using GarmentButton.CameraGeneral;
using Unity.Burst;
using Unity.Entities;

namespace GarmentButton.Culling
{
    public partial struct AddCameraFrustumSystem : ISystem
    {
        [BurstCompile]
        public void OnCreate(ref SystemState state)
        {
            state.RequireForUpdate<EndSimulationEntityCommandBufferSystem.Singleton>();
            state.RequireForUpdate<VisibleTag>();
            var query = SystemAPI.QueryBuilder().WithAll<CameraReferenceProperty>().WithNone<CameraFrustumPlanes>()
                .Build();
            
            state.RequireForUpdate(query);
        }

        [BurstCompile]
        public void OnUpdate(ref SystemState state)
        {
            var ecbSingleton = SystemAPI.GetSingleton<EndSimulationEntityCommandBufferSystem.Singleton>()
                .CreateCommandBuffer(state.WorldUnmanaged);
            var cameraEntity = SystemAPI.GetSingletonEntity<CameraReferenceProperty>();
            
            ecbSingleton.AddComponent<CameraFrustumPlanes>(cameraEntity);

        }
        
    }
}