<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yii\logging;

use Yii;

/**
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since 2.0
 */
class DebugTarget extends Target
{
	/**
	 * Exports log messages to a specific destination.
	 * Child classes must implement this method.
	 * @param array $messages the messages to be exported. See [[Logger::messages]] for the structure
	 * of each message.
	 */
	public function export($messages)
	{
	}

	/**
	 * Processes the given log messages.
	 * This method will filter the given messages with [[levels]] and [[categories]].
	 * And if requested, it will also export the filtering result to specific medium (e.g. email).
	 * @param array $messages log messages to be processed. See [[Logger::messages]] for the structure
	 * of each message.
	 * @param boolean $final whether this method is called at the end of the current application
	 */
	public function collect($messages, $final)
	{
		$this->messages = array_merge($this->messages, $this->filterMessages($messages));
		$count = count($this->messages);
		if ($count > 0 && ($final || $this->exportInterval > 0 && $count >= $this->exportInterval)) {
			if (($context = $this->getContextMessage()) !== '') {
				$this->messages[] = array($context, Logger::LEVEL_INFO, 'application', YII_BEGIN_TIME);
			}
			$this->export($this->messages);
			$this->messages = array();
		}
	}
}