using UnityEngine;

namespace Unheimlich.Core
{
    public abstract class Singleton<T> : MonoBehaviour where T : MonoBehaviour
    {
        public static T Instance { get; private set; }
        
        protected virtual void Awake()
        {
            if (Instance != null && Instance != this)
            {
                Debug.LogWarning($"[{typeof(T).Name}] Multiple instances detected! Destroying duplicate on GameObject '{gameObject.name}'.");
                Destroy(this);
                return;
            }
            Instance = this as T;
            OnAwake();
        }
        
        protected virtual void OnDestroy()
        {
            if (Instance == this)
            {
                Instance = null;
                OnDestroyInstance();
            }
        }
        
        protected virtual void OnAwake() { }
        protected virtual void OnDestroyInstance() { }
    }
}