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

namespace Beyond
{
    public class UseGemstoneStep : MonoBehaviour
    {
        private const int shadowSlayerItemID = 3;
        public BaseStepController baseStepController;
        public MenuScroll menuScroll;
        private bool usedGemstone = false;
        public bEquipArea weaponsArea;
        public PanelSwitcher weaponsPanelSwitcher;
        public bItemWindow resourcesWindow;
        public GameObject middleArrow, bottomArrow;

        private void Start()
        {
            //  equipSlots = equipArea.equipSlots;
            baseStepController.OnStarted += () => { ShowCorrectPointingArrow(); Player.Instance.ItemManager.onUseItem.AddListener(TryToMarkAsSwordPowered); };
            baseStepController.ConditionsAreMet += () => usedGemstone;
            baseStepController.OnCompleted += () => { CloseMenu(); Player.Instance.ItemManager.onUseItem.RemoveListener(TryToMarkAsSwordPowered); TryToSelectShadowSlayer(); };
        }

        private void ShowCorrectPointingArrow()
        {
            if (resourcesWindow.slots.Count > 2)
            {
                middleArrow.SetActive(false);
                bottomArrow.SetActive(true);
            }
            else
            {
                middleArrow.SetActive(true);
                bottomArrow.SetActive(false);
            }
        }

        public void CloseMenu()
        {
            menuScroll.CloseScroll();
        }

        public void TryToSelectShadowSlayer()
        {
            bEquipSlot slot = weaponsArea.equipSlots.Find(slot => slot.item && slot.item.id == shadowSlayerItemID);
            if (!slot) //
            {
                bItem item = Player.Instance.ItemManager.items.Find(item => item.id == shadowSlayerItemID);
                if (!item) //if for some reason cant find the sword in inventory, should not be possible to happen, but in case...
                {
                    return;
                }
                weaponsArea.AddItemToEquipSlot(weaponsArea.currentSelectedSlot, item);
            }
            else if (weaponsArea.currentEquippedSlot.item.id != shadowSlayerItemID)
            {
                int slayerAreaIndex = weaponsArea.equipSlots.FindIndex(wSlot => wSlot.item.id == shadowSlayerItemID);
                weaponsPanelSwitcher.SetPanelToIndex(slayerAreaIndex);
            }
        }

        public void TryToMarkAsSwordPowered(bItem itemUsed)
        {
            if (itemUsed.type == bItemType.Gemstones)
            {
                usedGemstone = true;
            }

            Player.Instance.ItemManager.onUseItem.RemoveListener(TryToMarkAsSwordPowered);
        }
    }
}