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<?php
/**
 * @package     FOF
 * @copyright   2010-2017 Nicholas K. Dionysopoulos / Akeeba Ltd
 * @license     GNU GPL version 2 or later
 */

namespace FOF30\Date;

use DateTime;
use JDatabaseDriver;

defined('_JEXEC') or die;

/**
 * This decorator will get any DateTime descendant and turn it into a FOF30\Date\Date compatible class. If the methods
 * specific to Date/JDate are available they will be used. Otherwise a new Date object will be spun from the information
 * in the decorated DateTime object and the results of a call to its method will be returned.
 */
class DateDecorator extends Date
{
	/**
	 * The decorated object
	 *
	 * @var   DateTime
	 */
	protected $decorated = null;

public function __construct($date = 'now', $tz = null)
	{
		if (is_object($date) && ($date instanceof DateTime))
		{
			$this->decorated = $date;
		}
		else
		{
			$this->decorated = new Date($date, $tz);
		}

$timestamp = $this->decorated->toISO8601(true);

parent::__construct($timestamp);

$this->setTimezone($this->decorated->getTimezone());

return;
	}

/**
	 * Magic method to access properties of the date given by class to the format method.
	 *
	 * @param   string  $name  The name of the property.
	 *
	 * @return  mixed   A value if the property name is valid, null otherwise.
	 */
	public function __get($name)
	{
		return $this->decorated->$name;
	}

public function __call($name, $arguments)
	{
		$availableMethods = array('add', 'sub', 'modify');

if (in_array($name, $availableMethods) || method_exists($this->decorated, $name))
		{
			return call_user_func_array(array($this->decorated, $name), $arguments);
		}

throw new \InvalidArgumentException("JDate object does not have a $name method");
	}

public function __toString()
	{
		return (string) $this->decorated;
	}

public static function getInstance($date = 'now', $tz = null)
	{
		$coreObject = new Date($date, $tz);

return new DateDecorator($coreObject);
	}

public function dayToString($day, $abbr = false)
	{
		return $this->decorated->dayToString($day, $abbr);
	}

public function calendar($format, $local = false, $translate = true)
	{
		return $this->decorated->calendar($format, $local, $translate);
	}

public function format($format, $local = false, $translate = true)
	{
		return $this->decorated->format($format, $local, $translate);
	}

public function getOffsetFromGmt($hours = false)
	{
		return $this->decorated->getOffsetFromGMT($hours);
	}

public function monthToString($month, $abbr = false)
	{
		return $this->monthToString($month, $abbr);
	}

public function setTimezone($tz)
	{
		return $this->decorated->setTimezone($tz);
	}

public function toISO8601($local = false)
	{
		return $this->decorated->toISO8601($local);
	}

public function toSql($local = false, JDatabaseDriver $db = null)
	{
		return $this->decorated->toSql($local, $db);
	}

public function toRFC822($local = false)
	{
		return $this->decorated->toRFC822($local);
	}

public function toUnix()
	{
		return $this->decorated->toUnix();
	}
}