using UnityEngine;
using UnityEngine.UI;

namespace SpellBoundAR.Items.Inventories.UI
{
    [DisallowMultipleComponent]
    [RequireComponent(typeof(Text))]
    public class InventoryEntryDisplayNameText : MonoBehaviour
    {
        [SerializeField] private Text text;
        [SerializeField] private InventoryEntryDisplay display;
        
        private IInventoryEntry _entry;

        private IInventoryEntry Entry
        {
            get => _entry;
            set
            {
                if (_entry == value) return;
                _entry = value;
                RefreshText();
            }
        }

        private void Awake() => OnValidate();
        
        private void OnValidate()
        {
            if (!text) text = GetComponent<Text>();
            if (!display) display = GetComponentInParent<InventoryEntryDisplay>();
        }

        private void OnEnable()
        {
            if (display) display.OnEntryChanged += RefreshEntry;
            RefreshEntry();
            RefreshText();
        }

        private void OnDisable()
        {
            if (display) display.OnEntryChanged -= RefreshEntry;
            Entry = null;
        }

        private void RefreshEntry()
        {
            Entry = display ? display.Entry : null;
        }

        private void RefreshText()
        {
            if (!text) return;
            text.text = Entry is {ItemTypeData: { }}
                ? Entry?.ItemTypeData.LocalizedName 
                : string.Empty;
        }
    }
}