using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.ComponentModel;
using BuzzGUI.Interfaces;
using BuzzGUI.Common;
using PropertyChanged;

namespace BuzzGUI.MachineView
{
	/// <summary>
	/// Interaction logic for CreateTemplateWindow.xaml
	/// </summary>
	/// 
	
	[DoNotNotify]
	public partial class LatencyWindow : Window, INotifyPropertyChanged
	{
		bool isOverridden;
		public bool IsOverridden 
		{
			get { return isOverridden; }
			set
			{
				isOverridden = value;
				PropertyChanged.Raise(this, "IsOverridden");
				Validate();
			}
		}
		public int OverrideLatency { get; set; }

		public BuzzGUI.Common.Settings.EngineSettings EngineSettings { get { return Global.EngineSettings; } }

		bool invalid;
		Brush textBoxForegroundBrush;

		public LatencyWindow(IMachine machine)
		{
			DataContext = this;

			InitializeComponent();

			textBoxForegroundBrush = textbox.Foreground;

			IsOverridden = machine.OverrideLatency >= 0;
			OverrideLatency = machine.OverrideLatency;

			textbox.Text = IsOverridden ? OverrideLatency.ToString() : "0";
			Title = "Latency - " + machine.Name;

			if (machine.DLL.Info.Version >= 27)
			{
				status.Text = "Latency as reported by the machine: " + machine.Latency + " samples";
			}
			else
			{
				status.Foreground = Brushes.DarkBlue;
				status.Text = "The machine does not support latency reporting (too old for that).";
			}

			textbox.TextChanged += (sender, e) =>
			{
				Validate();
				if (!invalid) OverrideLatency = int.Parse(textbox.Text);
			};

			okButton.Click += (sender, e) =>
			{
				this.DialogResult = true;
				Close();
			};

			cancelButton.Click += (sender, e) =>
			{
				this.DialogResult = false;
				Close();
			};


			Validate();
		}

		void Validate()
		{
			int value = 0;
			invalid = IsOverridden && !Int32.TryParse(textbox.Text, out value) || value < 0;
			textbox.Foreground = invalid ? Brushes.Red : textBoxForegroundBrush; ;
			okButton.IsEnabled = !invalid;
		}


		#region INotifyPropertyChanged Members

		public event PropertyChangedEventHandler PropertyChanged;

		#endregion
	}
}