<?php

namespace WorkflowBundle\Services;

use OldSound\RabbitMqBundle\RabbitMq\ConsumerInterface;
use PhpAmqpLib\Message\AMQPMessage;
use Symfony\Component\DependencyInjection\ContainerInterface;

class LogConsumer implements ConsumerInterface
{

    /**
     * @var ContainerInterface
     */
    protected $serviceContainer;


    /**
     * @param ContainerInterface $serviceContainer
     */
    public function __construct(ContainerInterface $serviceContainer)
    {
        $this->serviceContainer = $serviceContainer;
    }

    /**
     * $msg will be an instance of `PhpAmqpLib\Message\AMQPMessage` 
     * with the $msg->body being the data sent over RabbitMQ.
     * 
     * @param AMQPMessage $msg
     */
    public function execute(AMQPMessage $msg)
    {
        $fields = [];
        $logClass = 'LogBundle\Entity\Log';
        try {
            $msgBody = json_decode($msg->body, true);
            $json_error = json_last_error();
            if (!$json_error) {
                // se hace un date format previo
                $msgBody['datetime'] = date('Y-m-d H:i:s', strtotime($msgBody['datetime']['date']));
                $fields['message'] = $this->serviceContainer->get('monolog_line_formatter')->format($msgBody);
                if (isset($msgBody['context']['deviceId']) && isset($msgBody['context']['deviceType'])) {
                    $logClass = 'LogBundle\Entity\DeviceLog';
                    $fields['deviceId'] = $msgBody['context']['deviceId'];
                    $fields['deviceType'] = $msgBody['context']['deviceType'];
                }
            } else {
                $fields['message'] = "Error json: {$json_error}";
            }
        } catch (\Exception $ex) {
            $fields['message'] = $ex->getMessage();
        }
        
        $log = $this->createLog($fields, $logClass);
        if (is_null($log)) {
            var_dump('Error: log no creado');
        } else {
            var_dump(sprintf("ID: %s Message: %s", $log->getId(), $log->getMessage()));
        }
                
        return;
    }
    
    /**
     * Crea una entidad Log y la persiste
     * 
     * @param array $fields
     * @param string $logClass
     * 
     * @return \WorkflowBundle\Services\LogBundle\Entity\Log
     */
    private function createLog($fields, $logClass = 'LogBundle\Entity\Log')
    {
        if (class_exists($logClass)) {
            $em = $this->serviceContainer->get('doctrine.orm.entity_manager');
            
            $log = new $logClass();           
            $log->setMessage($fields['message']);
            if (isset($fields['deviceId']) && isset($fields['deviceType'])) {
                $device = $em->getRepository('LicenseBundle:Device')->findOneBy([
                    'deviceId' => $fields['deviceId'],
                    'deviceType' => $fields['deviceType'],
                ]);
                $log->setDevice($device);
            }

            $validator = $this->serviceContainer->get('validator');
            if ($validator->validate($log)->count() == 0) {
                $em->persist($log);
                $em->flush($log);

                return $log;
            }
        }
        
        return null;
    }

}