using Sirenix.OdinInspector;
using UnityEngine;

namespace Continentis.MainGame.Base
{
    public partial class BaseCollection<T> : ScriptableObject where T : BaseCollection<T>
    {
        private static T _instance;

        public static T Instance
        {
            get
            {
                string type = typeof(T).Name;
                if (_instance == null)
                {
                    // 默认尝试从 Resources 文件夹加载
                    string path = $"BaseCollections/{type}";
                    _instance = Resources.Load<T>(path);
                }
#if UNITY_EDITOR
                if (_instance == null)
                {
                    // 如果 Resources 里没有，尝试在整个 AssetDatabase 寻找
                    string[] guids = UnityEditor.AssetDatabase.FindAssets($"t:{type}");
                    if (guids.Length > 0)
                    {
                        string path = UnityEditor.AssetDatabase.GUIDToAssetPath(guids[0]);
                        _instance = UnityEditor.AssetDatabase.LoadAssetAtPath<T>(path);
                    }
                }
#endif
                if (_instance == null)
                {
                    Debug.LogError($"[BaseCollection] 项目中没有找到类型为 {typeof(T).Name} 的 BaseCollection 资产。" +
                                   $"请确保已在项目任意位置（建议：Resources/BaseCollections）创建该 ScriptableObject。");
                }

                return _instance;
            }
        }
    }
}