<?php

/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2020 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Log\Logger;

use Joomla\CMS\Log\LogEntry;
use Joomla\CMS\Log\Logger;

/**
 * Logger class that keeps all entries in memory
 *
 * @since  4.0.0
 */
class InMemoryLogger extends Logger
{
    /**
     * List of collected log entries, grouped by $group
     *
     * @var array
     * @since  4.0.0
     */
    protected static $logEntries = [];

    /**
     * Group name to store the entries
     *
     * @var    string
     * @since  4.0.0
     */
    protected $group = 'default';

    /**
     * Constructor.
     *
     * @param   array  &$options  Log object options.
     *
     * @since   4.0.0
     */
    public function __construct(array &$options)
    {
        parent::__construct($options);

        if (!empty($this->options['group'])) {
            $this->group = $this->options['group'];
        }
    }

    /**
     * Method to add an entry to the log.
     *
     * @param   LogEntry  $entry  The log entry object to add to the log.
     *
     * @return  void
     *
     * @since   4.0.0
     */
    public function addEntry(LogEntry $entry)
    {
        static::$logEntries[$this->group][] = $entry;
    }

    /**
     * Returns a list of collected entries.
     *
     * @return  array
     *
     * @since   4.0.0
     */
    public function getCollectedEntries()
    {
        if (empty(static::$logEntries[$this->group])) {
            return [];
        }

        return static::$logEntries[$this->group];
    }
}
