using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.UIElements;
using Button = UnityEngine.UI.Button;
using Image = UnityEngine.UI.Image;
using Toggle = UnityEngine.UI.Toggle;
using ScrollView = PhxhSDK.PhxhScrollView;
using Framework;
using Framework.Wrapper;
using Gameplay;
using Gameplay.Net;
using PhxhSDK;
using TGS;

public class UI_PVPDefendPrepareController : UIWindow
{
    //UI GameObj
    ///Auto Gen Start///
    ///Auto Gen End///
    private ScrollView _unitScrollView;

    private PrepareTeamManager _prepareTeamManager;

    private List<CharacterDataInfo> _allCharacterInfos;
    private List<VehicleCultivateData> _allVehicleInfos;

    private List<PVPUnitInfo> _pvpUnitInfos;
    private int _currSelectedIndex = -1;

    // private Button btn_back;
    // private Button btn_home;

    public override void OnAwake()
    {
        //bind UI GameObj
        UI_PVPDefendPrepareBinder.GetComponents(this);
        _prepareTeamManager = PrepareTeamManager.Instance;
        BindProperty();
        RegisterEvent();
    }

    private void BindProperty()
    {
        _unitScrollView = transform.Find("listBkg/Scroll View").GetComponent<ScrollView>();
        _unitScrollView.SetItemCountFunc(GetUnitCount);
        _unitScrollView.SetUpdateFunc(OnRenderUnitItem);
    }

    private void RegisterEvent()
    {
        BindButton("Button_Back/Button_back", OnClickBack);
        BindButton("Button_Back/Button_Home", OnClickHome);
        _prepareTeamManager.OnAddModel += OnAddModel;
        _prepareTeamManager.OnRemoveModel += OnRemoveModel;
        _prepareTeamManager.OnSwapModel += OnSwapModel;
    }

    private void RefreshData()
    {
        _allCharacterInfos = new List<CharacterDataInfo>(CharacterDataInfoManager.Instance.DataList);
        _allVehicleInfos = new List<VehicleCultivateData>(VehicleCultivateDataManager.Instance.DataList);
    }

    private void Refresh()
    {
        RefreshData();
        _unitScrollView.UpdateData();
    }

    private int GetUnitCount()
    {
        return _allCharacterInfos.Count + _allVehicleInfos.Count;
    }

    private async void OnRenderUnitItem(int itemIndex, RectTransform itemTrans)
    {
        GetUnitDataByIndex(itemIndex, out var characterData, out var vehicleData);
        var icon = itemTrans.Find("icon").GetComponent<Image>();
        var nameText = itemTrans.Find("name").GetComponent<TMP_Text>();
        if (characterData != null)
        {
            icon.sprite = await AssetManager.Instance.LoadAssetAsync<Sprite>(characterData.GetWholeHeadPath());
            nameText.text = characterData.Name;
        }

        if (vehicleData != null)
        {
            icon.sprite =
                await AssetManager.Instance.LoadAssetAsync<Sprite>(
                    VehicleDataHelper.GetVehiclePicPath((int)vehicleData.nID));
            nameText.text = vehicleData.Name;
        }

        var button = itemTrans.GetComponent<Button>();
        button.onClick.RemoveAllListeners();
        BindButton(button, () => { OnSelectUnit(itemIndex); });
    }

    private bool GetIndexIsCharacter(int index, out int realIndex)
    {
        bool isCharacter = index < _allCharacterInfos.Count;
        realIndex = isCharacter ? index : index - _allCharacterInfos.Count;
        return isCharacter;
    }

    private string GetPrefabPathByIndex(int index)
    {
        var isCharacter = GetIndexIsCharacter(index, out var realIndex);
        if (isCharacter)
        {
            var characterData = _allCharacterInfos[realIndex];
            return characterData.PrefabPath;
        }
        else
        {
            var vehicleData = _allVehicleInfos[realIndex];
            return vehicleData.Cfg.PrefabPath;
        }
    }

    private string GetPrefabPathByUnitInfo(PVPUnitInfo unitInfo)
    {
        string result = null;
        switch (unitInfo.type)
        {
            case Unit.UnitType.Charactor:
                var characterData = CharacterDataInfoManager.Instance.GetCharacterInfo((uint)unitInfo.unitID);
                if (characterData != null)
                {
                    result = characterData.PrefabPath;
                }

                break;
            case Unit.UnitType.Vehicle:
                var vehicleData = VehicleCultivateDataManager.Instance.GetVehicleCultivateData((uint)unitInfo.unitID);
                if (vehicleData != null)
                {
                    result = vehicleData.Cfg.PrefabPath;
                }

                break;
            default:
                break;
        }

        return result;
    }

    private void GetUnitDataByIndex(int itemIndex, out CharacterDataInfo characterDataInfo,
        out VehicleCultivateData vehicleData)
    {
        characterDataInfo = null;
        vehicleData = null;
        bool isCharacter = GetIndexIsCharacter(itemIndex, out var realIndex);
        if (isCharacter)
            characterDataInfo = _allCharacterInfos[realIndex];
        else
            vehicleData = _allVehicleInfos[realIndex];
    }

    #region Event

    private void OnClickBack()
    {
        CloseSelf();
    }

    private void OnClickHome()
    {
        CloseSelf();
    }

    private void OnSelectUnit(int itemIndex)
    {
        var prefabPath = GetPrefabPathByIndex(itemIndex);
        _prepareTeamManager.CurrPrefabPath = prefabPath;
        _prepareTeamManager.ShowPrepareRegion();
        _currSelectedIndex = itemIndex;
    }

    private void OnAddModel(int cellIndex, string prefabPath)
    {
        if(_currSelectedIndex == -1)
            return;
        var unitInfo = new PVPUnitInfo();
        GetUnitDataByIndex(_currSelectedIndex, out var characterDataInfo, out var vehicleData);
        var type = characterDataInfo != null ? Unit.UnitType.Charactor : Unit.UnitType.Vehicle;
        var unitID = characterDataInfo?.ID ?? vehicleData.nID;
        unitInfo.unitID = unitID;
        unitInfo.type = type;
        unitInfo.cellIndex = cellIndex;
        _pvpUnitInfos.Add(unitInfo);
    }

    private void OnRemoveModel(int cellIndex)
    {
        var index = _pvpUnitInfos.FindIndex(info => info.cellIndex == cellIndex);
        if (index >= 0)
            _pvpUnitInfos.RemoveAt(index);
    }

    private void OnSwapModel(int cellIndexLeft, int cellIndexRight)
    {
        var indexLeft = _pvpUnitInfos.FindIndex(unitInfo => unitInfo.cellIndex == cellIndexLeft);
        var indexRight = _pvpUnitInfos.FindIndex(unitInfo => unitInfo.cellIndex == cellIndexRight);
        var leftUnitInfo = indexLeft >= 0 ? _pvpUnitInfos[indexLeft] : null;
        var rightUnitInfo = indexRight >= 0 ? _pvpUnitInfos[indexRight] : null;
        if (leftUnitInfo != null)
            leftUnitInfo.cellIndex = cellIndexRight;
        if (rightUnitInfo != null)
            rightUnitInfo.cellIndex = cellIndexLeft;
    }

    #endregion

    private void CloseSelf()
    {
        PVPManager.Instance.ExitDefendPrepare(_pvpUnitInfos);
    }

    private void RevertFromCurrentPrepareData()
    {
        RefreshData();
        var savedPrepareData = Actor.Instance.Pvp.TeamData;
        _pvpUnitInfos = PVPUnitInfo.DeSerialize(savedPrepareData);
        Dictionary<int, string> prepareTeamData = new();
        foreach (var pvpUnitInfo in _pvpUnitInfos)
        {
            prepareTeamData.Add(pvpUnitInfo.cellIndex, GetPrefabPathByUnitInfo(pvpUnitInfo));
        }

        _prepareTeamManager.RevertPreparedModels(prepareTeamData);
    }

    protected override void OnOpenWindow()
    {
        base.OnOpenWindow();
        RevertFromCurrentPrepareData();
        Refresh();
    }

    //invoke when open window
    protected override void OnOpenWindow(object data = null)
    {
        Refresh();
    }

    //invoke when reload window
    protected override void OnReloadWindow(object data = null)
    {
    }

    //invoke when close window
    protected override void OnCloseWindow()
    {
        _prepareTeamManager.OnAddModel -= OnAddModel;
        _prepareTeamManager.OnRemoveModel -= OnRemoveModel;
        _prepareTeamManager.OnSwapModel -= OnSwapModel;
        _prepareTeamManager = null;
    }
}