using BrewMonster.Network;
using BrewMonster.Scripts.Managers;
using BrewMonster.UI;
using PerfectWorld.Scripts.Managers;
using System;
using System.Collections.Generic;
using BrewMonster.Scripts;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace BrewMonster
{
    public class DlgInstall : AUIDialog
    {
        public enum InstallMode
        {
            Enchase,
            Disenchase
        }

        [Header("Mode")][SerializeField] private InstallMode m_Mode = InstallMode.Enchase;

        [Header("Slot First")]
        [SerializeField]
        private Transform m_SlotFirstParent;

        [SerializeField] private TextMeshProUGUI m_TxtFirstName;

        [Header("Slot Second")]
        [SerializeField]
        private Transform m_SlotSecondParent;

        [SerializeField] private TextMeshProUGUI m_TxtSecondName;

        [Header("Buttons and Money")]
        [SerializeField]
        private TextMeshProUGUI m_TxtMoney;
        [SerializeField] private Button m_useItem;
        [SerializeField] private Button m_BtnMergeOrReset;
        [SerializeField] private Button m_BtnCancel;
        [SerializeField] private Button m_BtnClose;

        [SerializeField] private Sprite khung_item;
        [SerializeField] private GameObject itemInventoryRoot;

        private EC_IvtrItem m_SelectedEquip;
        private EC_IvtrItem m_SelectedMaterial;

        private int m_FirstInvSlot = -1;
        private int m_SecondInvSlot = -1;
        private int m_install_price = -1;

        public InstallMode GetInstallMode => m_Mode;
        public EC_IvtrItem SelectedEquip => m_SelectedEquip;
        public int FirstSlotIndex => m_FirstInvSlot;

        public override void Awake()
        {
            base.Awake();
            RegisterClick(m_SlotFirstParent, OnClickEquipSlot);

            if (m_Mode == InstallMode.Enchase && m_SlotSecondParent != null)
            {
                RegisterClick(m_SlotSecondParent, OnClickMaterialSlot);
            }
        }

        public override void OnEnable()
        {
            base.OnEnable();
            //todo need to set from other class
            // SetName("Win_Enchase");
            m_BtnMergeOrReset.onClick.AddListener(OnClickedMergeOrReset);
            m_BtnCancel.onClick.AddListener(OnCommandCancel);
            m_BtnClose.onClick.AddListener(OnCommandCancel);
            m_useItem.onClick.AddListener(OnUseItemClicked);
            m_install_price = -1;
            if (m_SlotSecondParent != null)
                m_SlotSecondParent.gameObject.SetActive(m_Mode == InstallMode.Enchase);
            ClearEquiment();
            ClearStone();
        }

        public override void OnDisable()
        {
            base.OnDisable();
            m_BtnMergeOrReset.onClick.RemoveListener(OnClickedMergeOrReset);
            m_BtnCancel.onClick.RemoveListener(OnCommandCancel);
            m_BtnClose.onClick.RemoveListener(OnCommandCancel);
            m_useItem.onClick.RemoveListener(OnUseItemClicked);
        }

        private void RestoreInventoryColors()
        {
            var canvas = FindFirstObjectByType<Canvas>();
            if (canvas == null)
                return;

            if (m_FirstInvSlot >= 0)
            {
                var btn = FindInventoryButtonBySlot(m_FirstInvSlot);
                SetInventorySlotGray(btn, false);
                m_FirstInvSlot = -1;
            }

            if (m_SecondInvSlot >= 0)
            {
                var btn = FindInventoryButtonBySlot(m_SecondInvSlot);
                SetInventorySlotGray(btn, false);
                m_SecondInvSlot = -1;
            }
        }

        private Button FindInventoryButtonBySlot(int slot)
        {
            var inventoryUI = FindFirstObjectByType<EC_InventoryUI>();
            if (inventoryUI == null)
                return null;

            var field = typeof(EC_InventoryUI)
                .GetField("inventoryPackButtons",
                    System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);

            if (field == null)
                return null;

            var list = field.GetValue(inventoryUI) as List<Button>;
            if (list == null || slot < 0 || slot >= list.Count)
                return null;

            return list[slot];
        }

        private void RegisterClick(Transform target, Action<PointerEventData> callback)
        {
            if (target == null) return;

            var trigger = target.GetComponent<EventTrigger>();
            if (trigger == null)
                trigger = target.gameObject.AddComponent<EventTrigger>();

            var entry = new EventTrigger.Entry
            {
                eventID = EventTriggerType.PointerClick
            };
            entry.callback.AddListener((data) => { callback((PointerEventData)data); });

            trigger.triggers.Add(entry);
        }

        private void OnClickEquipSlot(PointerEventData eventData)
        {
            if (m_SelectedEquip != null)
            {
                ReturnItemToInventory(m_FirstInvSlot);
                ClearEquiment();
            }
        }

        private void OnClickMaterialSlot(PointerEventData eventData)
        {
            if (m_SelectedMaterial != null)
            {
                ReturnItemToInventory(m_SecondInvSlot);
                ClearStone();
            }
        }

        private void CalculateUninstallPrice(EC_IvtrItem equipment)
        {
            if (equipment == null || !equipment.IsEquipment())
                return;

            EC_IvtrEquip pEquip = (EC_IvtrEquip)equipment;

            int nAmount = 0;
            for (int i = 0; i < pEquip.GetHoleNum(); i++)
            {
                int idIten = pEquip.GetHoleItem(i);
                if (idIten <= 0)
                    continue;

                EC_IvtrStone pStone = EC_IvtrItem.CreateItem(idIten, 0, 1) as EC_IvtrStone;
                if (pStone != null)
                {
                    STONE_ESSENCE pEssence = pStone.GetDBEssence();
                    nAmount += pEssence.uninstall_price;
                }
            }

            m_install_price = nAmount;
            m_TxtMoney.text = nAmount.ToString();
        }

        private void SetInventorySlotGray(Button btn, bool gray)
        {
            if (btn == null)
                return;

            var img = btn.GetComponent<Image>();
            if (img == null)
                return;

            img.color = gray
                ? new Color(0.3f, 0.3f, 0.3f, 1f)
                : Color.white;
        }

        private void SetSlotIcon(Transform slot, EC_IvtrItem item)
        {
            if (slot == null || item == null)
                return;

            var img = slot.GetComponentInChildren<Image>(true);
            if (img == null)
                return;

            img.sprite = EC_IvtrItemUtils.Instance.ResolveItemIconSprite(item.m_tid);
            img.enabled = img.sprite != null;
            img.color = Color.white;
            img.SetNativeSize();

            // GetGameUIMan()?.PlayItemSound(item, true);
        }

        private void ReturnItemToInventory(int slotIndex)
        {
            if (slotIndex < 0)
                return;

            var btn = FindInventoryButtonBySlot(slotIndex);
            SetInventorySlotGray(btn, false);
        }

        private void ClearEquiment()
        {
            if (m_FirstInvSlot >= 0)
            {
                ReturnItemToInventory(m_FirstInvSlot);
            }

            m_SelectedEquip?.Freeze(false);
            m_SelectedEquip = null;
            m_FirstInvSlot = -1;
            m_TxtFirstName.text = "";
            ClearSlotIcon(m_SlotFirstParent);
            if (m_Mode == InstallMode.Disenchase)
            {
                m_install_price = -1;
                m_TxtMoney.text = "0";
            }
        }

        private void ClearStone()
        {
            if (m_SecondInvSlot >= 0)
            {
                ReturnItemToInventory(m_SecondInvSlot);
            }

            m_SelectedMaterial?.Freeze(false);
            m_SelectedMaterial = null;
            m_SecondInvSlot = -1;
            m_TxtSecondName.text = "Nguyên liệu";
            ClearSlotIcon(m_SlotSecondParent);
            m_TxtMoney.text = "0";
            m_install_price = -1;
        }

        private void ClearSlotIcon(Transform slot)
        {
            if (slot == null)
                return;

            var img = slot.GetComponentInChildren<Image>(true);
            if (img == null)
                return;

            img.sprite = khung_item;
        }

        private void OnClickedMergeOrReset()
        {
            CECHostPlayer pHost = GetHostPlayer();
            string message = "";
            int nMoney = m_install_price;
            if (nMoney > pHost.GetMoneyAmount())
            {
                message = GetGameUIMan().GetStringFromTable(226);
                CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                return;
            }

            EC_IvtrItem pIvtrA = m_SelectedEquip;
            if (!pIvtrA.IsEquipment())
            {
                message = GetGameUIMan().GetStringFromTable(223);
                CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                return;
            }

            EC_IvtrEquip pEquipA = (EC_IvtrEquip)pIvtrA;
            if (pHost != null && m_Mode == InstallMode.Enchase)
            {
                if (pEquipA.GetEmptyHoleNum() <= 0)
                {
                    message = GetGameUIMan().GetStringFromTable(224);
                    CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                    return;
                }

                EC_IvtrItem pIvtrB = m_SelectedMaterial;
                if (pIvtrB == null || !pIvtrB.IsEmbeddable())
                {
                    message = GetGameUIMan().GetStringFromTable(225);
                    CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                    return;
                }

                if (pIvtrB.GetClassID() != (int)EC_IvtrEquip.EQUIP_CLASS_ID.ICID_STONE)
                    return;

                int nStoneLevel = ((EC_IvtrStone)pIvtrB).GetDBEssence().level;
                int nEquipLevel = -1;
                switch (pEquipA.GetClassID())
                {
                    case (int)EC_IvtrEquip.EQUIP_CLASS_ID.ICID_WEAPON:
                        nEquipLevel = ((CECIvtrWeapon)pEquipA).GetDBEssence().level;
                        break;
                    case (int)EC_IvtrEquip.EQUIP_CLASS_ID.ICID_ARMOR:
                        nEquipLevel = ((EC_IvtrArmor)pEquipA).GetDBEssence().level;
                        break;
                    case (int)EC_IvtrEquip.EQUIP_CLASS_ID.ICID_DECORATION:
                        nEquipLevel = ((EC_IvtrDecoration)pEquipA).GetDBEssence().level;
                        break;
                }

                if (nStoneLevel > nEquipLevel)
                {
                    message = GetGameUIMan().GetStringFromTable(300);
                    CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                    return;
                }

                //pr
                UnityGameSession.c2s_CmdNPCSevEmbed(
                    (ushort)m_SecondInvSlot, (ushort)m_FirstInvSlot,
                    pIvtrB.GetTemplateID(), pIvtrA.GetTemplateID());
                ClearEquiment();
                ClearStone();
                pHost.GetPack(InventoryConst.IVTRTYPE_PACK).UnfreezeAllItems();

                message = GetGameUIMan().GetStringFromTable(228);
                CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
            }
            else if (pHost != null && m_Mode == InstallMode.Disenchase)
            {
                if (pEquipA.GetEmptyHoleNum() == pEquipA.GetHoleNum())
                {
                    message = GetGameUIMan().GetStringFromTable(227);
                    CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                    return;
                }

                message = GetGameUIMan().GetStringFromTable(229);
                CECUIManager.Instance.ShowMessageBoxYesAndNo("", message, this,
                    () =>
                {
                    UnityGameSession.c2s_CmdNPCSevClearEmbeddedChip((ushort)m_FirstInvSlot, pIvtrA.GetTemplateID());
                    ClearEquiment();
                    pHost.GetPack(InventoryConst.IVTRTYPE_PACK).UnfreezeAllItems();

                    string successMessage = GetGameUIMan().GetStringFromTable(230);
                    CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                }, null);
            }
            else
            {
                BMLogger.LogError("Something go wrong with merge/reset");
            }
        }

        private void OnCommandCancel()
        {
            m_SelectedEquip?.Freeze(false);
            m_SelectedMaterial?.Freeze(false);

            RestoreInventoryColors();

            m_SelectedEquip = null;
            m_SelectedMaterial = null;

            m_TxtFirstName.text = "";
            m_TxtMoney.text = "0";

            if (m_Mode == InstallMode.Enchase)
                m_TxtSecondName.text = "Nguyên liệu";

            ClearSlotIcon(m_SlotFirstParent);
            if (m_Mode == InstallMode.Enchase)
            {
                ClearSlotIcon(m_SlotSecondParent);
            }

            m_install_price = -1;

            var host = GetHostPlayer();
            host?.EndNPCService();
            host?.GetPack(InventoryConst.IVTRTYPE_PACK).UnfreezeAllItems();
            CloseDialogue();
        }

        private void OnUseItemClicked()
        {
            itemInventoryRoot.SetActive(false);
            if (!TryGetSelectedInventoryItem(out var selectedItem, out var selectedSlot))
                return;

            if (m_Mode == InstallMode.Disenchase)
            {
                if (!selectedItem.IsEquipment())
                {
                    var message = GetGameUIMan().GetStringFromTable(223);
                    CECUIManager.Instance.ShowMessageBoxGeneral("", message, this);
                    return;
                }
                AssignEquipItem(selectedItem, selectedSlot);
                return;
            }

            if (m_SelectedEquip == null)
            {
                if (!selectedItem.IsEquipment())
                {
                    var msg  = GetGameUIMan().GetStringFromTable(223);
                    CECUIManager.Instance.ShowMessageBoxGeneral("", msg, this);
                    return;
                }
                AssignEquipItem(selectedItem, selectedSlot);
                return;
            }

            if (selectedItem.IsEquipment())
            {
                AssignEquipItem(selectedItem, selectedSlot);
                return;
            }

            if(!selectedItem.IsEmbeddable() ||
                selectedItem.GetClassID() != (int)EC_IvtrEquip.EQUIP_CLASS_ID.ICID_STONE)
            {
                var msg = GetGameUIMan().GetStringFromTable(225);
                CECUIManager.Instance.ShowMessageBoxGeneral("", msg, this);
                return;
            }
            AssginMaterialItem(selectedItem, selectedSlot);
        }

        private bool TryGetSelectedInventoryItem(out EC_IvtrItem item, out int slot)
        {
            item = null;
            slot = -1;

            var inventoryUI = FindFirstObjectByType<EC_InventoryUI>();
            if(inventoryUI == null)
                return false;

            var type = typeof(EC_InventoryUI);
            var packageField = type.GetField("currentSelectedPackage", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
            var slotField = type.GetField("currentSelectedSlot", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
            var itemField = type.GetField("currentSelectedItem", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);

            if (packageField == null ||slotField == null || itemField == null)
            {
                return false;
            }

            var selectedPackage = (byte)packageField.GetValue(inventoryUI);
            if(selectedPackage != 0)
                return false;

            slot = (int)slotField.GetValue(inventoryUI);
            item = itemField.GetValue(inventoryUI) as EC_IvtrItem;

            return item != null && slot >= 0;
        }

        private void AssignEquipItem(EC_IvtrItem item, int slot)
        {
            if(m_FirstInvSlot >= 0 && m_FirstInvSlot != slot)
            {
                ReturnItemToInventory(m_FirstInvSlot);
            }

            m_SelectedEquip?.Freeze(false);
            m_SelectedEquip = item;
            m_SelectedEquip.Freeze(true);
            m_FirstInvSlot = slot;

            m_TxtFirstName.text = EC_IvtrItemUtils.Instance.ResolveItemName(item.m_tid);
            SetSlotIcon(m_SlotFirstParent, item);
            SetInventorySlotGray(FindInventoryButtonBySlot(slot), true);

            if(m_Mode == InstallMode.Disenchase)
            {
                CalculateUninstallPrice(item);
            }
            else
            {
                UpdateResourceInfo();
            }
        }

        private void AssginMaterialItem(EC_IvtrItem item, int slot)
        {
            if(m_SecondInvSlot >= 0 && m_SecondInvSlot != slot)
            {
                ReturnItemToInventory(m_SecondInvSlot);
            }
            m_SelectedMaterial?.Freeze(false);
            m_SelectedMaterial = item;
            m_SelectedMaterial.Freeze(true);
            m_SecondInvSlot = slot;
            m_TxtSecondName.text = EC_IvtrItemUtils.Instance.ResolveItemName(item.m_tid);
            SetSlotIcon(m_SlotSecondParent, item);
            SetInventorySlotGray(FindInventoryButtonBySlot(slot), true);

            if (item is EC_IvtrStone stone)
            {
                var essence = stone.GetDBEssence();
                m_install_price = essence.install_price;
            }
            UpdateResourceInfo();
        }

        private void UpdateResourceInfo()
        {
            // GetGameUIMan().PlayItemSound(pIvtrSrc, true);
            EC_IvtrStone stone;
            STONE_ESSENCE pEssence;
            // ACHAR szText[40] = _AL("0");

            //check if material is stone and show price to merge
            if (m_Mode == InstallMode.Enchase)
            {
                if (m_SelectedMaterial != null && m_SelectedMaterial is EC_IvtrStone)
                {
                    stone = (EC_IvtrStone)m_SelectedMaterial;
                    pEssence = stone.GetDBEssence();
                    m_TxtMoney.text = $"{pEssence.install_price}";
                    // a_sprintf(szText, _AL("%d"), pEssence->install_price);
                    // m_pTxtGold->SetText(szText);
                }
                else
                {
                    m_install_price = 0;
                    m_TxtMoney.text = $"{0}";
                }
            }
            else if (m_Mode == InstallMode.Disenchase)
            {
                int i, nAmount = 0, idItem;
                if (m_SelectedEquip is EC_IvtrEquip pEquip)
                {
                    for (i = 0; i < pEquip.GetHoleNum(); i++)
                    {
                        idItem = pEquip.GetHoleItem(i);
                        if (idItem <= 0) continue;

                        stone = (EC_IvtrStone)EC_IvtrItem.CreateItem(idItem, 0, 1);
                        pEssence = stone.GetDBEssence();
                        nAmount += pEssence.uninstall_price;
                        stone = null;
                    }

                    m_install_price = nAmount;
                    m_TxtMoney.text = $"{nAmount}";
                }
                else
                {
                    m_install_price = 0;
                    m_TxtMoney.text = $"{0}";
                }
            }
        }
    }
}