using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using NUnit.Framework;
using FlaxEngine;
using Game;

namespace GoakeTests.MapParser
{
	public class MapParserTests
	{
		private byte[] aerowalkBytes;
		private MapEntity aerowalkRoot;

		private byte[] q1mapBytes;
		private byte[] dm4Bytes;

		[SetUp]
		public void Setup()
		{
			dm4Bytes = File.ReadAllBytes(@"C:\dev\GoakeFlax\Assets\Maps\dm4.map");

			aerowalkBytes = File.ReadAllBytes(@"C:\dev\GoakeFlax\Assets\Maps\aerowalk.map");
			aerowalkRoot = Game.MapParser.Parse(aerowalkBytes);

			q1mapBytes = File.ReadAllBytes(@"C:\dev\GoakeFlax\Assets\Maps\cube_q1.map");
		}

		[TearDown]
		public void CleanUp()
		{

		}

		[Test]
		public void Perf_LoadQ1test()
		{
			List<Game.MapEntity> mapEntities = new List<Game.MapEntity>(100);

			Stopwatch sw = Stopwatch.StartNew();

			for (int i = 0; i < 100; i++)
			{
				var root = Game.MapParser.Parse(q1mapBytes);
				Assert.IsTrue(root.entities[0].brushes.Count > 0);
				mapEntities.Add(root);
			}

			sw.Stop();

			var elapsedMs = sw.Elapsed.TotalMilliseconds;
			TestContext.Out.WriteLine("Map parsing time: " + elapsedMs/100 + "ms");
		}

		[Test]
		public void Perf_LoadDM4()
		{
			List<Game.MapEntity> mapEntities = new List<Game.MapEntity>(100);

			Stopwatch sw = Stopwatch.StartNew();

			for (int i = 0; i < 100; i++)
			{
				var root = Game.MapParser.Parse(dm4Bytes);
				Assert.IsTrue(root.entities[0].brushes.Count > 0);
				mapEntities.Add(root);
			}

			sw.Stop();

			var elapsedMs = sw.Elapsed.TotalMilliseconds;
			TestContext.Out.WriteLine("Map parsing time: " + elapsedMs/100 + "ms");
		}

		[Test]
		public void Perf_LoadAerowalk()
		{
			List<Game.MapEntity> mapEntities = new List<Game.MapEntity>(100);

			Stopwatch sw = Stopwatch.StartNew();

			for (int i = 0; i < 100; i++)
			{
				var root = Game.MapParser.Parse(aerowalkBytes);
				mapEntities.Add(root);
			}

			sw.Stop();

			var elapsedMs = sw.Elapsed.TotalMilliseconds;
			TestContext.Out.WriteLine("Map parsing time: " + elapsedMs/100 + "ms");
		}

		[Test]
		public void Perf_TriangulateAerowalk()
		{
			// warmup?
			//var roott = Game.MapParser.Parse(aerowalkBytes);

			List<Game.MapEntity> mapEntities = new List<Game.MapEntity>(100);
			aerowalkRoot = Game.MapParser.Parse(aerowalkBytes);
			/*for (int i = 0; i < 1; i++)
			{
				foreach (var ent in aerowalkRoot.entities)
				foreach (var brush in ent.brushes)
				{
					Q3MapImporter.TriangulateBrush(brush, out Vector3[] verts);
					Assert.IsTrue(verts.Length > 0);
				}
			}*/

			Stopwatch sw = Stopwatch.StartNew();

			for (int i = 0; i < 1; i++)
			{
				foreach (var ent in aerowalkRoot.entities)
				foreach (var brush in ent.brushes)
				{
					Q3MapImporter.TriangulateBrush(brush, out Float3[] verts);
					Assert.IsTrue(verts.Length > 0);
				}
			}

			sw.Stop();

			var elapsedMs = sw.Elapsed.TotalMilliseconds;
			TestContext.Out.WriteLine("Triangulation time: " + elapsedMs + "ms");
		}

		[Test]
		public void Perf_TriangulateQ1test()
		{
			// warmup?
			//var roott = Game.MapParser.Parse(aerowalkBytes);

			List<Game.MapEntity> mapEntities = new List<Game.MapEntity>(100);
			var root = Game.MapParser.Parse(q1mapBytes);

			Stopwatch sw = Stopwatch.StartNew();

			for (int i = 0; i < 1; i++)
			{
				foreach (var ent in root.entities)
				foreach (var brush in ent.brushes)
				{
					Q3MapImporter.TriangulateBrush(brush, out Float3[] verts);
					Assert.IsTrue(verts.Length > 0);
				}
			}

			sw.Stop();

			var elapsedMs = sw.Elapsed.TotalMilliseconds;
			TestContext.Out.WriteLine("Triangulation time: " + elapsedMs + "ms");
		}
	}
}