using System;
using System.Collections.Generic;
using System.Text;
using SafeNetLib;
using System.Threading;
using System.Diagnostics;
using System.IO;

namespace PAL_SOC
{
    class Program
    {
        public static DateTime lastEntry = DateTime.Now;

        public static Config cfg;
        public static bool unitsLoaded = false;
        public static bool addressLoaded = false;

        public static LOGS hLOG;

        LocationThread LocationConnection = null;     // the threads for the 5 services we handle
        DBconnThread DBConnection = null;

        Thread LocationThreadobj = null;
        Thread DBThreadobjGPS = null;
        Thread DBThreadobjAddr = null;
        Thread DBThreadobjAux = null;

        //alerts
        private static AlertHandler alertHandler;

        static void Main(string[] args)
        {

            hLOG = new LOGS();
            Version v = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
            Console.WriteLine("Safemobile PAL Gateway for Safenet " + v.ToString() + ", Copyright 2012");
            Console.WriteLine("       (www.Safemobile.com)        ");
            Console.WriteLine("-----------------------------------\n");
            Console.WriteLine("Version: " + v.ToString());

            if (args.Length > 0)
            {
                if (args[0] == "-v")
                {
                    Utils.ConsWrite(DebugMSG_Type.always, "Application ended!!!!");
                    System.Environment.Exit(0);
                }
            }

            //creat PID file
            Process currentProcess = Process.GetCurrentProcess();
            int procid = currentProcess.Id;
            if (File.Exists("pid.pid"))
            {
                File.Delete("pid.pid");
            }
            System.IO.File.WriteAllText("pid.pid", procid.ToString());

            Program p = new Program();
            //load config

            if (!p.LoadConfig())
            {
                Utils.ConsWrite(DebugMSG_Type.always, "EERROR loading configs!!!!\nPlease fix configs in DB/cfg file and restart the GW!!!");
                return;
            }


            try
            {
                if (args.Length > 0 && args[0] != null && args[0] != "")
                {
                    Utils.ConsWrite(DebugMSG_Type.CFG, "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
                    Utils.ConsWrite(DebugMSG_Type.CFG, "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
                    Utils.ConsWrite(DebugMSG_Type.CFG, "GW started with param:" + args[0]);
                    Utils.ConsWrite(DebugMSG_Type.CFG, "Replacing config.ini GW_ID:" + cfg.gatewayID + " with:" + args[0]);
                    cfg.gatewayID = args[0];
                    Utils.ConsWrite(DebugMSG_Type.CFG, "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
                    Utils.ConsWrite(DebugMSG_Type.CFG, "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
                }
            }
            catch (Exception ex)
            {
                Utils.ConsWrite(DebugMSG_Type.always, ex.ToString());
                return;
            }

            //start DEBUG
            //SafeNetLib.Debug d = new SafeNetLib.Debug(cfg.debug_port);

            p.StartDBService();
            //wait 
            while (!Program.unitsLoaded)
            {
                Utils.ConsWrite(DebugMSG_Type.DB, "Waiting for units to be fetched!!! sleep 5 secs!!!");
                Thread.Sleep(10000);
            }
            Utils.ConsWrite(DebugMSG_Type.DB, "------------------------------");
            Utils.ConsWrite(DebugMSG_Type.DB, "------------------------------");
            Utils.ConsWrite(DebugMSG_Type.DB, "----  Unit load finished -----");
            Utils.ConsWrite(DebugMSG_Type.DB, "------------------------------");
            Utils.ConsWrite(DebugMSG_Type.DB, "------------------------------");

            p.StartLocationService();

            p.StartAlertService();

            Utils.ConsWrite(DebugMSG_Type.DB, "###### Gateway started #######");
            while (true)
            {
                Thread.Sleep(10000);
                Utils.ConsWrite(DebugMSG_Type.DB, "Last entry at:" + Program.lastEntry + " Current time :" + DateTime.Now);
                LOGS.LOG("Last entry at:" + Program.lastEntry + " Current time :" + DateTime.Now);
                TimeSpan span = DateTime.Now.Subtract(Program.lastEntry);
                if (span.TotalMinutes > 10)
                {
                    Utils.ConsWrite(DebugMSG_Type.DB, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
                    Utils.ConsWrite(DebugMSG_Type.DB, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
                    Utils.ConsWrite(DebugMSG_Type.always, "Nothing added to BD for 10 minutes.\nRestareting all DB threads.");
                    Utils.ConsWrite(DebugMSG_Type.DB, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
                    Utils.ConsWrite(DebugMSG_Type.DB, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
                    LOGS.LOG("Nothing added to BD for 10 minutes.");
                    Program.lastEntry = DateTime.Now;

                    //p.RestartApp();

                    Utils.ConsWrite(DebugMSG_Type.DB, "Adding restart INFO to LOG file");
                    string format = "dd/MM/yyyy HH:mm";
                    string s_time = "[" + DateTime.Now.ToString(format) + "] ";
                    LOGS.LOG("@@@@@@@@@@@@@@@@@@@@@");
                    LOGS.LOG(s_time + "no GPS received for 10 minutes");
                    LOGS.LOG(s_time + "should restart");
                    LOGS.LOG("@@@@@@@@@@@@@@@@@@@@@");
                }
            }  
        }

        private bool LoadConfig()
        {
            bool ret = false;
            cfg = new Config();
            ret = true;
            return ret;
        }

        void StartDBService()
        {
            try
            {
                //SOC_connection sc = new SOC_connection(Server_IP, Server_Port, gatewayID);
                string MyConString = "SERVER=" + cfg.SERVER + ";" +
                    "DATABASE=" + cfg.DATABASE + ";" +
                    "UID=" + cfg.UID + ";" +
                    "PASSWORD=" + cfg.PASSWORD + ";Pooling=false;";

                DBConnection = new DBconnThread(MyConString, cfg.gatewayID);

                //Start GPS DB thread
                DBThreadobjGPS = new Thread(new ThreadStart(DBConnection.HandleConnectionGPS));
                DBThreadobjGPS.IsBackground = true;
                DBThreadobjGPS.Start();

                //Start Units DB thread
                DBThreadobjAux = new Thread(new ThreadStart(DBConnection.HandleConnectionAux));
                DBThreadobjAux.IsBackground = true;
                DBThreadobjAux.Start();

                //Start Addres insert thread
                DBThreadobjAddr = new Thread(new ThreadStart(DBConnection.HandleConnectionAddr));
                DBThreadobjAddr.IsBackground = true;
                DBThreadobjAddr.Start();
            }
            catch (Exception e)
            {
                Utils.ConsWrite(DebugMSG_Type.always, "Could not intialize the connection with location server!\r\n" + e.Message + "\r\nPlease check your internet connection !!");
                //System.Environment.Exit(1);
            }

        }

        void StartLocationService()
        {
            // create thread to listen UDP
            LocationConnection = new LocationThread();
            LocationConnection.port = cfg.locPort;
            //LocationConnection.parent = this;
            LocationThreadobj = new Thread(new ThreadStart(LocationConnection.HandleConnection));
            LocationThreadobj.IsBackground = true;
            LocationThreadobj.Start();
        }

        void StartAlertService()
        {
            string MyConString = "SERVER=" + cfg.SERVER + ";" +
                    "DATABASE=" + cfg.DATABASE + ";" +
                    "UID=" + cfg.UID + ";" +
                    "PASSWORD=" + cfg.PASSWORD + ";Pooling=false;";
            DBhandle DB = new DBhandle(MyConString, cfg.gatewayID);
            alertHandler = new AlertHandler(DB, cfg.alert_smtpServer, cfg.alert_smtpPort, cfg.alert_user, cfg.alert_psw,cfg.alert_sslState);

            //alertHandler.TestSendEmail("gabriel.oprea@safemobile.com", "test");
        }

        private void RestartApp()
        {
            Process oldProcess = Process.GetCurrentProcess();
            oldProcess.WaitForExit(5000);
            System.Diagnostics.Process.Start(System.Reflection.Assembly.GetExecutingAssembly().Location);
            System.Environment.Exit(1);
        }
    }
}