#include <cassert>

#include <hdf5.h>

#include "cctk.h"

#include "defs.hh"

#include "simulation.hh"
#include "utils.hh"



namespace CarpetIOF5 {
  
  namespace F5 {
    
    using std::ostringstream;
    
    
    
    simulation_t::
    simulation_t (timestep_t & timestep,
                  char const * const name)
      : m_timestep (timestep),
        m_name (name)
    {
      m_hdf5_simulation
        = open_or_create_group (m_timestep.get_hdf5_timestep(),
                                m_name.c_str());
      assert (m_hdf5_simulation >= 0);
      
      cGH const * const cctkGH = m_timestep.get_file().get_cctkGH();
      write_or_check_attribute
        (m_hdf5_simulation, "TimeStep", cctkGH->cctk_iteration);
      
      assert (invariant());
    }
    
    
    
    simulation_t::
    ~ simulation_t()
    {
      check (not H5Gclose (m_hdf5_simulation));
    }
    
    
    
    timestep_t & simulation_t::
    get_timestep ()
      const
    {
      return m_timestep;
    }
    
    
    
    hid_t simulation_t::
    get_hdf5_simulation()
      const
    {
      return m_hdf5_simulation;
    }
    
    
    
    void simulation_t::
    get_link_destination (int const proc,
                          string & filename,
                          string & objectname)
      const
    {
      get_timestep().get_link_destination (proc, filename, objectname);
      if (objectname.empty())
      {
        objectname = m_name;
      }
      else
      {
        objectname += string ("/") + m_name;
      }
    }
    
    
    
    bool simulation_t::
    invariant()
      const
    {
      return m_hdf5_simulation >= 0;
    }
    
  } // namespace F5

} // namespace CarpetIOF5