using System;
using PhxhSDK;
using System.Linq;
using UnityEngine;
using Framework.BI;
using Framework.Event;
using Framework.State;
using Gameplay.Manager;
using Framework.Manager;
using Framework.Constants;
using Gameplay.LoadingExecutor;
using System.Collections.Generic;
using Gameplay.ForestLevel;
using Object = UnityEngine.Object;
using Vector3 = UnityEngine.Vector3;
using NPOI.SS.Formula.Functions;

namespace Gameplay.Level
{
    public class LevelState : IState
    {
        private Thumbtack _curThumbtack;
        private string _levelID;

        private readonly Color _selectedColor = LevelUtils.GetRgbaColor(LevelConstants.SelectedColor);
        private readonly Color _defaultColor = Color.white;
        private bool _isMoving;
        private Transform _target;
        private List<Plank> prePlankList;
        private List<Plank> lastPlankList;

        public LevelState(string levelId)
        {
            _levelID = levelId;
        }

        public void OnEnter()
        {
            LevelManager.Instance.ReLoadLevelValue();
            LoadingExecutorManager.Instance.ExecuteLoading(new LevelLoadingExecutor(_levelID));
            InputManager.Instance.OnClick += _OnClick;
        }

        private void _OnClick(GameObject obj)
        {
            try
            {
                if (LevelManager.Instance.IsPause || LevelManager.Instance.IsOver) return;
                var hole = KongManager.Instance.GetHole(obj.name);
                if (hole != null && !_isMoving)
                {
                    //拿起图钉
                    if (_curThumbtack == null && hole.LevelThumbtack != null)
                    {
                        _curThumbtack = hole.LevelThumbtack;
                        hole.ShowGfx();
                        AudioManager.Instance.PlaySound(AudioType.SOUND, "S_Thumbtack", new UnityAudio(false));
                        _curThumbtack.Obj.GetComponent<SpriteRenderer>().color = _selectedColor;
                        hole.LevelThumbtack = null;
                        //记录拿起的Hole
                        LevelManager.Instance.CurUndoState.PreModifiedKong = hole;
                    }
                    //替换图钉
                    else if (_curThumbtack != null && hole.LevelThumbtack != null)
                    {
                        LevelManager.Instance.CurUndoState.PreModifiedKong.LevelThumbtack = _curThumbtack;
                        _curThumbtack.Obj.GetComponent<SpriteRenderer>().color = _defaultColor;
                        _curThumbtack = hole.LevelThumbtack;
                        hole.ShowGfx();
                        AudioManager.Instance.PlaySound(AudioType.SOUND, "S_Thumbtack", new UnityAudio(false));
                        _curThumbtack.Obj.GetComponent<SpriteRenderer>().color = _selectedColor;
                        hole.LevelThumbtack = null;
                        //记录拿起的Hole
                        LevelManager.Instance.CurUndoState.PreModifiedKong = hole;
                    }
                    //放下图钉
                    else if (_curThumbtack != null && hole.LevelThumbtack == null)
                    {
                        bool canMove = false;
                        //拿起位置和放下位置相同
                        if (LevelManager.Instance.CurUndoState.PreModifiedKong.Equals(hole))
                        {
                            hole.ShowGfx();
                            AudioManager.Instance.PlaySound(AudioType.SOUND, "S_Thumbtack", new UnityAudio(false));
                            _curThumbtack.Obj.GetComponent<SpriteRenderer>().color = _defaultColor;
                            hole.LevelThumbtack = _curThumbtack;
                            _curThumbtack = null;
                            return;
                        }

                        //记录放下的Hole
                        LevelManager.Instance.CurUndoState.LastModifiedKong = hole;
                        //没有木板遮挡洞口
                        if (!PlankManager.Instance.HasPlanksOverlapHole(hole))
                        {
                            //得到Hole所受影响的木板列表
                            var lankList =
                                PlankManager.Instance.FindAffectedPlanks(LevelManager.Instance.CurUndoState
                                    .LastModifiedKong);
                            if (lankList.Count == 0)
                            {
                                /*DebugUtil.LogWarning("[{0}]空洞没有影响到的木板",
                                    LevelManager.Instance.CurUndoState.LastModifiedHole.Obj.name);*/
                                canMove = true;
                            }
                            else
                            {
                                //如果该没有木板遮挡该洞口则可以移动
                                canMove = lankList.All(plank =>
                                    KongManager.Instance.IsOverlapHoleOfPlank(
                                        LevelManager.Instance.CurUndoState.LastModifiedKong, plank));
                            }
                        }

                        if (canMove)
                        {
                            hole.LevelThumbtack = _curThumbtack;

                            //移动前记录变化前的木板
                            RecordPlankStatus();

                            //Undo操作记录
                            if (prePlankList != null)
                            {
                                foreach (var plank in prePlankList)
                                {
                                    if (!plank.CurAffectedHoles.Values.Contains(LevelManager.Instance.CurUndoState
                                            .LastModifiedKong))
                                    {
                                        var undoTransform =
                                            new KeyValuePair<Vector3, Quaternion>(plank.Obj.transform.position,
                                                plank.Obj.transform.rotation);
                                        LevelManager.Instance.CurUndoState.AffectPlanks?.Add(plank, undoTransform);
                                    }
                                }
                            }

                            //开始移动
                            _isMoving = true;
                            _target = hole.Obj.transform;
                        }
                    }

                    NewbieGuide();
                }
            }
            catch (Exception e)
            {
                DebugUtil.LogError("LevelState OnClick Error: {0}", e);
            }
        }

        public void OnUpdate(float deltaTime)
        {
            try
            {
                PutThumbtack();
                if (_isMoving)
                {
                    _curThumbtack.Obj.layer = 13;
                    _curThumbtack.Obj.transform.position = Vector3.MoveTowards(_curThumbtack.Obj.transform.position,
                        _target.position, LevelConstants.MoveSpeed * Time.deltaTime);
                    if (_curThumbtack.Obj.transform.position == _target.position)
                    {
                        AudioManager.Instance.PlaySound(AudioType.SOUND, "S_Thumbtack", new UnityAudio(false));
                        BIManager.Instance.TrackEventLevel(cfg.BI.Event.level_step_move,
                            LevelManager.Instance.CurUndoState.PreModifiedKong.Obj.name,
                            LevelManager.Instance.CurUndoState.LastModifiedKong.Obj.name);
                        _isMoving = false;
                        AddorRemoveHj2D();
                        LevelManager.Instance.PushUndoState();
                        LevelManager.Instance.Step++;
                        RecoverPlankStatus();
                    }
                }
            }
            catch (Exception e)
            {
                DebugUtil.LogError("LevelState OnUpdate Error: {0}", e);
            }
        }

        /// <summary>
        /// 暂停时提前放置钉子
        /// </summary>
        private void PutThumbtack()
        {
            if ((LevelManager.Instance.IsPause || LevelManager.Instance.IsOver) && _isMoving && _curThumbtack != null)
            {
                _curThumbtack.Obj.transform.position = _target.position;
            }
        }

        private void AddorRemoveHj2D()
        {
            try
            {
                _curThumbtack.Obj.layer = 8;
                _curThumbtack.Obj.GetComponent<SpriteRenderer>().color = _defaultColor;

                //移除前记录位置
                if (prePlankList != null)
                {
                    foreach (var plank in prePlankList)
                    {
                        /*DebugUtil.LogError("LevelState检测前：检测{0}木板，最后的洞是{1}", plank.Obj.name,
                            LevelManager.Instance.CurUndoState.LastModifiedHole.Obj.name);*/
                        if (!plank.CurAffectedHoles.Values.Contains(LevelManager.Instance.CurUndoState
                                .LastModifiedKong))
                        {
                            //DebugUtil.LogError("LevelState：{0}木板需要移除钉子{1}", plank.Obj.name, _curThumbtack.Obj.name);
                            PlankManager.Instance.RemoveHingJoint2D(plank, _curThumbtack);
                        }
                        /*foreach (var affected in plank.CurAffectedHoles)
                        {
                            DebugUtil.LogError("木板{0}影响到的Hole有：{1}", plank.Obj.name, affected.Key);
                        }*/
                    }
                }

                if (lastPlankList != null)
                {
                    foreach (var plank in lastPlankList)
                    {
                        if (!plank.CurAffectedHoles.Values.Contains(LevelManager.Instance.CurUndoState.PreModifiedKong))
                        {
                            LevelManager.Instance.CurUndoState.AddH2DjPlanks.Add(plank);
                            PlankManager.Instance.AddHingJoint2D(plank,
                                LevelManager.Instance.CurUndoState.LastModifiedKong.LevelThumbtack);
                        }
                        else
                        {
                            LevelManager.Instance.CurUndoState.ReplacePlanks.Add(plank);
                            PlankManager.Instance.ReplaceAnchor(plank,
                                LevelManager.Instance.CurUndoState.LastModifiedKong.LevelThumbtack);
                        }
                    }
                }

                _curThumbtack = null;
            }
            catch (Exception e)
            {
                DebugUtil.LogError("LevelState AddorRemoveHj2D Error: {0}", e);
            }
        }

        private void RecordPlankStatus()
        {
            try
            {
                prePlankList =
                    PlankManager.Instance.FindAffectedPlanks(LevelManager.Instance.CurUndoState
                        .PreModifiedKong, true);
                lastPlankList =
                    PlankManager.Instance.FindAffectedPlanks(
                        LevelManager.Instance.CurUndoState.LastModifiedKong, true);
            }
            catch (Exception e)
            {
                DebugUtil.LogError("LevelState RecordPlankStatus Error: {0}", e);
            }
        }

        private void RecoverPlankStatus()
        {
            PlankManager.Instance.ResumeDetection();
            prePlankList.Clear();
            lastPlankList.Clear();
        }

        private void NewbieGuide()
        {
            if (LevelManager.Instance.IsNewbieGuide &&
                LevelManager.Instance.CurUndoState.PreModifiedKong != null)
            {
                EventManager.Instance.Send(EventManager.EventName.NewBieGuideNext);
            }
        }

        public void OnExit()
        {
            try
            {
                InputManager.Instance.OnClick -= _OnClick;
                if (_curThumbtack != null)
                {
                    Object.DestroyImmediate(_curThumbtack.Obj);
                    _curThumbtack = null;
                }

                LevelManager.Instance.Release();
            }
            catch (Exception e)
            {
                DebugUtil.LogError("LevelState OnExit Error: {0}", e);
            }
        }
    }
}