using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using BITFALL.Cosmetic;
using BITKit;
using BITKit.IO;
using BITKit.Modification;
using BITKit.UX;
using Cysharp.Threading.Tasks;
using UnityEngine;
using UnityEngine.UIElements;
using YooAsset;

namespace BITFALL.UX
{
	public class UXCosmetics : MonoBehaviour
	{
		[SerializeReference,SubclassSelector] private ICosmeticService _cosmeticService;
		
		[SerializeField] private VisualTreeAsset cosmeticsTemplate;
		[UXBindPath("cosmetics-container")]
		private VisualElement _cosmeticsContainer;

		private void Start()
		{
			BITKit.UX.UXUtils.Inject(this);
			_cosmeticsContainer.Clear();

			_cosmeticService.OnCosmeticsChanged += Rebuild;
			
			Rebuild();
		}
		private void Rebuild()
		{
			_cosmeticsContainer.Clear();
			
			var modified = _cosmeticService.Modified.Values.ToArray();

			foreach (var cosmetic in _cosmeticService.Cosmetics)
			{
				var assetHandle = YooAssets.LoadAssetAsync(cosmetic.AddressablePath);
				assetHandle.WaitForAsyncComplete();
				if(destroyCancellationToken.IsCancellationRequested) return;

				var so = assetHandle.AssetObject.As<AssetableCosmetic>();
				var instance =new UXContainer(_cosmeticsContainer.Create(cosmeticsTemplate)) ;
				instance.icon.style.backgroundImage = new StyleBackground(so.Icon);
				instance.contextLabel.text = so.name;
				
				var inUsed = modified.Contains(cosmetic);
				if(inUsed)
				{
					instance.visualElement.AddToClassList("--toggled");
				}

				instance.button.clicked += () =>
				{
					try
					{
						if (inUsed)
						{
							_cosmeticService.Remove(so.Type, out _);
						}
						else
						{
							_cosmeticService.Add(so.Type, cosmetic);
						}
					
					}
					catch (NotRequireModifyException e)
					{
						Alert.Print("需要前置", e.Message);
					}
					catch (IncompatibleModifyException e)
					{
						Alert.Print("不兼容的修改", e.Message);
					}
					catch (NotSupportModifyException e)
					{
						Alert.Print("不支持的修改", e.Message);
					}
				};
			}
		}
	}

}