using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using CommunityToolkit.Mvvm.Messaging;

using ShrlAlgoToolkit.RevitAddins.RvMEP;
using ShrlAlgoToolkit.RevitAddins.Windows;

namespace ShrlAlgoToolkit.RevitAddins.RvView;

public partial class SystemDisplayViewModel : ObservableRecipient, IRecipient<Color>
{
	private SystemModel currentModel;

    [ObservableProperty]
    public partial List<SystemModel> SystemsCollection { get; set; }

    public SystemDisplayViewModel(UIApplication uiapp)
	{
		var doc = uiapp.ActiveUIDocument.Document;
		var enumerable = doc.OfClass<MEPSystemType>().Cast<MEPSystemType>();
		var systemModels = from mepSystemType in enumerable let model = new SystemModel(mepSystemType) select model;
		SystemsCollection = new List<SystemModel>(systemModels);
		IsActive = true;
		//订阅
		//WeakReferenceMessenger.Default.RegisterAll(this);
		//WeakReferenceMessenger.Default.Register<SelectedColor>(this);

		//WeakReferenceMessenger.Default.Register<SelectedColor>(this, (r, m) =>
		//{
		//    TaskDialog.Show("消息", "收到消息");
		//});

		//Messenger.Register<SystemDisplayViewModel, ColorPickerViewModel>(this, (r, m) =>
		//{
		//});
	}

	public void Receive(Color message)
	{
		//TaskDialog.Show("消息", "收到颜色消息");
		if (message != null)
		{
			currentModel.FillColor = message;
			currentModel.BackgroundColor = new System.Windows.Media.SolidColorBrush(
				System.Windows.Media.Color.FromRgb(message.Red, message.Green, message.Blue)
			);
		}

		//currentModel.BackgroundColor = System.Windows.Media.SelectedColor.FromRgb(message.Red, message.Green, message.Blue);
	}

	[RelayCommand]
	private void OpenColorPicker(object obj)
	{
		if (obj is SystemModel model)
		{
			currentModel = model;
			var viewModel = model.FillColor.IsValid
				? new ColorPickerViewModel(
					System.Windows.Media.Color.FromRgb(model.FillColor.Red, model.FillColor.Green, model.FillColor.Blue)
				)
				: new ColorPickerViewModel(System.Windows.Media.Color.FromRgb(0, 0, 0));
			var win = new ColorPickerWin(viewModel);
			win.ShowDialog();
			//WeakReferenceMessenger.Default.Register<SelectedColor>(this, (r, m) =>
			//{
			//    color = m;
			//});
		}
	}
}