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<?php
/**
 * @package     Joomla.Plugin
 * @subpackage  Finder.Contacts
 *
 * @copyright   (C) 2011 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

use Joomla\CMS\Categories\Categories;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Table\Table;
use Joomla\Component\Contact\Site\Helper\RouteHelper;
use Joomla\Component\Finder\Administrator\Indexer\Adapter;
use Joomla\Component\Finder\Administrator\Indexer\Helper;
use Joomla\Component\Finder\Administrator\Indexer\Indexer;
use Joomla\Component\Finder\Administrator\Indexer\Result;
use Joomla\Database\DatabaseQuery;
use Joomla\Registry\Registry;

/**
 * Finder adapter for Joomla Contacts.
 *
 * @since  2.5
 */
class PlgFinderContacts extends Adapter
{
	/**
	 * The plugin identifier.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $context = 'Contacts';

/**
	 * The extension name.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $extension = 'com_contact';

/**
	 * The sublayout to use when rendering the results.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $layout = 'contact';

/**
	 * The type of content that the adapter indexes.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $type_title = 'Contact';

/**
	 * The table name.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $table = '#__contact_details';

/**
	 * The field the published state is stored in.
	 *
	 * @var    string
	 * @since  2.5
	 */
	protected $state_field = 'published';

/**
	 * Load the language file on instantiation.
	 *
	 * @var    boolean
	 * @since  3.1
	 */
	protected $autoloadLanguage = true;

/**
	 * Method to update the item link information when the item category is
	 * changed. This is fired when the item category is published or unpublished
	 * from the list view.
	 *
	 * @param   string   $extension  The extension whose category has been updated.
	 * @param   array    $pks        A list of primary key ids of the content that has changed state.
	 * @param   integer  $value      The value of the state that the content has been changed to.
	 *
	 * @return  void
	 *
	 * @since   2.5
	 */
	public function onFinderCategoryChangeState($extension, $pks, $value)
	{
		// Make sure we're handling com_contact categories
		if ($extension === 'com_contact')
		{
			$this->categoryStateChange($pks, $value);
		}
	}

/**
	 * Method to remove the link information for items that have been deleted.
	 *
	 * This event will fire when contacts are deleted and when an indexed item is deleted.
	 *
	 * @param   string  $context  The context of the action being performed.
	 * @param   Table   $table    A Table object containing the record to be deleted
	 *
	 * @return  void
	 *
	 * @since   2.5
	 * @throws  Exception on database error.
	 */
	public function onFinderAfterDelete($context, $table): void
	{
		if ($context === 'com_contact.contact')
		{
			$id = $table->id;
		}
		elseif ($context === 'com_finder.index')
		{
			$id = $table->link_id;
		}
		else
		{
			return;
		}

// Remove the items.
		$this->remove($id);
	}

/**
	 * Method to determine if the access level of an item changed.
	 *
	 * @param   string   $context  The context of the content passed to the plugin.
	 * @param   Table    $row      A Table object
	 * @param   boolean  $isNew    If the content has just been created
	 *
	 * @return  void
	 *
	 * @since   2.5
	 * @throws  Exception on database error.
	 */
	public function onFinderAfterSave($context, $row, $isNew): void
	{
		// We only want to handle contacts here
		if ($context === 'com_contact.contact')
		{
			// Check if the access levels are different
			if (!$isNew && $this->old_access != $row->access)
			{
				// Process the change.
				$this->itemAccessChange($row);
			}

// Reindex the item
			$this->reindex($row->id);
		}

// Check for access changes in the category
		if ($context === 'com_categories.category')
		{
			// Check if the access levels are different
			if (!$isNew && $this->old_cataccess != $row->access)
			{
				$this->categoryAccessChange($row);
			}
		}
	}

/**
	 * Method to reindex the link information for an item that has been saved.
	 * This event is fired before the data is actually saved so we are going
	 * to queue the item to be indexed later.
	 *
	 * @param   string   $context  The context of the content passed to the plugin.
	 * @param   Table    $row      A Table object
	 * @param   boolean  $isNew    If the content is just about to be created
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   2.5
	 * @throws  Exception on database error.
	 */
	public function onFinderBeforeSave($context, $row, $isNew)
	{
		// We only want to handle contacts here
		if ($context === 'com_contact.contact')
		{
			// Query the database for the old access level if the item isn't new
			if (!$isNew)
			{
				$this->checkItemAccess($row);
			}
		}

// Check for access levels from the category
		if ($context === 'com_categories.category')
		{
			// Query the database for the old access level if the item isn't new
			if (!$isNew)
			{
				$this->checkCategoryAccess($row);
			}
		}

return true;
	}

/**
	 * Method to update the link information for items that have been changed
	 * from outside the edit screen. This is fired when the item is published,
	 * unpublished, archived, or unarchived from the list view.
	 *
	 * @param   string   $context  The context for the content passed to the plugin.
	 * @param   array    $pks      A list of primary key ids of the content that has changed state.
	 * @param   integer  $value    The value of the state that the content has been changed to.
	 *
	 * @return  void
	 *
	 * @since   2.5
	 */
	public function onFinderChangeState($context, $pks, $value)
	{
		// We only want to handle contacts here
		if ($context === 'com_contact.contact')
		{
			$this->itemStateChange($pks, $value);
		}

// Handle when the plugin is disabled
		if ($context === 'com_plugins.plugin' && $value === 0)
		{
			$this->pluginDisable($pks);
		}
	}

/**
	 * Method to index an item. The item must be a Result object.
	 *
	 * @param   Result  $item  The item to index as a Result object.
	 *
	 * @return  void
	 *
	 * @since   2.5
	 * @throws  Exception on database error.
	 */
	protected function index(Result $item)
	{
		// Check if the extension is enabled
		if (ComponentHelper::isEnabled($this->extension) === false)
		{
			return;
		}

$item->setLanguage();

// Initialize the item parameters.
		$item->params = new Registry($item->params);

// Create a URL as identifier to recognise items again.
		$item->url = $this->getUrl($item->id, $this->extension, $this->layout);

// Build the necessary route and path information.
		$item->route = RouteHelper::getContactRoute($item->slug, $item->catslug, $item->language);

// Get the menu title if it exists.
		$title = $this->getItemMenuTitle($item->url);

// Adjust the title if necessary.
		if (!empty($title) && $this->params->get('use_menu_title', true))
		{
			$item->title = $title;
		}

/*
		 * Add the metadata processing instructions based on the contact
		 * configuration parameters.
		 */

// Handle the contact position.
		if ($item->params->get('show_position', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'position');
		}

// Handle the contact street address.
		if ($item->params->get('show_street_address', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'address');
		}

// Handle the contact city.
		if ($item->params->get('show_suburb', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'city');
		}

// Handle the contact region.
		if ($item->params->get('show_state', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'region');
		}

// Handle the contact country.
		if ($item->params->get('show_country', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'country');
		}

// Handle the contact zip code.
		if ($item->params->get('show_postcode', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'zip');
		}

// Handle the contact telephone number.
		if ($item->params->get('show_telephone', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'telephone');
		}

// Handle the contact fax number.
		if ($item->params->get('show_fax', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'fax');
		}

// Handle the contact email address.
		if ($item->params->get('show_email', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'email');
		}

// Handle the contact mobile number.
		if ($item->params->get('show_mobile', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'mobile');
		}

// Handle the contact webpage.
		if ($item->params->get('show_webpage', true))
		{
			$item->addInstruction(Indexer::META_CONTEXT, 'webpage');
		}

// Handle the contact user name.
		$item->addInstruction(Indexer::META_CONTEXT, 'user');

// Add the type taxonomy data.
		$item->addTaxonomy('Type', 'Contact');

// Add the category taxonomy data.
		$categories = Categories::getInstance('com_contact', ['published' => false, 'access' => false]);
		$category = $categories->get($item->catid);
		$item->addNestedTaxonomy('Category', $category, $this->translateState($category->published), $category->access, $category->language);

// Add the language taxonomy data.
		$item->addTaxonomy('Language', $item->language);

// Add the region taxonomy data.
		if (!empty($item->region) && $this->params->get('tax_add_region', true))
		{
			$item->addTaxonomy('Region', $item->region);
		}

// Add the country taxonomy data.
		if (!empty($item->country) && $this->params->get('tax_add_country', true))
		{
			$item->addTaxonomy('Country', $item->country);
		}

// Get content extras.
		Helper::getContentExtras($item);

// Index the item.
		$this->indexer->index($item);
	}

/**
	 * Method to setup the indexer to be run.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   2.5
	 */
	protected function setup()
	{
		return true;
	}

/**
	 * Method to get the SQL query used to retrieve the list of content items.
	 *
	 * @param   mixed  $query  A DatabaseQuery object or null.
	 *
	 * @return  DatabaseQuery  A database object.
	 *
	 * @since   2.5
	 */
	protected function getListQuery($query = null)
	{
		$db = $this->db;

// Check if we can use the supplied SQL query.
		$query = $query instanceof DatabaseQuery ? $query : $db->getQuery(true)
			->select('a.id, a.name AS title, a.alias, a.con_position AS position, a.address, a.created AS start_date')
			->select('a.created_by_alias, a.modified, a.modified_by')
			->select('a.metakey, a.metadesc, a.metadata, a.language')
			->select('a.sortname1, a.sortname2, a.sortname3')
			->select('a.publish_up AS publish_start_date, a.publish_down AS publish_end_date')
			->select('a.suburb AS city, a.state AS region, a.country, a.postcode AS zip')
			->select('a.telephone, a.fax, a.misc AS summary, a.email_to AS email, a.mobile')
			->select('a.webpage, a.access, a.published AS state, a.ordering, a.params, a.catid')
			->select('c.title AS category, c.published AS cat_state, c.access AS cat_access');

// Handle the alias CASE WHEN portion of the query
		$case_when_item_alias = ' CASE WHEN ';
		$case_when_item_alias .= $query->charLength('a.alias', '!=', '0');
		$case_when_item_alias .= ' THEN ';
		$a_id = $query->castAsChar('a.id');
		$case_when_item_alias .= $query->concatenate(array($a_id, 'a.alias'), ':');
		$case_when_item_alias .= ' ELSE ';
		$case_when_item_alias .= $a_id . ' END as slug';
		$query->select($case_when_item_alias);

$case_when_category_alias = ' CASE WHEN ';
		$case_when_category_alias .= $query->charLength('c.alias', '!=', '0');
		$case_when_category_alias .= ' THEN ';
		$c_id = $query->castAsChar('c.id');
		$case_when_category_alias .= $query->concatenate(array($c_id, 'c.alias'), ':');
		$case_when_category_alias .= ' ELSE ';
		$case_when_category_alias .= $c_id . ' END as catslug';
		$query->select($case_when_category_alias)

->select('u.name')
			->from('#__contact_details AS a')
			->join('LEFT', '#__categories AS c ON c.id = a.catid')
			->join('LEFT', '#__users AS u ON u.id = a.user_id');

return $query;
	}
}