/*
   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/auditordb/gc.c
 * @brief Implementation of the gc function for Postgres
 * @author Christian Grothoff
 */
#include "taler/taler_pq_lib.h"
#include "auditor-database/gc.h"
#include "pg_helper.h"


enum GNUNET_GenericReturnValue
TALER_AUDITORDB_gc (struct TALER_AUDITORDB_PostgresContext *pg)
{
  /* For now, we hard-code the cut-off date based on the
     common legal requirement to keep data for 10 years.
     Might make it configurable in the future. */
  struct GNUNET_TIME_Absolute cutoff
    = GNUNET_TIME_absolute_subtract (
        GNUNET_TIME_absolute_get (),
        GNUNET_TIME_relative_multiply (
          GNUNET_TIME_UNIT_YEARS,
          10));
  struct GNUNET_PQ_QueryParam params_time[] = {
    GNUNET_PQ_query_param_absolute_time (&cutoff),
    GNUNET_PQ_query_param_end
  };
  enum GNUNET_DB_QueryStatus qs;

  if (GNUNET_OK !=
      GNUNET_PQ_prepare_anon (pg->conn,
                              "CALL auditor_do_gc_auditor($1);"))
  {
    GNUNET_break (0);
    return GNUNET_SYSERR;
  }
  qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
                                           "",
                                           params_time);
  if (0 > qs)
  {
    GNUNET_break (0);
    return GNUNET_SYSERR;
  }
  return GNUNET_OK;
}
