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<?php
/**
 * @package   Gantry5
 * @author    RocketTheme http://www.rockettheme.com
 * @copyright Copyright (C) 2007 - 2017 RocketTheme, LLC
 * @license   GNU/GPLv2 and later
 *
 * http://www.gnu.org/licenses/gpl-2.0.html
 */

namespace Gantry\Framework;

use Gantry\Component\Layout\Layout;
use Gantry\Component\Theme\ThemeInstaller as AbstractInstaller;
use Gantry\Joomla\Manifest;
use RocketTheme\Toolbox\File\YamlFile;

class ThemeInstaller extends AbstractInstaller
{
    protected $extension;
    protected $manifest;

    public function __construct($extension = null)
    {
        parent::__construct();

        jimport('joomla.filesystem.folder');

        \JTable::addIncludePath(JPATH_ADMINISTRATOR .
'/components/com_templates/tables');
        if ($extension instanceof \JInstallerAdapterTemplate) {
            $this->setInstaller($extension);
        } elseif ($extension) {
            $this->loadExtension($extension);
        }
    }

    public function setInstaller(\JInstallerAdapterTemplate $install)
    {
        // We need access to a protected variable $install->extension.
        $reflectionClass = new \ReflectionClass($install);
        $property =
$reflectionClass->getProperty('extension');
        $property->setAccessible(true);
        $this->extension = $property->getValue($install);
        $this->name = $this->extension->name;

        $this->manifest = new Manifest($this->extension->name,
$install->getManifest());

        return $this;
    }

    public function loadExtension($id)
    {
        if ((string) intval($id) !== (string) $id) {
            $id = ['type' => 'template',
'element' => (string) $id, 'client_id' => 0];
        }
        $this->extension = \JTable::getInstance('extension');
        $this->extension->load($id);
        $this->name = $this->extension->name;
    }

    public function getPath()
    {
        return JPATH_SITE . '/templates/' .
$this->extension->name;
    }

    public function getStyleName($title)
    {
        return \JText::sprintf($title,
\JText::_($this->extension->name));
    }

    public function getStyle($name = null)
    {
        if (is_numeric($name)) {
            $field = 'id';
        } else {
            $field = 'title';
            $name = $this->getStyleName($name);
        }

        $style = $this->createStyle();
        $style->load([
            'template' => $this->extension->element,
            'client_id' => $this->extension->client_id,
            $field => $name
        ]);

        return $style;
    }

    public function getDefaultStyle()
    {
        $style = \JTable::getInstance('Style',
'TemplatesTable');
        $style->load(['home' => 1, 'client_id'
=> 0]);

        return $style;
    }

    /**
     * @param string $type
     * @return \JTableMenu
     */
    public function getMenu($type)
    {
        /** @var \JTableMenuType $table */
        $table = \JTable::getInstance('MenuType');
        $table->load(['menutype' => $type]);

        return $table;
    }

    public function createSampleData()
    {
        $this->updateStyle('JLIB_INSTALLER_DEFAULT_STYLE', [],
1);
        $this->installMenus();
    }

    public function render($template, $context = [])
    {
        $token = \JSession::getFormToken();
        $manifest = $this->getManifest();
        $context += [
            'description' => $this->translate((string)
$manifest->get('description')),
            'version' => (string)
$manifest->get('version'),
            'date' => (string)
$manifest->get('creationDate'),
            'author' => [
                'name' => (string)
$manifest->get('author'),
                'email' => (string)
$manifest->get('authorEmail'),
                'url' => (string)
$manifest->get('authorUrl')
            ],
            'copyright' => (string)
$manifest->get('copyright'),
            'license' => (string)
$manifest->get('license'),
            'install_url' =>
\JRoute::_("index.php?option=com_gantry5&view=install&theme={$this->name}&{$token}=1",
false),
            'edit_url' =>
\JRoute::_("index.php?option=com_gantry5&view=configurations/default/styles&theme={$this->name}&{$token}=1",
false),
        ];

        return parent::render($template, $context);
    }

    public function createStyle()
    {
        $style = \JTable::getInstance('Style',
'TemplatesTable');
        $style->reset();
        $style->template = $this->extension->element;
        $style->client_id = $this->extension->client_id;

        return $style;
    }

    public function addStyle($title, array $configuration = [], $home = 0)
    {
        // Make sure language debug is turned off.
        $lang = \JFactory::getLanguage();
        $debug = $lang->setDebug(false);

        // Translate title.
        $title = $this->getStyleName($title);

        // Turn language debug back on.
        $lang->setDebug($debug);

        $data = [
            'home' => (int) $home,
            'title' => $title,
            'params' => json_encode($configuration),
        ];

        $style = $this->createStyle();
        $style->save($data);

        if ($home) {
            $this->actions[] = ['action' =>
'default_style_assigned', 'text' =>
\JText::sprintf('GANTRY5_INSTALLER_ACTION_DEFAULT_STYLE_ASSIGNED',
$title)];
        }

        return $style;
    }

    public function updateStyle($name, array $configuration, $home = null)
    {
        $style = $this->getStyle($name);

        if ($style->id) {
            $home = ($home !== null ? $home : $style->home);
            $params = (array) json_decode($style->params, true);

            $data = [
                'params' => json_encode($configuration +
$params),
                'home' => $home
            ];

            if ($home && !$style->home) {
                $this->actions[] = ['action' =>
'default_style_assigned', 'text' =>
\JText::sprintf('GANTRY5_INSTALLER_ACTION_DEFAULT_STYLE_ASSIGNED',
$style->title)];
            }

            $style->save($data);
        }

        return $style;
    }

    public function assignHomeStyle($style)
    {
        // Update the mapping for menu items that this style IS assigned
to.
        $db = \JFactory::getDbo();

        $query = $db->getQuery(true)
            ->update('#__menu')
            ->set('template_style_id=' . (int) $style->id)
            ->where('home=1')
            ->where('client_id=0');
        $db->setQuery($query);
        $db->execute();

        if ($db->getAffectedRows()) {
            $this->actions[] = ['action' =>
'home_style_assigned', 'text' =>
\JText::sprintf('GANTRY5_INSTALLER_ACTION_HOME_STYLE_ASSIGNED',
$style->title)];
        }
    }

    /**
     * @param string $folder
     * @param array $params
     * @return string|bool
     */
    public function createOutline($folder, array $params = [])
    {
        if (!$folder) {
            throw new \RuntimeException('Cannot create outline without
folder name');
        }

        $this->initialize();

        $created = false;

        $params += [
            'preset' => null,
            'title' => null
        ];

        $title = $params['title'] ?: ucwords(trim(strtr($folder,
['_' => ' '])));
        $preset = $params['preset'] ?: 'default';

        if ($folder[0] !== '_') {
            $title = $this->getStyleName($title !== 'Default'
? "%s - {$title}" : 'JLIB_INSTALLER_DEFAULT_STYLE');
            $style = $this->getStyle($title);

            if (!$style->id) {
                // Only add style if it doesn't exist.
                $style = $this->addStyle($title, ['preset'
=> $preset]);
                $created = true;
            }

            $id = $style->id;

        } else {
            $id = $folder;
        }

        $target = $folder !== 'default' ? $id : $folder;

        // Copy configuration for the new layout.
        if (($this->copyCustom($folder, $target) || $created) &&
isset($style)) {
            // Update layout and save it.
            $layout = Layout::load($target, $preset);
            $layout->save()->saveIndex();

            if ($id !== $target) {
                // Default outline: Inherit everything from the base.
                $layout->inheritAll()->name = $id;
                $layout->save()->saveIndex();

                $this->actions[] = ['action' =>
'base_outline_created', 'text' =>
$this->translate('GANTRY5_INSTALLER_ACTION_BASE_OUTLINE_CREATED',
$title)];
            }

            if ($created) {
                $this->actions[] = ['action' =>
'outline_created', 'text' =>
$this->translate('GANTRY5_INSTALLER_ACTION_OUTLINE_CREATED',
$title)];
            } else {
                $this->actions[] = ['action' =>
'outline_updated', 'text' =>
$this->translate('GANTRY5_INSTALLER_ACTION_OUTLINE_UPDATED',
$title)];
            }

            // Update preset in Joomla table.
            $this->updateStyle($title, ['preset' =>
$layout['preset']['name']]);
        }

        return $id;
    }

    /**
     * @param  array $item       [menutype, title, alias, link,
template_style_id, params]
     * @param  int   $parent_id  Parent menu id.
     * @param  bool  $load       True if updating existing items.
     * @return int
     * @throws \Exception
     */
    public function addMenuItem(array $item, $parent_id = 1, $load = false)
    {
        $component_id = $this->getComponent();

        $table = \JTable::getInstance('menu');
        $date = new \JDate();
        $update = false;

        // Defaults for the item.
        $item += [
            'menutype' => 'mainmenu',
            'title' => 'Home',
            'alias' => 'gantry5',
            'note' => '',
            'link' =>
'index.php?option=com_gantry5&view=custom',
            'type' => 'component',
            'published' => 1,
            'parent_id' => $parent_id,
            'component_id' => $component_id,
            'checked_out' => 0,
            'checked_out_time' => $date->toSql(),
            'browserNav' => 0,
            'access' => 1,
            'img' => '',
            'template_style_id' => 0,
            'params' => '{}',
            'home' => 0,
            'language' => '*',
            'client_id' => 0
        ];

        if (in_array($item['type'], ['separator',
'heading'])) {
            $item['link'] = '';
        }

        if ($item['type'] !== 'component') {
            $item['component_id'] = 0;
        }

        if ($load) {
            $update = $table->load([
                'menutype' => $item['menutype'],
                'alias' => $item['alias'],
                'parent_id' => $item['parent_id']
            ]);
        }

        $table->setLocation($parent_id, 'last-child');

        if (!$table->bind($item) || !$table->check() ||
!$table->store()) {
            throw new \Exception($table->getError());
        }

        /** @var \JCache|\JCacheController $cache */
        $cache = \JFactory::getCache();
        $cache->clean('mod_menu');

        $menu = \JTable::getInstance('menuType');
        $menu->load(['menutype' =>
$item['menutype']]);

        if
(!isset($this->actions["menu_{$item['menutype']}_created"]))
{
            $postfix = $item['home'] ? '_HOME' :
'';
            if ($update) {
                $this->actions[] = ['action' =>
'menu_item_updated', 'text' =>
\JText::sprintf('GANTRY5_INSTALLER_ACTION_MENU_ITEM_UPDATED' .
$postfix, $table->title, $table->path, $menu->title)];
            } else {
                $this->actions[] = ['action' =>
'menu_item_created', 'text' =>
\JText::sprintf('GANTRY5_INSTALLER_ACTION_MENU_ITEM_CREATED' .
$postfix, $table->title, $table->path, $menu->title)];
            }
        } elseif ($item['home']) {
            $this->actions[] = ['action' =>
'menu_item_updated', 'text' =>
\JText::sprintf('GANTRY5_INSTALLER_ACTION_MENU_ITEM_HOME',
$table->title, $table->path, $menu->title)];
        }

        return $table->id;
    }

    public function installMenus(array $menus = null, $parent = 1)
    {
        if ($menus === null) {
            $path = $this->getPath();

            $file = YamlFile::instance($path .
'/install/menus.yaml');
            $menus = (array) $file->content();
            $file->free();
        }

        foreach ($menus as $menutype => $menu) {
            $title = !empty($menu['title']) ?
$menu['title'] : ucfirst($menutype);
            $description = !empty($menu['description']) ?
$menu['description'] : '';

            $exists = $this->getMenu($menutype)->id;

            // If $parent = 0, do dry run.
            if ((int) $parent && !$exists) {
                $this->deleteMenu($menutype, true);
                $this->createMenu($menutype, $title, $description);
            }

            if (!empty($menu['items'])) {
                $this->addMenuItems($menutype, $menu['items'],
(int) $parent);
            }
        }
    }

    /**
     * @param string $type
     * @param string $title
     * @param string $description
     * @throws \Exception
     */
    public function createMenu($type, $title, $description)
    {
        /** @var \JTableMenuType $table */
        $table = \JTable::getInstance('MenuType');
        $data  = array(
            'menutype'    => $type,
            'title'       => $title,
            'description' => $description
        );

        if (!$table->bind($data) || !$table->check()) {
            // Menu already exists, do nothing
            return;
        }

        if (!$table->store()) {
            throw new \Exception($table->getError());
        }

        $this->actions["menu_{$type}_created"] =
['action' => 'menu_created', 'text' =>
\JText::sprintf('GANTRY5_INSTALLER_ACTION_MENU_CREATED',
$title)];
    }

    /**
     * @param string $type
     * @param bool $force
     */
    public function deleteMenu($type, $force = false)
    {
        if ($force) {
            $this->unsetHome($type);
        }

        $table = \JTable::getInstance('MenuType');
        $table->load(array('menutype' => $type));

        if ($table->id) {
            $success = $table->delete();

            if (!$success) {
               
\JFactory::getApplication()->enqueueMessage($table->getError(),
'error');
            } else {
                $this->actions["menu_{$type}_deleted"] =
['action' => 'menu_delete', 'text' =>
\JText::_('GANTRY5_INSTALLER_ACTION_MENU_DELETED',
$table->title)];
            }
        }

        /** @var \JCache|\JCacheController $cache */
        $cache = \JFactory::getCache();
        $cache->clean('mod_menu');
    }

    public function unsetHome($type)
    {
        // Update the mapping for menu items that this style IS assigned
to.
        $db = \JFactory::getDbo();

        $query = $db->getQuery(true)
            ->update('#__menu')
            ->set('home=0')
            ->where('menutype=' . $db->quote($type))
            ->where('client_id=0');
        $db->setQuery($query);
        $db->execute();
    }

    /**
     * @deprecated 5.3.2
     */
    public function cleanup()
    {
        $this->initialize();
        $this->finalize();
    }

    public function finalize()
    {
        parent::finalize();

        $gantry = Gantry::instance();

        /** @var Outlines $outlines */
        $outlines = $gantry['outlines'];
        $name = $this->extension->name;

        // Update positions in manifest file.
        $positions = $outlines->positions();

        $manifest = new Manifest($name);
        $manifest->setPositions(array_keys($positions));
        $manifest->save();
    }

    protected function addMenuItems($menutype, array $items, $parent)
    {
        foreach ($items as $alias => $item) {
            $item = (array) $item;
            $item += [
                'menutype' => $menutype,
                'title' => ucfirst($alias),
                'alias' => $alias
            ];

            $outline = isset($item['outline']) ?
$item['outline'] : (isset($item['layout']) ?
$item['layout'] : null);
            $params = $this->getOutline($outline);
            if (!is_array($params)) {
                $params = [
                    'preset' =>
isset($item['preset']) ? $item['preset'] :
(isset($item['layout']) ? $item['layout'] : null),
                    'title' => isset($item['style'])
? $item['style'] : null
                ];
            }

            $id = $outline ? $this->createOutline($outline, $params) :
0;
            $item['template_style_id'] = (string)(int) $id ===
(string) $id ? $id : 0;

            // If $parent = 0, do dry run.
            $itemId = $parent ? $this->addMenuItem($item, $parent, true)
: 0;
            if (!empty($item['items'])) {
                $this->addMenuItems($menutype, $item['items'],
$itemId);
            }
        }
    }

    protected function getInstallerScript()
    {
        if (!$this->script) {
            $className = $this->extension->name .
'InstallerScript';

            if (!class_exists($className)) {
                $manifest = new Manifest($this->extension->name);
                $file = $manifest->getScriptFile();

                $path = "{$this->getPath()}/{$file}";
                if ($file && is_file($path)) {
                    require_once $path;
                }
            }

            if (class_exists($className)) {
                $this->script = new $className;
            }
        }

        return $this->script;
    }

    protected function getManifest()
    {
        if (!$this->manifest) {
            $this->manifest = new
Manifest($this->extension->name);
        }

        return $this->manifest;
    }

    protected function getComponent()
    {
        static $component_id;

        if (!$component_id) {
            // Get Gantry component id.
            $component_id =
\JComponentHelper::getComponent('com_gantry5')->id;
        }

        return $component_id;
    }
}