using System;
using DG.Tweening;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Random = UnityEngine.Random;

public interface IUpdate
{
    public void Update() { }
}

public abstract class Move
{
    protected List<SpineAnimationLoader> _gos;
    protected List<SpineAnimationLoader> _setList = new List<SpineAnimationLoader>();//已经设置好坐标的靶子

    protected static int RamdomNum = 200;
    /// <summary>
    /// 是否和已生成的重叠
    /// </summary>
    /// <param name="target"></param>
    /// <returns></returns>
    protected bool CheckOverLap(SpineAnimationLoader target, Vector2 newPos, MoveType movetype = MoveType.Stay, int count = 0)
    {
        foreach (var item in _setList)
        {
            var distanceMin = item.Radius() + target.Radius();
            if (distanceMin >= Vector2.Distance(item.transform.localPosition, newPos))
            {
                //有重叠的
                return true;
            }
            if (movetype == MoveType.LeftToRight || movetype == MoveType.RightToLeft)
            {
                if (distanceMin >= Math.Abs(item.transform.localPosition.y - newPos.y))
                {
                    return true;
                }
            }
            else if (movetype == MoveType.RelativeHor)//水平相对运动
            {
                if (count > 2)
                {
                    //X处于同一方向的话 Y方向不能重叠
                    if ((item.transform.localPosition.x < 0 && newPos.x < 0) || (item.transform.localPosition.x > 0 && newPos.x > 0))
                    {
                        if (distanceMin >= Math.Abs(item.transform.localPosition.y - newPos.y))
                        {
                            return true;
                        }
                    }
                }
                else
                {
                    //只有两个的话 对向也不能重叠
                    if (distanceMin >= Math.Abs(item.transform.localPosition.y - newPos.y))
                    {
                        return true;
                    }
                }
            }
            else if (movetype == MoveType.RelativeVet)
            {
                if (count > 2)
                {
                    //Y处于同一方向的话 X方向不能重叠
                    if ((item.transform.localPosition.y < 0 && newPos.y < 0) || (item.transform.localPosition.y > 0 && newPos.y > 0))
                    {
                        if (distanceMin >= Math.Abs(item.transform.localPosition.x - newPos.x))
                        {
                            return true;
                        }
                    }
                }
                else
                {
                    //只有两个的话 对向也不能重叠
                    if (distanceMin >= Math.Abs(item.transform.localPosition.x - newPos.x))
                    {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    protected Func<SpineAnimationLoader, Vector2, MoveType, bool, bool> IsUIBlock = (SpineAnimationLoader target, Vector2 pos, MoveType moveType, bool log) =>
    {
        var radius = target.Radius();

        var canvasSize = GeneratingTarget.gm.GetCanvasSize();

        float halfW = canvasSize.x / 2;
        float halfH = canvasSize.y / 2;

        var paddingLeft = Math.Abs(pos.x - radius - (-halfW));
        var paddingTop = Math.Abs(halfH - (pos.y + radius));
        var paddingRight = Math.Abs(halfW - (pos.x + radius));
        var paddingDown = Math.Abs(pos.y - radius - (-halfH));

        if (log)
            Debug.Log($"pos={pos}   paddingLeft={paddingLeft}  paddingTop={paddingTop}  paddingRight={paddingRight}  paddingDown={paddingDown}");

        //if(moveType == MoveType.Stay || moveType.)
        //需要对称屏蔽

        if (moveType == MoveType.RightToLeft)
        {
            //屏蔽整个上方
            //上方
            if (paddingTop <= 164)
                return true;

            //下  右方
            if (paddingDown <= 108 && paddingRight <= 134)
                return true;
        }
        else if (moveType == MoveType.LeftToRight)
        {
            //上方 左方
            if (paddingTop <= 164 && paddingLeft <= 372)
                return true;
            //下  右方
            if (paddingDown <= 108 && paddingRight <= 134)
                return true;
        }
        else if (moveType == MoveType.RelativeHor)
        {
            //屏蔽整个上方
            //上方
            if (paddingTop <= 164)
                return true;

            //下  右方
            if (paddingDown <= 108 && paddingRight <= 134)
                return true;
        }
        else if (moveType == MoveType.RelativeVet)
        {
            //屏蔽整个左方
            //左方
            if (paddingLeft <= 372)
                return true;
        }
        else if(moveType == MoveType.Diagonal)
        {

        }
        else
        {
            //上方 左方
            if (paddingTop <= 164 && paddingLeft <= 372)
                return true;
            //下  右方
            if (paddingDown <= 108 && paddingRight <= 134)
                return true;
        }
        //左 右 133
        if (paddingRight <= 133 || paddingLeft <= 133)
            return true;

        return false;
    };

    public void SetGo(List<SpineAnimationLoader> gos)
    {
        _setList.Clear();
        _gos = gos;
        InitPos(gos);
    }

    public abstract void InitPos(List<SpineAnimationLoader> gos);

    public int ScreenWidth()
    {
        var ScreenWidth = Screen.width;
        return ScreenWidth;
    }

    public int ScreenHeight()
    {
        var ScreenHeight = Screen.height;
        return ScreenHeight;
    }

}


/// <summary>
/// 随机位置静止
/// </summary>
public class Stay : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        float ScaleX(float value)
        {
            var width = ScreenWidth();
            var scale = 1280f / (float)width;
            value *= scale;
            return value;
        }

        //随机不重叠的位置
        for (int i = 0; i < gos.Count; i++)
        {
            var randomPos = gos[i].GetRandomPos();
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.Stay, false) || (CheckOverLap(gos[i], randomPos) && count > 0))
            {
                randomPos = gos[i].GetRandomPos();
                count--;
                if (count <= 0)//找不到就穷举
                {
                    var canvasSize = GeneratingTarget.gm.GetCanvasSize();
                    var HWidth = canvasSize.x * 0.5f;
                    var HHeight = canvasSize.y * 0.5f;
                    var canUse = false;
                    var newPos = Vector2.zero;
                    for (int xPos = 0; xPos <= HWidth * 0.7f; xPos += 20)
                    {
                        for (int yPos = 0; yPos < HHeight * 0.7f; yPos += 15)
                        {
                            newPos.x = xPos; newPos.y = yPos;
                            if (!IsUIBlock(gos[i], newPos, MoveType.Stay, false) && !CheckOverLap(gos[i], newPos))
                            {
                                canUse = true;
                                break;
                            }
                            newPos.x = xPos; newPos.y = -yPos;
                            if (!IsUIBlock(gos[i], newPos, MoveType.Stay, false) && !CheckOverLap(gos[i], newPos))
                            {
                                canUse = true;
                                break;
                            }
                            newPos.x = -xPos; newPos.y = yPos;
                            if (!IsUIBlock(gos[i], newPos, MoveType.Stay, false) && !CheckOverLap(gos[i], newPos))
                            {
                                canUse = true;
                                break;
                            }
                            newPos.x = -xPos; newPos.y = -yPos;
                            if (!IsUIBlock(gos[i], newPos, MoveType.Stay, false) && !CheckOverLap(gos[i], newPos))
                            {
                                canUse = true;
                                break;
                            }
                        }
                        if (canUse)
                        {
                            randomPos = newPos;
                            break;
                        }
                    }
                }
            }
            // Debug.Log($"i ={i}  IsUIBlock={IsUIBlock(gos[i], randomPos, true)}  CheckOverLap={CheckOverLap(gos[i], randomPos)}  count={count}");
            gos[i].SetPos(randomPos);
            _setList.Add(gos[i]);
        }
    }
}

/// <summary>
/// 左右水平移动
/// </summary>
public class LeftToRight : Move, IUpdate
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //随机屏幕左侧位置
        for (int i = 0; i < gos.Count; i++)
        {
            var randomPos = gos[i].GetRandomPos(PosType.Left);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.LeftToRight, false) || CheckOverLap(gos[i], randomPos, MoveType.LeftToRight) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(PosType.Left);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            //目标点是横向对称的位置
            go.transform.DOLocalMoveX(-go.transform.localPosition.x, go.GetDuration()).SetEase(Ease.InSine);
            _setList.Add(go);
        }
    }
}

/// <summary>
/// 右左水平移动
/// </summary>
public class RightToLeft : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //随机屏幕右侧位置
        for (int i = 0; i < gos.Count; i++)
        {
            var randomPos = gos[i].GetRandomPos(PosType.Right);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.RightToLeft, false) || CheckOverLap(gos[i], randomPos, MoveType.RightToLeft) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(PosType.RightDown);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            //目标点是横向对称的位置
            go.transform.DOLocalMoveX(-go.transform.localPosition.x, go.GetDuration()).SetEase(Ease.InSine);
            _setList.Add(go);
        }
    }
}

/// <summary>
/// 相对水平移动
/// </summary>
public class RelativeHor : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //随机屏幕左右侧位置  一左一右
        for (int i = 0; i < gos.Count; i++)
        {
            var tempPos = i % 2 == 0 ? PosType.LeftDown : PosType.RightDown;
            var randomPos = gos[i].GetRandomPos(tempPos, 0.3f);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.RelativeHor, false) || CheckOverLap(gos[i], randomPos, MoveType.RelativeHor, gos.Count) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(tempPos, 0.3f);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            //目标点是横向对称的位置
            go.transform.DOLocalMoveX(-go.transform.localPosition.x, go.GetDuration()).SetEase(Ease.InSine);
            _setList.Add(go);
        }
    }
}

/// <summary>
/// 相对垂直移动
/// </summary>
public class RelativeVet : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //随机屏幕上下侧位置  一上一下
        for (int i = 0; i < gos.Count; i++)
        {
            var tempPos = i % 2 == 0 ? PosType.Top : PosType.Down;
            var randomPos = gos[i].GetRandomPos(tempPos);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.RelativeVet, false) || CheckOverLap(gos[i], randomPos, MoveType.RelativeVet, gos.Count) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(tempPos);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            //目标点是纵向对称的位置
            go.transform.DOLocalMoveY(-go.transform.localPosition.y, go.GetDuration()).SetEase(Ease.InSine);
            _setList.Add(go);
        }
    }
}

/// <summary>
/// 同步斜向移动
/// </summary>
public class Diagonal : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //随机屏幕对角侧位置  一上一下
        var random = Random.Range(0, 1);
        var xRate = 0.25f;
        var yRate = 0.25f;
        for (int i = 0; i < gos.Count; i++)
        {
            var temp = i % 2 == 0;
            PosType posType;
            if (random == 0)
                posType = temp ? PosType.LeftTop : PosType.LeftDown;
            else
                posType = temp ? PosType.RightTop : PosType.RightDown;

            var randomPos = gos[i].GetRandomPos(posType, xRate, yRate);

            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.Diagonal, false) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(posType, xRate, yRate);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            //目标点是对角位置
            go.transform.DOLocalMoveY(-go.transform.localPosition.y, go.GetDuration());
            go.transform.DOLocalMoveX(-go.transform.localPosition.x, go.GetDuration());
            _setList.Add(go);
        }
    }
}

/// <summary>
/// 同步W型移动
/// </summary>
public class W : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //从左侧开始 一上一下 往右W轨迹运动
        for (int i = 0; i < gos.Count; i++)
        {
            var tempPos = i % 2 == 0 ? PosType.LeftTop : PosType.LeftDown;
            var randomPos = gos[i].GetRandomPos(tempPos, 0.25f, 0.25f);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.W, false) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(tempPos, 0.25f, 0.25f);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            _setList.Add(go);

            Vector3[] positions = new Vector3[5];
            positions[0] = new Vector3(go.transform.localPosition.x, go.transform.localPosition.y, 0);
            positions[4] = new Vector3(-positions[0].x, positions[0].y, 0);
            positions[2] = new Vector3(0, positions[0].y, 0);
            positions[1] = new Vector3(positions[0].x * 0.5f, -positions[0].y, 0);
            positions[3] = new Vector3(positions[0].x * -0.5f, -positions[0].y, 0);
            go.transform.DOLocalPath(positions, go.GetDuration(), PathType.CatmullRom).SetEase(Ease.Linear);
        }
    }
}
/// <summary>
/// 相对W型移动
/// </summary>
public class W2 : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        List<PosType> temp = new List<PosType>();
        //四个角落随机创建 W运动
        for (int i = 0; i < gos.Count; i++)
        {
            if (temp.Count <= 0)
            {
                temp.Add(PosType.LeftTop);
                temp.Add(PosType.LeftDown);
                temp.Add(PosType.RightDown);
                temp.Add(PosType.RightTop);
            }
            var random = Random.Range(0, temp.Count - 1);
            var tempPos = temp[random];
            temp.RemoveAt(random);

            var randomPos = gos[i].GetRandomPos(tempPos, 0.25f, 0.25f);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.W2, false) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(tempPos, 0.25f, 0.25f);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            _setList.Add(go);

            Vector3[] positions = new Vector3[5];
            positions[0] = new Vector3(go.transform.localPosition.x, go.transform.localPosition.y, 0);
            positions[4] = new Vector3(-positions[0].x, positions[0].y, 0);
            positions[2] = new Vector3(0, positions[0].y, 0);
            positions[1] = new Vector3(positions[0].x * 0.5f, -positions[0].y, 0);
            positions[3] = new Vector3(positions[0].x * -0.5f, -positions[0].y, 0);
            go.transform.DOLocalPath(positions, go.GetDuration(), PathType.CatmullRom).SetEase(Ease.Linear);
        }
    }
}
/// <summary>
/// 横排同步水平移动 垂直运动
/// </summary>
public class HOR : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //随机屏幕上下侧位置
        var random = Random.Range(0, 1);
        var tempPos = random == 0 ? PosType.Top : PosType.Down;
        for (int i = 0; i < gos.Count; i++)
        {
            var randomPos = gos[i].GetRandomPos(tempPos);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.HOR, false) || CheckOverLap(gos[i], randomPos) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(tempPos);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            //目标点是纵向
            go.transform.DOLocalMoveY(-go.transform.localPosition.y, go.GetDuration());
            _setList.Add(go);
        }
    }
}

/// <summary>
/// 垂直同步水平移动
/// </summary>
public class VET : Move
{
    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        //随机屏幕左右侧位置
        var random = Random.Range(0, 1);
        var tempPos = random == 0 ? PosType.Left : PosType.Right;
        for (int i = 0; i < gos.Count; i++)
        {
            var randomPos = gos[i].GetRandomPos(tempPos);
            int count = RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.VET, false) || CheckOverLap(gos[i], randomPos) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(tempPos);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            //目标点是横向
            go.transform.DOLocalMoveX(-go.transform.localPosition.x, go.GetDuration());
            _setList.Add(go);
        }
    }
}
/// <summary>
/// 旋转移动
/// </summary>
public class ROT : Move, IUpdate
{
    private float speed;

    public override void InitPos(List<SpineAnimationLoader> gos)
    {
        for (int i = 0; i < gos.Count; i++)
        {
            var randomPos = gos[i].GetRandomPos(PosType.Rotate);
            int count = 2 * RamdomNum;
            while (IsUIBlock(gos[i], randomPos, MoveType.ROT, false) || CheckOverLap(gos[i], randomPos) && count > 0)
            {
                randomPos = gos[i].GetRandomPos(PosType.Rotate);
                count--;
            }
            var go = gos[i];
            go.SetPos(randomPos);
            speed = 360f / go.GetDuration();
            _setList.Add(go);
        }
    }

    public void Update()
    {
        var center = new Vector3(ScreenWidth() * 0.5f, ScreenHeight() * 0.5f);
        foreach (var item in _setList)
        {
            if (!item.Equals(null))
            {
                var angle = speed * Time.deltaTime;
                item.rectTransform.Rotate(Vector3.forward, -angle);
                //center = Camera.main.ScreenToWorldPoint(new Vector3(center.x, center.y, 0));
                item.rectTransform.RotateAround(center, Vector3.forward, angle);
            }
        }
    }
}