<?php
/**
* @author Glace Team
* @copyright Copyright (c) 2019 Glace (https://www.glace.com)
* @package Glace_Lib01
*/


namespace Glace\Lib01\Observer;

use Glace\Lib01\Helper\Module;
use Magento\Framework\Event\ObserverInterface;

class GenerateInformationTab implements ObserverInterface
{
const SEO_PARAMS = '?utm_source=extension&utm_medium=backend&utm_campaign=';

const MAGENTO_VERSION = '_m2';

/**
* @var array
*/
private $moduleData = null;

private $block;

/**
* @var Module
*/
private $moduleHelper;

/**
* @var string
*/
private $moduleLink;

/**
* @var string
*/
private $moduleCode;

/**
* @var \Magento\Framework\Module\Manager
*/
private $moduleManager;

/**
* @var \Magento\Framework\View\Asset\Repository
*/
private $assetRepo;

/**
* @var \Magento\Config\Model\Config\Structure
*/
private $configStructure;

public function __construct(
Module $moduleHelper,
\Magento\Framework\Module\Manager $moduleManager,
\Magento\Framework\View\Asset\Repository $assetRepo,
\Magento\Config\Model\Config\Structure $configStructure
) {
$this->moduleHelper = $moduleHelper;
$this->moduleManager = $moduleManager;
$this->assetRepo = $assetRepo;
$this->configStructure = $configStructure;
}

/**
* @param \Magento\Framework\Event\Observer $observer
*/
public function execute(\Magento\Framework\Event\Observer $observer)
{
$block = $observer->getBlock();
if ($block) {
$this->setBlock($block);
$html = $this->generateHtml();
$block->setContent($html);
}
}

/**
* @return string
*/
private function generateHtml()
{
$html = '<div class="glace-info-block">'
. $this->showVersionInfo()
. $this->showUserGuideLink()
. $this->additionalContent()
. $this->showModuleExistingConflicts();
$html .= '</div>';

return $html;
}

/**
* @return string
*/
private function getLogoHtml()
{
/*$src = $this->assetRepo->getUrl("Glace_Lib01::images/glace_logo.svg");
$href = 'https://glace.com' . $this->getSeoparams() . 'glace_logo_' . $this->getModuleCode();
$html = '<a target="_blank" href="' . $href . '"><img class="glace-logo" src="' . $src . '"/></a>';*/
$html='';
return $html;
}

/**
* @return string
*/
private function additionalContent()
{
$html = '';
$content = $this->getBlock()->getAdditionalModuleContent();
if ($content) {
if (!is_array($content)) {
$content = [
[
'type' => 'success',
'text' => $content
]
];
}

foreach ($content as $message) {
if (isset($message['type']) && isset($message['text'])) {
$html .= '<div class="glace-additional-content"><span class="message ' . $message['type'] . '">'
. $message['text']
. '</span></div>';
}
}
}

return $html;
}

/**
* @return string
*/
private function showVersionInfo()
{
$html = '<div class="glace-module-version">';

$currentVer = $this->getCurrentVersion();
if ($currentVer) {
$isVersionLast = $this->isLastVersion($currentVer);
$class = $isVersionLast ? 'last-version' : '';
/*$html .= '<div><span class="version-title">'
. $this->getModuleName() . ' '
. '<span class="module-version ' . $class . '">' . $currentVer . '</span>'
. __(' by ')
. '</span>'
. $this->getLogoHtml()
. '</div>';*/

if (!$isVersionLast) {
$html .=
'<div><span class="upgrade-error message message-warning">'
. __(
'Update is available and recommended. See the '
. '<a target="_blank" href="%1">Change Log</a>',
$this->getChangeLogLink()
)
. '</span></div>';
}
}

$html .= '</div>';

return $html;
}

private function getCurrentVersion()
{
$data = $this->moduleHelper->getModuleInfo($this->getModuleCode());

return isset($data['version']) ? $data['version'] : null;
}

private function getModuleCode()
{
if (!$this->moduleCode) {
$this->moduleCode = '';
$class = get_class($this->getBlock());
if ($class) {
$class = explode('\\', $class);
if (isset($class[0]) && isset($class[1])) {
$this->moduleCode = $class[0] . '_' . $class[1];
}
}
}

return $this->moduleCode;
}

/**
* @return string
*/
private function getChangeLogLink()
{
return $this->getModuleLink()
. $this->getSeoparams() . 'changelog_' . $this->getModuleCode() . '#changelog';
}

/**
* @return string
*/
private function showUserGuideLink()
{
/*$html = '<div class="glace-user-guide"><span class="message success">'
. __(
'Need help with the settings?'
. ' Please consult the <a target="_blank" href="%1">user guide</a>'
. ' to configure the extension properly.',
$this->getUserGuideLink()
)
. '</span></div>';*/
$html = '';
return $html;
}

private function getUserGuideLink()
{
$link = $this->getBlock()->getUserGuide();
if ($link) {
$seoLink = $this->getSeoparams();
if (strpos($link, '?') !== false) {
$seoLink = str_replace('?', '&', $seoLink);
}

$link .= $seoLink . 'userguide_' . $this->getModuleCode();
}

return $link;
}

/**
* @return string
*/
private function getSeoparams()
{
return self::SEO_PARAMS;
}

/**
* @param $currentVer
*
* @return bool
*/
private function isLastVersion($currentVer)
{
$result = true;

$module = $this->getFeedModuleData();
if ($module
&& isset($module['version'])
&& version_compare($module['version'], (string)$currentVer, '>')
) {
$result = false;
}

return $result;
}

/**
* @return string
*/
private function getModuleName()
{
$result = '';

$configTabs = $this->configStructure->getTabs();
if ($name = $this->findResourceName($configTabs)) {
$result = $name;
}

if (!$result) {
$module = $this->getFeedModuleData();

if ($module && isset($module['name'])) {
$result = $module['name'];
$result = str_replace(' for Magento 2', '', $result);
}
}

if (!$result) {
$result = __('Extension');
}

return $result;
}

/**
* @param $config
*
* @return string
*/
private function findResourceName($config)
{
$result = '';
$currentNode = null;
foreach ($config as $key => $node) {
if ($node->getId() == 'glace') {
$currentNode = $node;
break;
}
}

if ($currentNode) {
foreach ($currentNode->getChildren() as $item) {
$data = $item->getData('resource');
if (isset($data['label'])
&& isset($data['resource'])
&& $data['resource']
&& strpos($data['resource'], $this->getModuleCode()) !== false
) {
$result = $data['label'];
break;
}
}
}

return $result;
}

/**
* @return array|null
*/
private function getFeedModuleData()
{
if ($this->moduleData === null) {
$allExtensions = $this->moduleHelper->getAllExtensions();
if ($allExtensions && isset($allExtensions[$this->getModuleCode()])) {
$module = $allExtensions[$this->getModuleCode()];
if ($module && is_array($module)) {
$module = array_shift($module);
}

$this->moduleData = $module;
}
}

return $this->moduleData;
}

/**
* @param $currentVer
*
* @return string
*/
private function getModuleLink()
{
if (!$this->moduleLink) {
$this->moduleLink = '';
$module = $this->getFeedModuleData();
if ($module && isset($module['url'])) {
$this->moduleLink = $module['url'];
}
}

return $this->moduleLink;
}

/**
* @return array
*/
private function getExistingConflicts()
{
$conflicts = [];
$module = $this->getFeedModuleData();
if ($module && isset($module['conflictExtensions'])) {
$conflictsFromSite = $module['conflictExtensions'];
$conflictsFromSite = str_replace(' ', '', $conflictsFromSite);
$conflictsFromSite = explode(',', $conflictsFromSite);
$conflicts = array_merge($conflicts, $conflictsFromSite);
$conflicts = array_unique($conflicts);
}

return $conflicts;
}

/**
* @return string
*/
private function showModuleExistingConflicts()
{
$html = '';
$messages = [];
foreach ($this->getExistingConflicts() as $moduleName) {
if ($this->moduleManager->isEnabled($moduleName)) {
$messages[] = __(
'Incompatibility with the %1. '
. 'To avoid the conflicts we strongly recommend turning off the 3rd party mod via the following command: "%2"',
$moduleName,
'magento module:disable ' . $moduleName
);
}
}

if (count($messages)) {
$html = '<div class="glace-conflicts-title">'
. __('Problems detected:')
. '</div>';

$html .= '<div class="glace-disable-extensions">';
foreach ($messages as $message) {
$html .= '<p class="message message-error">' . $message . '</p>';
}

$html .= '</div>';
}

return $html;
}

/**
* @return mixed
*/
public function getBlock()
{
return $this->block;
}

/**
* @param mixed $block
*/
public function setBlock($block)
{
$this->block = $block;
}
}