/*
   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 src/backenddb/insert_refund_by_coin.c
 * @brief Implementation of the insert_refund_by_coin function for Postgres
 * @author Iván Ávalos
 */
#include "platform.h"
#include <taler/taler_pq_lib.h>
#include "merchant-database/insert_refund_by_coin.h"
#include "helper.h"


enum GNUNET_DB_QueryStatus
TALER_MERCHANTDB_insert_refund_by_coin (
  struct TALER_MERCHANTDB_PostgresContext *pg,
  const char *instance_id,
  const struct TALER_PrivateContractHashP *h_contract_terms,
  struct GNUNET_TIME_Timestamp refund_timestamp,
  const struct TALER_CoinSpendPublicKeyP *coin_pub,
  const char *reason)
{
  struct GNUNET_PQ_QueryParam params[] = {
    GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
    GNUNET_PQ_query_param_timestamp (&refund_timestamp),
    GNUNET_PQ_query_param_auto_from_type (coin_pub),
    GNUNET_PQ_query_param_string (reason),
    GNUNET_PQ_query_param_end
  };

  GNUNET_assert (NULL != pg->current_merchant_id);
  GNUNET_assert (0 == strcmp (instance_id,
                              pg->current_merchant_id));
  TMH_PQ_prepare_anon (pg,
                       "INSERT INTO merchant_refunds"
                       "(order_serial"
                       ",rtransaction_id"
                       ",refund_timestamp"
                       ",coin_pub"
                       ",reason"
                       ",refund_amount"
                       ") "
                       "SELECT "
                       " dcon.order_serial"
                       ",0" /* rtransaction_id always 0 for /abort */
                       ",$2"
                       ",dep.coin_pub"
                       ",$4"
                       ",dep.amount_with_fee"
                       " FROM merchant_deposits dep"
                       " JOIN merchant_deposit_confirmations dcon"
                       "   USING (deposit_confirmation_serial)"
                       " WHERE dep.coin_pub=$3"
                       "   AND dcon.order_serial="
                       "  (SELECT order_serial"
                       "     FROM merchant_contract_terms"
                       "    WHERE h_contract_terms=$1)");
  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
                                             "",
                                             params);
}
