using System;
using System.Collections;
using System.IO;
using UnityEngine;
using UnityEngine.UI;

namespace GISTech.GISTerrainLoader
{
	public class SimpleTerrainGenerator : MonoBehaviour
	{
		public WayPoints GeoWaypoints;

		public AirplaneDemo AirPlane;

		public Text UIText;

		public bool InstantiateGameObjects;

		private string TerrainFilePath;

		private RuntimeTerrainGenerator RuntimeGenerator;

		private GISTerrainLoaderPrefs Prefs;

		private GISTerrainLoaderRuntimePrefs RuntimePrefs;

		[HideInInspector]
		public bool TerrainGenerated;

		public bool GenerateTerrainBackground;

		private void Start()
		{
			TerrainFilePath = Application.streamingAssetsPath + "/GIS Terrains/Example_SRTM30/Desert.tif";
			RuntimePrefs = GISTerrainLoaderMonoSingleton<GISTerrainLoaderRuntimePrefs>.Get;
			Prefs = RuntimePrefs.Prefs;
			Prefs.TerrainFilePath = TerrainFilePath;
			RuntimeGenerator = GISTerrainLoaderMonoSingleton<RuntimeTerrainGenerator>.Get;
			RuntimeTerrainGenerator.OnFinish += OnTerrainGeneratingCompleted;
			StartCoroutine(GenerateTerrain(TerrainFilePath));
		}

		private void Update()
		{
			if (TerrainGenerated)
			{
				UIText.text = "Latitude: " + AirPlane.GetAirPlaneLatLonElevation().y + " \nLongitude: " + AirPlane.GetAirPlaneLatLonElevation().x + " \nElevation:" + Math.Round(AirPlane.GetAirPlaneLatLonElevation().z, 2) + " m";
			}
		}

		private IEnumerator GenerateTerrain(string TerrainPath)
		{
			yield return new WaitForSeconds(2f);
			if ((Application.platform == RuntimePlatform.WindowsEditor || Application.platform == RuntimePlatform.WindowsPlayer) && (string.IsNullOrEmpty(TerrainPath) || !File.Exists(TerrainPath)))
			{
				Debug.LogError("Terrain file null or not supported.. Try againe");
				yield break;
			}
			InitializingRuntimePrefs(TerrainPath);
			StartCoroutine(RuntimeGenerator.StartGenerating(Prefs));
		}

		private void InitializingRuntimePrefs(string TerrainPath)
		{
			RuntimeGenerator.enabled = true;
			Prefs.TerrainFilePath = TerrainPath;
			Prefs.RemovePrvTerrain = OptionEnabDisab.Enable;
			Prefs.TerrainElevation = TerrainElevation.RealWorldElevation;
			Prefs.terrainDimensionMode = TerrainDimensionsMode.AutoDetection;
			Prefs.textureloadingMode = TexturesLoadingMode.AutoDetection;
			Prefs.vectorType = VectorType.OpenStreetMap;
			if (GenerateTerrainBackground)
			{
				Prefs.TerrainBackground = OptionEnabDisab.Enable;
				Prefs.TerrainBackgroundHeightmapResolution = 513;
				Prefs.TerrainBackgroundTextureResolution = 512;
			}
		}

		private void OnTerrainGeneratingCompleted(GISTerrainContainer m_container)
		{
			GeoWaypoints.ConvertLatLonToSpacePosition(RuntimeGenerator.GeneratedContainer, InstantiateGameObjects);
			AirPlane.OnTerrainGeneratingCompleted();
			TerrainGenerated = true;
		}

		private void OnDisable()
		{
			RuntimeTerrainGenerator.OnFinish -= OnTerrainGeneratingCompleted;
		}
	}
}