using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;

namespace SimpleInventorySystem
{
    public class LimitStackSlotManager : MonoBehaviour
    {
        public int StackSlotLimit = 0;
        public int Count { get; private set; }
        public LimitStackSlot[] limitStackSlots;
        public bool combinedLimit = true;
        public TextMeshProUGUI capacityText;
        public SlotUI slot;

        private void Awake()
        {
            foreach (LimitStackSlot ls in limitStackSlots)
            {
                ls.limitStackSlotCapacities = this;
            }

            //slot = GetComponent<SlotUI>();

            SetRenderItemUIPropertyValue();
        }

        private void SetRenderItemUIPropertyValue()
        {
            if (slot != null)
            {
                capacityText.text = Count.ToString() + " / " + StackSlotLimit.ToString();
            }
        }

        public void SetStackSlotLimit(ItemUI item)
        {
            if(item == null || item.GetComponent<LimitStackSlotCapacity>() == null)
            {
                Debug.LogWarning("LimitStackSlotManager: SetStackSlotLimit(ItemUI item): The passed item should not be null and should have a LimitStackSlotCapacity component.");
                return;
            }

            StackSlotLimit = item.GetComponent<LimitStackSlotCapacity>().Capacity;
            Debug.Log($"StackSlotLimit: {StackSlotLimit}");

            SetRenderItemUIPropertyValue();
        }

        public void UnsetStackSlotLimit()
        {
            StackSlotLimit = 0;
            Count = 0;

            SetRenderItemUIPropertyValue();
        }

        // Start is called before the first frame update
        void Start()
        {
           foreach (LimitStackSlot ls in limitStackSlots)
            {
                ls.limitStackSlotCapacities = this;
            }
            slot.limitStackSlotManager = this;
        }

        // Update is called once per frame
        void Update()
        {

        }

        public void Increment(LimitStackSlot ls)
        {
            Count += ls.Weight;

            SetRenderItemUIPropertyValue();
        }
        public void Decrement(LimitStackSlot ls)
        {
            Count -= ls.Weight;

            SetRenderItemUIPropertyValue();
        }

        public bool HasReachedLimit(int weight)
        {
            return Count >= StackSlotLimit || Count + weight > StackSlotLimit;
        }

        private LimitStackSlot GetLimitStackSlot(SlotUI slot)
        {
            foreach (LimitStackSlot ls in limitStackSlots)
            {
                if(slot == ls.Slot)
                {
                    return ls;
                }
            }

            return null;
        }
    }
}