using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

namespace TcgEngine.Client
{
    /// <summary>
    /// Same as HandCard, but simpler version for the opponent's cards
    /// </summary>

    public class HandCardBack : MonoBehaviour
    {
        public Image card_sprite;
        
        [Header("Dynamic Art Path")]
        [SerializeField] private string cardback_path;

        private RectTransform rect;

        private static List<HandCardBack> card_list = new List<HandCardBack>();

        void Awake()
        {
            card_list.Add(this);
            rect = GetComponent<RectTransform>();
            
            // 如果有设置路径，自动加载
            if (!string.IsNullOrEmpty(cardback_path))
            {
                LoadCardbackSprite();
            }
            else
            {
                SetCardback(null);
            }
        }

        private void OnDestroy()
        {
            card_list.Remove(this);
        }
        
        /// <summary>
        /// 在 Inspector 中修改值时自动重新加载
        /// </summary>
        private void OnValidate()
        {
            if (Application.isPlaying && !string.IsNullOrEmpty(cardback_path))
            {
                LoadCardbackSprite();
            }
        }

        public void SetCardback(CardbackData cb)
        {
            if (cb != null)
                card_sprite.sprite = cb.GetCardback();
        }
        
        /// <summary>
        /// 设置卡背图片，使用本地图片路径
        /// </summary>
        public void SetCardbackPath(string path)
        {
            cardback_path = path;
            LoadCardbackSprite();
        }
        
        /// <summary>
        /// 获取当前卡背路径
        /// </summary>
        public string GetCardbackPath()
        {
            return cardback_path;
        }
        
        /// <summary>
        /// 加载卡背图片
        /// </summary>
        private void LoadCardbackSprite()
        {
            if (!string.IsNullOrEmpty(cardback_path))
            {
                Sprite dynamicSprite = SpriteLoader.Get()?.LoadSprite(cardback_path);
                if (dynamicSprite != null)
                {
                    card_sprite.sprite = dynamicSprite;
                }
                else
                {
                    Debug.LogWarning($"HandCardBack 卡背图片加载失败: {cardback_path}");
                }
            }
            else
            {
                Debug.LogWarning($"HandCardBack cardback_path为空");
            }
        }

        public RectTransform GetRect()
        {
            if (rect == null)
                return GetComponent<RectTransform>();
            return rect;
        }

    }
}