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<?php
/**
 * @package         Regular Labs Library
 * @version         23.9.3039
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            https://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         GNU General Public License version 2 or later
 */

namespace RegularLabs\Library\Condition;

defined('_JEXEC') or die;

/**
 * Class DateSeason
 *
 * @package RegularLabs\Library\Condition
 */
class DateSeason extends Date
{
    public function pass()
    {
        $season = self::getSeason($this->date, $this->params->hemisphere);

        return $this->passSimple($season);
    }

    private function getSeason(&$d, $hemisphere = 'northern')
    {
        // Set $date to today
        $date = strtotime($d->format('Y-m-d H:i:s', true));

        // Get year of date specified
        $date_year = $d->format('Y', true); // Four digit representation for the year

        // Specify the season names
        $season_names = ['winter', 'spring', 'summer', 'fall'];

        // Declare season date ranges
        switch (strtolower($hemisphere))
        {
            case 'southern':
                if (
                    $date < strtotime($date_year . '-03-21')
                    || $date >= strtotime($date_year . '-12-21')
                )
                {
                    return $season_names[2]; // Must be in Summer
                }

                if ($date >= strtotime($date_year . '-09-23'))
                {
                    return $season_names[1]; // Must be in Spring
                }

                if ($date >= strtotime($date_year . '-06-21'))
                {
                    return $season_names[0]; // Must be in Winter
                }

                if ($date >= strtotime($date_year . '-03-21'))
                {
                    return $season_names[3]; // Must be in Fall
                }
                break;
            case 'australia':
                if (
                    $date < strtotime($date_year . '-03-01')
                    || $date >= strtotime($date_year . '-12-01')
                )
                {
                    return $season_names[2]; // Must be in Summer
                }

                if ($date >= strtotime($date_year . '-09-01'))
                {
                    return $season_names[1]; // Must be in Spring
                }

                if ($date >= strtotime($date_year . '-06-01'))
                {
                    return $season_names[0]; // Must be in Winter
                }

                if ($date >= strtotime($date_year . '-03-01'))
                {
                    return $season_names[3]; // Must be in Fall
                }
                break;
            default: // northern
                if (
                    $date < strtotime($date_year . '-03-21')
                    || $date >= strtotime($date_year . '-12-21')
                )
                {
                    return $season_names[0]; // Must be in Winter
                }

                if ($date >= strtotime($date_year . '-09-23'))
                {
                    return $season_names[3]; // Must be in Fall
                }

                if ($date >= strtotime($date_year . '-06-21'))
                {
                    return $season_names[2]; // Must be in Summer
                }

                if ($date >= strtotime($date_year . '-03-21'))
                {
                    return $season_names[1]; // Must be in Spring
                }
                break;
        }

        return 0;
    }
}