using Godot;
using System;
using System.Collections.Generic;
using System.Linq;

// ReSharper disable MemberCanBePrivate.Global

namespace BITKit;

public partial class TemplateBuilder : Node
{
	[Export] public TemplateResource template;

	[ExportCategory("Index")]
	[Export] private NodeBuilder indexBuilder;

	[ExportCategory("Weaver")]
	[Export] private FormBuilder formBuilder;

	[ExportCategory("UI 绑定")]
	[Export] private Button createTemplateButton;
	[Export] private Control templateBody;
	
	public FormResource CurrentTemplate { get; private set; }
	private ButtonGroup _buttonGroup;

	private readonly Dictionary<string, Button> indexDictionary = new();

	public override void _Ready()
	{
		_buttonGroup = new ButtonGroup();

		if (template.IsSupportCreateTemplate && createTemplateButton is not null)
		{
			createTemplateButton.Pressed += () =>
			{
				CurrentTemplate = template.CreateTemplate();
				Rebuild();
			};
		}

		Rebuild();
	}

	public override void _EnterTree()
	{
		template.OnStart();
	}

	public override void _ExitTree()
	{
		template.OnStop();
	}

	public void Rebuild()
	{
		indexBuilder.Clear();
		
		templateBody.Hide();

		if (CurrentTemplate is not null && template.GetTemplateNames().Any(x => x == CurrentTemplate.Name))
		{
			
		}
		else
		{
			CurrentTemplate = null;
		}

		foreach (var name in template.GetTemplateNames())
		{
			var container = indexBuilder.Build<UXContainer>();
			var _template = this.template.GetTemplate(name);
			var guid = Guid.NewGuid().ToString();
			
			
			container.button.Text = name;
			container.button.ButtonGroup = _buttonGroup;
			container.button.ToggleMode = true;

			container.button.Pressed += () =>
			{
				Entry(_template);
			};
			
			_template.SetMeta("RuntimeId",guid);
			indexDictionary.Add(guid,container.button);
		}
		if (CurrentTemplate is null) return;
		
		Entry(CurrentTemplate);
		if(indexDictionary.TryGetValue(CurrentTemplate.GetMeta("RuntimeId").AsString(),out var _currentButton))
			_currentButton.ButtonPressed = true;
	}
	public void Entry(FormResource _template)
	{
		CurrentTemplate = _template;
		formBuilder.Build(_template);
		templateBody.Show();
	}
}