using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Mapbox.Unity.Map;
using Mapbox.Utils;
using Mapbox.Unity.Utilities;
using System.Linq;


namespace Ride.Scripts
{
	public class PlayerController : MonoBehaviour
	{
		[Header("Character")]
		[SerializeField]
		GameObject character;
		[SerializeField]
		float characterSpeed;
		[SerializeField]
		Animator characterAnimator;

		//[Header("References")]
		//[SerializeField]
		//AstronautDirections directions;
		//[SerializeField]
		//Transform startPoint;
		//[SerializeField]
		//Transform endPoint;
		[SerializeField]
		AbstractMap map;
		[SerializeField]
		GameObject rayPlane;
		//[SerializeField]
		//Transform _movementEndPoint;

		[SerializeField]
		LayerMask layerMask;

		Ray ray;
		RaycastHit hit;
		LayerMask raycastPlane;
		float clicktime;
		bool moving;
		bool characterDisabled;
		private List<Vector2d> rideList;
		void Start()
		{
			characterAnimator = GetComponentInChildren<Animator>();
			//初始化玩家坐标
			currentlatlong = map.WorldToGeoPosition(transform.localPosition);
			nextlatlong = currentlatlong;
			totalDistance = 0;
			//StartCoroutine("Timer");
			//if (!Application.isEditor)
			//{
			//	this.enabled = false;
			//	return;
			//}
		}
		//gameStatus idle start pause finish

		private Vector2d currentlatlong; //当前坐标
		private Vector2d nextlatlong; //下一个点的坐标
		private double totalDistance;
		void Update()
		{
			if (characterDisabled)
				return;

			//CamControl();

			bool click = false;

			if (Input.GetMouseButtonDown(0))
			{
				clicktime = Time.time;
			}
			if (Input.GetMouseButtonUp(0))
			{
				if (Time.time - clicktime > 0.15f)
				{
					click = true;
				}
			}
			//开始骑行
			//if (click)
			{
				StartCoroutine("Walk");
			}
		}
		IEnumerator Walk()
		{
			yield return new WaitForSeconds(1f);
			//读取当前速度以及骑行距离
			double distance = MockData.CalculateSpeed(Random.Range(100,300), 10, 100, 65, 7) / 3600;
			if (totalDistance + distance <= MockData.totaldistance)
			{
				totalDistance += distance;
				//计算下一个点的位置
				nextlatlong = MockData.Along(totalDistance);

				if (distance > 0)
				{
					CamControl();
					//设定动画状态
					characterAnimator.SetBool("IsRide", true);
					nextPos = map.GeoToWorldPosition(nextlatlong);
					//转向
					StartCoroutine(LookAtNextPos());
					//让人物移动 TODO 可以继续分点增加动画的流畅度
					transform.localPosition = nextPos;
					//StartCoroutine(MoveTo());
				}
				else
				{
					moving = false;
					characterAnimator.SetBool("IsRide", false);
				}
			}
			else
			{
				moving = false;
				characterAnimator.SetBool("IsRide", false);
			}
		}

		#region Character : Movement
		List<Vector3> futurePositions = new List<Vector3>();
		bool interruption;


		Vector3 nextPos;
		Vector3 prevPos;

		#endregion

		#region Character : Rotation
		IEnumerator LookAtNextPos()
		{
			Quaternion neededRotation = Quaternion.LookRotation(character.transform.position - nextPos);
			Quaternion thisRotation = character.transform.localRotation;

			float t = 0;
			while (t < 1.0f)
			{
				t += Time.deltaTime / 0.25f;
				var rotationValue = Quaternion.Slerp(thisRotation, neededRotation, t);
				character.transform.rotation = Quaternion.Euler(0, rotationValue.eulerAngles.y, 0);
				yield return null;
			}
		}
		#endregion

		#region CameraControl
		[Header("CameraSettings")]
		[SerializeField]
		Camera cam;
		Vector3 previousPos = Vector3.zero;
		Vector3 deltaPos = Vector3.zero;

		void CamControl()
		{
			if (cam != null)
			{
				deltaPos = transform.position - previousPos;
				//deltaPos.y = 0;
				cam.transform.position = Vector3.Lerp(cam.transform.position, cam.transform.position + deltaPos, Time.time);
				previousPos = transform.position;
			}
		}
		#endregion

	}
}