using Ghost.Test.Core;
using Misaki.HighPerformance.Jobs;
using Misaki.HighPerformance.LowLevel.Buffer;
using Misaki.HighPerformance.Mathematics;
using System;

namespace Ghost.Entities.Test;

internal struct TestEntityQueryJob : IJobEntityParallel<Transform>
{
    public readonly void Execute(Entity entity, ref Transform transform)
    {
        transform.position += new float3(10, 10, 10);
    }
}

public partial class ArcEntityTest : ITest
{
    private World _world = null!;
    private JobScheduler _jobScheduler = null!;

    public void Setup()
    {
        _world = World.Create();
        _jobScheduler = new JobScheduler(4);
    }

    public void Run()
    {
        var entity1 = _world.EntityManager.CreateEntity(ComponentTypeID<Transform>.value);
        _world.EntityManager.AddComponent(entity1, new Mesh { index = 1 });

        var queryID = new QueryBuilder().WithAll<Transform>().Build(_world);
        ref var query = ref _world.GetEntityQueryReference(queryID);

        var testJob = new TestEntityQueryJob();
        var handle = query.ScheduleEntityParallel<TestEntityQueryJob, Transform>(_jobScheduler, testJob, Allocator.Temp, 64, JobHandle.Invalid);
        _jobScheduler.WaitComplete(handle);

        query.ForEach<Transform>((e, ref t) => 
        {
            Console.WriteLine($"Entity {e} Has Position: {t.position}");
        });

        //foreach (var chunk in query.GetChunkIterator())
        //{
        //    var transforms = chunk.GetComponentData<Transform>();
        //    var entities = chunk.GetEntities();
        //    var bits = chunk.GetEnableBits<Transform>();

        //    var it = bits.GetIterator();
        //    while (it.Next(out var index) && index < chunk.Count)
        //    {
        //        Console.WriteLine($"Entity {entities[index]} Updated Position: {transforms[index].position}");
        //    }
        //}
    }

    public void Cleanup()
    {
        _world.Dispose();
    }
}

public struct Transform : IEnableableComponent
{
    public float3 position;
}

public struct Mesh : IComponent
{
    public int index;
}