/*
 * Copyright (c) 2005-2017 National Technology & Engineering Solutions
 * of Sandia, LLC (NTESS).  Under the terms of Contract DE-NA0003525 with
 * NTESS, the U.S. Government retains certain rights in this software.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
 *
 *     * Neither the name of NTESS nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
/*
 *
 *****************************************************************************/

#include "exodusII.h"     // for ex_err, etc
#include "exodusII_int.h" // for EX_FATAL, etc
#include "vtk_netcdf.h"       // for NC_NOERR, nc_get_var_int, etc
#include <stdio.h>

/*
 *  reads the element block ids from the database
 */

int ex_get_ids(int exoid, ex_entity_type obj_type, void_int *ids)
{
  int  varid, status;
  char errmsg[MAX_ERR_LENGTH];

  const char *varidobj;

  EX_FUNC_ENTER();
  ex_check_valid_file_id(exoid, __func__);

  switch (obj_type) {
  case EX_EDGE_BLOCK: varidobj = VAR_ID_ED_BLK; break;
  case EX_FACE_BLOCK: varidobj = VAR_ID_FA_BLK; break;
  case EX_ELEM_BLOCK: varidobj = VAR_ID_EL_BLK; break;
  case EX_NODE_SET: varidobj = VAR_NS_IDS; break;
  case EX_EDGE_SET: varidobj = VAR_ES_IDS; break;
  case EX_FACE_SET: varidobj = VAR_FS_IDS; break;
  case EX_SIDE_SET: varidobj = VAR_SS_IDS; break;
  case EX_ELEM_SET: varidobj = VAR_ELS_IDS; break;
  case EX_NODE_MAP: varidobj = VAR_NM_PROP(1); break;
  case EX_EDGE_MAP: varidobj = VAR_EDM_PROP(1); break;
  case EX_FACE_MAP: varidobj = VAR_FAM_PROP(1); break;
  case EX_ELEM_MAP: varidobj = VAR_EM_PROP(1); break;
  default: /* invalid variable type */
    snprintf(errmsg, MAX_ERR_LENGTH, "ERROR: Invalid type specified in file id %d", exoid);
    ex_err(__func__, errmsg, EX_BADPARAM);
    EX_FUNC_LEAVE(EX_FATAL);
  }

  /* Determine if there are any 'obj-type' objects */
  if ((status = nc_inq_dimid(exoid, ex_dim_num_objects(obj_type), &varid)) != NC_NOERR) {
    snprintf(errmsg, MAX_ERR_LENGTH, "Warning: no %s defined in file id %d",
             ex_name_of_object(obj_type), exoid);
    ex_err(__func__, errmsg, status);
    EX_FUNC_LEAVE(EX_WARN);
  }

  /* inquire id's of previously defined dimensions and variables  */
  if ((status = nc_inq_varid(exoid, varidobj, &varid)) != NC_NOERR) {
    snprintf(errmsg, MAX_ERR_LENGTH, "ERROR: failed to locate %s ids variable in file id %d",
             ex_name_of_object(obj_type), exoid);
    ex_err(__func__, errmsg, status);
    EX_FUNC_LEAVE(EX_FATAL);
  }

  /* read in the element block ids  */
  if (ex_int64_status(exoid) & EX_IDS_INT64_API) {
    status = nc_get_var_longlong(exoid, varid, ids);
  }
  else {
    status = nc_get_var_int(exoid, varid, ids);
  }

  if (status != NC_NOERR) {
    snprintf(errmsg, MAX_ERR_LENGTH, "ERROR: failed to return %s ids in file id %d",
             ex_name_of_object(obj_type), exoid);
    ex_err(__func__, errmsg, status);
    EX_FUNC_LEAVE(EX_FATAL);
  }
  EX_FUNC_LEAVE(EX_NOERR);
}
