/*
 * Copyright (c) 2005 Sandia Corporation. Under the terms of Contract
 * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Governement
 * 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 Sandia Corporation 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.
 * 
 */
/*!
*
* \undoc exgcss - ex_get_concat_sets
*
* reads the set ID's, set entry count array, set entry pointers
* array, set entry list, set extra list, and set distribution factors
* for all sets of the specified type.
*
* entry conditions - 
*   input parameters:
*       int     exoid                   exodus file id
*       ex_entity_type set_type                type of set
*
* exit conditions -
*       struct ex_set_specs* set_specs  set specs structure
*
* revision history - 
*
*
*****************************************************************************/

#include "exodusII.h"
#include "exodusII_int.h"

int ex_get_concat_sets (int   exoid,
                        ex_entity_type set_type,
                        struct ex_set_specs* set_specs)
{
  int status, dimid;
  void_int  *num_entries_per_set = set_specs->num_entries_per_set;
  void_int  *num_dist_per_set = set_specs->num_dist_per_set;
  void_int  *sets_entry_index = set_specs->sets_entry_index;
  void_int  *sets_dist_index = set_specs->sets_dist_index;

  void *sets_dist_fact = set_specs->sets_dist_fact; 

  int num_sets, i;
  float  *flt_dist_fact;
  double *dbl_dist_fact;
  char errmsg[MAX_ERR_LENGTH];
  ex_inquiry ex_inq_val;

  exerrval = 0; /* clear error code */

  /* setup pointers based on set_type 
     NOTE: there is another block that sets more stuff later ... */

  if (set_type == EX_NODE_SET) {
    ex_inq_val = EX_INQ_NODE_SETS;
  }
  else if (set_type == EX_EDGE_SET) {
    ex_inq_val = EX_INQ_EDGE_SETS;
  }
  else if (set_type == EX_FACE_SET) {
    ex_inq_val = EX_INQ_FACE_SETS;
  }
  else if (set_type == EX_SIDE_SET) {
    ex_inq_val = EX_INQ_SIDE_SETS;
  }
  else if (set_type == EX_ELEM_SET) {
    ex_inq_val = EX_INQ_ELEM_SETS;
  }
  else {
    exerrval = EX_FATAL;
    sprintf(errmsg,
	    "Error: invalid set type (%d)", set_type);
    ex_err("ex_put_set_param",errmsg,exerrval);
    return (EX_FATAL);
  }

  /* first check if any sets are specified */

  if ((status = nc_inq_dimid(exoid, ex_dim_num_objects(set_type), &dimid)) != NC_NOERR) {
    exerrval = status;
    if (status == NC_EBADDIM) {
      sprintf(errmsg,
	      "Warning: no %ss defined for file id %d",
	      ex_name_of_object(set_type), exoid);
      ex_err("ex_get_concat_sets",errmsg,exerrval);
      return (EX_WARN);
    } else {
      sprintf(errmsg,
	      "Error: failed to locate %ss defined in file id %d", 
	      ex_name_of_object(set_type), exoid);
      ex_err("ex_get_concat_sets",errmsg,exerrval);
      return (EX_FATAL);
    }
  }

  /* inquire how many sets have been stored */

  num_sets = ex_inquire_int(exoid, ex_inq_val);
  if (num_sets < 0) {
    sprintf(errmsg,
            "Error: failed to get number of %ss defined for file id %d",
	    ex_name_of_object(set_type), exoid);
    /* use error val from inquire */
    ex_err("ex_get_concat_sets",errmsg,exerrval);
    return (EX_FATAL);
  }

  if (ex_get_ids (exoid, set_type, set_specs->sets_ids) != NC_NOERR) {
    sprintf(errmsg,
            "Error: failed to get %s ids for file id %d",
	    ex_name_of_object(set_type), exoid);
    /* use error val from inquire */
    ex_err("ex_get_concat_sets",errmsg,exerrval);
    return (EX_FATAL);
  }

  if (ex_int64_status(exoid) & EX_IDS_INT64_API) {
    ((int64_t*)sets_entry_index)[0] = 0;
    ((int64_t*)sets_dist_index)[0] = 0;
  } else {
    ((int*)sets_entry_index)[0] = 0;
    ((int*)sets_dist_index)[0] = 0;
  }

  for (i=0; i<num_sets; i++) {
    int set_id;
    if (ex_int64_status(exoid) & EX_IDS_INT64_API) {
      set_id = ((int64_t*)set_specs->sets_ids)[i];
    } else {
      set_id = ((int*)set_specs->sets_ids)[i];
    }

    if (ex_int64_status(exoid) & EX_BULK_INT64_API) {
      if (ex_get_set_param(exoid, set_type, set_id, 
			   &(((int64_t*)num_entries_per_set)[i]),
			   &(((int64_t*)num_dist_per_set)[i])) != NC_NOERR)
	return(EX_FATAL); /* error will be reported by sub */
      
      if (i < num_sets-1) {
	/* fill in entry and dist factor index arrays */
	((int64_t*)sets_entry_index)[i+1] = ((int64_t*)sets_entry_index)[i]+((int64_t*)num_entries_per_set)[i];
	((int64_t*)sets_dist_index)[i+1] = ((int64_t*)sets_dist_index)[i]+((int64_t*)num_dist_per_set)[i];
      }

      if (((int64_t*)num_entries_per_set)[i] == 0) /* NULL  set? */
	continue;

      {
	/* Now, use ExodusII call to get sets */
	int64_t *sets_entry_list = set_specs->sets_entry_list;
	int64_t *sets_extra_list = set_specs->sets_extra_list;
	int64_t *sets_extra = sets_extra_list ? &((int64_t*)sets_extra_list)[((int64_t*)sets_entry_index)[i]] : NULL;
	status = ex_get_set(exoid, set_type, set_id,
			    &(sets_entry_list[((int64_t*)sets_entry_index)[i]]),
			    sets_extra);
      }
    } else {
      if (ex_get_set_param(exoid, set_type, set_id, 
			   &(((int*)num_entries_per_set)[i]),
			   &(((int*)num_dist_per_set)[i])) != NC_NOERR)
	return(EX_FATAL); /* error will be reported by sub */
      
      if (i < num_sets-1) {
	/* fill in entry and dist factor index arrays */
	((int*)sets_entry_index)[i+1] = ((int*)sets_entry_index)[i]+((int*)num_entries_per_set)[i];
	((int*)sets_dist_index)[i+1] = ((int*)sets_dist_index)[i]+((int*)num_dist_per_set)[i];
      }

      if (((int*)num_entries_per_set)[i] == 0) /* NULL  set? */
	continue;

      {
	/* Now, use ExodusII call to get sets */
	int *sets_entry_list = set_specs->sets_entry_list;
	int *sets_extra_list = set_specs->sets_extra_list;
	int *sets_extra = sets_extra_list ? &((int*)sets_extra_list)[((int*)sets_entry_index)[i]] : NULL;
	status = ex_get_set(exoid, set_type, set_id,
			    &(sets_entry_list[((int*)sets_entry_index)[i]]),
			    sets_extra);
      }
    }

    if (status != NC_NOERR)
      return(EX_FATAL); /* error will be reported by subroutine */
    
    /* get distribution factors for this set */
    if (sets_dist_fact != 0) {
      size_t df_idx;
      size_t num_dist;
      if (ex_int64_status(exoid) & EX_BULK_INT64_API) {
	df_idx = ((int64_t*)sets_dist_index)[i];
	num_dist = ((int64_t*)num_dist_per_set)[i];
      } else {
	df_idx = ((int*)sets_dist_index)[i];
	num_dist = ((int*)num_dist_per_set)[i];
      }
      if (num_dist > 0) {      /* only get df if they exist */
	if (ex_comp_ws(exoid) == sizeof(float)) {
	  flt_dist_fact = sets_dist_fact;
	  status = ex_get_set_dist_fact(exoid, set_type, set_id,
					&(flt_dist_fact[df_idx]));
	} else {
	  dbl_dist_fact = sets_dist_fact;
	  status = ex_get_set_dist_fact(exoid, set_type, set_id,
					&(dbl_dist_fact[df_idx]));
	}
	if (status != NC_NOERR) {
	  return(EX_FATAL); /* error will be reported by subroutine */
	}
      }
    }
  }
  return(EX_NOERR);
}
