using System;
using System.IO;
using System.Reactive.Disposables;
using System.Windows;
using System.Xml;
using ICSharpCode.AvalonEdit.Highlighting;
using ICSharpCode.AvalonEdit.Highlighting.Xshd;
using Intromat.ViewModels;
using ReactiveUI;

namespace Intromat.Views
{
    /// <summary>
    /// Interaction logic for ShaderFileView.xaml
    /// </summary>
    public partial class ShaderFileView : IViewFor<ShaderFileViewModel>
    {
        static ShaderFileView()
        {
            using var s = Application.GetResourceStream(new Uri("Resources/HLSL-Mode.xshd", UriKind.Relative))!.Stream;
            using var reader = new XmlTextReader(s);
            HighlightingManager.Instance.RegisterHighlighting("HLSL", new string[0], HighlightingLoader.Load(reader, HighlightingManager.Instance));
        }

        public ShaderFileView()
        {
            InitializeComponent();

            this.WhenActivated(d =>
            {
                var documentViewModel = ViewModel!;
                this.Bind(documentViewModel, vm => vm.Source, v => v._textEditor.Text).DisposeWith(d);
            });
        }

        object? IViewFor.ViewModel
        {
            get => ViewModel;
            set => ViewModel = (ShaderFileViewModel?)value;
        }

        public ShaderFileViewModel? ViewModel { get; set; }
    }
}