using SpaceGame.Simulation.Api.Contracts;

namespace SpaceGame.Simulation.Api.Simulation;

public sealed class WorldService(IWebHostEnvironment environment)
{
  private readonly object _sync = new();
  private readonly ScenarioLoader _loader = new(environment.ContentRootPath);
  private readonly SimulationEngine _engine = new();
  private SimulationWorld _world = new ScenarioLoader(environment.ContentRootPath).Load();

  public WorldSnapshot GetSnapshot()
  {
    lock (_sync)
    {
      return _engine.BuildSnapshot(_world);
    }
  }

  public void Tick(float deltaSeconds)
  {
    lock (_sync)
    {
      _engine.Tick(_world, deltaSeconds);
    }
  }

  public WorldSnapshot Reset()
  {
    lock (_sync)
    {
      _world = _loader.Load();
      return _engine.BuildSnapshot(_world);
    }
  }
}