/*
   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/include/exchange-database/get_exists_deposit.h
 * @brief implementation of the get_exists_deposit function for Postgres
 * @author Christian Grothoff
 */
#ifndef EXCHANGE_DATABASE_GET_EXISTS_DEPOSIT_H
#define EXCHANGE_DATABASE_GET_EXISTS_DEPOSIT_H

#include "taler/taler_util.h"
#include "taler/taler_json_lib.h"
#include "exchangedb_lib.h"


/**
 * Check if we have the specified deposit already in the database.
 *
 * @param pg the database context
 * @param h_contract_terms contract to check for
 * @param h_wire wire hash to check for
 * @param coin_pub public key of the coin to check for
 * @param merchant merchant public key to check for
 * @param refund_deadline expected refund deadline
 * @param[out] deposit_fee set to the deposit fee the exchange charged
 * @param[out] exchange_timestamp set to the time when the exchange received the deposit
 * @return 1 if we know this operation,
 *         0 if this exact deposit is unknown to us,
 *         otherwise transaction error status
 */
enum GNUNET_DB_QueryStatus
TALER_EXCHANGEDB_get_exists_deposit (struct TALER_EXCHANGEDB_PostgresContext *pg
                                     ,
                                     const struct TALER_PrivateContractHashP *
                                     h_contract_terms,
                                     const struct TALER_MerchantWireHashP *
                                     h_wire,
                                     const struct TALER_CoinSpendPublicKeyP *
                                     coin_pub
                                     ,
                                     const struct TALER_MerchantPublicKeyP *
                                     merchant,
                                     struct GNUNET_TIME_Timestamp
                                     refund_deadline,
                                     struct TALER_Amount *deposit_fee,
                                     struct GNUNET_TIME_Timestamp *
                                     exchange_timestamp
                                     );

#endif
