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

using NUnit.Framework;
using Encompass;

namespace Tests
{
    public class EntityRendererTest
    {
        struct AComponent : IComponent { }
        struct BComponent : IComponent { }
        struct CComponent : IComponent { }

        struct TestDrawComponent : IDrawComponent
        {
            public int Layer { get; set; }
        }

        [Renders(typeof(TestDrawComponent), typeof(AComponent), typeof(BComponent))]
        class TestRenderer : EntityRenderer
        {
            public override void Render(Entity entity) { }
        }

        [Test]
        public void CheckAndTrackEntities()
        {
            var worldBuilder = new WorldBuilder();
            var renderer = worldBuilder.AddRenderer<TestRenderer>();

            AComponent aComponent;
            BComponent bComponent;
            TestDrawComponent testDrawComponent = default(TestDrawComponent);

            var entityToTrack = worldBuilder.CreateEntity();
            entityToTrack.AddComponent(aComponent);
            entityToTrack.AddComponent(bComponent);
            entityToTrack.AddComponent(testDrawComponent);

            var entityNotToTrack = worldBuilder.CreateEntity();
            entityNotToTrack.AddComponent(aComponent);
            entityNotToTrack.AddComponent(testDrawComponent);

            var entityWithoutDrawComponent = worldBuilder.CreateEntity();
            entityWithoutDrawComponent.AddComponent(aComponent);
            entityWithoutDrawComponent.AddComponent(bComponent);

            var world = worldBuilder.Build();

            world.Update(0.01f);

            Console.WriteLine(renderer.IsTracking(entityNotToTrack.id));

            Assert.IsTrue(renderer.IsTracking(entityToTrack.id));
            Assert.IsFalse(renderer.IsTracking(entityNotToTrack.id));
            Assert.IsFalse(renderer.IsTracking(entityWithoutDrawComponent.id));
        }
    }
}