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

public class InventoryManager : MonoBehaviour
{
    public static InventoryManager Instance { get; private set; }

    private readonly Dictionary<int, Image> inventoryItemsDict = new Dictionary<int, Image>();
    private readonly Dictionary<int, Image> equipmentItemsDict = new Dictionary<int, Image>();
    private readonly Dictionary<int, Image> quickAccessItemsDict = new Dictionary<int, Image>();
    private readonly Dictionary<int, Image> bankVaultItemsDict = new Dictionary<int, Image>();
    private readonly Dictionary<int, Image> forgeItemsDict = new Dictionary<int, Image>();

    [HideInInspector] public int[] inventoryItems = new int[24];
    public int[] inventoryItemCounts = new int[24];
    public string[] itemDescriptions = new string[24];
    private readonly Sprite[] inventory = new Sprite[24];

    public int[] equipmentItems = new int[6];
    public int[] equipmentItemCounts = new int[6];
    private readonly Sprite[] equipment = new Sprite[6];

    public int[] bankVaultItems = new int[25];
    public int[] bankVaultItemCounts = new int[25];
    private readonly Sprite[] bankVault = new Sprite[25];

    public String[] point_ui_element_names = { "harold_text", "nero_text", "horde_text","spade_text" };
    public String[] point_ui_element_values = { "xHarold: 0", "xNero: 0", "xHorde: 0","NotFound" };

    public void updatePointUIElement(string elementName, string value)
    {
        for (int i = 0; i < point_ui_element_names.Length; i++)
        {
            if (point_ui_element_names[i].Equals(elementName))
            {
                Debug.Log("Inside Loop,spade_text detected");
                point_ui_element_values[i] = value;
            }

        }
    }


		private void Awake()
    {
        Instance = this;
        InitializeDictionaries();
    }

    public void Start()
    {
        int[] m1 = new int[24];
        for (int i = 0; i < 24; i++)
        {
            m1[i] = -1;
        }

        int[] p0 = new int[24];
        for (int i = 0; i < 24; i++)
        {
            p0[i] = 0;
        }

        updateInventory(m1, p0);

        m1 = new int[6];
        for (int i = 0; i < 6; i++)
        {
            m1[i] = -1;
        }

        p0 = new int[6];
        for (int i = 0; i < 6; i++)
        {
            p0[i] = 0;
        }

        this.updateEquipment(m1, p0);

        m1 = new int[25];
        for (int i = 0; i < 25; i++)
            m1[i] = -1;
        p0 = new int[25];
        for (int i = 0; i < 25; i++)
            p0[i] = 0;
        this.updateBankVault(m1, p0);
    }

    public int GetForableItemCount(int id)
    {
        int count = 0;
        Weapon weapon = OnDemandLoader.Load<Weapon>("config/" + id);

        int tier = (int)weapon.WeaponLevel;
        Debug.Log("tier is " + tier.ToString());
        Debug.Log(" ore count tier is " + ForgeController.oreCounts[tier].ToString());

        if (ForgeController.oreCounts[tier] >= 100)
        {
            count++;
        }

        if (ForgeController.siegePassTier >= 4)
        {
			count++;
		}


		foreach (int itemID in inventoryItems)
        {
            if (weapon == null) continue;
            
            bool isForgable = weapon.Forgeable;
            if (isForgable && itemID == id)
            {
                count += 1;
            }
        }
        return count;
    }
    
    public int GetItemCount(int id)
    {
        int count = 0;
        foreach (int itemID in inventoryItems)
        {
            if (itemID == id)
            {
                count += 1;
            }
        }
        return count;
    }

    private void InitializeDictionaries()
    {
        for (int i = 0; i < 24; i++)
            inventoryItemsDict.Add(i, GameObject.Find("inventory_item_" + i).GetComponent<Image>());
        for (int i = 0; i < 6; i++)
            equipmentItemsDict.Add(i, GameObject.Find("equipment_item_" + i).GetComponent<Image>());
        for (int i = 18; i < 24; i++)
            quickAccessItemsDict.Add(i, GameObject.Find("qa_item_" + i).GetComponent<Image>());
        for (int i = 0; i < 25; i++)
        {
            GameObject bankSlot = GameObject.Find("Vault_item_" + i);
            bankVaultItemsDict.Add(i, bankSlot.GetComponent<Image>());

            //when dragging items, the text gets dragged too.
            bankSlot.transform.GetComponentInChildren<TMP_Text>().text = "";
        }
    }

    public void updateEquipment(int[] equipmentIds, int[] equipmentCounts)
    {
        
        for (int i = 0; i < 6; i++)
        {
            equipment[i] = null;
            this.equipmentItems[i] = equipmentIds[i];
            this.equipmentItemCounts[i] = equipmentCounts[i];
            equipment[i] = UIManager.Instance.RenderItem(equipmentIds[i]);
        }

        //if inventory is open, update immediately.
        if (UIManager.Instance.Inventory.activeSelf)
        {
            for (int i = 0; i < 6; i++)
            {
                equipmentItemsDict[i].sprite = equipment[i];
                equipmentItemsDict[i].color = equipment[i] != null ? Color.white : Color.clear;
            }
        }
    }

    public void updateInventory(int[] itemIds, int[] count)
    {
        for (int i = 0; i < 24; i++)
        {
            //clear inventory
            inventory[i] = null;

            inventoryItems[i] = itemIds[i];
            inventoryItemCounts[i] = count[i];
            if (inventoryItems[i] != -1)
            {
                inventory[i] = UIManager.Instance.RenderItem(itemIds[i]);
                itemDescriptions[i] = ItemDef.GetInstance().getDescription(itemIds[i]);
            }
            else
            {
                itemDescriptions[i] = "";
            }
        }

        //if inventory is open, update immediately.
        if (UIManager.Instance.Inventory.activeInHierarchy)
        {
            for (int i = 0; i < 24; i++)
            {
                inventoryItemsDict[i].sprite = inventory[i];
                inventoryItemsDict[i].color = inventory[i] != null ? Color.white : Color.clear;
            }
        }

        for (int i = 18; i < 24; i++)
        {
            quickAccessItemsDict[i].sprite = inventory[i];
            quickAccessItemsDict[i].color = inventory[i] != null ? Color.white : Color.clear;
        }



        
	}

    public void bankVaultRefresh()
    {
        for (int i = 0; i < 25; i++)
        {
            bankVaultItemsDict[i].sprite = bankVault[i];
            bankVaultItemsDict[i].color = bankVault[i] != null ? Color.white : Color.clear;
        }
    }

    public void updateBankVault(int[] itemIds, int[] count)
    {
        for (int i = 0; i < 25; i++)
        {
            bankVault[i] = null;
            bankVaultItems[i] = itemIds[i];
            bankVaultItemCounts[i] = count[i];
            TMP_Text stackCount = bankVaultItemsDict[i].GetComponentInChildren<TMP_Text>();
            stackCount.SetText("");
            
            if (bankVaultItems[i] != -1)
            {
                InventoryItemStats item = OnDemandLoader.Load<GameObject>("items/" + itemIds[i])
                    ?.GetComponent<InventoryItemStats>();
                if (item != null)
                {
                    bankVault[i] = UIManager.Instance.RenderItem(itemIds[i]);
                    stackCount.SetText(count[i].ToString());
                }
            }
        }

        //if bank vault is open, update immediately.
        if (UIManager.Instance.getInterface<GameObject>("BankVaultCanvas").activeInHierarchy)
        {
            for (int i = 0; i < 25; i++)
            {
                bankVaultItemsDict[i].sprite = bankVault[i];
                bankVaultItemsDict[i].color = bankVault[i] != null ? Color.white : Color.clear;
            }
        }
    }

    public void showInventory()
    {
        Player.Instance.updatePlayer = false;
        UIManager.Instance.showInterface("Inventory");
        AudioManager.Instance.playSound("inventory_open");
        Player.Instance.OnlyCastPlayerShadows(false, "PlayerUICamera");
        EventSystem.current.SetSelectedGameObject(null);
        EventSystem.current.SetSelectedGameObject(GameObject.Find("inventory_item_18"));

        for (int i = 0; i < 24; i++)
        {
            inventoryItemsDict[i].sprite = inventory[i];
            inventoryItemsDict[i].color = inventory[i] != null ? Color.white : Color.clear;
        }

        for (int i = 0; i < 6; i++)
        {
            equipmentItemsDict[i].sprite = equipment[i];
            equipmentItemsDict[i].color = equipment[i] != null ? Color.white : Color.clear;
            //Debug.Log("is EQUIPMENT NULL? " + equipment[i]);
        }

		for (int i = 0; i < point_ui_element_names.Length; i++)
		{
			GameObject.Find(point_ui_element_names[i]).GetComponent<TMP_Text>().text = point_ui_element_values[i];
		}
	}


    public void hideInventory()
    {
        UIManager.Instance.hideInterface("Inventory");
        Player.Instance.OnlyCastPlayerShadows(true);

        Player.Instance.updatePlayer = Player.Instance.IsAlive();
        AudioManager.Instance.playSound("inventory_close");
        Player.Instance.OnlyCastPlayerShadows(Player.Instance.IsAlive(), "PlayerUI");

        for (int i = 18; i < 24; i++)
        {
            quickAccessItemsDict[i].sprite = inventory[i];
            quickAccessItemsDict[i].color = inventory[i] != null ? Color.white : Color.clear;
        }
    }

    public void ToggleInventory()
    {
        if (!UIManager.Instance.BankVaultCanvas.activeInHierarchy)
        {
            if (UIManager.Instance.Inventory.activeInHierarchy)
            {
                hideInventory();
            }
            else
            {
                showInventory();
            }
        }
    }


}