/*
     This file is part of GNUnet.
     Copyright (C) 2012 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_lookup_nick.c
 * @brief testcase for namestore_api.c: NICK records
 */
#include "platform.h"
#include "gnunet_namestore_service.h"
#include "gnunet_testing_lib.h"
#include "gnunet_dnsparser_lib.h"

#define TEST_RECORD_TYPE GNUNET_DNSPARSER_TYPE_TXT

#define TEST_RECORD_DATALEN 123

#define TEST_NICK "gnunettestnick"

#define TEST_RECORD_DATA 'a'

#define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)

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 int res;

static struct GNUNET_GNSRECORD_Data rd_orig;

static struct GNUNET_NAMESTORE_QueueEntry *nsqe;

//static const char * name = "dummy.dummy.gnunet";
static const char * name = "d";


static void
cleanup()
{
  GNUNET_free_non_null((void *)rd_orig.data);
  if (NULL != nsh)
    {
      GNUNET_NAMESTORE_disconnect(nsh);
      nsh = NULL;
    }
  if (NULL != privkey)
    {
      GNUNET_free(privkey);
      privkey = NULL;
    }
  GNUNET_SCHEDULER_shutdown();
}


/**
 * Re-establish the connection to the service.
 *
 * @param cls handle to use to re-connect.
 * @param tc scheduler context
 */
static void
endbadly(void *cls)
{
  if (NULL != nsqe)
    {
      GNUNET_NAMESTORE_cancel(nsqe);
      nsqe = NULL;
    }
  cleanup();
  res = 1;
}


static void
end(void *cls)
{
  cleanup();
  res = 0;
}


static void
lookup_it(void *cls,
          const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
          const char *label,
          unsigned int rd_count,
          const struct GNUNET_GNSRECORD_Data *rd)
{
  nsqe = NULL;
  int c;
  int found_record = GNUNET_NO;
  int found_nick = GNUNET_NO;

  if (0 != GNUNET_memcmp(privkey, zone))
    {
      GNUNET_break(0);
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
      return;
    }

  if (NULL == label)
    {
      GNUNET_break(0);
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
      return;
    }

  if (0 != strcmp(label, name))
    {
      GNUNET_break(0);
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
      return;
    }

  if (2 != rd_count)
    {
      GNUNET_break(0);
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
      return;
    }

  for (c = 0; c < rd_count; c++)
    {
      if (GNUNET_GNSRECORD_TYPE_NICK == rd[c].record_type)
        {
          if (rd[c].data_size != strlen(TEST_NICK) + 1)
            {
              GNUNET_break(0);
              GNUNET_SCHEDULER_cancel(endbadly_task);
              endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
              return;
            }
          if (0 != (rd[c].flags & GNUNET_GNSRECORD_RF_PRIVATE))
            {
              GNUNET_break(0);
              GNUNET_SCHEDULER_cancel(endbadly_task);
              endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
              return;
            }
          if (0 != strcmp(rd[c].data, TEST_NICK))
            {
              GNUNET_SCHEDULER_cancel(endbadly_task);
              endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
              return;
            }
          found_nick = GNUNET_YES;
        }
      else
        {
          if (rd[c].record_type != TEST_RECORD_TYPE)
            {
              GNUNET_break(0);
              GNUNET_SCHEDULER_cancel(endbadly_task);
              endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
              return;
            }
          if (rd[c].data_size != TEST_RECORD_DATALEN)
            {
              GNUNET_break(0);
              GNUNET_SCHEDULER_cancel(endbadly_task);
              endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
              return;
            }
          if (0 != memcmp(rd[c].data, rd_orig.data, TEST_RECORD_DATALEN))
            {
              GNUNET_break(0);
              GNUNET_SCHEDULER_cancel(endbadly_task);
              endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
              return;
            }
          if (rd[c].flags != rd->flags)
            {
              GNUNET_break(0);
              GNUNET_SCHEDULER_cancel(endbadly_task);
              endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
              return;
            }
          found_record = GNUNET_YES;
        }
    }

  /* Done */
  if ((GNUNET_YES == found_nick) && (GNUNET_YES == found_record))
    {
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = NULL;
      GNUNET_SCHEDULER_add_now(&end, NULL);
    }
  else
    {
      GNUNET_break(0);
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = NULL;
      GNUNET_SCHEDULER_add_now(&endbadly, NULL);
    }
}


static void
fail_cb(void *cls)
{
  GNUNET_assert(0);
}


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

  nsqe = NULL;
  GNUNET_assert(NULL != cls);
  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
             "Name store added record for `%s': %s\n",
             name,
             (success == GNUNET_OK) ? "SUCCESS" : "FAIL");

  if (GNUNET_OK != success)
    {
      GNUNET_SCHEDULER_cancel(endbadly_task);
      endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
      return;
    }
  /* Lookup */
  nsqe = GNUNET_NAMESTORE_records_lookup(nsh,
                                         privkey,
                                         name,
                                         &fail_cb,
                                         NULL,
                                         &lookup_it,
                                         NULL);
}


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

  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
             "Nick added : %s\n",
             (success == GNUNET_OK) ? "SUCCESS" : "FAIL");

  rd_orig.expiration_time = GNUNET_TIME_absolute_get().abs_value_us;
  rd_orig.record_type = TEST_RECORD_TYPE;
  rd_orig.data_size = TEST_RECORD_DATALEN;
  rd_orig.data = GNUNET_malloc(TEST_RECORD_DATALEN);
  rd_orig.flags = 0;
  memset((char *)rd_orig.data, 'a', TEST_RECORD_DATALEN);

  nsqe = GNUNET_NAMESTORE_records_store(nsh, privkey, name,
                                        1, &rd_orig, &put_cont, (void *)name);
}


static void
run(void *cls,
    const struct GNUNET_CONFIGURATION_Handle *cfg,
    struct GNUNET_TESTING_Peer *peer)
{
  endbadly_task = GNUNET_SCHEDULER_add_delayed(TIMEOUT,
                                               &endbadly,
                                               NULL);
  privkey = GNUNET_CRYPTO_ecdsa_key_create();
  GNUNET_assert(privkey != NULL);
  GNUNET_CRYPTO_ecdsa_key_get_public(privkey,
                                     &pubkey);

  nsh = GNUNET_NAMESTORE_connect(cfg);
  GNUNET_break(NULL != nsh);

  nsqe = GNUNET_NAMESTORE_set_nick(nsh,
                                   privkey,
                                   TEST_NICK,
                                   &nick_cont,
                                   (void *)name);
  if (NULL == nsqe)
    {
      GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
                 _("Namestore cannot store no block\n"));
    }
}

#include "test_common.c"


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

  SETUP_CFG(plugin_name, cfg_name);
  res = 1;
  if (0 !=
      GNUNET_TESTING_peer_run("test-namestore-api-lookup-nick",
                              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_store.c */