using System.Collections.Generic;
using System.Text;
using UnityEngine;

public class MegaCacheObjImporter
{
	private class MegaCacheOBJFace
	{
		public int[] v = new int[4];

		public int[] uv = new int[4];

		public int[] n = new int[4];

		public bool quad;

		public int smthgrp;

		public int mtl;
	}

	private class MegaCacheOBJMesh
	{
		public List<Vector3> vertices = new List<Vector3>();

		public List<Vector3> normals = new List<Vector3>();

		public List<Vector2> uv = new List<Vector2>();

		public List<Vector2> uv1 = new List<Vector2>();

		public List<Vector2> uv2 = new List<Vector2>();

		public List<MegaCacheOBJFace> faces = new List<MegaCacheOBJFace>();
	}

	private static List<MegaCacheOBJMtl> mtls = new List<MegaCacheOBJMtl>();

	private static List<MegaCacheFace> faces = new List<MegaCacheFace>();

	private static int currentmtl;

	private static int smthgrp;

	private static int offset = 0;

	private static MegaCacheOBJMtl loadmtl;

	private static string importpath;

	public static void Init()
	{
		mtls.Clear();
	}

	public static int NumMtls()
	{
		return mtls.Count;
	}

	public static MegaCacheOBJMtl GetMtl(int i)
	{
		return mtls[i];
	}

	public static Mesh ImportFile(string filePath, float scale, bool adjust, bool tangents, bool loadmtls, bool optimize, bool recalcnormals)
	{
		return null;
	}

	public static string ReadLine(string input)
	{
		StringBuilder stringBuilder = new StringBuilder();
		while (offset < input.Length)
		{
			int num = input[offset++];
			if (num == 13 || num == 10)
			{
				while (offset < input.Length)
				{
					int num2 = input[offset++];
					if (num2 != 10)
					{
						offset--;
						break;
					}
				}
				return stringBuilder.ToString();
			}
			stringBuilder.Append((char)num);
		}
		if (stringBuilder.Length > 0)
		{
			return stringBuilder.ToString();
		}
		return null;
	}

	private static void populateMeshStructNew(string entireText, ref MegaCacheOBJMesh mesh, bool loadmtls)
	{
		offset = 0;
		string text = ReadLine(entireText);
		char[] separator = new char[1] { ' ' };
		char[] separator2 = new char[1] { '/' };
		while (text != null)
		{
			text = text.Trim();
			string[] array = text.Split(separator, 50);
			switch (array[0])
			{
			case "usemtl":
				array[1] = array[1].Replace(':', '_');
				if (loadmtls)
				{
					currentmtl = GetMtlID(array[1]);
				}
				else
				{
					currentmtl = 0;
				}
				break;
			case "mtllib":
				if (loadmtls)
				{
					string filename = importpath + "/" + array[1];
					LoadMtlLib(filename);
				}
				break;
			case "v":
				mesh.vertices.Add(new Vector3(float.Parse(array[1]), float.Parse(array[2]), float.Parse(array[3])));
				break;
			case "vt":
				mesh.uv.Add(new Vector2(float.Parse(array[1]), float.Parse(array[2])));
				break;
			case "vt1":
				mesh.uv1.Add(new Vector2(float.Parse(array[1]), float.Parse(array[2])));
				break;
			case "vt2":
				mesh.uv2.Add(new Vector2(float.Parse(array[1]), float.Parse(array[2])));
				break;
			case "vn":
				mesh.normals.Add(new Vector3(float.Parse(array[1]), float.Parse(array[2]), float.Parse(array[3])));
				break;
			case "f":
			{
				int i = 1;
				MegaCacheOBJFace megaCacheOBJFace = new MegaCacheOBJFace();
				megaCacheOBJFace.mtl = currentmtl;
				megaCacheOBJFace.smthgrp = smthgrp;
				for (; i < array.Length && (string.Empty + array[i]).Length > 0; i++)
				{
					string[] array2 = array[i].Split(separator2, 3);
					if (i == 4)
					{
						megaCacheOBJFace.quad = true;
					}
					megaCacheOBJFace.v[i - 1] = int.Parse(array2[0]) - 1;
					if (array2.Length > 1)
					{
						if (array2[1] != string.Empty)
						{
							megaCacheOBJFace.uv[i - 1] = int.Parse(array2[1]) - 1;
						}
						if (array2.Length > 2)
						{
							megaCacheOBJFace.n[i - 1] = int.Parse(array2[2]) - 1;
						}
					}
				}
				mesh.faces.Add(megaCacheOBJFace);
				break;
			}
			}
			text = ReadLine(entireText);
			if (text != null)
			{
				text = text.Replace("  ", " ");
			}
		}
	}

	public static void ImportMtl(string filePath)
	{
		LoadMtlLib(filePath);
	}

	private static MegaCacheOBJMtl HaveMaterial(string name)
	{
		for (int i = 0; i < mtls.Count; i++)
		{
			if (mtls[i].name == name)
			{
				return mtls[i];
			}
		}
		MegaCacheOBJMtl megaCacheOBJMtl = new MegaCacheOBJMtl();
		megaCacheOBJMtl.Ka = Color.white;
		megaCacheOBJMtl.Kd = Color.white;
		megaCacheOBJMtl.Ks = Color.white;
		megaCacheOBJMtl.Ke = Color.white;
		megaCacheOBJMtl.name = name;
		mtls.Add(megaCacheOBJMtl);
		return megaCacheOBJMtl;
	}

	private static int GetMtlID(string name)
	{
		if (mtls.Count > 0)
		{
			for (int i = 0; i < mtls.Count; i++)
			{
				if (mtls[i].name == name)
				{
					return i;
				}
			}
			Debug.Log("Missing Material " + name);
		}
		return 0;
	}

	private static void LoadMtlLib(string filename)
	{
	}
}