/**************************************************************************\
 *
 *  This file is part of the Coin 3D visualization library.
 *  Copyright (C) 1998-2007 by Systems in Motion.  All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  ("GPL") version 2 as published by the Free Software Foundation.
 *  See the file LICENSE.GPL at the root directory of this source
 *  distribution for additional information about the GNU GPL.
 *
 *  For using Coin with software that can not be combined with the GNU
 *  GPL, and for taking advantage of the additional benefits of our
 *  support services, please contact Systems in Motion about acquiring
 *  a Coin Professional Edition License.
 *
 *  See http://www.coin3d.org/ for more information.
 *
 *  Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
 *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
 *
\**************************************************************************/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */

#include <Inventor/C/tidbitsp.h>
#include <Inventor/C/errors/debugerror.h>
#include <stdlib.h>

static cc_debugerror_cb * dbgerr_callback = (cc_debugerror_cb *)cc_error_default_handler_cb;
static void * dbgerr_callback_data = NULL;
static SbBool dbgerr_cleanup_function_set = FALSE;

static void
debugerror_cleanup(void)
{
  dbgerr_callback = (cc_debugerror_cb *)cc_error_default_handler_cb;
  dbgerr_callback_data = NULL;
  dbgerr_cleanup_function_set = FALSE;
}

void
cc_debugerror_init(cc_debugerror * me)
{
  cc_error_init((cc_error *)me);
}

void
cc_debugerror_clean(cc_debugerror * me)
{
  cc_error_clean((cc_error *)me);
}


CC_DEBUGERROR_SEVERITY
cc_debugerror_get_severity(const cc_debugerror * me)
{
  return me->severity;
}

void
cc_debugerror_set_handler_callback(cc_debugerror_cb * function, void * data)
{
  dbgerr_callback = function;
  dbgerr_callback_data = data;

  if (!dbgerr_cleanup_function_set) {
    coin_atexit((coin_atexit_f*) debugerror_cleanup, CC_ATEXIT_MSG_SUBSYSTEM);
    dbgerr_cleanup_function_set = TRUE;
  }
}

cc_debugerror_cb *
cc_debugerror_get_handler_callback(void)
{
  return dbgerr_callback;
}

void *
cc_debugerror_get_handler_data(void)
{
  return dbgerr_callback_data;
}

cc_debugerror_cb *
cc_debugerror_get_handler(void ** data)
{
  *data = dbgerr_callback_data;
  return dbgerr_callback;
}

static void
cc_debugerror_internal_post(const char * source, cc_string * msg,
                            CC_DEBUGERROR_SEVERITY sev, const char * type)
{
  cc_debugerror deberr;

  cc_debugerror_init(&deberr);

  deberr.severity = sev;
  cc_error_set_debug_string((cc_error *)&deberr, "Coin ");
  cc_error_append_to_debug_string((cc_error *)&deberr, type);
  cc_error_append_to_debug_string((cc_error *)&deberr, " in ");
  cc_error_append_to_debug_string((cc_error *)&deberr, source);
  cc_error_append_to_debug_string((cc_error *)&deberr, "(): ");
  cc_error_append_to_debug_string((cc_error *)&deberr, cc_string_get_text(msg));

  if (dbgerr_callback != (cc_debugerror_cb *)cc_error_default_handler_cb) {
    dbgerr_callback(&deberr, dbgerr_callback_data);
  }
  else {
    cc_error_handle((cc_error *)&deberr);
  }

  /* FIXME: port to C. 20020524 mortene. */
  /* check_breakpoints(source);*/

  cc_debugerror_clean(&deberr);
}

#define CC_DEBUGERROR_POST(SEVERITY, TYPE) \
  cc_string s; \
  va_list args; \
 \
  va_start(args, format); \
  cc_string_construct(&s); \
  cc_string_vsprintf(&s, format, args); \
  va_end(args); \
 \
  cc_debugerror_internal_post(source, &s, SEVERITY, TYPE); \
  cc_string_clean(&s)

void
cc_debugerror_post(const char * source, const char * format, ...)
{
  CC_DEBUGERROR_POST(CC_DEBUGERROR_ERROR, "error");
}

void
cc_debugerror_postwarning(const char * source, const char * format, ...)
{
  CC_DEBUGERROR_POST(CC_DEBUGERROR_WARNING, "warning");
}

void
cc_debugerror_postinfo(const char * source, const char * format, ...)
{
  CC_DEBUGERROR_POST(CC_DEBUGERROR_INFO, "info");
}