/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include "condition.h"
#include "unit.h"

bool condition_test_list(const char *unit, Condition *first) {
        Condition *c;
        int triggered = -1;

        /* If the condition list is empty, then it is true */
        if (!first)
                return true;

        /* Otherwise, if all of the non-trigger conditions apply and
         * if any of the trigger conditions apply (unless there are
         * none) we return true */
        LIST_FOREACH(conditions, c, first) {
                int r;

                r = condition_test(c);
                if (r < 0)
                        log_warning_unit(unit,
                                         "Couldn't determine result for %s=%s%s%s for %s, assuming failed: %s",
                                         condition_type_to_string(c->type),
                                         c->trigger ? "|" : "",
                                         c->negate ? "!" : "",
                                         c->parameter,
                                         unit,
                                         strerror(-r));
                else
                        log_debug_unit(unit,
                                       "%s=%s%s%s %s for %s.",
                                       condition_type_to_string(c->type),
                                       c->trigger ? "|" : "",
                                       c->negate ? "!" : "",
                                       c->parameter,
                                       condition_result_to_string(c->result),
                                       unit);

                if (!c->trigger && r <= 0)
                        return false;

                if (c->trigger && triggered <= 0)
                        triggered = r > 0;
        }

        return triggered != 0;
}