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

namespace Assets.Scenes.Ride.Scripts
{
    public class RouteController : MonoBehaviour
	{
		[SerializeField]
		AbstractMap _map;
		[SerializeField]
		MeshModifier SnapModifier;
		[SerializeField]
		Material _material;

		[SerializeField]
		[Range(1, 10)]
		private float UpdateFrequency = 2;

		private int _counter;

		GameObject _directionsGO;
		GameObject _mipMapRoute;
		CyclingController cyclingCotroller;

		protected virtual void Awake()
		{
			if (_map == null)
			{
				_map = FindObjectOfType<AbstractMap>();
			}
			_map.OnInitialized += CreateRoute;
			_map.OnUpdated += CreateRoute;
			
		}

		public void Start()
		{
			cyclingCotroller = transform.parent.GetComponent<CyclingController>();
			StartCoroutine(QueryTimer());
			//CreateRoute();
		}

		protected virtual void OnDestroy()
		{
			_map.OnInitialized -= CreateRoute;
			_map.OnUpdated -= CreateRoute;
		}

		public IEnumerator QueryTimer()
		{
			while (true)
			{
				yield return new WaitForSeconds(UpdateFrequency);
				CreateRoute();
			}
		}
		void CreateRoute()
		{
			UnityTile tile;
			bool foundTile = _map.MapVisualizer.ActiveTiles.TryGetValue(Conversions.LatitudeLongitudeToTileId(_map.CenterLatitudeLongitude.x, _map.CenterLatitudeLongitude.y, (int)_map.Zoom), out tile);
			if (foundTile)
			{
				var meshData = new MeshData();
				var dat = new List<Vector3>();

				var mapData = cyclingCotroller.GetMapData();
				if (mapData != null)
				{
					foreach (var mapDataItem in mapData.List)
					{
						var point = mapDataItem.Point;
						Vector3 item = _map.GeoToWorldPosition(new Vector2d(point[0], point[1]));
						item.y += 0.3f;
						dat.Add(item);
					}
					var feat = new VectorFeatureUnity();
					feat.Points.Add(dat);
					//处理海拔高度的问题
					SnapModifier.Run(feat, meshData, tile);
					CreatMapRoute(feat);//创建路线
					CreateMiniMapRoute(feat);//创建小地图路线
				}
			}
		}
		void CreatMapRoute(VectorFeatureUnity feat)
		{
			if (_directionsGO != null)
			{
				_directionsGO.Destroy();
			}
			_directionsGO = new GameObject("MapRoute");
			var lineRender = _directionsGO.AddComponent<LineRenderer>();
			lineRender.material = new Material(Shader.Find("Sprites/Default"));
			var dat = feat.Points[0];
			ColorUtility.TryParseHtmlString("#FF2742", out Color c);
			lineRender.endColor = c;
			lineRender.startColor = c;
			//设置宽度  
			lineRender.SetWidth(0.5f, 0.5f);
            lineRender.SetVertexCount(dat.Count);
			lineRender.SetPositions(feat.Points[0].ToArray());
            //lineRender.numCapVertices = 90;
			float alpha = 1.0f;
            //Gradient gradient = new Gradient();
            //gradient.SetKeys(
            //    new GradientColorKey[] { new GradientColorKey(Color.green, 0.0f), new GradientColorKey(Color.red, 1.0f) },
            //    new GradientAlphaKey[] { new GradientAlphaKey(alpha, 0.0f), new GradientAlphaKey(alpha, 1.0f) }
            //);
            //lineRender.colorGradient = gradient;
            lineRender.numCornerVertices = 90;

		}
		void CreateMiniMapRoute(VectorFeatureUnity feat)
		{
			if (_mipMapRoute != null)
			{
				_mipMapRoute.Destroy();
			}
			_mipMapRoute = new GameObject("MiniMapRoute");
			var lineRender = _mipMapRoute.AddComponent<LineRenderer>();
			lineRender.material = new Material(Shader.Find("Sprites/Default"));
			var dat = feat.Points[0];
			lineRender.endColor = Color.white;
			lineRender.startColor = Color.white;
			//设置宽度  
			lineRender.SetWidth(3f, 3f);
			lineRender.SetVertexCount(dat.Count);
			lineRender.SetPositions(feat.Points[0].ToArray());
			//lineRender.numCapVertices = 90;
			float alpha = 1.0f;
			//Gradient gradient = new Gradient();
			//gradient.SetKeys(
			//	new GradientColorKey[] { new GradientColorKey(Color.green, 0.0f), new GradientColorKey(Color.red, 1.0f) },
			//	new GradientAlphaKey[] { new GradientAlphaKey(alpha, 0.0f), new GradientAlphaKey(alpha, 1.0f) }
			//);
			//lineRender.colorGradient = gradient;
			lineRender.numCornerVertices = 90;
			_mipMapRoute.layer = 9;
		}
	}
}