using PashaBibko.Pacore.Attributes;
using System.Collections.Generic;
using UnityEngine;
using System;

namespace Fruitomation.Game.Items
{
    public class ItemInfoRegistry : MonoBehaviour
    {
        [Header("References")]
        [SerializeField] private SerializedItemInfoRegistry SerializedRegistry;
        
        private Dictionary<ItemType, ItemInfo> Dictionary;
        private static ItemInfoRegistry Instance;

        private void Awake()
        {
            /* Sets as the global instance */
            if (Instance is not null)
            {
                Debug.LogError("Multiple instances of ItemInfoRegistry found");
                return;
            }

            LoadFromRegistry();
            Instance = this;
        }

        private void OnDestroy()
        {
            if (Instance == this)
            {
                Instance = null;
            }
        }

        [InspectorCallable("Load Registry")] private void LoadFromRegistry()
        {
            Dictionary = new Dictionary<ItemType, ItemInfo>();
            foreach (ItemInfo info in SerializedRegistry.Registry)
            {
                Dictionary.Add(info.Type, info);
            }
            
#if UNITY_EDITOR
            ItemType[] types = Enum.GetValues(typeof(ItemType)) as ItemType[];
            Debug.Assert(types != null, nameof(types) + " != null");
            
            foreach (ItemType type in types)
            {
                bool contained = Dictionary.ContainsKey(type);
                if (!contained)
                {
                    Debug.LogWarning($"Type [{type}] is not contained in the registry");
                }
            }
#endif // UNITY_EDITOR
        }

        public static ItemInfo Get(ItemType type) => Instance.Dictionary[type];
    }
}