<?php declare(strict_types=1);

/*
 * This file is part of the Monolog package.
 *
 * (c) Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Monolog\Handler;

use Monolog\Formatter\FormatterInterface;
use Monolog\Formatter\NormalizerFormatter;
use Monolog\Logger;

/**
 * Handler sending logs to Zend Monitor
 *
 * @author  Christian Bergau <cbergau86@gmail.com>
 */
class ZendMonitorHandler extends AbstractProcessingHandler
{
    /**
     * Monolog level / ZendMonitor Custom Event priority map
     *
     * @var array
     */
    protected $levelMap = [
        Logger::DEBUG     => 1,
        Logger::INFO      => 2,
        Logger::NOTICE    => 3,
        Logger::WARNING   => 4,
        Logger::ERROR     => 5,
        Logger::CRITICAL  => 6,
        Logger::ALERT     => 7,
        Logger::EMERGENCY => 0,
    ];

    /**
     * @param  string|int                $level  The minimum logging level at which this handler will be triggered.
     * @param  bool                      $bubble Whether the messages that are handled can bubble up the stack or not.
     * @throws MissingExtensionException
     */
    public function __construct($level = Logger::DEBUG, bool $bubble = true)
    {
        if (!function_exists('zend_monitor_custom_event')) {
            throw new MissingExtensionException('You must have Zend Server installed in order to use this handler');
        }
        parent::__construct($level, $bubble);
    }

    /**
     * {@inheritdoc}
     */
    protected function write(array $record): void
    {
        $this->writeZendMonitorCustomEvent(
            $this->levelMap[$record['level']],
            $record['message'],
            $record['formatted']
        );
    }

    protected function writeZendMonitorCustomEvent(int $level, string $message, array $formatted): void
    {
        zend_monitor_custom_event($level, $message, $formatted);
    }

    /**
     * {@inheritdoc}
     */
    public function getDefaultFormatter(): FormatterInterface
    {
        return new NormalizerFormatter();
    }

    public function getLevelMap(): array
    {
        return $this->levelMap;
    }
}