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/*
This file is part of TALER
(C) 2022-2024 Taler Systems SA
TALER 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, 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 taler-merchant-httpd_private-get-categories-ID.c
* @brief implement GET /private/categories/$ID
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler-merchant-httpd_private-get-categories-ID.h"
#include <taler/taler_json_lib.h>
/**
* Handle a GET "/private/categories/$ID" request.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] hc context with further information about the request
* @return MHD result code
*/
MHD_RESULT
TMH_private_get_categories_ID (
const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc)
{
struct TMH_MerchantInstance *mi = hc->instance;
enum GNUNET_DB_QueryStatus qs;
unsigned long long cnum;
char dummy;
struct TALER_MERCHANTDB_CategoryDetails cd;
size_t num_products = 0;
char *products = NULL;
GNUNET_assert (NULL != mi);
GNUNET_assert (NULL != hc->infix);
if (1 != sscanf (hc->infix,
"%llu%c",
&cnum,
&dummy))
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (
connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"category_id must be a number");
}
qs = TMH_db->select_category (TMH_db->cls,
mi->settings.id,
cnum,
&cd,
&num_products,
&products);
if (0 > qs)
{
GNUNET_break (0);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_FETCH_FAILED,
"select_category");
}
if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
{
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_NOT_FOUND,
TALER_EC_MERCHANT_GENERIC_CATEGORY_UNKNOWN,
hc->infix);
}
{
MHD_RESULT ret;
json_t *jproducts;
const char *pos = products;
jproducts = json_array ();
GNUNET_assert (NULL != jproducts);
for (unsigned int i = 0; i<num_products; i++)
{
const char *product_id = pos;
json_t *jprod;
pos = pos + strlen (product_id) + 1;
jprod = GNUNET_JSON_PACK (
GNUNET_JSON_pack_string ("product_id",
product_id));
GNUNET_assert (0 ==
json_array_append_new (jproducts,
jprod));
}
GNUNET_free (products);
ret = TALER_MHD_REPLY_JSON_PACK (
connection,
MHD_HTTP_OK,
GNUNET_JSON_pack_string ("name",
cd.category_name),
GNUNET_JSON_pack_allow_null (
GNUNET_JSON_pack_object_incref ("name_i18n",
cd.category_name_i18n)),
GNUNET_JSON_pack_array_steal ("products",
jproducts));
TALER_MERCHANTDB_category_details_free (&cd);
return ret;
}
}
/* end of taler-merchant-httpd_private-get-categories-ID.c */
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