using RichCreator.Models;
using RichCreator.Utility;
using RichCreator.Utility.Dnf;
using RichCreator.Utility.InputControl;
using RichCreator.Utility.Maps;
using RichCreator.Utility.Skills;
using RichCreator.Utility.Structs;
using RichCreator.Utility.Utilitys;
using System;
using System.Collections.Generic;
using System.Threading;


namespace RichCreator.Dnf
{
    /// <summary>
    /// DNF角色
    /// </summary>
    public class DnfRole
    {
        private const Int32 PaddingLeft = 140;//左边框内边距
        private const Int32 PaddingRight = 140;//右边框内边距

        /// <summary>
        /// 角色脚部距色块中央的偏移
        /// </summary>
        public static readonly ZTPoint RoleFootOffset = new ZTPoint(0, 143);

        /// <summary>
        /// 角色身体中间距色块中央的偏移
        /// </summary>
        public static readonly ZTPoint RoleHalfOffset = new ZTPoint(0, 88);
        
        public DnfRole(ZTRectangle gameRect)
        {
            this.gameRect = gameRect;
            speed = SpeedProvider.Define;
            moveCancelToken = new CancellationTokenSource();
        }

        private SpeedProvider speed;//速度
        private HouseInfo house;//所在房间
        private ZTRectangle gameRect = ZTRectangle.Empty;
        public MoveIntent movingIntent = MoveIntent.AttackMove;//移动意图
        private CancellationTokenSource moveCancelToken;//移动取消令牌

        private Int32 findRoleDir = 0;//寻找角色行走的方向
        private DateTime findRoleMoveTimeout = DateTime.MinValue;//方向移动过期时间
        

        /// <summary>
        /// 角色色块位置
        /// </summary>
        public ZTPoint RoleCBPosition { get; private set; }

        /// <summary>
        /// 角色脚部位置
        /// </summary>
        public ZTPoint Position
        {
            get
            {
                return CBToFootPosition(RoleCBPosition);
            }
        }

        /// <summary>
        /// 身体中间位置
        /// </summary>
        public ZTPoint HalfPosition
        {
            get
            {
                return CBToHalfPosition(RoleCBPosition);
            }
        }

        /// <summary>
        /// 按下的键,0:横向，1：纵向
        /// </summary>
        private HIDCode[] pressKeys = new HIDCode[] { HIDCode.NoEvent, HIDCode.NoEvent };//当前按键
        private bool isRun = false;//是否奔跑

        /// <summary>
        /// 设置当前房间信息
        /// </summary>
        /// <param name="house"></param>
        public void SetHouse(HouseInfo house)
        {
            this.house = house;
            toNextGate = true;
        }

        /// <summary>
        /// 设置当前角色速度
        /// </summary>
        /// <param name="speed"></param>
        public void SetSpeed(Int32 speed)
        {
            this.speed = new SpeedProvider(speed);
        }

        /// <summary>
        /// 更新位置
        /// </summary>
        /// <param name="roleCBPosition"></param>
        public void UpdatePosition(ZTPoint roleCBPosition)
        {
            this.RoleCBPosition = roleCBPosition;
        }

        private bool isMoving = false;
        /// <summary>
        /// 是否移动中
        /// </summary>
        public bool IsMoving
        {
            get
            {
                return isMoving;
                //return pressKeys[0] != HIDCode.NoEvent || pressKeys[1] != HIDCode.NoEvent;
            }
        }

        /// <summary>
        /// 是否指定移动行为
        /// </summary>
        /// <param name="intent"></param>
        /// <returns></returns>
        public bool IsMoveIntent(MoveIntent intent)
        {
            if (IsMoving && movingIntent == intent)
            {
                return true;
            }
            return false;
        }

        /// <summary>
        /// 攻击移动至
        /// </summary>
        /// <param name="skillReleasePoint"></param>
        public void AttackMove(ZTPoint skillReleasePoint, ParametersPoint screenLocation)
        {
            //屏幕坐标转地图坐标
            ZTPoint start = this.house.ScreenToMapCoordinate(this.Position, screenLocation);
            ZTPoint end = this.house.ScreenToMapCoordinate(DnfRole.HalfToFootPosition(skillReleasePoint), screenLocation);
            List<ZTPoint> paths = this.house.FindPath(start, end);
            this.movingIntent = MoveIntent.AttackMove;
            isMoving = true;
            ThreadPool.QueueUserWorkItem((obj) =>
            {
                this.MovePaths(start, paths, this.moveCancelToken.Token,"attack move");
            }, null);
        }

        /// <summary>
        /// 查找主角移动
        /// </summary>
        /// <param name="moveDistance"></param>
        public void FindRoleMove()
        {
            if (DateTime.Now >= findRoleMoveTimeout)
            {
                //转换方向
                findRoleDir++;
                ZTSize distance = ZTSize.Empty;
                switch (findRoleDir % 4)
                {
                    case 0:
                        //右
                        distance = new ZTSize(SpeedProvider.RandomMoveDistance, 0);
                        break;
                    case 1:
                        //下
                        distance = new ZTSize(0,SpeedProvider.RandomMoveDistance);
                        break;
                    case 2:
                        //左
                        distance = new ZTSize(-SpeedProvider.RandomMoveDistance, 0);
                        break;
                    case 3:
                        //上
                        distance = new ZTSize(0,-SpeedProvider.RandomMoveDistance);
                        break;
                }

                movingIntent = MoveIntent.FindRoleMove;
                isMoving = true;
                ThreadPool.QueueUserWorkItem((state) => {
                    CancellationToken ctoken = (CancellationToken)state;
                    this.SyncMoveKeyPress(distance);
                    if (!ctoken.IsCancellationRequested)
                    {
                        //如果没有取消则停止
                        StopMove("find role mvoe");
                    }
                }, this.moveCancelToken.Token);

            }

            
        }

        /// <summary>
        /// 进门移动
        /// </summary>
        public void EntryDoorMove(ZTPoint doorScreenPosition, ParametersPoint screenLocation, Direction doorDirect)
        {
            //先到进门点
            ZTPoint roleMapPoint = this.house.ScreenToMapCoordinate(this.Position, screenLocation);
            ZTPoint nextGatePoint = this.house.GetNextGatePoint(doorDirect);
            List<ZTPoint> paths = this.house.FindPath(roleMapPoint, DnfRole.HalfToFootPosition(nextGatePoint));

            //再到门后50像素
            ZTPoint dp = this.house.ScreenToMapCoordinate(doorScreenPosition, screenLocation);
            ZTPoint doorPoint = DnfRole.HalfToFootPosition(dp);
            switch (doorDirect)
            {
                case Direction.Up:
                    doorPoint = doorPoint.Add(0, -50);
                    break;
                case Direction.Right:
                    doorPoint = doorPoint.Add(50, 0);
                    break;
                case Direction.Bottom:
                    doorPoint = doorPoint.Add(0, 50);
                    break;
                case Direction.Left:
                    doorPoint = doorPoint.Add(-50, 0);
                    break;
            }
            paths.Add(doorPoint);
            this.movingIntent = MoveIntent.EntryDoor;
            isMoving = true;
            this.MovePaths(roleMapPoint, paths, this.moveCancelToken.Token,"entry move");
        }

        private bool toNextGate = true;
        private Int32 nextGate = 0;
        /// <summary>
        /// 移至巡逻点
        /// </summary>
        public void LoopMove(ParametersPoint screenLocation)
        {
            ZTPoint start = ZTPoint.Empty, end = ZTPoint.Empty;
            ZTPoint halfMapPosition= this.house.ScreenToMapCoordinate(this.HalfPosition, screenLocation); 
            ZTPoint footMapPosition= this.house.ScreenToMapCoordinate(this.Position, screenLocation); 

            if (toNextGate)
            {
                //判断当前是否进门点
                ZTPoint nextGatePoint=this.house.HousePathInfo.NextGates[nextGate].Point;
                ZTRectangle nextGateRect = new ZTRectangle(nextGatePoint.X - 20, nextGatePoint.Y - 20, nextGatePoint.X + 20, nextGatePoint.Y + 20);
                if (GeoHelper.IsInRect(halfMapPosition, nextGateRect))
                {
                    nextGate++;
                    nextGate = nextGate % this.house.HousePathInfo.NextGates.Count;
                    toNextGate = false;
                }

            }
            else
            {
                //判断当前是否在巡逻点
                ZTPoint loopPoint = this.house.HousePathInfo.LoopPoint;
                ZTRectangle loopRect = new ZTRectangle(loopPoint.X - 20, loopPoint.Y - 20, loopPoint.X + 20, loopPoint.Y + 20);
                if (GeoHelper.IsInRect(footMapPosition, loopRect))
                {
                    toNextGate = true;
                }
            }


            if (toNextGate)
            {
                //向进门点移动
                start = halfMapPosition;
                end=this.house.HousePathInfo.NextGates[nextGate].Point;
                G.Instance.InfoWriter($"nextgate->screen location:{screenLocation},start:{start},end:{end}");
            }
            else
            {
                //向巡逻点移动
                start = footMapPosition;
                end= this.house.HousePathInfo.LoopPoint;
                G.Instance.InfoWriter($"loop:screen location:{screenLocation},start:{start},end:{end}");
            }

            List<ZTPoint> paths = this.house.FindPath(start,end);
            this.movingIntent = MoveIntent.ToLoop;
            isMoving = true;
            ThreadPool.QueueUserWorkItem((obj) =>
            {
                this.MovePaths(start, paths, this.moveCancelToken.Token, "loop move");
            }, null);
        }

        /// <summary>
        /// 拾起物品移动
        /// </summary>
        public void PickupMove(ZTPoint screenThingPosition,ParametersPoint screenLocation)
        {
            //屏幕坐标转地图坐标
            ZTPoint start = this.house.ScreenToMapCoordinate(this.Position, screenLocation);
            ZTPoint end = this.house.ScreenToMapCoordinate(screenThingPosition, screenLocation);
            List<ZTPoint> paths = this.house.FindPath(start, end);
            this.movingIntent = MoveIntent.PickupMove;
            isMoving = true;
            //未被打断移动至色块后，拾取
            if (this.MovePaths(start, paths, this.moveCancelToken.Token,"pickup"))
            {
                G.Instance.InputControl.PressKey(RandomUtils.G(400, 500), HIDCode.X);
            }
        }

        /// <summary>
        /// 同步移动指定距离
        /// </summary>
        /// <param name="distance"></param>
        public void SyncMove(ZTPoint size)
        {
            ZTSize distance = new ZTSize(size.X, size.Y);
            isMoving = true;
            SyncMoveKeyPress(distance);
            StopMove("sync move");
        }

        /// <summary>
        /// 移动指定路径
        /// </summary>
        /// <param name="start"></param>
        /// <param name="paths"></param>
        /// <returns>true:完成移动，false:中间被打断</returns>
        private bool MovePaths(ZTPoint start, List<ZTPoint> paths, CancellationToken cancelToken,string from)
        {
            ZTPoint lastPoint = start;
            if (paths != null && paths.Count > 0)
            {
                for (int i = 0; i < paths.Count; i++)
                {
                    if (cancelToken.IsCancellationRequested)
                    {
                        break;
                    }
                    ZTPoint distance = paths[i].Sub(lastPoint);
                    this.SyncMoveKeyPress(new ZTSize(distance.X, distance.Y));
                    lastPoint = paths[i];
                }
            }

            if (!cancelToken.IsCancellationRequested)
            {
                //停止
                
                StopMove("move path,"+from);
                return true;
            }
            return false;
        }
        
        /// <summary>
        /// 同步移动指定距离的按键
        /// </summary>
        /// <param name="distance"></param>
        private void SyncMoveKeyPress(ZTSize distance)
        {
            HIDCode horizontal = HIDCode.NoEvent;
            HIDCode vertical = HIDCode.NoEvent;
            bool isRun = false;
            int runms, stepms;
            Int32 xsig = Math.Sign(distance.Width);
            Int32 ysig = Math.Sign(distance.Height);

            if (Math.Abs(distance.Width) >= speed.RunThresold)
            {
                isRun = true;
            }

            if (distance.Height > 0)
            {
                vertical = HIDCode.DownArrow;
            }

            if (distance.Height < 0)
            {
                vertical = HIDCode.UpArrow;
            }

            if (distance.Width > 0)
            {
                horizontal = HIDCode.RightArrow;
            }

            if (distance.Width < 0)
            {
                horizontal = HIDCode.LeftArrow;
            }

            PutDirectionKey(out stepms, out runms, horizontal, vertical, isRun);
            if (stepms > 0)
            {
                Int32 mdistance = (Int32)(stepms * speed.StepX);
                if (runms > 0)
                {
                    mdistance += (Int32)(runms * speed.RunX);
                }
                distance = new ZTSize(distance.Width - xsig * mdistance, distance.Height);
            }

            int ytime = (Int32)(Math.Abs(distance.Height) / speed.StepY);
            Int32 xtime = (Int32)(Math.Abs(distance.Width) / speed.StepX);
            if (isRun)
            {
                xtime = (Int32)(Math.Abs(distance.Width) / speed.RunX);
            }

            Int32 mintime = Math.Min(xtime, ytime);
            if (xtime <= 0)
            {
                mintime = ytime;
            }
            if (ytime <= 0)
            {
                mintime = xtime;
            }
            Thread.Sleep(mintime);

            xtime -= mintime;
            ytime -= mintime;
            if (xtime > 0)
            {
                PutDirectionKey(out stepms, out runms, horizontal, HIDCode.NoEvent, isRun);
                Thread.Sleep(xtime);
            }
            if (ytime > 0)
            {
                PutDirectionKey(out stepms, out runms, HIDCode.NoEvent, vertical, false);
                Thread.Sleep(ytime);
            }
        }


        /// <summary>
        /// 停止移动
        /// </summary>
        public void StopMove(string from)
        {
            if (IsMoving)
            {
                G.Instance.InfoWriter("stop move from:"+from);
                this.moveCancelToken.Cancel();
                this.moveCancelToken = new CancellationTokenSource();

                StateProvider.Instance.DirectionKey = "无";
                G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false);
                pressKeys[0] = HIDCode.NoEvent;
                pressKeys[1] = HIDCode.NoEvent;
                isMoving = false;
                isRun = false;
            }
        }

        /// <summary>
        /// 休眠
        /// </summary>
        /// <param name="millSecond"></param>
        public void Sleep(Int32 millSecond)
        {
            Thread.Sleep(millSecond);
        }

        /// <summary>
        /// 释放技能
        /// </summary>
        /// <param name="key"></param>
        public void ReleaseSkill(HIDCode key)
        {
            Int32 dur = RandomUtils.KeyPressDuration;
            G.Instance.InputControl.PressKey(dur, key);
            SkillInfo skill = SkillInfo.GetSkillInfo(key);
            if (skill != null)
            {
                Int32 subTime = (Int32)(skill.ReleaseWaitTime - dur);
                if (subTime > 0)
                {
                    Sleep(subTime);
                }
            }
        }

        #region 八方向移动
        /// <summary>
        /// 按下按键
        /// </summary>
        /// <param name="distance"></param>
        private void PutDirectionKey(ZTSize distance)
        {
            HIDCode horizontal = HIDCode.NoEvent;
            HIDCode vertical = HIDCode.NoEvent;
            bool isRun = false;
            if (distance.Width < 0)
            {
                horizontal = HIDCode.LeftArrow;
            }
            if (distance.Width > 0)
            {
                horizontal = HIDCode.RightArrow;
            }

            if (Math.Abs(distance.Width) >= speed.RunThresold)
            {
                isRun = true;
            }


            if (distance.Height < 0)
            {
                vertical = HIDCode.UpArrow;
            }
            if (distance.Height > 0)
            {
                vertical = HIDCode.DownArrow;
            }

            Int32 stepms, runms;
            PutDirectionKey(out stepms, out runms, horizontal, vertical, isRun);
        }

        /// <summary>
        /// 行走按键
        /// </summary>
        /// <param name="stepMS">已经步行ms</param>
        /// <param name="runMS">已经奔跑ms</param>
        /// <param name="horizontal">横向按键</param>
        /// <param name="vertical">纵向按键</param>
        /// <param name="isRun">是否奔跑</param>
        private void PutDirectionKey(out Int32 stepMS, out Int32 runMS, HIDCode horizontal, HIDCode vertical, bool isRun)
        {
            stepMS = 0;
            runMS = 0;
            if (horizontal == vertical)
            {
                return;
            }
            if (horizontal == pressKeys[0] && vertical == pressKeys[1])
            {
                return;
            }

            int keyCount = horizontal != HIDCode.NoEvent && vertical != HIDCode.NoEvent ? 2 : 1;
            Int32 tempwait = 0;
            if (isRun)
            {
                //跑
                if (!this.isRun || horizontal != pressKeys[0])
                {
                    //如果之前没有跑，或跑的方向不一样,则开始跑
                    G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false, horizontal);
                    tempwait = RandomUtils.KeyPressDuration;
                    stepMS += tempwait;
                    Thread.Sleep(tempwait);

                    G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false);
                    Thread.Sleep(RandomUtils.KeyPressDuration);
                    G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false, horizontal);
                    this.isRun = true;

                    if (keyCount == 2)
                    {
                        tempwait = RandomUtils.KeyPressDuration;
                        runMS += tempwait;
                        Thread.Sleep(tempwait);
                        G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false, horizontal, vertical);
                        //StateProvider.Instance.DirectionKey = "跑," + horizontal.ToString() + "," + vertical.ToString();
                    }
                    //else
                    //{
                    //    StateProvider.Instance.DirectionKey = "跑," + horizontal.ToString();
                    //}

                }
                else
                {
                    //奔跑方向不变
                    int afterKeyCount = pressKeys[0] != HIDCode.NoEvent && pressKeys[1] != HIDCode.NoEvent ? 2 : 1;
                    if (afterKeyCount != keyCount)
                    {
                        //如果跟原来按键数量不一样
                        if (keyCount == 1)
                        {
                            G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false, horizontal);
                            //StateProvider.Instance.DirectionKey = "走," + horizontal.ToString();
                        }
                        else
                        {
                            G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false, horizontal, vertical);
                            //StateProvider.Instance.DirectionKey = "走," + horizontal.ToString() + "," + vertical.ToString();
                        }

                    }

                }
            }
            else
            {
                //走
                if (keyCount == 1)
                {
                    G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false, horizontal != HIDCode.NoEvent ? horizontal : vertical);
                }
                else
                {
                    G.Instance.InputControl.PutDown(false, false, false, false, false, false, false, false, horizontal, vertical);
                }

            }

            pressKeys[0] = horizontal;
            pressKeys[1] = vertical;
        }

        /// <summary>
        /// 按钮是否变化
        /// </summary>
        /// <param name="pressKey"></param>
        /// <returns></returns>
        private bool IsChangeOfKey(HIDCode[] pressKey)
        {
            if (pressKey == null || pressKey.Length != 2)
            {
                return true;
            }

            if (pressKeys[0] == pressKey[0] && pressKeys[1] == pressKey[1])
            {
                return false;
            }
            return true;
        }
        #endregion



        #region role position convert
        /// <summary>
        /// 色块中央位置转为脚部位置
        /// </summary>
        /// <param name="cbPosition"></param>
        /// <returns></returns>
        public static ZTPoint CBToFootPosition(ZTPoint cbPosition)
        {
            return cbPosition.Add(RoleFootOffset);
        }

        /// <summary>
        /// 色块中央位置转为人物中间位置
        /// </summary>
        /// <param name="cbPosition"></param>
        /// <returns></returns>
        public static ZTPoint CBToHalfPosition(ZTPoint cbPosition)
        {
            return cbPosition.Add(RoleHalfOffset);
        }

        /// <summary>
        /// 脚部坐标到身份中央坐标转换
        /// </summary>
        /// <param name="footPosition"></param>
        /// <returns></returns>
        public static ZTPoint FootToHalfPosition(ZTPoint footPosition)
        {
            return footPosition.Sub(RoleFootOffset).Add(RoleHalfOffset);
        }

        /// <summary>
        /// 身体中央坐标到脚部坐标转换
        /// </summary>
        /// <param name="halfPosition"></param>
        /// <returns></returns>
        public static ZTPoint HalfToFootPosition(ZTPoint halfPosition)
        {
            return halfPosition.Sub(RoleHalfOffset).Add(RoleFootOffset);
        }
        #endregion


    }
}