.-.-.-.-.-

<?php

class com_SmartSlider3InstallerScript {

/**
     * The minimum PHP version required to install this extension
     *
     * @var   string
     */
    protected $minimumPHPVersion = '7.4.0';

/**
     * The minimum Joomla! version required to install this extension
     *
     * @var   string
     */
    protected $minimumJoomlaVersion = '3.9.0';

/**
 * Joomla! pre-flight event. This runs before Joomla! installs or updates the package. This is our last chance to
 * tell Joomla! if it should abort the installation.
 *
 * In here we'll try to install FOF. We have to do that before installing the component since it's using an
 * installation script extending FOF's InstallScript class. We can't use a <file> tag in the manifest to install FOF
 * since the FOF installation is expected to fail if a newer version of FOF is already installed on the site.
 *
 * @param string $type Installation type (install, update, discover_install)
 * @param Joomla\CMS\Installer\Adapter\PackageAdapter $parent Parent object
 *
 * @return boolean True to let the installation proceed, false to halt the installation
 */
 public function preflight($type, $parent) {

// Check the minimum PHP version
 if (!version_compare(PHP_VERSION, $this->minimumPHPVersion, 'ge')) {
 $msg = "You need PHP $this->minimumPHPVersion or later to install this package";
 Joomla\CMS\Log\Log::add($msg, Joomla\CMS\Log\Log::WARNING, 'jerror');

return false;
        }

// Check the minimum Joomla! version
 if (!version_compare(JVERSION, $this->minimumJoomlaVersion, 'ge')) {
 $msg = "You need Joomla! $this->minimumJoomlaVersion or later to install this component";
 Joomla\CMS\Log\Log::add($msg, Joomla\CMS\Log\Log::WARNING, 'jerror');

return false;
        }
    }

/**
     *
     * @param Joomla\CMS\Installer\Adapter\PackageAdapter $parent
     */
    public function install($parent) {

$this->installOrUpdate($parent);

$parent->getParent()
               ->setRedirectURL('index.php?option=com_smartslider3');
    }

/**
     *
     * @param Joomla\CMS\Installer\Adapter\PackageAdapter $parent
     */
    public function uninstall($parent) {

}

/**
     *
     * @param Joomla\CMS\Installer\Adapter\PackageAdapter $parent
     */
    public function update($parent) {

$this->installOrUpdate($parent);

$parent->getParent()
               ->setRedirectURL('index.php?option=com_smartslider3');
    }

/**
     *
     * @param Joomla\CMS\Installer\Adapter\PackageAdapter $parent
     */
    protected function installOrUpdate($parent) {

$sourcePath = $parent->getParent()
                             ->getPath('source');

$this->installFromPath($sourcePath . '/lib_smartslider3');
        $this->installFromPath($sourcePath . '/mod_smartslider3');
        $this->installFromPath($sourcePath . '/plugins/installer/smartslider3');
        $this->installFromPath($sourcePath . '/plugins/system/smartslider3');

if (!file_exists(JPATH_LIBRARIES . '/smartslider3/joomla.php')) {
            $this->deleteFolder(JPATH_LIBRARIES . '/smartslider3/');
        }

$this->cleanup();
    }

/**
     * Cleanup old version
     */
    private function cleanup() {

$db = Joomla\CMS\Factory::getDBO();

$db->setQuery("DELETE FROM #__assets WHERE name LIKE 'com_nextend2'")
           ->execute();
        $db->setQuery("DELETE FROM #__assets WHERE name LIKE 'com_nextend_installer'")
           ->execute();

$db->setQuery("DELETE FROM #__extensions WHERE type='component' AND element LIKE 'com_nextend2'")
           ->execute();
        $db->setQuery("DELETE FROM #__extensions WHERE type='plugin' AND folder LIKE 'system' AND element LIKE 'nextendsmartslider3'")
           ->execute();
        $db->setQuery("DELETE FROM #__extensions WHERE type='plugin' AND folder LIKE 'system' AND element LIKE 'nextend2'")
           ->execute();

$this->deleteFolder(JPATH_SITE . '/libraries/nextend2');
        $this->deleteFolder(JPATH_SITE . '/components/com_nextend2');
        $this->deleteFolder(JPATH_SITE . '/media/n2');
        $this->deleteFolder(JPATH_SITE . '/plugins/system/nextendsmartslider3');
        $this->deleteFolder(JPATH_SITE . '/plugins/system/nextend2');

$this->deleteFolder(JPATH_ADMINISTRATOR . '/components/com_nextend2');
        $this->deleteFolder(JPATH_ADMINISTRATOR . '/components/com_nextend_installer');
        $proInvert = 1;

// We must delete the stucked update sites if upgrade to pro or downgrade to free
        $updateSites = $db->setQuery("SELECT update_site_id FROM #__update_sites WHERE location LIKE '%product=smartslider3%'")
                          ->loadAssocList();

if (!empty($updateSites)) {
            foreach ($updateSites as $updateSite) {
                $db->setQuery("DELETE FROM #__update_sites_extensions WHERE update_site_id = '" . $updateSite['update_site_id'] . "'")
                   ->execute();
                $db->setQuery("DELETE FROM #__update_sites WHERE update_site_id = '" . $updateSite['update_site_id'] . "'")
                   ->execute();
            }
        }

$storageHasSystem = !empty($db->setQuery("SHOW COLUMNS FROM #__nextend2_section_storage LIKE 'system'")
                                      ->loadResult());

if ($storageHasSystem) {
            $db->setQuery("ALTER TABLE `#__nextend2_section_storage` CHANGE  `system`  `isSystem` INT(11) NOT NULL DEFAULT '0'")
               ->execute();
        }
    }

protected function installFromPath($path) {

$installer = new Joomla\CMS\Installer\Installer();
        // Joomla 6+
        if (class_exists('\Joomla\CMS\Version')) {
            $version = new \Joomla\CMS\Version();

if (is_callable([
                    $version,
                    'getShortVersion'
                ]) && version_compare($version->getShortVersion(), '6.0.0', '>=')) {
                $db = \Joomla\CMS\Factory::getContainer()
                                         ->get('DatabaseDriver');
                $installer->setDatabase($db);
            }
        }

$installer->setOverwrite(true);

if ($success = $installer->install($path)) {
            return true;
        }

$error = Joomla\CMS\Language\Text::sprintf('JLIB_INSTALLER_ABORT_PACK_INSTALL_ERROR_EXTENSION', 'Smart Slider 3', $path) . ' Please <a href="https://smartslider3.com/contact-us/support/" target="_blank">contact us</a> with this error!';
 throw new RuntimeException($error);

return false;
    }

/**
     * Runs after install, update or discover_update. In other words, it executes after Joomla! has finished installing
     * or updating your component. This is the last chance you've got to perform any additional installations, clean-up,
     * database updates and similar housekeeping functions.
     *
     * @param string                                      $type   install, update or discover_update
     * @param Joomla\CMS\Installer\Adapter\PackageAdapter $parent Parent object
     */
    public function postflight($type, $parent) {

$db = Joomla\CMS\Factory::getDBO();
        $db->setQuery("UPDATE #__extensions SET enabled=1 WHERE type='plugin' AND folder LIKE 'system' AND element LIKE 'smartslider3'")
           ->execute();
        $db->setQuery("UPDATE #__extensions SET enabled=1 WHERE type='plugin' AND folder LIKE 'installer' AND element LIKE 'smartslider3'")
           ->execute();
        $pro = 0;

if (function_exists('opcache_reset') && is_callable('opcache_reset')) {
            opcache_reset();
        }
    }

private function deleteFolder($path) {

if (@is_dir($path)) {
            if (class_exists('\Joomla\CMS\Filesystem\Folder')) {
                \Joomla\CMS\Filesystem\Folder::delete($path);
            } else {
                \Joomla\Filesystem\Folder::delete($path);
            }
        }
    }
}

/home/locationbo/www/././administrator/components/com_smartslider3/script.smartslider3.php