Zabbix

<?php declare(strict_types = 0);

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** This program 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

​

final class CSlaHelper {

​

    public const SLA_STATUS_ANY         = -1;

    public const SLA_STATUS_ENABLED     = ZBX_SLA_STATUS_ENABLED;

    public const SLA_STATUS_DISABLED    = ZBX_SLA_STATUS_DISABLED;

​

    public const SCHEDULE_MODE_24X7     = 0;

    public const SCHEDULE_MODE_CUSTOM   = 1;

​

    /**

     * @return array

     */

    public static function getPeriodNames(): array {

        static $period_names;

​

        if ($period_names === null) {

            $period_names = [

                ZBX_SLA_PERIOD_DAILY => _('Daily'),

                ZBX_SLA_PERIOD_WEEKLY => _('Weekly'),

                ZBX_SLA_PERIOD_MONTHLY => _('Monthly'),

                ZBX_SLA_PERIOD_QUARTERLY => _('Quarterly'),

                ZBX_SLA_PERIOD_ANNUALLY => _('Annually')

            ];

        }

​

        return $period_names;

    }

​

    /**

     * @param bool $compact

     *

     * @return array

     */

    public static function getReportNames(bool $compact = false): array {

        static $report_names;

​

        if ($report_names === null) {

            $report_names = [

                'default' => [

                    ZBX_SLA_PERIOD_DAILY => _('Day'),

                    ZBX_SLA_PERIOD_WEEKLY => _('Week'),

                    ZBX_SLA_PERIOD_MONTHLY => _('Month'),

                    ZBX_SLA_PERIOD_QUARTERLY => _('Quarter'),

                    ZBX_SLA_PERIOD_ANNUALLY => _('Year')

                ],

                'compact' => [

                    ZBX_SLA_PERIOD_DAILY => _x('Day', 'compact table header'),

                    ZBX_SLA_PERIOD_WEEKLY => _x('Week', 'compact table header'),

                    ZBX_SLA_PERIOD_MONTHLY => _x('Month', 'compact table header'),

                    ZBX_SLA_PERIOD_QUARTERLY => _x('Quarter', 'compact table header'),

                    ZBX_SLA_PERIOD_ANNUALLY => _x('Year', 'compact table header')

                ]

            ];

        }

​

        return $report_names[$compact ? 'compact' : 'default'];

    }

​

    /**

     * @param array $schedule

     *

     * @throws Exception

     * @return array

     */

    public static function getSchedulePeriods(array $schedule): array {

        $schedule_periods = array_fill(0, 7, '');

​

        for ($weekday = 0; $weekday < 7; $weekday++) {

            foreach ($schedule as $schedule_row) {

                $period_from = max(SEC_PER_DAY * $weekday, $schedule_row['period_from']);

                $period_to = min(SEC_PER_DAY * ($weekday + 1), $schedule_row['period_to']);

​

                if ($period_to <= $period_from) {

                    continue;

                }