/*
     This file is part of GNUnet.
     Copyright (C) 2009 GNUnet e.V.

     GNUnet is free software: you can redistribute it and/or modify it
     under the terms of the GNU Affero General Public License as published
     by the Free Software Foundation, either version 3 of the License,
     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
     Affero General Public License for more details.

     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.

     SPDX-License-Identifier: AGPL3.0-or-later
 */
/**
 * @file namestore/test_namestore_api_zone_to_name.c
 * @brief testcase for zone to name translation
 */
#include "platform.h"
#include "gnunet_namestore_service.h"
#include "gnunet_testing_lib.h"
#include "namestore.h"
#include "gnunet_dnsparser_lib.h"

#define TEST_RECORD_TYPE GNUNET_DNSPARSER_TYPE_TXT

#define RECORDS 5

#define TEST_RECORD_DATALEN 123

#define TEST_RECORD_DATA 'a'

#define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 100)


static struct GNUNET_NAMESTORE_Handle *nsh;

static struct GNUNET_SCHEDULER_Task *endbadly_task;

static struct GNUNET_CRYPTO_EcdsaPrivateKey *privkey;

static struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;

static struct GNUNET_CRYPTO_EcdsaPublicKey s_zone_value;

static char * s_name;

static int res;

static struct GNUNET_NAMESTORE_QueueEntry *qe;


/**
 * Re-establish the connection to the service.
 *
 * @param cls handle to use to re-connect.
 */
static void
endbadly(void *cls)
{
  (void)cls;
  GNUNET_SCHEDULER_shutdown();
  res = 1;
}


static void
end(void *cls)
{
  if (NULL != qe)
    {
      GNUNET_NAMESTORE_cancel(qe);
      qe = NULL;
    }
  if (NULL != endbadly_task)
    {
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = NULL;
    }
  if (NULL != privkey)
    {
      GNUNET_free(privkey);
      privkey = NULL;
    }
  if (NULL != nsh)
    {
      GNUNET_NAMESTORE_disconnect(nsh);
      nsh = NULL;
    }
}


static void
zone_to_name_proc(void *cls,
                  const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone_key,
                  const char *n,
                  unsigned int rd_count,
                  const struct GNUNET_GNSRECORD_Data *rd)
{
  int fail = GNUNET_NO;

  qe = NULL;
  if ((NULL == zone_key) &&
      (NULL == n) &&
      (0 == rd_count) &&
      (NULL == rd))
    {
      GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
                 "No result found\n");
      res = 1;
    }
  else
    {
      GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
                 "Result found: `%s'\n",
                 n);
      if ((NULL == n) ||
          (0 != strcmp(n,
                       s_name)))
        {
          fail = GNUNET_YES;
          GNUNET_break(0);
        }
      if (1 != rd_count)
        {
          fail = GNUNET_YES;
          GNUNET_break(0);
        }
      if ((NULL == zone_key) ||
          (0 != GNUNET_memcmp(zone_key,
                              privkey)))
        {
          fail = GNUNET_YES;
          GNUNET_break(0);
        }
      if (fail == GNUNET_NO)
        res = 0;
      else
        res = 1;
    }
  GNUNET_SCHEDULER_add_now(&end,
                           NULL);
}


static void
error_cb(void *cls)
{
  (void)cls;
  qe = NULL;
  GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
             "Not found!\n");
  GNUNET_SCHEDULER_shutdown();
  res = 2;
}


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

  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
             "Name store added record for `%s': %s\n",
             name,
             (success == GNUNET_OK) ? "SUCCESS" : emsg);
  if (success == GNUNET_OK)
    {
      res = 0;

      qe = GNUNET_NAMESTORE_zone_to_name(nsh,
                                         privkey,
                                         &s_zone_value,
                                         &error_cb,
                                         NULL,
                                         &zone_to_name_proc,
                                         NULL);
    }
  else
    {
      res = 1;
      GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
                 "Failed to put records for name `%s'\n",
                 name);
      GNUNET_SCHEDULER_add_now(&end,
                               NULL);
    }
}


static void
run(void *cls,
    const struct GNUNET_CONFIGURATION_Handle *cfg,
    struct GNUNET_TESTING_Peer *peer)
{
  (void)cls;
  (void)peer;
  endbadly_task = GNUNET_SCHEDULER_add_delayed(TIMEOUT,
                                               &endbadly,
                                               NULL);
  GNUNET_SCHEDULER_add_shutdown(&end,
                                NULL);
  GNUNET_asprintf(&s_name, "dummy");
  privkey = GNUNET_CRYPTO_ecdsa_key_create();
  GNUNET_assert(NULL != privkey);
  /* get public key */
  GNUNET_CRYPTO_ecdsa_key_get_public(privkey,
                                     &pubkey);

  GNUNET_CRYPTO_random_block(GNUNET_CRYPTO_QUALITY_WEAK,
                             &s_zone_value,
                             sizeof(s_zone_value));
  {
    struct GNUNET_GNSRECORD_Data rd;

    rd.expiration_time = GNUNET_TIME_absolute_get().abs_value_us;
    rd.record_type = GNUNET_GNSRECORD_TYPE_PKEY;
    rd.data_size = sizeof(s_zone_value);
    rd.data = &s_zone_value;
    rd.flags = 0;

    nsh = GNUNET_NAMESTORE_connect(cfg);
    GNUNET_break(NULL != nsh);
    GNUNET_NAMESTORE_records_store(nsh,
                                   privkey,
                                   s_name,
                                   1,
                                   &rd,
                                   &put_cont,
                                   NULL);
  }
}


#include "test_common.c"


int
main(int argc,
     char *argv[])
{
  const char *plugin_name;
  char *cfg_name;

  (void)argc;
  SETUP_CFG(plugin_name, cfg_name);
  res = 1;
  if (0 !=
      GNUNET_TESTING_peer_run("test-namestore-api-zone-to-name",
                              cfg_name,
                              &run,
                              NULL))
    {
      res = 1;
    }
  GNUNET_DISK_purge_cfg_dir(cfg_name,
                            "GNUNET_TEST_HOME");
  GNUNET_free(cfg_name);
  return res;
}

/* end of test_namestore_api_zone_to_name.c */