<?php
namespace Joomla\Component\Eventgallery\Site\Library\Connector;

/**
 * @package     Sven.Bluege
 * @subpackage  com_eventgallery
 *
 * @copyright   Copyright (C) 2005 - 2019 Sven Bluege All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;
jimport('joomla.error.log');
require_once JPATH_ROOT.'/components/com_eventgallery/config.php';
require_once JPATH_ROOT.'/components/com_eventgallery/library/common/logger.php';

/**
 * Holds a result including update status.
 *
 * Class WebResult
 */
class WebResult
{
    private $_cachefilename = null;
    private $_isDataUpdated = null;

    public function __construct($isDataUpdated, $cachefilename) {
        $this->_isDataUpdated = $isDataUpdated;
        $this->_cachefilename = $cachefilename;
    }

    public function getCacheFileName() {
        return $this->_cachefilename;
    }

    public function isDataUpdated() {
        return $this->_isDataUpdated;
    }

    /**
     * Read the content of the cache file.
     *
     * @return string
     */
    public function getFileContent() {
        return file_get_contents($this->getCacheFileName());
    }

    /**
     * Tries to convert the content of the result into an object by assuming that it's a JSON string
     *
     * @return mixed
     */
    public function getFileContentAsJson() {
        return json_decode($this->getFileContent(), true);
    }

    /**
     * tries to fetch the content from a given url. It uses CURL to get the content
     * in the first place and falls back to return file_get_contents($url) if CURL is unavailable.
     *
     * @param $url
     * @return null|string the content body provided by the given URL
     */
    public static function url_get_contents ($url) {

        \JLog::addLogger(
            array(
                'text_file' => 'com_eventgallery.log.php',
                'logger' => 'Eventgalleryformattedtext'
            ),
            \JLog::ALL,
            'com_eventgallery'
        );

        if (function_exists('curl_init')) {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_USERAGENT, "{$_SERVER['SERVER_NAME']}");
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
            curl_setopt($ch, CURLOPT_TIMEOUT, 5);
            $output = curl_exec($ch);
            $responseInfo = curl_getinfo($ch);
            $httpCode =  $responseInfo['http_code'];

            if($output === false || $httpCode > 300)
            {
                $errorMessage = curl_error($ch);
                $errorNo = curl_errno($ch);
                \JLog::add('CURL Error for url ' . $url . ': ' . ' http_code=' . $httpCode .'; '. $errorNo . ' - ' . $errorMessage . '; Content: ' . $output, \JLog::INFO, 'com_eventgallery');
                $output = null;
            }

            //\JLog::add('CURL Output for url ' . $url . ': ' .  '; Content: ' . $output, \JLog::INFO, 'com_eventgallery');

            curl_close($ch);

            return $output;
        }

        $output = @file_get_contents($url);

        if($output === false)
        {
            \JLog::add('file_get_contents() Error for url ' . $url, \JLog::INFO, 'com_eventgallery');
            $output = null;
        }

        return $output;
    }

}