namespace MoonTools.ECS
{
	public class World
	{
		internal readonly EntityStorage EntityStorage = new EntityStorage();
		internal readonly ComponentDepot ComponentDepot = new ComponentDepot();
		internal readonly MessageDepot MessageDepot = new MessageDepot();
		internal readonly RelationDepot RelationDepot = new RelationDepot();

		public Entity CreateEntity()
		{
			return EntityStorage.Create();
		}

		public void Set<TComponent>(Entity entity, in TComponent component) where TComponent : struct
		{
			ComponentDepot.Set(entity.ID, component);
		}

		public void Send<TMessage>(in TMessage message) where TMessage : struct
		{
			MessageDepot.Add(message);
		}

		public void FinishUpdate()
		{
			MessageDepot.Clear();
		}

		public ComponentDepotState Serialize()
		{
			var state = ComponentDepot.CreateState();
			ComponentDepot.Serialize(state);
			return state;
		}

		public void Deserialize(ComponentDepotState state)
		{
			ComponentDepot.Deserialize(state);
		}
	}
}