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/*
This file is part of TALER
Copyright (C) 2022 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 exchangedb/pg_do_refund.c
* @brief Implementation of the do_refund function for Postgres
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_error_codes.h"
#include "taler_dbevents.h"
#include "taler_pq_lib.h"
#include "pg_do_refund.h"
#include "pg_helper.h"
#include "pg_compute_shard.h"
enum GNUNET_DB_QueryStatus
TEH_PG_do_refund (
void *cls,
const struct TALER_EXCHANGEDB_Refund *refund,
const struct TALER_Amount *deposit_fee,
uint64_t known_coin_id,
bool *not_found,
bool *refund_ok,
bool *gone,
bool *conflict)
{
struct PostgresClosure *pg = cls;
uint64_t deposit_shard = TEH_PG_compute_shard (&refund->details.merchant_pub);
struct TALER_Amount amount_without_fee;
struct GNUNET_PQ_QueryParam params[] = {
TALER_PQ_query_param_amount (pg->conn,
&refund->details.refund_amount),
TALER_PQ_query_param_amount (pg->conn,
&amount_without_fee),
TALER_PQ_query_param_amount (pg->conn,
deposit_fee),
GNUNET_PQ_query_param_auto_from_type (&refund->details.h_contract_terms),
GNUNET_PQ_query_param_uint64 (&refund->details.rtransaction_id),
GNUNET_PQ_query_param_uint64 (&deposit_shard),
GNUNET_PQ_query_param_uint64 (&known_coin_id),
GNUNET_PQ_query_param_auto_from_type (&refund->coin.coin_pub),
GNUNET_PQ_query_param_auto_from_type (&refund->details.merchant_pub),
GNUNET_PQ_query_param_auto_from_type (&refund->details.merchant_sig),
GNUNET_PQ_query_param_end
};
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_bool ("not_found",
not_found),
GNUNET_PQ_result_spec_bool ("refund_ok",
refund_ok),
GNUNET_PQ_result_spec_bool ("gone",
gone),
GNUNET_PQ_result_spec_bool ("conflict",
conflict),
GNUNET_PQ_result_spec_end
};
if (0 >
TALER_amount_subtract (&amount_without_fee,
&refund->details.refund_amount,
&refund->details.refund_fee))
{
GNUNET_break (0);
return GNUNET_DB_STATUS_HARD_ERROR;
}
PREPARE (pg,
"call_refund",
"SELECT "
" out_not_found AS not_found"
",out_refund_ok AS refund_ok"
",out_gone AS gone"
",out_conflict AS conflict"
" FROM exchange_do_refund"
" ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);");
return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
"call_refund",
params,
rs);
}
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