }
}