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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_content
 *
 * @copyright   (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Content\Administrator\Extension;

\defined('JPATH_PLATFORM') or die;

use Joomla\CMS\Application\SiteApplication;
use Joomla\CMS\Association\AssociationServiceInterface;
use Joomla\CMS\Association\AssociationServiceTrait;
use Joomla\CMS\Categories\CategoryServiceInterface;
use Joomla\CMS\Categories\CategoryServiceTrait;
use Joomla\CMS\Component\Router\RouterServiceInterface;
use Joomla\CMS\Component\Router\RouterServiceTrait;
use Joomla\CMS\Extension\BootableExtensionInterface;
use Joomla\CMS\Extension\MVCComponent;
use Joomla\CMS\Factory;
use Joomla\CMS\Fields\FieldsServiceInterface;
use Joomla\CMS\Form\Form;
use Joomla\CMS\Helper\ContentHelper as LibraryContentHelper;
use Joomla\CMS\HTML\HTMLRegistryAwareTrait;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Tag\TagServiceInterface;
use Joomla\CMS\Tag\TagServiceTrait;
use Joomla\CMS\Workflow\WorkflowServiceInterface;
use Joomla\CMS\Workflow\WorkflowServiceTrait;
use Joomla\Component\Content\Administrator\Helper\ContentHelper;
use Joomla\Component\Content\Administrator\Service\HTML\AdministratorService;
use Joomla\Component\Content\Administrator\Service\HTML\Icon;
use Psr\Container\ContainerInterface;

/**
 * Component class for com_content
 *
 * @since  4.0.0
 */
class ContentComponent extends MVCComponent implements
	BootableExtensionInterface, CategoryServiceInterface, FieldsServiceInterface, AssociationServiceInterface,
	WorkflowServiceInterface, RouterServiceInterface, TagServiceInterface
{
	use AssociationServiceTrait;
	use RouterServiceTrait;
	use HTMLRegistryAwareTrait;
	use WorkflowServiceTrait;
	use CategoryServiceTrait, TagServiceTrait {
		CategoryServiceTrait::getTableNameForSection insteadof TagServiceTrait;
		CategoryServiceTrait::getStateColumnForSection insteadof TagServiceTrait;
	}

/** @var array Supported functionality */
	protected $supportedFunctionality = [
		'core.featured' => true,
		'core.state' => true,
	];

/**
	 * The trashed condition
	 *
	 * @since   4.0.0
	 */
	const CONDITION_NAMES = [
		self::CONDITION_PUBLISHED   => 'JPUBLISHED',
		self::CONDITION_UNPUBLISHED => 'JUNPUBLISHED',
		self::CONDITION_ARCHIVED    => 'JARCHIVED',
		self::CONDITION_TRASHED     => 'JTRASHED',
	];

/**
	 * The archived condition
	 *
	 * @since   4.0.0
	 */
	const CONDITION_ARCHIVED = 2;

/**
	 * The published condition
	 *
	 * @since   4.0.0
	 */
	const CONDITION_PUBLISHED = 1;

/**
	 * The unpublished condition
	 *
	 * @since   4.0.0
	 */
	const CONDITION_UNPUBLISHED = 0;

/**
	 * The trashed condition
	 *
	 * @since   4.0.0
	 */
	const CONDITION_TRASHED = -2;

/**
	 * Booting the extension. This is the function to set up the environment of the extension like
	 * registering new class loaders, etc.
	 *
	 * If required, some initial set up can be done from services of the container, eg.
	 * registering HTML services.
	 *
	 * @param   ContainerInterface  $container  The container
	 *
	 * @return  void
	 *
	 * @since   4.0.0
	 */
	public function boot(ContainerInterface $container)
	{
		$this->getRegistry()->register('contentadministrator', new AdministratorService);
		$this->getRegistry()->register('contenticon', new Icon($container->get(SiteApplication::class)));

// The layout joomla.content.icons does need a general icon service
		$this->getRegistry()->register('icon', $this->getRegistry()->getService('contenticon'));
	}

/**
	 * Returns a valid section for the given section. If it is not valid then null
	 * is returned.
	 *
	 * @param   string  $section  The section to get the mapping for
	 * @param   object  $item     The item
	 *
	 * @return  string|null  The new section
	 *
	 * @since   4.0.0
	 */
	public function validateSection($section, $item = null)
	{
		if (Factory::getApplication()->isClient('site'))
		{
			// On the front end we need to map some sections
			switch ($section)
			{
				// Editing an article
				case 'form':

// Category list view
				case 'featured':
				case 'category':
					$section = 'article';
			}
		}

if ($section != 'article')
		{
			// We don't know other sections
			return null;
		}

return $section;
	}

/**
	 * Returns valid contexts
	 *
	 * @return  array
	 *
	 * @since   4.0.0
	 */
	public function getContexts(): array
	{
		Factory::getLanguage()->load('com_content', JPATH_ADMINISTRATOR);

$contexts = array(
			'com_content.article'    => Text::_('COM_CONTENT'),
			'com_content.categories' => Text::_('JCATEGORY')
		);

return $contexts;
	}

/**
	 * Returns valid contexts
	 *
	 * @return  array
	 *
	 * @since   4.0.0
	 */
	public function getWorkflowContexts(): array
	{
		Factory::getLanguage()->load('com_content', JPATH_ADMINISTRATOR);

$contexts = array(
			'com_content.article'    => Text::_('COM_CONTENT')
		);

return $contexts;
	}

/**
	 * Returns the workflow context based on the given category section
	 *
	 * @param   string  $section  The section
	 *
	 * @return  string|null
	 *
	 * @since   4.0.0
	 */
	public function getCategoryWorkflowContext(?string $section = null): string
	{
		$context = $this->getWorkflowContexts();

return array_key_first($context);
	}

/**
	 * Returns the table for the count items functions for the given section.
	 *
	 * @param   string  $section  The section
	 *
	 * @return  string|null
	 *
	 * @since   4.0.0
	 */
	protected function getTableNameForSection(string $section = null)
	{
		return '#__content';
	}

/**
	 * Returns a table name for the state association
	 *
	 * @param   string  $section  An optional section to separate different areas in the component
	 *
	 * @return  string
	 *
	 * @since   4.0.0
	 */
	public function getWorkflowTableBySection(?string $section = null): string
	{
		return '#__content';
	}

/**
	 * Returns the model name, based on the context
	 *
	 * @param   string  $context  The context of the workflow
	 *
	 * @return string
	 */
	public function getModelName($context): string
	{
		$parts = explode('.', $context);

if (count($parts) < 2)
		{
			return '';
		}

array_shift($parts);

$modelname = array_shift($parts);

if ($modelname === 'article' && Factory::getApplication()->isClient('site'))
		{
			return 'Form';
		}
		elseif ($modelname === 'featured' && Factory::getApplication()->isClient('administrator'))
		{
			return 'Article';
		}

return ucfirst($modelname);
	}

/**
	 * Method to filter transitions by given id of state.
	 *
	 * @param   array  $transitions  The Transitions to filter
	 * @param   int    $pk           Id of the state
	 *
	 * @return  array
	 *
	 * @since  4.0.0
	 */
	public function filterTransitions(array $transitions, int $pk): array
	{
		return ContentHelper::filterTransitions($transitions, $pk);
	}

/**
	 * Adds Count Items for Category Manager.
	 *
	 * @param   \stdClass[]  $items    The category objects
	 * @param   string       $section  The section
	 *
	 * @return  void
	 *
	 * @since   4.0.0
	 */
	public function countItems(array $items, string $section)
	{
		$config = (object) array(
			'related_tbl'    => 'content',
			'state_col'      => 'state',
			'group_col'      => 'catid',
			'relation_type'  => 'category_or_group',
			'uses_workflows' => true,
			'workflows_component' => 'com_content'
		);

LibraryContentHelper::countRelations($items, $config);
	}

/**
	 * Adds Count Items for Tag Manager.
	 *
	 * @param   \stdClass[]  $items      The content objects
	 * @param   string       $extension  The name of the active view.
	 *
	 * @return  void
	 *
	 * @since   4.0.0
	 * @throws  \Exception
	 */
	public function countTagItems(array $items, string $extension)
	{
		$parts   = explode('.', $extension);
		$section = count($parts) > 1 ? $parts[1] : null;

$config = (object) array(
			'related_tbl'   => ($section === 'category' ? 'categories' : 'content'),
			'state_col'     => ($section === 'category' ? 'published' : 'state'),
			'group_col'     => 'tag_id',
			'extension'     => $extension,
			'relation_type' => 'tag_assigments',
		);

LibraryContentHelper::countRelations($items, $config);
	}

/**
	 * Prepares the category form
	 *
	 * @param   Form          $form  The form to prepare
	 * @param   array|object  $data  The form data
	 *
	 * @return void
	 */
	public function prepareForm(Form $form, $data)
	{
		ContentHelper::onPrepareForm($form, $data);
	}
}