using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using GameFramework.Resource;
using SepCore.AsyncTask;
using SepCore.CustomUtility;
using SepCore.Definition;
using UnityEngine;
using UnityGameFramework.Runtime;

namespace SepCore.SpriteCache
{
    public class SpriteCacheComponent : GameFrameworkComponent
    {
        [SerializeField] private float _pixelsPerUnit = 100f;
        [SerializeField] private Vector2 _defaultPivot = new(0.5f, 0.5f);

        private Dictionary<string, Sprite> _spriteCache;
        private ResourceComponent _resource;

        void Start()
        {
            _spriteCache = new Dictionary<string, Sprite>();
            _resource = GameEntry.Resource;
        }

        public async UniTask<Sprite> GetSprite(string assetName)
        {
            if (_spriteCache.TryGetValue(assetName, out var sprite))
                return sprite;

            var texture = await _resource.LoadAssetAsync<Texture2D>(
                AssetUtility.GetUITextureIconAsset(assetName),
                Constant.AssetPriority.UIFormAsset);

            var newSprite = Sprite.Create(
                texture,
                new Rect(0, 0, texture.width, texture.height),
                _defaultPivot,
                _pixelsPerUnit);
            _spriteCache.TryAdd(assetName, newSprite);
            return newSprite;
        }

        private void OnDestroy()
        {
            _spriteCache.Clear();
            _resource = null;
        }
    }
}