using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using TradeIdeas.ServerConnection;
using TradeIdeas.MarketDataProxy.DataFormats;
using System.Threading;
using System.Diagnostics;


namespace MarketDataProxy
{
    public partial class QueueStatusForm : Form
    {
        public QueueStatusForm()
        {
            InitializeComponent(); 
            timer1.Enabled = true;
        }
        // for the CPU monitor..
        private static PerformanceCounter cpuCounter = new PerformanceCounter();
        
        //Code Snippet Inspired from Phil's ConnectionListenerForm/////
        private static QueueStatusForm _instance;
        private static Object _instanceLock = new Object();
        public static QueueStatusForm GetInstance()
        {   // We could allow more than one of these, but that's not the intent.
            lock (_instanceLock)
            {   // http://www.yoda.arachsys.com/csharp/singleton.html
                if (_instance == null)
                    _instance = new QueueStatusForm();
                return _instance;
            }
        }
        //End of Code Snippet Inspired from Phil's ConnectionListenerForm/////

       // Object stateInfo
        protected void timer1_Tick(object sender, System.EventArgs e)
        {   
            //Set our CPU Usage parameters
            cpuCounter.CategoryName = "Processor";
            cpuCounter.CounterName = "% Processor Time";
            cpuCounter.InstanceName = "_Total";

            //Here is the timed event...Please remember, when you 
            //"install" a timer to your winForm, PLEASE go to the
            //properties for the timer(TICK) and select timer1_tick
            //from the dropdown box (or whatever you've named that
            // timer object) OTHERWISE YOUR TIMER WONT WORK IN YOUR
            //CODE -RESULTING IN A LOT OF WASTED TIME!!!!
            //here's where stuff will be updated on the WindowsForm

           
            
            TradeIdeas.MarketDataProxy.SymbolListenerThread.Status testInfo =
             new TradeIdeas.MarketDataProxy.SymbolListenerThread.Status();
            try
            {
                //Using the Globals beats using delegates for data transfer...
                testInfo = TradeIdeas.MarketDataProxy.Globals.symbolListenerThread.GetStatus();
            }
            catch (NullReferenceException)
            {
                timer1.Stop();
            }

            txtTotalMsg.Text = testInfo.totalMessages.ToString();
            txtSubscriptionQueue.Text = testInfo.subscriptionQueueSize.ToString();
            txtNewData.Text = testInfo.dataProviderQueueSize.ToString();
            txtClose.Text = testInfo.disconnectQueueSize.ToString();
            txtTotSymbol.Text = testInfo.totalSymbols.ToString();
            txtRctSymbol.Text = testInfo.recentSymbols.ToString();
            txtRctMess.Text =  testInfo.recentMessages.ToString();
            txtRctItvl.Text = testInfo.recentInterval.ToString();
            txtConnChk.Text = TradeIdeas.MarketDataProxy.Globals.TeletraderConnectionCheckCounter.ToString();
            txtSndFunction.Text = TradeIdeas.MarketDataProxy.Globals.sendFunctionCounter.ToString();
            txtSendAll.Text = TradeIdeas.MarketDataProxy.Globals.sendAllCounter.ToString();
            txtCPU.Text = cpuCounter.NextValue().ToString();          
        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Hide();
        }
        private void ConnectionListenerForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (e.CloseReason == CloseReason.None)
            {
                e.Cancel = true;
                Hide();
            }
        }
   }
}