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

namespace TcgEngine.UI
{
    /// <summary>
    /// Displays an avatar
    /// </summary>

    public class AvatarUI : MonoBehaviour
    {
        public UnityAction<AvatarData> onClick;

        private Image avatar_img;
        private Button avatar_button;
        private Sprite default_icon;
        
        [Header("Dynamic Art Path")]
        [SerializeField] private string avatar_path;

        private AvatarData avatar;

        void Awake()
        {
            avatar_img = GetComponent<Image>();
            avatar_button = GetComponent<Button>();
            default_icon = avatar_img.sprite;

            if (avatar_button != null)
                avatar_button.onClick.AddListener(OnClick);
                
            if (!string.IsNullOrEmpty(avatar_path))
            {
                LoadAvatarSprite();
            }
        }
        
        /// <summary>
        /// 在 Inspector 中修改值时自动重新加载
        /// </summary>
        private void OnValidate()
        {
            if (Application.isPlaying && !string.IsNullOrEmpty(avatar_path))
            {
                LoadAvatarSprite();
            }
        }

        public void SetAvatar(AvatarData avatar)
        {
            this.avatar = avatar;
            avatar_img.enabled = true;
            avatar_img.sprite = default_icon;

            if (avatar != null)
            {
                avatar_img.sprite = avatar.GetAvatar();
            }
        }
        
        /// <summary>
        /// 设置头像图片，使用本地图片路径
        /// </summary>
        public void SetAvatarPath(string path)
        {
            if (avatar_path == path)
                return;
            avatar_path = path;
            LoadAvatarSprite();
        }
        
        /// <summary>
        /// 获取当前头像路径
        /// </summary>
        public string GetAvatarPath()
        {
            return avatar_path;
        }
        
        /// <summary>
        /// 加载头像图片
        /// </summary>
        private void LoadAvatarSprite()
        {
            if (!string.IsNullOrEmpty(avatar_path))
            {
                Sprite dynamicSprite = SpriteLoader.Get()?.LoadSprite(avatar_path);
                if (dynamicSprite != null)
                {
                    avatar_img.sprite = dynamicSprite;
                }
                else
                {
                    Debug.LogWarning($"AvatarUI 头像图片加载失败: {avatar_path}");
                }
            }
            else
            {
                Debug.LogWarning($"AvatarUI avatar_path为空");
            }
        }

        public void SetDefaultAvatar()
        {
            this.avatar = null;
            avatar_img.enabled = true;
            avatar_img.sprite = default_icon;
        }

        public void SetImage(Sprite sprite)
        {
            avatar_img.sprite = sprite;
        }

        public void Hide()
        {
            this.avatar = null;
            avatar_img.enabled = false;
        }

        public AvatarData GetAvatar()
        {
            return avatar;
        }

        private void OnClick()
        {
            onClick?.Invoke(avatar);
        }
    }
}