using Assets.Scenes.Ride.Scripts.Model.CyclingModels;
using Assets.Scripts.Apis.Models;
using GeoJSON.Net.Geometry;
using Mapbox.Unity.Map;
using Mapbox.Utils;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TurfCS;
using UnityEngine;

namespace Assets.Scenes.Ride.Scripts
{
    public abstract class AbstractPlayer: MonoBehaviour
    {
		[Header("Character")]
		[SerializeField]
		GameObject character;
		[SerializeField]
		Animator characterAnimator;
		[SerializeField]
		AbstractMap map;
		//AbstractMap map;

		#region 动画控制参数
		Vector3 nextPos;
		Vector3 prePos = Vector3.zero;
		float timer = 1.0f;//计时器
		#endregion

		#region 选手骑行数据
		protected Vector2d nextlatlong; //下一个点的坐标
		protected bool isStart;//开始或者暂停
		protected bool isQuit;//true 中途退出 或者到达终点
		protected bool isMajor;//是否是主人公
		protected MapDataModel mapData;
		protected int userId;
		protected DateTime startTime;//开始骑行时间
		protected DateTime endTime;//结束骑行时间
		protected double weight;//体重
		protected double bicycleWeight;//车重
		protected double speed;
		protected double power;
		protected double elevation;
		protected double cadance;
		protected int heartRate;
		protected int ticks;
		protected double totalDistance;
		protected double currentSlope;
		protected double nextSlope;
		protected double nextSlopeDistance;
		protected double distance;
		protected double currentSlopeDistance;
		protected double lastEndDistance;

		public int UserId { get => userId; }
		public bool IsStart { get => isStart; }
		public double Speed { get => speed; }
		public double Power { get => power; }
		public double Cadance { get => cadance; }
		public double HeartRate { get => heartRate; }
		public int TotalTicks { get => ticks; }
		public double TotalDistance { get => totalDistance; }
		public double CurrentSlope { get => currentSlope; }
		public double NextSlope { get => nextSlope; }
		public double NextSlopeDistance { get => nextSlopeDistance; }
		public double CurrentSlopeDistance { get => currentSlopeDistance; }
		public double Elevation { get => elevation; }
		public double LastEndDistance { get => lastEndDistance; }
		public Vector2d Nextlatlong { get => nextlatlong; }
		#endregion

		#region 游戏状态控制
		//开始骑行
		public void SetStart()
		{
			isStart = true;
			startTime = DateTime.Now;
		}
		//继续骑行
		public void SetContinue()
		{
			isStart = true;
		}
		//暂停骑行
		public void SetPause()
		{
			isStart = false;
			characterAnimator.SetBool("IsRide", false);
		}
		//退出或者完成骑行
		public void SetQuit()
		{
			isQuit = true;
			endTime.AddSeconds(ticks);//计算结束时间
		}
		#endregion

		void Start()
		{
			Init();
		}

		void Update()
		{
			Excute();
		}
        private void FixedUpdate()
        {
	
		}
        #region 骑行逻辑
        //初始化骑行数据
        protected CyclingController mainController;
		protected BaseCycling cyclingExcutor;
		protected virtual void Init()
		{
			characterAnimator = GetComponentInChildren<Animator>();
			mainController = transform.parent.GetComponent<CyclingController>();
			//map = FindObjectOfType<AbstractMap>();
			mapData = mainController.GetMapData();//获取路书信息
			nextlatlong = new Vector2d(mapData.List[0].Point[0], mapData.List[0].Point[1]);//初始化人物位置 TODO加上之前骑行距离
			cyclingExcutor = mainController.cyclingController;
		}

		protected virtual void Excute()
		{
			//CamControl();
			timer -= Time.deltaTime;
			if (timer <= 0)//定时器 一秒执行一次
			{
				Run();
				timer = 1.0f;
			}
		}
		//骑行中
		protected virtual void Run()
		{
			ComputeNextSlope();//计算下一个坡度相关数据
			if (isStart)
			{
				ticks++;
				Compute();//接受蓝牙设备数据计算
				characterAnimator.SetBool("IsRide", false);//初始化动画状态
				if (totalDistance <= mapData.TotalDistance)
				{
					//数据处理
					nextlatlong = Along(totalDistance);//下一个坐标
					nextPos = map.GeoToWorldPosition(nextlatlong);//下一个点
					nextPos.y += 0.5f;//提高y轴让人物站在地图上面
					prePos = transform.localPosition;//当前点
					thisRotation = transform.localRotation;
					//动画控制					
					if (distance > 0)
					{
						characterAnimator.SetBool("IsRide", true);//开始移动动画
						
						StartCoroutine(MoveTo());//移动
						//transform.localPosition = nextPos;
					}
				}
				else
				{
					totalDistance = mapData.TotalDistance;
					characterAnimator.SetBool("ReachEnd", true);//到达终点
					//Task.Run(() => {  });//异步上传数据
					Upload();
					isStart = false;
					isQuit = true;
				}
            }
		}
		//计算功率 速度 当前骑行总里程（M）心率 踏频 等
		protected virtual void Compute()
		{
			//power = 900;//功率
			//speed = Helper.CalculateSpeed(elevation, 0, power, 65, 7);
			//distance = Math.Round(speed / 3600, 6);
			//totalDistance += distance;
		}
		//当前用户调用来上传骑行记录
		protected virtual void Upload()
		{
		}
		#endregion

		#region 工具类

		protected string CaptureCamera(Camera camera, Rect rect)
		{
			// 创建一个RenderTexture对象  
			RenderTexture rt = new RenderTexture((int)rect.width, (int)rect.height, 0);
			// 临时设置相关相机的targetTexture为rt, 并手动渲染相关相机  
			camera.targetTexture = rt;
			camera.Render();
			//ps: --- 如果这样加上第二个相机，可以实现只截图某几个指定的相机一起看到的图像。  
			//ps: camera2.targetTexture = rt;  
			//ps: camera2.Render();  
			//ps: -------------------------------------------------------------------  

			// 激活这个rt, 并从中中读取像素。  
			RenderTexture.active = rt;
			Texture2D screenShot = new Texture2D((int)rect.width, (int)rect.height, TextureFormat.RGB24, false);
			screenShot.ReadPixels(rect, 0, 0);// 注：这个时候，它是从RenderTexture.active中读取像素  
			screenShot.Apply();

			// 重置相关参数，以使用camera继续在屏幕上显示  
			camera.targetTexture = null;
			//ps: camera2.targetTexture = null;  
			RenderTexture.active = null; // JC: added to avoid errors  
			GameObject.Destroy(rt);
			// 最后将这些纹理数据，成一个图片文件  
			byte[] bytes = screenShot.EncodeToJPG();
            string filename = Application.dataPath + "/"+Guid.NewGuid().ToString() +".jpg";
            System.IO.File.WriteAllBytes(filename, bytes);
            //Debug.Log(string.Format("截屏了一张照片: {0}", filename));
            return filename;
		}

		public int CurrentIndex;
		//当前距离所在的海拔/坡度/距离 下一个点的坡度以及剩余距离
		void ComputeNextSlope()
		{
			double sumDistance = 0;
			var pointList = mapData.List;
			int index = 0;
			for (int i = 0; i < pointList.Count; i++)
			{
				sumDistance += pointList[i].Distance;
				if (totalDistance * 1000 <= sumDistance)
				{
					index = i;
					break;
				}
			}
			//计算当前海拔和坡度
			elevation = pointList[index].Elevation;
			currentSlope = pointList[index].Grade;
			//计算下一个点的坡度和距离
			int nextIndex = index == pointList.Count - 1 ? index : index + 1;
			CurrentIndex = nextIndex;
			nextSlope = pointList[nextIndex].Grade;
			nextSlopeDistance = sumDistance - totalDistance * 1000;
			currentSlopeDistance = totalDistance * 1000 - (sumDistance - pointList[index].Distance);
		}
		//根据距离计算坐标
		Vector2d Along(double endDistance)
		{
			if (mapData != null)
			{
				var list = mapData.List.Select(p => new GeoJSON.Net.Geometry.GeographicPosition(p.Point[0], p.Point[1]));
				LineString lineString = new LineString(list);
				var pt1 = Turf.Along(lineString, endDistance);
				var ll = ((GeographicPosition)((GeoJSON.Net.Geometry.Point)pt1.Geometry).Coordinates);
				return new Vector2d(ll.Latitude, ll.Longitude);
			}
			return nextlatlong;
		}
		#endregion

		#region 人物移动与转向控制

		Quaternion thisRotation;
		IEnumerator LookAtNextPos()
		{
			Quaternion neededRotation = Quaternion.LookRotation(prePos - nextPos);
			//Quaternion thisRotation = character.transform.localRotation;

			float t = 0;
			while (t < 1.0f)
			{
				t += Time.deltaTime / 0.5f;
				var rotationValue = Quaternion.Slerp(thisRotation, neededRotation, t);
				character.transform.rotation = Quaternion.Euler(0, rotationValue.eulerAngles.y, 0);
				yield return null;
			}
		}
		Vector3 deltaPos = Vector3.zero;
		Vector3 previousPos = Vector3.zero;
		void CamControl()
		{
			deltaPos = transform.position - previousPos;
			deltaPos.y = 0;
			Camera.main.transform.position = Vector3.Lerp(Camera.main.transform.position, Camera.main.transform.position + deltaPos, Time.time);
			previousPos = transform.position;
		}
		//人物移动控制
		IEnumerator MoveTo()
		{
			StartCoroutine(LookAtNextPos());//转向
			//让人物移动分点增加动画的流畅度
			float t = 0;
			while (t < 1)
			{
				t += Time.deltaTime;
				Vector3 v = Vector3.Lerp(prePos, nextPos, t);
				Vector3 nextPosition = new Vector3((float)Math.Round(v.x, 2), (float)Math.Round(v.y, 2), (float)Math.Round(v.z, 2));
				if (!nextPosition.Equals(transform.localPosition))
				{
					transform.localPosition = nextPosition;
					//Camera.main.transform.localPosition = nextPosition;
				}
				
				//控制海拔图的位置
				yield return null;
			}
		}
		#endregion
	}
}