/*
     This file is part of GNUnet.
     Copyright (C) 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 peerstore/test_peerstore_api_store.c
 * @brief testcase for peerstore store operation
 */
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_peerstore_service.h"
#include "gnunet_testing_lib.h"


static int ok = 1;

static struct GNUNET_PEERSTORE_Handle *h;
static struct GNUNET_PEERSTORE_IterateContext *ic;

static char *subsystem = "test_peerstore_api_store";
static struct GNUNET_PeerIdentity pid;
static char *key = "test_peerstore_api_store_key";
static char *val1 = "test_peerstore_api_store_val1";
static char *val2 = "test_peerstore_api_store_val2-";
static char *val3 = "test_peerstore_api_store_val3--";

static int count = 0;


static void
finish (void *cls)
{
  GNUNET_PEERSTORE_disconnect (h);
  GNUNET_SCHEDULER_shutdown ();
}


static void
test3_cont2 (void *cls,
             const struct GNUNET_PEERSTORE_Record *record,
             const char *emsg)
{
  if (NULL != emsg)
    return;
  if (NULL != record)
  {
    GNUNET_assert ((strlen (val3) + 1) == record->value_size);
    GNUNET_assert (0 == strcmp ((char *) val3,
                                (char *) record->value));
    count++;
    GNUNET_PEERSTORE_iteration_next (ic, 1);
    return;
  }
  GNUNET_assert (count == 1);
  ok = 0;
  GNUNET_SCHEDULER_add_now (&finish, NULL);
}


static void
test3_cont (void *cls,
            int success)
{
  if (GNUNET_YES != success)
    return;
  count = 0;
  ic = GNUNET_PEERSTORE_iteration_start (h,
                                         subsystem,
                                         &pid,
                                         key,
                                         &test3_cont2,
                                         NULL);
}


/**
 * Replace the previous 2 records
 */
static void
test3 ()
{
  GNUNET_PEERSTORE_store (h,
                          subsystem,
                          &pid,
                          key,
                          val3,
                          strlen (val3) + 1,
                          GNUNET_TIME_UNIT_FOREVER_ABS,
                          GNUNET_PEERSTORE_STOREOPTION_REPLACE,
                          &test3_cont,
                          NULL);
}


static void
test2_cont2 (void *cls,
             const struct GNUNET_PEERSTORE_Record *record,
             const char *emsg)
{
  if (NULL != emsg)
    return;
  if (NULL != record)
  {
    GNUNET_assert (((strlen (val1) + 1) == record->value_size) ||
                   ((strlen (val2) + 1) == record->value_size));
    GNUNET_assert ((0 == strcmp ((char *) val1, (char *) record->value)) ||
                   (0 == strcmp ((char *) val2, (char *) record->value)));
    count++;
    GNUNET_PEERSTORE_iteration_next (ic, 1);
    return;
  }
  GNUNET_assert (count == 2);
  count = 0;
  test3 ();
}


static void
test2_cont (void *cls, int success)
{
  if (GNUNET_YES != success)
    return;
  count = 0;
  ic = GNUNET_PEERSTORE_iteration_start (h,
                                         subsystem,
                                         &pid, key,
                                         &test2_cont2,
                                         NULL);
}


/**
 * Test storing a second value with the same key
 */
void
test2 ()
{
  GNUNET_PEERSTORE_store (h,
                          subsystem,
                          &pid,
                          key,
                          val2,
                          strlen (val2) + 1,
                          GNUNET_TIME_UNIT_FOREVER_ABS,
                          GNUNET_PEERSTORE_STOREOPTION_MULTIPLE,
                          &test2_cont,
                          NULL);
}


static void
test1_cont2 (void *cls,
             const struct GNUNET_PEERSTORE_Record *record,
             const char *emsg)
{
  if (NULL != emsg)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error received: %s\n", emsg);
    return;
  }
  if (NULL != record)
  {
    GNUNET_assert ((strlen (val1) + 1) == record->value_size);
    GNUNET_assert (0 == strcmp ((char *) val1, (char *) record->value));
    count++;
    GNUNET_PEERSTORE_iteration_next (ic, 1);
    return;
  }
  GNUNET_assert (count == 1);
  count = 0;
  test2 ();
}


static void
test1_cont (void *cls, int success)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Store done, ret=%d...\n", success);
  if (GNUNET_YES != success)
    return;
  count = 0;
  ic = GNUNET_PEERSTORE_iteration_start (h,
                                         subsystem,
                                         &pid,
                                         key,
                                         &test1_cont2,
                                         NULL);
}


/**
 * Store a single record
 */
static void
test1 ()
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test1 start\n");
  GNUNET_PEERSTORE_store (h,
                          subsystem,
                          &pid,
                          key,
                          val1,
                          strlen (val1) + 1,
                          GNUNET_TIME_UNIT_FOREVER_ABS,
                          GNUNET_PEERSTORE_STOREOPTION_REPLACE,
                          &test1_cont,
                          NULL);
}


static void
run (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
     struct GNUNET_TESTING_Peer *peer)
{
  h = GNUNET_PEERSTORE_connect (cfg);
  GNUNET_assert (NULL != h);
  memset (&pid, 1, sizeof(pid));
  test1 ();
}


int
main (int argc, char *argv[])
{
  if (0 !=
      GNUNET_TESTING_service_run ("test-gnunet-peerstore",
                                  "peerstore",
                                  "test_peerstore_api_data.conf",
                                  &run, NULL))
    return 1;
  return ok;
}


/* end of test_peerstore_api_store.c */
