/*
     This file is part of GNUnet.
     (C) 2013 Christian Grothoff (and other contributing authors)

     GNUnet is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 3, or (at your
     option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
*/
/**
 * @file namestore/test_namestore_api_monitoring.c
 * @brief testcase for zone iteration functionality: iterate of a specific zone
 */
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_namestore_service.h"
#include "gnunet_testing_lib.h"
#include "namestore.h"


#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 100)


static struct GNUNET_NAMESTORE_Handle * nsh;

static GNUNET_SCHEDULER_TaskIdentifier endbadly_task;

static GNUNET_SCHEDULER_TaskIdentifier stopiteration_task;

static struct GNUNET_CRYPTO_EccPrivateKey * privkey;

static struct GNUNET_CRYPTO_EccPublicKey pubkey;

static struct GNUNET_HashCode zone;

static struct GNUNET_CRYPTO_EccPrivateKey * privkey2;

static struct GNUNET_CRYPTO_EccPublicKey pubkey2;

static struct GNUNET_HashCode zone2;

static struct GNUNET_NAMESTORE_ZoneMonitor *zm;

static int res;

static int returned_records;

static struct GNUNET_CRYPTO_EccSignature *sig_1;

static char * s_name_1;

static struct GNUNET_NAMESTORE_RecordData *s_rd_1;

static struct GNUNET_CRYPTO_EccSignature *sig_2;

static char * s_name_2;

static struct GNUNET_NAMESTORE_RecordData *s_rd_2;

static struct GNUNET_CRYPTO_EccSignature *sig_3;

static char * s_name_3;

static struct GNUNET_NAMESTORE_RecordData *s_rd_3;


static void
do_shutdown ()
{
  if (stopiteration_task != GNUNET_SCHEDULER_NO_TASK)
  {
    GNUNET_SCHEDULER_cancel (stopiteration_task);
    stopiteration_task = GNUNET_SCHEDULER_NO_TASK;
  }
  if (NULL != zm)
  {
    GNUNET_NAMESTORE_zone_monitor_stop (zm);
    zm = NULL;
  }
  if (NULL != nsh)
  {
    GNUNET_NAMESTORE_disconnect (nsh);
    nsh = NULL;
  }
  GNUNET_free_non_null(sig_1);
  GNUNET_free_non_null(sig_2);
  GNUNET_free_non_null(sig_3);
  GNUNET_free_non_null(s_name_1);
  GNUNET_free_non_null(s_name_2);
  GNUNET_free_non_null(s_name_3);

  if (s_rd_1 != NULL)
  {
    GNUNET_free ((void *)s_rd_1->data);
    GNUNET_free (s_rd_1);
  }
  if (s_rd_2 != NULL)
  {
    GNUNET_free ((void *)s_rd_2->data);
    GNUNET_free (s_rd_2);
  }
  if (s_rd_3 != NULL)
  {
    GNUNET_free ((void *)s_rd_3->data);
    GNUNET_free (s_rd_3);
  }

  if (NULL != privkey)
  {
    GNUNET_CRYPTO_ecc_key_free (privkey);
    privkey = NULL;
  }
  if (NULL != privkey2)
  {
    GNUNET_CRYPTO_ecc_key_free (privkey2);
    privkey2 = NULL;
  }
}


/**
 * Re-establish the connection to the service.
 *
 * @param cls handle to use to re-connect.
 * @param tc scheduler context
 */
static void
endbadly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  do_shutdown ();
  res = 1;
}


static void
end (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  do_shutdown ();
  res = 0;
}


static void
zone_proc (void *cls,
	   const struct GNUNET_CRYPTO_EccPublicKey *zone_key,
	   struct GNUNET_TIME_Absolute expire,
	   const char *name,
	   unsigned int rd_count,
	   const struct GNUNET_NAMESTORE_RecordData *rd,
	   const struct GNUNET_CRYPTO_EccSignature *signature)
{
  GNUNET_break (NULL == signature);
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
	      "Comparing results name %s\n", 
	      name);
  if (0 == strcmp (name, s_name_1))
  {
    if (GNUNET_YES != GNUNET_NAMESTORE_records_cmp(rd, s_rd_1))
      GNUNET_break (0);
  }
  if (0 == strcmp (name, s_name_2))
  {
    if (GNUNET_YES != GNUNET_NAMESTORE_records_cmp(rd, s_rd_2))
      GNUNET_break (0);
  }
  if (0 == strcmp (name, s_name_3))
  {
    if (GNUNET_YES != GNUNET_NAMESTORE_records_cmp(rd, s_rd_3))
      GNUNET_break (0);
  }
  if (3 == ++returned_records)
  {  
    if (endbadly_task != GNUNET_SCHEDULER_NO_TASK)
    {
      GNUNET_SCHEDULER_cancel (endbadly_task);
      endbadly_task = GNUNET_SCHEDULER_NO_TASK;
    }    
    GNUNET_SCHEDULER_add_now (&end, NULL);
  }
}


static void
put_cont (void *cls, int32_t success, const char *emsg)
{
  static int c = 0;

  if (success == GNUNET_OK)
  {
    c++;
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created record %u\n", c);
  }
  else
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to created records\n");
    GNUNET_break (0);
    GNUNET_SCHEDULER_cancel (endbadly_task);
    endbadly_task = GNUNET_SCHEDULER_add_now (&endbadly, NULL);
  }
}


static struct GNUNET_NAMESTORE_RecordData *
create_record (unsigned int count)
{
  unsigned int c;
  struct GNUNET_NAMESTORE_RecordData * rd;

  rd = GNUNET_malloc (count * sizeof (struct GNUNET_NAMESTORE_RecordData));
  for (c = 0; c < count; c++)
  {
    rd[c].expiration_time = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_HOURS).abs_value_us;
    rd[c].record_type = 1111;
    rd[c].data_size = 50;
    rd[c].data = GNUNET_malloc(50);
    memset ((char *) rd[c].data, 'a', 50);
  }
  return rd;
}


static void
run (void *cls, 
     const struct GNUNET_CONFIGURATION_Handle *cfg,
     struct GNUNET_TESTING_Peer *peer)
{
  char *hostkey_file;
  struct GNUNET_TIME_Absolute et;

  res = 1;
  returned_records = 0;
  zm = GNUNET_NAMESTORE_zone_monitor_start (cfg,
					    NULL,
					    &zone_proc,
					    NULL,
					    NULL);
  if (NULL == zm)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to create zone monitor\n");
    GNUNET_break (0);
    endbadly_task = GNUNET_SCHEDULER_add_now (&endbadly, NULL);
    return;
  }
  endbadly_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &endbadly, NULL);
  nsh = GNUNET_NAMESTORE_connect (cfg);
  GNUNET_break (NULL != nsh);

  GNUNET_asprintf(&hostkey_file,
		  "zonefiles%s%s",
		  DIR_SEPARATOR_STR,
		  "N0UJMP015AFUNR2BTNM3FKPBLG38913BL8IDMCO2H0A1LIB81960.zkey");
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
	      "Using zonekey file `%s' \n", hostkey_file);
  privkey = GNUNET_CRYPTO_ecc_key_create_from_file(hostkey_file);
  GNUNET_free (hostkey_file);
  GNUNET_assert (privkey != NULL);
  GNUNET_CRYPTO_ecc_key_get_public(privkey, &pubkey);
  GNUNET_CRYPTO_hash(&pubkey, sizeof (pubkey), &zone);

  GNUNET_asprintf(&hostkey_file,"zonefiles%s%s",
		  DIR_SEPARATOR_STR,
		  "HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey");
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Using zonekey file `%s' \n", hostkey_file);
  privkey2 = GNUNET_CRYPTO_ecc_key_create_from_file(hostkey_file);
  GNUNET_free (hostkey_file);

  GNUNET_assert (privkey2 != NULL);
  GNUNET_CRYPTO_ecc_key_get_public(privkey2, &pubkey2);
  GNUNET_CRYPTO_hash(&pubkey2, sizeof (pubkey), &zone2);

  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created record 1\n");

  GNUNET_asprintf(&s_name_1, "dummy1");
  s_rd_1 = create_record(1);
  et.abs_value_us = s_rd_1->expiration_time;
  sig_1 = GNUNET_NAMESTORE_create_signature(privkey, et, s_name_1, s_rd_1, 1);
  GNUNET_NAMESTORE_record_put_by_authority (nsh, privkey, s_name_1, 
					    1, s_rd_1, 
					    &put_cont, NULL);


  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created record 2 \n");
  GNUNET_asprintf(&s_name_2, "dummy2");
  s_rd_2 = create_record(1);

  et.abs_value_us = s_rd_2->expiration_time;
  sig_2 = GNUNET_NAMESTORE_create_signature(privkey, et, s_name_2, s_rd_2, 1);
  GNUNET_NAMESTORE_record_put_by_authority (nsh, privkey, s_name_2,
					    1, s_rd_2, 
					    &put_cont, NULL);

  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created record 3\n");
  /* name in different zone */
  GNUNET_asprintf(&s_name_3, "dummy3");
  s_rd_3 = create_record(1);
  et.abs_value_us = s_rd_3->expiration_time;
  sig_3 = GNUNET_NAMESTORE_create_signature(privkey2, et, s_name_3, s_rd_3, 1);
  GNUNET_NAMESTORE_record_put (nsh, &pubkey2, s_name_3, 
			       GNUNET_TIME_UNIT_FOREVER_ABS, 1, s_rd_3, sig_3, 
			       &put_cont, NULL);
}


int
main (int argc, char *argv[])
{
  res = 1;
  if (0 != 
      GNUNET_TESTING_service_run ("test-namestore-api-monitoring",
				  "namestore",
				  "test_namestore_api.conf",
				  &run,
				  NULL))
    return 1;
  return res;
}


/* end of test_namestore_api_monitoring.c */