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 BuzzGUI.Interfaces;
using BuzzGUI.Common;
using BuzzGUI.Common.Templates;

namespace BuzzGUI.MachineView
{
	/// <summary>
	/// Interaction logic for CreateTemplateWindow.xaml
	/// </summary>
	public partial class CreateTemplateWindow : Window
	{
		public IEnumerable<IMachine> Machines { get; private set; }
		public IEnumerable<string> ExistingTemplates { get; private set; }
		public string TemplateName { get; private set; }

		public static TemplatePatternMode PatternMode { get; set; }
		public static TemplateWavetableMode WavetableMode { get; set; }

		static CreateTemplateWindow()
		{
			PatternMode = TemplatePatternMode.PatternsAndSequences;
			WavetableMode = TemplateWavetableMode.NoWavetable;
		}

		public CreateTemplateWindow(IEnumerable<IMachine> machines, IEnumerable<string> existing)
		{
			Machines = machines;
			ExistingTemplates = existing;

			InitializeComponent();
			
			noPatterns.IsChecked = PatternMode == TemplatePatternMode.NoPatterns;
			includePatterns.IsChecked = PatternMode == TemplatePatternMode.PatternsOnly;
			includeSequences.IsChecked = PatternMode == TemplatePatternMode.PatternsAndSequences;

			noWaves.IsChecked = WavetableMode == TemplateWavetableMode.NoWavetable;
			waveRefs.IsChecked = WavetableMode == TemplateWavetableMode.WaveRefsOnly;
			waves.IsChecked = WavetableMode == TemplateWavetableMode.WaveFiles;

			var generators = Machines.Where(m => m.DLL.Info.Type == MachineType.Generator && !m.IsControlMachine);
			var effects = Machines.Where(m => m.DLL.Info.Type == MachineType.Effect && !m.IsControlMachine);

			if (generators.Count() == 1)
				name.Text = Enumerable.Range(1, 10000).Select(n => generators.First().DLL.Info.ShortName + " - " + n.ToString()).Where(x => !ExistingTemplates.Contains(x)).First();
			else if (generators.Count() == 0 && effects.Count() == 1)
				name.Text = Enumerable.Range(1, 10000).Select(n => effects.First().DLL.Info.ShortName + " - " + n.ToString()).Where(x => !ExistingTemplates.Contains(x)).First();
			else
				name.Text = Enumerable.Range(1, 10000).Select(n => "Template" + n.ToString()).Where(x => !ExistingTemplates.Contains(x)).First();

			name.TextChanged += (sender, e) =>
			{
				bool exists = existing.Contains(name.Text);
				okButton.Content = exists ? "Update" : "OK";
				okButton.IsEnabled = name.Text.Length > 0 && name.Text.IsValidFileName();
			};

			okButton.Click += (sender, e) =>
			{
				if ((bool)includePatterns.IsChecked)
					PatternMode = TemplatePatternMode.PatternsOnly;
				else if ((bool)includeSequences.IsChecked)
					PatternMode = TemplatePatternMode.PatternsAndSequences;
				else
					PatternMode = TemplatePatternMode.NoPatterns;

				if ((bool)waveRefs.IsChecked)
					WavetableMode = TemplateWavetableMode.WaveRefsOnly;
				else if ((bool)waves.IsChecked)
					WavetableMode = TemplateWavetableMode.WaveFiles;
				else
					WavetableMode = TemplateWavetableMode.NoWavetable;

				TemplateName = name.Text;
				this.DialogResult = true;
				Close();
			};

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

			name.SelectAll();
			name.Focus();
		}
	}
}