/*
   This file is part of TALER
   Copyright (C) 2023, 2024, 2025 Taler Systems SA

   TALER 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.

   TALER 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
   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
 */
/**
 * @file src/backenddb/get_token_family.c
 * @brief Implementation of the get_token_family function for Postgres
 * @author Christian Grothoff
 */
#include "platform.h"
#include <taler/taler_pq_lib.h>
#include "merchant-database/get_token_family.h"
#include "helper.h"


enum GNUNET_DB_QueryStatus
TALER_MERCHANTDB_get_token_family (
  struct TALER_MERCHANTDB_PostgresContext *pg,
  const char *instance_id,
  const char *token_family_slug,
  struct TALER_MERCHANTDB_TokenFamilyDetails *details)
{
  struct GNUNET_PQ_QueryParam params[] = {
    GNUNET_PQ_query_param_string (token_family_slug),
    GNUNET_PQ_query_param_end
  };
  char *kind;
  struct GNUNET_PQ_ResultSpec rs[] = {
    GNUNET_PQ_result_spec_string ("slug",
                                  &details->slug),
    GNUNET_PQ_result_spec_string ("name",
                                  &details->name),
    GNUNET_PQ_result_spec_string ("cipher_choice",
                                  &details->cipher_spec),
    GNUNET_PQ_result_spec_string ("description",
                                  &details->description),
    TALER_PQ_result_spec_json ("description_i18n",
                               &details->description_i18n),
    GNUNET_PQ_result_spec_allow_null (
      TALER_PQ_result_spec_json ("extra_data",
                                 &details->extra_data),
      NULL),
    GNUNET_PQ_result_spec_timestamp ("valid_after",
                                     &details->valid_after),
    GNUNET_PQ_result_spec_timestamp ("valid_before",
                                     &details->valid_before),
    GNUNET_PQ_result_spec_relative_time ("duration",
                                         &details->duration),
    GNUNET_PQ_result_spec_relative_time ("validity_granularity",
                                         &details->validity_granularity),
    GNUNET_PQ_result_spec_relative_time ("start_offset",
                                         &details->start_offset),
    GNUNET_PQ_result_spec_string ("kind",
                                  &kind),
    GNUNET_PQ_result_spec_uint64 ("issued",
                                  &details->issued),
    GNUNET_PQ_result_spec_uint64 ("used",
                                  &details->used),
    GNUNET_PQ_result_spec_end
  };
  enum GNUNET_DB_QueryStatus qs;

  GNUNET_assert (NULL != pg->current_merchant_id);
  GNUNET_assert (0 == strcmp (instance_id,
                              pg->current_merchant_id));
  TMH_PQ_prepare_anon (pg,
                       "SELECT"
                       " slug"
                       ",name"
                       ",cipher_choice"
                       ",description"
                       ",description_i18n::TEXT"
                       ",extra_data::TEXT"
                       ",valid_after"
                       ",valid_before"
                       ",duration"
                       ",validity_granularity"
                       ",start_offset"
                       ",kind"
                       ",issued"
                       ",used"
                       " FROM merchant_token_families"
                       " WHERE slug=$1");
  memset (details,
          0,
          sizeof (*details));
  qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
                                                 "",
                                                 params,
                                                 rs);
  if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
  {
    if (0 == strcmp (kind,
                     "discount"))
      details->kind = TALER_MERCHANTDB_TFK_Discount;
    else if (0 == strcmp (kind,
                          "subscription"))
      details->kind = TALER_MERCHANTDB_TFK_Subscription;
    else
    {
      GNUNET_break (0);
      GNUNET_PQ_cleanup_result (rs);
      return GNUNET_DB_STATUS_HARD_ERROR;
    }
    GNUNET_free (kind);
  }
  return qs;
}
