using BrewMonster.Network;
using BrewMonster.Scripts.Pet;
using CSNetwork.GPDataType;
using ModelRenderer.Scripts.GameData;
using System;
using System.Collections.Generic;
using System.IO;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace BrewMonster.UI
{
    public class CDlgPetList : AUIDialog
    {
        public const int CDLGPETLIST_SLOT_MAX = 20;

        [Header("Prefab Setup")]
        [SerializeField] private DlgPetListBox m_prefabPetSlot; 
        [SerializeField] private Transform m_container;        

        [Header("Button")]
        [SerializeField] private Button m_btnClose;
        [SerializeField] private Button m_btnHome;
        [SerializeField] private Button m_btnOut;

        [Header("References")]
        [SerializeField] private DlgPetDetail m_dlgPetDetail;

        private List<DlgPetListBox> m_spawnedSlots = new List<DlgPetListBox>();
        private int m_nPageIndex = 0;
        private int m_currentSelectSlotIndex = -1;
        private CECPetCorral m_cachedPetCorral;

        public void OnInitDialog()
        {
            if (!IsShow()) Show(true);

            m_btnClose.onClick.RemoveAllListeners();
            m_btnClose.onClick.AddListener(() =>
            {
                m_dlgPetDetail.ClearPetDetail();
                CloseDialogue();
            });

            if (m_btnHome != null)
            {
                m_btnHome.onClick.RemoveAllListeners();
                m_btnHome.onClick.AddListener(() =>
                {
                    if (m_currentSelectSlotIndex >= 0)
                    {
                        OnCommandRecall();
                    }
                });
            }

            if(m_btnOut != null)
            {
                m_btnOut.onClick.RemoveAllListeners();
                m_btnOut.onClick.AddListener(() =>
                {
                    if (m_currentSelectSlotIndex >= 0)
                    {
                        OnCommandSummon(m_currentSelectSlotIndex);
                    }
                });
            }

            RefreshUI();
        }

        public void RefreshUI()
        {
            UpdateList();
            UpdateButtonStates();
        }

        public void UpdateList()
        {
            m_cachedPetCorral = GetHostPlayer()?.GetPetCorral();
            if (m_cachedPetCorral == null) return;

            int operatingState = GetHostPlayer().IsOperatingPet();

            while (m_spawnedSlots.Count < CDLGPETLIST_SLOT_MAX)
            {
                DlgPetListBox newSlot = Instantiate(m_prefabPetSlot, m_container);
                m_spawnedSlots.Add(newSlot);
            }

            for (int i = 0; i < CDLGPETLIST_SLOT_MAX; i++)
            {
                int actualSlotIndex = i + (m_nPageIndex * CDLGPETLIST_SLOT_MAX);

                CECPetData pPet = m_cachedPetCorral.GetPetData(actualSlotIndex);
                bool isActivePet = (m_cachedPetCorral.GetActivePetIndex() == actualSlotIndex);

                m_spawnedSlots[i].SetData(
                    pPet,
                    actualSlotIndex,
                    isActivePet,
                    operatingState,
                    OnSlotClicked
                );
            }
        }

        private void OnSlotClicked(int slotIndex, bool isActivePet)
        {
            if (m_cachedPetCorral == null)
            {
                m_cachedPetCorral = GetHostPlayer()?.GetPetCorral();
            }

            if(m_cachedPetCorral == null)
                return;

            CECPetData pPetData = m_cachedPetCorral.GetPetData(slotIndex);
            if (pPetData != null)
            {
                m_currentSelectSlotIndex = slotIndex;
                UpdateButtonStates();

                if (m_dlgPetDetail != null)
                {
                    m_dlgPetDetail.UpdatePet(slotIndex);
                }
            }
        }


        private void UpdateButtonStates()
        {
            if (m_currentSelectSlotIndex < 0)
            {
                if(m_btnHome != null)
                    m_btnHome.interactable = false;
                if(m_btnOut != null)
                    m_btnOut.interactable = false;
                return;
            }

            if (m_cachedPetCorral == null)
            {
                m_cachedPetCorral = GetHostPlayer()?.GetPetCorral();
            }

            if(m_cachedPetCorral == null)
                return;

            int operatingState = GetHostPlayer().IsOperatingPet();
            bool isActivePet = (m_cachedPetCorral.GetActivePetIndex() == m_currentSelectSlotIndex);
            bool canOperate = (operatingState == 0);

            if(m_btnHome != null)
                m_btnHome.interactable = isActivePet && canOperate;
            if(m_btnOut != null)
                m_btnOut.interactable = !isActivePet && canOperate;
        }

        public void OnCommandSummon(int nSlot)
        {
            if (nSlot < 0)
                return;

            var actionSwitcher = GetHostPlayer().GetActionSwitcher();
            if (actionSwitcher != null && actionSwitcher.OnFlyToRideAction(nSlot))
                return;

            GetHostPlayer().SummonPet(nSlot);
            CloseDialogue();
        }

        public void OnCommandRecall()
        {
            GetHostPlayer().RecallPet();
            CloseDialogue();
        }

        public void OnPetDataChanged()
        {
            m_cachedPetCorral = null;
            if(IsShow())
                RefreshUI();
        }
    }
}