<?php
/**
 *
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
 *
 * SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
 * Copyright (C) 2011 - 2018 SalesAgility Ltd.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * 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 http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
 * reasonably feasible for technical reasons, the Appropriate Legal Notices must
 * display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
 */

/**
 * Class AOBH_BusinessHours
 */
class AOBH_BusinessHours extends Basic
{
    public $new_schema = true;
    public $module_dir = 'AOBH_BusinessHours';
    public $object_name = 'AOBH_BusinessHours';
    public $table_name = 'aobh_businesshours';
    public $importable = false;
    public $disable_row_level_security = true;
    public $id;
    public $name;
    public $date_entered;
    public $date_modified;
    public $modified_user_id;
    public $modified_by_name;
    public $created_by;
    public $created_by_name;
    public $description;
    public $deleted;
    public $created_by_link;
    public $modified_user_link;
    public $assigned_user_id;
    public $assigned_user_name;
    public $assigned_user_link;
    public $opening_hours;
    public $closing_hours;
    public $day;
    public $open_status;

    private $cached = array();
    private $businessHoursSet = null;

    /**
     * @param $interface
     *
     * @return bool
     */
    public function bean_implements($interface)
    {
        return false;
    }

    /**
     * @return int
     */
    public function areBusinessHoursSet()
    {
        if ($this->businessHoursSet === null) {
            $this->businessHoursSet = count($this->get_full_list());
        }

        return $this->businessHoursSet;
    }

    /**
     * @param $day
     *
     * @return AOBH_BusinessHours[]
     */
    public function getBusinessHoursForDay($day)
    {
        if (!array_key_exists($day, $this->cached)) {
            $this->cached[$day] = $this->get_full_list('', "day = '".$day."'");
        }

        return $this->cached[$day];
    }

    /**
     * @param $day
     *
     * @return SugarBean
     */
    public function getOrCreate($day)
    {
        $bhList = $this->getBusinessHoursForDay($day);
        if ($bhList) {
            return $bhList[0];
        } else {
            return BeanFactory::newBean('AOBH_BusinessHours');
        }
    }

    /**
     * @param DateTime $datetime
     *
     * @return bool
     */
    private function insideThisBusinessHour(DateTime $datetime)
    {
        if (!$this->open_status) {
            return false;
        }
        $hour = $datetime->format('G');

        return $hour >= $this->opening_hours && $hour < $this->closing_hours;
    }

    /**
     * @param DateTime $startTime
     * @param DateTime $endTime
     *
     * @return int
     */
    public function diffBusinessHours(DateTime $startTime, DateTime $endTime)
    {
        $hours = ($endTime->getTimestamp() - $startTime->getTimestamp()) / (60 * 60);
        $GLOBALS['log']->fatal('-------Hours------->'.$hours);
        $GLOBALS['log']->fatal($startTime->getTimestamp());
        $GLOBALS['log']->fatal($endTime->getTimestamp());

        $sub = $hours < 0;
        $interval = new DateInterval('PT1H');
        if ($sub) {
            $hours = 0 - $hours;
            $interval->invert = 1;
        }
        $businessHours = 0;
        while ($hours > 0) {
            if ($this->insideAnyBusinessHours($startTime)) {
                $startTime->add($interval);
                ++$businessHours;
            } else {
                $startTime->add($interval);
            }
            --$hours;
        }
        if ($sub) {
            $businessHours = 0 - $businessHours;
        }
        $GLOBALS['log']->fatal('-------businessHours-------'.$businessHours);

        return $businessHours;
    }

    /**
     * @param $hours
     * @param DateTime|null $date
     *
     * @return DateTime
     */
    public function addBusinessHours($hours, DateTime $date = null)
    {
        if ($date == null) {
            $date = new DateTime();
        }
        $sub = $hours < 0;
        $interval = new DateInterval('PT1H');
        if ($sub) {
            $hours = 0 - $hours;
            $interval->invert = 1;
        }
        while ($hours > 0) {
            if ($this->insideAnyBusinessHours($date)) {
                $date->add($interval);
                --$hours;
            } else {
                $date->add($interval);
            }
        }
        //If date has landed outside the business hours fix this.
        while (!$this->insideAnyBusinessHours($date)) {
            $date->add($interval);
        }

        return $date;
    }

    /**
     * @param DateTime $datetime
     *
     * @return bool
     */
    private function insideAnyBusinessHours(DateTime $datetime)
    {
        if (!$this->areBusinessHoursSet()) {
            return true;
        }
        //Get the day of this datetime
        $day = $datetime->format('l');
        //get the business hours for this day
        $bhList = $this->getBusinessHoursForDay($day);
        //Check inside business hours
        foreach ($bhList as $bh) {
            if ($bh->insideThisBusinessHour($datetime)) {
                return true;
            }
        }

        return false;
    }
}
