using Thousandto.Code.Center;
using Thousandto.Code.Global;
using Thousandto.Code.Logic.LocalPlayerBT;
using Thousandto.Core.Base;
using System.Collections.Generic;
using UnityEngine;
using FLogger = UnityEngine.Gonbest.MagicCube.FLogger;

namespace Thousandto.Code.Logic
{
    /// <summary>
    /// 输入系统
    /// </summary>
    public class InputSystem : BaseSystem, IInputSystem
    {
        #region //私有变量

        //点击处理
        private HitHandler _hitHandler = new HitHandler();
        //摄像机调整处理
        private CameraAdjustHandler _cameraAdjustHandler = new CameraAdjustHandler();
        //摇杆处理
        private JoystickHandler _joystickHandler = new JoystickHandler();
        //翻滚闪避处理器
        private RollDodgeHandler _rollDadgeHandler = new RollDodgeHandler();
        //玩家控制器
        private IPlayerInputer _player = null;
        //手势加载器
        private IFingerGesturesEvent _fingerGesturesEvent = null;
        //是否被激活
        private bool _isActive = false;
        //UI检测点击处理
        private IUIChecker _checkHitUI = null;

        private Dictionary<int, FingerState> _fingerStateTable = new Dictionary<int, FingerState>();

        #endregion


        #region //公共接口

        //摇杆处理
        public JoystickHandler JoystickHandler
        {
            get
            {
                return _joystickHandler;
            }
        }

        public RollDodgeHandler RollDadgeHandler
        {
            get
            {
                return _rollDadgeHandler;
            }
        }
        public CameraAdjustHandler CameraAdjustHandler
        {
            get
            {
                return _cameraAdjustHandler;
            }
        }


        //初始化处理
        public void Initialize()
        {
            _rollDadgeHandler.Initialize();
            _isActive = false;
        }

        //卸载处理
        public void Uninitialize()
        {
            _rollDadgeHandler.Uninitialize();
            _isActive = false;
            UnBindFingerGesturesHandler();
        }

        //设置UI检测对象
        public void SetUIChecker(IUIChecker checker)
        {
            _checkHitUI = checker;
            _joystickHandler.SetUIChecker(_checkHitUI);
        }

        //设置手势的事件处理器
        public void SetFingerGesturesEventTrigger(IFingerGesturesEvent e, bool isBindHandler = false)
        {
            if (_fingerGesturesEvent != null)
            {
                UnBindFingerGesturesHandler();
            }

            _fingerGesturesEvent = e;

            if (isBindHandler && _fingerGesturesEvent != null)
            {
                BindFingerGesturesHandler();
            }
        }
        //进入场景的操作
        public void EnterScene()
        {
            //使用协成
            //获取当前被激活的场景
            var scene = GameCenter.GameSceneSystem.GetActivedScene();
            //获取当前角色
            var lp = GameCenter.GameSceneSystem.GetLocalPlayer();

            if (lp == null) return;

            //初始化Player的行为树
            PlayerBT.Initialize();
            PlayerBT.InitializeBD(lp);

            //1.刷新各个处理器的一些引用  
            _hitHandler.Refresh(scene.SceneCamera);
            _joystickHandler.Refresh(scene.SceneCamera, scene.navigator, lp);
            _cameraAdjustHandler.Refresh(scene.SceneCameraControl);
            _player = lp;


            //绑定手势操作的处理回调
            BindFingerGesturesHandler();

            _fingerStateTable.Clear();
            _isActive = true;

            GameCenter.RegFixEventHandle(LogicEventDefine.EID_EVENT_FORM_SHOW_AFTER, OnFormOpen);
            GameCenter.RegFixEventHandle(LogicEventDefine.EID_EVENT_CANEL_MAINHANDLE, OnCanelMianHandle);
        }

        //离开场景的操作
        public void LeaveScene()
        {
            _isActive = false;
            //取消绑定手势操作的处理回调
            UnBindFingerGesturesHandler();

            //复位其他处理器
            _hitHandler.Reset();
            _cameraAdjustHandler.Reset();
            _joystickHandler.Reset();
            _player = null;
            PlayerBT.Uninitialize();
            GameCenter.UnRegFixEventHandle(LogicEventDefine.EID_EVENT_FORM_SHOW_AFTER, OnFormOpen);
            GameCenter.UnRegFixEventHandle(LogicEventDefine.EID_EVENT_CANEL_MAINHANDLE, OnCanelMianHandle);
        }

        //取消所有输入
        public void CanelAllInput()
        {
            _fingerStateTable.Clear();
            if(_joystickHandler.Draging)
            {
#if !USE_PC_MODEL
                _joystickHandler.DoJoystickDragEnd();
#endif
            }
        }

        //输入系统的心跳处理
        protected override bool OnUpdate(float deltaTime)
        {
            if (_isActive)
            {
                _joystickHandler.Update();
                PlayerBT.Run(deltaTime);
            }
            return true;
        }
#endregion

#region //场景玩家手势操作控制处理 -- 私有方法
        //绑定手势事件的处理
        private void BindFingerGesturesHandler()
        {
            if (_fingerGesturesEvent == null) return;

            _fingerGesturesEvent.OnFingerDown += FingerGestures_OnFingerDown;
            _fingerGesturesEvent.OnFingerUp += FingerGestures_OnFingerUP;

            _fingerGesturesEvent.OnPinchBegin += FingerGestures_OnPinchBegin;
            _fingerGesturesEvent.OnPinchMove += FingerGestures_OnPinchMove;
            _fingerGesturesEvent.OnPinchEnd += FingerGestures_OnPinchEnd;

            _fingerGesturesEvent.OnFingerMoveBegin += FingerGestures_OnMoveBegin;
            _fingerGesturesEvent.OnFingerMove += FingerGestures_OnMove;
            _fingerGesturesEvent.OnFingerMoveEnd += FingerGestures_OnMoveEnd;

            //FLogger.Log("BindFingerGesturesHandler)");
        }

        private void UnBindFingerGesturesHandler()
        {
            if (_fingerGesturesEvent == null) return;

            _fingerGesturesEvent.OnFingerDown -= FingerGestures_OnFingerDown;
            _fingerGesturesEvent.OnFingerUp -= FingerGestures_OnFingerUP;

            _fingerGesturesEvent.OnPinchBegin -= FingerGestures_OnPinchBegin;
            _fingerGesturesEvent.OnPinchMove -= FingerGestures_OnPinchMove;
            _fingerGesturesEvent.OnPinchEnd -= FingerGestures_OnPinchEnd;

            _fingerGesturesEvent.OnFingerMoveBegin -= FingerGestures_OnMoveBegin;
            _fingerGesturesEvent.OnFingerMove -= FingerGestures_OnMove;
            _fingerGesturesEvent.OnFingerMoveEnd -= FingerGestures_OnMoveEnd;

            //FLogger.Log("UnBindFingerGesturesHandler)");
        }

        private int GetFingerStateCount(FingerState state)
        {
            int count = 0;
            var iter = _fingerStateTable.GetEnumerator();
            while (iter.MoveNext())
            {
                if (iter.Current.Value == state)
                {
                    ++count;
                }
            }
            return count;
        }

        //按下操作处理
        private void FingerGestures_OnFingerDown(int fingerIndex, Vector2 fingerpos)
        {
            if (!CheckHitUI(fingerIndex))
            {
                //判断是否在摇杆的处理范围内
#if !USE_PC_MODEL
                if (_joystickHandler.EnableHoldDrag && _joystickHandler.JoystickArea.Contains(fingerpos))
                {
                    _fingerStateTable[fingerIndex] = FingerState.HandleJoystick;
                    _joystickHandler.DoJoystickDragBegin(fingerpos, fingerIndex);
                }
                else
#endif
                {
                    _fingerStateTable[fingerIndex] = FingerState.CheckSpace;
                }
                if (MainFunctionSystem.MainMenuIsShowed && GameCenter.MapLogicSwitch.IsCopyMap)
                {
                    GameCenter.PushFixEvent(LogicEventDefine.EID_EVENT_CLOSE_MAINMENU);
                }
            }
            else
            {
                _fingerStateTable.Remove(fingerIndex);
            }
            GameCenter.PushFixEvent(LogicEventDefine.EID_EVENT_ON_FINGER_DOWN);

        }

        //抬起的操作处理
        private void FingerGestures_OnFingerUP(int fingerIndex, Vector2 fingerpos, float time)
        {
            if (!_fingerStateTable.ContainsKey(fingerIndex))
                return;

            var state = _fingerStateTable[fingerIndex];

            if(state == FingerState.HandleJoystick)
            {
#if !USE_PC_MODEL
                _joystickHandler.DoJoystickDragEnd();
#endif
            }
            else if(state == FingerState.MoveOnSpace)
            {
                _cameraAdjustHandler.OnEndCameraYawMultiTouch(fingerIndex);
            }
            //判断是否点击了UI上的空白处
            else if (state == FingerState.CheckSpace)
            {
#if USE_PC_MODEL
                if(Input.GetMouseButtonUp(0))
                {
                    _hitHandler.OnHit(fingerpos);
                    GameCenter.PushFixEvent(LogicEventDefine.EID_EVENT_ON_HIT_SCENE, fingerpos);
                }
#else
                _hitHandler.OnHit(fingerpos);
                GameCenter.PushFixEvent(LogicEventDefine.EID_EVENT_ON_HIT_SCENE, fingerpos);
#endif

            }
            _fingerStateTable.Remove(fingerIndex);
        }

        //手指按下开始移动
        private void FingerGestures_OnMoveBegin(int fingerIndex, Vector2 fingerPos)
        {
            if (!_fingerStateTable.ContainsKey(fingerIndex))
                return;

            var state = _fingerStateTable[fingerIndex];
            if (state == FingerState.CheckSpace || state == FingerState.MoveOnSpace)
            {
                //只有一个点击空白处的移动才会处理摄像机移动
                var count = GetFingerStateCount(FingerState.CheckSpace) + GetFingerStateCount(FingerState.MoveOnSpace);
                if (count <= 1)
                {
                    _cameraAdjustHandler.OnStartCameraYawMultiTouch(fingerIndex, fingerPos);
                }
                _fingerStateTable[fingerIndex] = FingerState.MoveOnSpace;
            }
        }
        //手指按下移动中
        private void FingerGestures_OnMove(int fingerIndex, Vector2 fingerPos)
        {
            if (!_fingerStateTable.ContainsKey(fingerIndex))
                return;

            var state = _fingerStateTable[fingerIndex];
            if (state == FingerState.HandleJoystick)
            {
#if !USE_PC_MODEL
                //判断是否正在处理摇杆
                _joystickHandler.DoJoystickDraging(fingerPos);
#endif
            }
            else if (state == FingerState.MoveOnSpace )
            {
                var count = GetFingerStateCount(FingerState.CheckSpace) + GetFingerStateCount(FingerState.MoveOnSpace);
                if (count <= 1)
                {
                    _cameraAdjustHandler.OnUpdateCameraYawMultiTouch(fingerIndex, fingerPos);
                    _joystickHandler.OnCameraYawChanged();
                }
            }
        }

        ////手指按下移动结束
        private void FingerGestures_OnMoveEnd(int fingerIndex, Vector2 fingerPos)
        {
      
        }

        //两个手指进行捏或者划操作 -- 开始
        private void FingerGestures_OnPinchBegin(Vector2 fingerPos1, Vector2 fingerPos2)
        {
            //如果正在操作摇杆，就无效
            if (GetFingerStateCount(FingerState.HandleJoystick) > 0)
                return;
            if (!_fingerStateTable.ContainsKey(0))
                return;
            if (!_fingerStateTable.ContainsKey(1))
                return;

            var state0 = _fingerStateTable[0];
            var state1 = _fingerStateTable[1];
            if ((state0 == FingerState.CheckSpace || state0 == FingerState.MoveOnSpace) &&
                (state1 == FingerState.CheckSpace || state1 == FingerState.MoveOnSpace))
            {
                _cameraAdjustHandler.OnStartCameraDistanceAdjust(fingerPos1, fingerPos2);
            }
        }
        //两个手指进行捏或者划操作 -- 移动
        private void FingerGestures_OnPinchMove(Vector2 fingerPos1, Vector2 fingerPos2, float delta)
        {
            //如果正在操作摇杆，就无效
            if (GetFingerStateCount(FingerState.HandleJoystick) > 0)
                return;
            if (!_fingerStateTable.ContainsKey(0))
                return;
            if (!_fingerStateTable.ContainsKey(1))
                return;

            var state0 = _fingerStateTable[0];
            var state1 = _fingerStateTable[1];

            if ((state0 == FingerState.CheckSpace || state0 == FingerState.MoveOnSpace) &&
                (state1 == FingerState.CheckSpace || state1 == FingerState.MoveOnSpace))
            {
                _cameraAdjustHandler.OnUpdateCameraDistanceAdjust(fingerPos1, fingerPos2);
            }
        }
        //两个手指进行捏或者划操作 -- 结束
        private void FingerGestures_OnPinchEnd(Vector2 fingerPos1, Vector2 fingerPos2)
        {
            _cameraAdjustHandler.OnEndCameraDistanceAdjust();                                        // do Dis adjust
        }
#endregion

#region//私有工具方法
        //判断是否点击的是UI界面
        private bool CheckHitUI(int touchID)
        {
            return _checkHitUI.IsHitUI(touchID);
        }

        private void OnFormOpen(object obj,object sender=null)
        {
            var uiname = obj as string;
            if (string.IsNullOrEmpty(uiname))
                return;
            if(_joystickHandler.Draging)
            {
                if (_checkHitUI.IsHitUI(_joystickHandler.CurTouchID, uiname))
                {
                    CanelAllInput();
                }
            }
        }
        private void OnCanelMianHandle(object obj,object sender=null)
        {
            CanelAllInput();
        }
#endregion

#region //私有类,枚举定义
        //点击状态
        private enum FingerState
        {
            HandleJoystick,
            CheckSpace,
            MoveOnSpace,
        }
#endregion

    }
}