<?php

/**
 * LiteMage
 * @package   LiteSpeed_LiteMage
 * @copyright  Copyright (c) LiteSpeed Technologies, Inc. All rights reserved. (https://www.litespeedtech.com)
 * @license     https://opensource.org/licenses/GPL-3.0
 */

namespace Litespeed\Litemage\Block\Backend\Cache;

class Management extends \Magento\Backend\Block\Template
{

    /**
     * @var \Litespeed\Litemage\Model\Config
     */
    protected $config;

    /**
     * @var \Magento\Framework\HTTP\ClientFactory
     */
    protected $httpClientFactory;

    /**
     * 
     * @param \Magento\Backend\Block\Template\Context $context
     * @param \Litespeed\Litemage\Model\Config $config
     * @param \Magento\Framework\HTTP\ClientFactory $httpClientFactory
     * @param array $data
     */
    public function __construct(
            \Magento\Backend\Block\Template\Context $context,
            \Litespeed\Litemage\Model\Config $config,
            \Magento\Framework\HTTP\ClientFactory $httpClientFactory,
            array $data = [])
    {
        parent::__construct($context, $data);
        $this->config = $config;
        $this->httpClientFactory = $httpClientFactory;
    }

    /**
     * Get clean cache url
     *
     * @return string
     */
    public function getPurgeUrl($type)
    {
        if ($type == 'Refresh') {
            return $this->getUrl('*/*/cache/index');
        } else {
            $types = ['All', 'Tag', 'Url'];

            if (in_array($type, $types)) {
                return $this->getUrl('*/litemageCache/purge' . $type);
            } else {
                return $this->getUrl('*/litemageCache/purgeAll');
            }
        }
    }

    public function getCacheStatistics()
    {
        $statUri = '/__LSCACHE/STATS';
        $base = $this->getUrl();
        if ((stripos($base, 'http') !== false) && ($pos = strpos($base, '://'))) {
            $pos2 = strpos($base, '/', $pos + 4);
            if ($pos2 === false) {
                $statBase = $base;
            } else {
                $statBase = substr($base, 0, $pos2);
                if (substr($base, $pos2 + 1, 1) == '~') {
                    if ($pos3 = strpos($base, '/', $pos2 + 1)) {
                        $statBase = substr($base, 0, $pos3);
                    }
                }
            }
        }
        $statUri = $statBase . $statUri;

        try {
            $client = $this->httpClientFactory->create();
            $client->setOption(CURLOPT_SSL_VERIFYHOST, 0);
            $client->setOption(CURLOPT_SSL_VERIFYPEER, 0);
            $client->setOption(CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1); // need to force http1.1
            $client->get($statUri);
            $data = trim($client->getBody());
            if ($data == '' || substr($data, 0, 1) !== '{') {
                return null;
            }

            $data1 = json_decode($data, true);
            $data2 = array_values($data1);
            if (count($data2)) {
                $stats = $data2[0];
                switch ($stats['LITEMAGE_PLAN']) {
                    case 11: $stats['plan'] = 'LiteMage Standard';
                        $stats['plan_desc'] = 'up to 25000 publicly cached objects';
                        break;
                    case 3: $stats['plan'] = 'LiteMage Unlimited';
                        $stats['plan_desc'] = 'unlimited publicly cached objects';
                        break;
                    case 9:
                    default:
                        $stats['plan'] = 'LiteMage Starter';
                        $stats['plan_desc'] = 'up to 1500 publicly cached objects';
                }
                return $stats;
            }
        } catch (Exception $e) {
            
        }
        return null;
    }

    /**
     * Check if block can be displayed
     *
     * @return bool
     */
    public function canShowButton()
    {
        return $this->config->moduleEnabled();
    }

}