/*
   This file is part of TALER
   Copyright (C) 2026 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/iterate_aggregation_wtids_above_serial_id.h
 * @brief implementation of the iterate_aggregation_wtids_above_serial_id function
 * @author Christian Grothoff
 */
#ifndef EXCHANGE_DATABASE_ITERATE_AGGREGATION_WTIDS_ABOVE_SERIAL_ID_H
#define EXCHANGE_DATABASE_ITERATE_AGGREGATION_WTIDS_ABOVE_SERIAL_ID_H

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


#ifndef TALER_EXCHANGEDB_AGGREGATION_WTID_RESULT_CLOSURE
/**
 * Type of the closure for #TALER_EXCHANGEDB_AggregationWtidCallback.
 */
#define TALER_EXCHANGEDB_AGGREGATION_WTID_RESULT_CLOSURE void
#endif


/**
 * Function called on each row of the aggregation tracking table, telling
 * the caller which wire transfer the aggregated deposit was assigned to.
 *
 * Note that many rows share the same @a wtid: one wire transfer pays out
 * many deposits.
 *
 * @param cls closure
 * @param rowid row of the entry in the aggregation tracking table
 * @param wtid wire transfer the deposit was aggregated into
 * @param wire_target_h_payto account the wire transfer should go to
 * @param pending false if @a wtid already has its `wire_out` row, that is if
 *        the exchange really did make the transfer
 * @return #GNUNET_OK to continue to iterate
 */
typedef enum GNUNET_GenericReturnValue
(*TALER_EXCHANGEDB_AggregationWtidCallback)(
  TALER_EXCHANGEDB_AGGREGATION_WTID_RESULT_CLOSURE *cls,
  uint64_t rowid,
  const struct TALER_WireTransferIdentifierRawP *wtid,
  const struct TALER_FullPaytoHashP *wire_target_h_payto,
  bool pending);


/**
 * Select all aggregations at or above @a serial_id, in ascending 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 query status
 */
enum GNUNET_DB_QueryStatus
TALER_EXCHANGEDB_iterate_aggregation_wtids_above_serial_id (
  struct TALER_EXCHANGEDB_PostgresContext *pg,
  uint64_t serial_id,
  TALER_EXCHANGEDB_AggregationWtidCallback cb,
  TALER_EXCHANGEDB_AGGREGATION_WTID_RESULT_CLOSURE *cb_cls);

#endif
