/*
   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 iterate_account_merges_above_serial_id.h
 * @brief implementation of the iterate_account_merges_above_serial_id function for Postgres
 * @author Christian Grothoff
 */
#ifndef EXCHANGE_DATABASE_ITERATE_ACCOUNT_MERGES_ABOVE_SERIAL_ID_H
#define EXCHANGE_DATABASE_ITERATE_ACCOUNT_MERGES_ABOVE_SERIAL_ID_H

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

/**
 * Function called with details about
 * account merge requests that have been made, with
 * the goal of auditing the account merge execution.
 *
 * @param cls closure
 * @param rowid unique serial ID for the deposit in our DB
 * @param reserve_pub reserve affected by the merge
 * @param purse_pub purse being merged
 * @param h_contract_terms hash over contract of the purse
 * @param purse_expiration when would the purse expire
 * @param amount total amount in the purse
 * @param min_age minimum age of all coins deposited into the purse
 * @param flags how was the purse created
 * @param purse_fee if a purse fee was paid, how high is it
 * @param merge_timestamp when was the merge approved
 * @param reserve_sig signature by reserve approving the merge
 * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
 */
#ifndef TALER_EXCHANGEDB_ACCOUNT_MERGE_RESULT_CLOSURE
/**
 * Type of the closure for #TALER_EXCHANGEDB_AccountMergeCallback.
 */
#define TALER_EXCHANGEDB_ACCOUNT_MERGE_RESULT_CLOSURE void
#endif
typedef enum GNUNET_GenericReturnValue
(*TALER_EXCHANGEDB_AccountMergeCallback)(
  TALER_EXCHANGEDB_ACCOUNT_MERGE_RESULT_CLOSURE *cls,
  uint64_t rowid,
  const struct TALER_ReservePublicKeyP *reserve_pub,
  const struct TALER_PurseContractPublicKeyP *purse_pub,
  const struct TALER_PrivateContractHashP *h_contract_terms,
  struct GNUNET_TIME_Timestamp purse_expiration,
  const struct TALER_Amount *amount,
  uint32_t min_age,
  enum TALER_WalletAccountMergeFlags flags,
  const struct TALER_Amount *purse_fee,
  struct GNUNET_TIME_Timestamp merge_timestamp,
  const struct TALER_ReserveSignatureP *reserve_sig);

/**
 * Select account merges above @a serial_id in monotonically increasing
 * order.
 *
 * @param pg the database context
 * @param serial_id highest serial ID to exclude (select strictly larger)
 * @param cb function to call on each result
 * @param cb_cls closure for @a cb
 * @return transaction status code
 */
enum GNUNET_DB_QueryStatus
TALER_EXCHANGEDB_iterate_account_merges_above_serial_id (struct
                                                         TALER_EXCHANGEDB_PostgresContext
                                                         *
                                                         pg,
                                                         uint64_t serial_id,
                                                         TALER_EXCHANGEDB_AccountMergeCallback
                                                         cb,
                                                         TALER_EXCHANGEDB_ACCOUNT_MERGE_RESULT_CLOSURE
                                                         *cb_cls);

#endif
