using System.ComponentModel;
using System.Windows;

using Autodesk.Revit.DB;

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using CommunityToolkit.Mvvm.Messaging;

namespace Sai.RvKits.RvView;

public partial class ViewManagerModel : ObservableObject
{
	[ObservableProperty]
	private UserViewDetailLevel? detailLevel;

	[ObservableProperty]
	private UserViewDiscipline? discipline;

	[ObservableProperty]
	private UserDisplayStyle displayStyle;

	[ObservableProperty]
	private string name;

	[ObservableProperty]
	private int scale;

	[ObservableProperty]
	private string sheetName;

	[ObservableProperty]
	private string sheetNumber;

	[ObservableProperty]
	private UserViewType userViewType;

	public View View { get; set; }

	[ObservableProperty]
	private View viewTemplate;
	public List<View> ViewTemplates { get; private set; }

    public ViewManagerModel(View view)
	{
		Name = view.Name;
		View = view;
		UserViewType = (UserViewType)view.ViewType;
		Discipline = view.HasViewDiscipline() ? (UserViewDiscipline)view.Discipline : null;
		DetailLevel = (UserViewDetailLevel)view.DetailLevel;
		DisplayStyle = (UserDisplayStyle)view.DisplayStyle;
		Scale = view.Scale;
		ViewTemplates = view.Document
			.OfClass<View>()
			.Cast<View>()
			.Where(v => v.IsTemplate && View.IsValidViewTemplate(v.Id))
			.ToList();
		//ViewTemplate = view.Document.GetElement(view.ViewTemplateId) as View;
		ViewTemplate = ViewTemplates.FirstOrDefault(template => View.ViewTemplateId == template.Id);
		//保证选中项在集合中，使得combobox默认选中
		//ViewTemplate = view.Document.OfCollector<View>().Cast<View>().FirstOrDefault(v => v.IsTemplate && v.Id == view.ViewTemplateId);
		//ViewTemplate = view.Document.GetElement(view.ViewTemplateId) as View;
		SheetName = view.get_Parameter(BuiltInParameter.VIEW_DESCRIPTION).AsString();
		SheetNumber = view is ViewSheet sheet ? sheet.SheetNumber : null;
	}

	//protected override void OnPropertyChanged(PropertyChangedEventArgs e)
	//{
	//	base.OnPropertyChanged(e);
	//	if (
	//		e.PropertyName == nameof(DetailLevel)
	//		|| e.PropertyName == nameof(Discipline)
	//		|| e.PropertyName == nameof(DisplayStyle)
	//		|| e.PropertyName == nameof(Scale)
	//		|| e.PropertyName == nameof(SheetName)
	//		|| e.PropertyName == nameof(ViewTemplate)
	//	)
	//	{
	//		Messenger.Send(new ViewMessage(this, e.PropertyName));
	//	}
	//}

	public bool IsDetailLevelEditable => UserViewType is not UserViewType.Schedule and not UserViewType.DrawingSheet;

	public bool IsDisciplineEditable => Discipline != null;

	public bool IsDisplayStyleEditable => UserViewType is not UserViewType.Schedule and not UserViewType.DrawingSheet;

	public bool IsScaleEditable =>
		Scale != 0
		&& (View is not View3D view3D || !view3D.IsPerspective)
		&& UserViewType != UserViewType.DrawingSheet
		&& UserViewType != UserViewType.Schedule
		&& UserViewType != UserViewType.Rendering;

	public bool IsSheetNameEditable => UserViewType is not UserViewType.Schedule and not UserViewType.DrawingSheet;

	public bool IsSheetNumberEditable => SheetNumber != null;

	public bool IsViewTemplateEditable => UserViewType != UserViewType.DrawingSheet;
}