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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_banners
 *
 * @copyright   (C) 2008 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Banners\Administrator\Model;

\defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\Form\Form;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\Model\AdminModel;
use Joomla\CMS\Table\Table;
use Joomla\CMS\Versioning\VersionableModelTrait;
use Joomla\Component\Categories\Administrator\Helper\CategoriesHelper;

/**
 * Banner model.
 *
 * @since  1.6
 */
class BannerModel extends AdminModel
{
	use VersionableModelTrait;

/**
	 * The prefix to use with controller messages.
	 *
	 * @var    string
	 * @since  1.6
	 */
	protected $text_prefix = 'COM_BANNERS_BANNER';

/**
	 * The type alias for this content type.
	 *
	 * @var    string
	 * @since  3.2
	 */
	public $typeAlias = 'com_banners.banner';

/**
	 * Batch copy/move command. If set to false, the batch copy/move command is not supported
	 *
	 * @var  string
	 */
	protected $batch_copymove = 'category_id';

/**
	 * Allowed batch commands
	 *
	 * @var  array
	 */
	protected $batch_commands = array(
		'client_id'   => 'batchClient',
		'language_id' => 'batchLanguage'
	);

/**
	 * Batch client changes for a group of banners.
	 *
	 * @param   string  $value     The new value matching a client.
	 * @param   array   $pks       An array of row IDs.
	 * @param   array   $contexts  An array of item contexts.
	 *
	 * @return  boolean  True if successful, false otherwise and internal error is set.
	 *
	 * @since   2.5
	 */
	protected function batchClient($value, $pks, $contexts)
	{
		// Set the variables
		$user = Factory::getUser();

/** @var \Joomla\Component\Banners\Administrator\Table\BannerTable $table */
		$table = $this->getTable();

foreach ($pks as $pk)
		{
			if (!$user->authorise('core.edit', $contexts[$pk]))
			{
				$this->setError(Text::_('JLIB_APPLICATION_ERROR_BATCH_CANNOT_EDIT'));

return false;
			}

$table->reset();
			$table->load($pk);
			$table->cid = (int) $value;

if (!$table->store())
			{
				$this->setError($table->getError());

return false;
			}
		}

// Clean the cache
		$this->cleanCache();

return true;
	}

/**
	 * Method to test whether a record can be deleted.
	 *
	 * @param   object  $record  A record object.
	 *
	 * @return  boolean  True if allowed to delete the record. Defaults to the permission set in the component.
	 *
	 * @since   1.6
	 */
	protected function canDelete($record)
	{
		if (empty($record->id) || $record->state != -2)
		{
			return false;
		}

if (!empty($record->catid))
		{
			return Factory::getUser()->authorise('core.delete', 'com_banners.category.' . (int) $record->catid);
		}

return parent::canDelete($record);
	}

/**
	 * A method to preprocess generating a new title in order to allow tables with alternative names
	 * for alias and title to use the batch move and copy methods
	 *
	 * @param   integer  $categoryId  The target category id
	 * @param   Table    $table       The JTable within which move or copy is taking place
	 *
	 * @return  void
	 *
	 * @since   3.8.12
	 */
	public function generateTitle($categoryId, $table)
	{
		// Alter the title & alias
		$data = $this->generateNewTitle($categoryId, $table->alias, $table->name);
		$table->name = $data['0'];
		$table->alias = $data['1'];
	}

/**
	 * Method to test whether a record can have its state changed.
	 *
	 * @param   object  $record  A record object.
	 *
	 * @return  boolean  True if allowed to change the state of the record. Defaults to the permission set in the component.
	 *
	 * @since   1.6
	 */
	protected function canEditState($record)
	{
		// Check against the category.
		if (!empty($record->catid))
		{
			return Factory::getUser()->authorise('core.edit.state', 'com_banners.category.' . (int) $record->catid);
		}

// Default to component settings if category not known.
		return parent::canEditState($record);
	}

/**
	 * Method to get the record form.
	 *
	 * @param   array    $data      Data for the form. [optional]
	 * @param   boolean  $loadData  True if the form is to load its own data (default case), false if not. [optional]
	 *
	 * @return  Form|boolean  A Form object on success, false on failure
	 *
	 * @since   1.6
	 */
	public function getForm($data = array(), $loadData = true)
	{
		// Get the form.
		$form = $this->loadForm('com_banners.banner', 'banner', array('control' => 'jform', 'load_data' => $loadData));

if (empty($form))
		{
			return false;
		}

// Modify the form based on access controls.
		if (!$this->canEditState((object) $data))
		{
			// Disable fields for display.
			$form->setFieldAttribute('ordering', 'disabled', 'true');
			$form->setFieldAttribute('publish_up', 'disabled', 'true');
			$form->setFieldAttribute('publish_down', 'disabled', 'true');
			$form->setFieldAttribute('state', 'disabled', 'true');
			$form->setFieldAttribute('sticky', 'disabled', 'true');

// Disable fields while saving.
			// The controller has already verified this is a record you can edit.
			$form->setFieldAttribute('ordering', 'filter', 'unset');
			$form->setFieldAttribute('publish_up', 'filter', 'unset');
			$form->setFieldAttribute('publish_down', 'filter', 'unset');
			$form->setFieldAttribute('state', 'filter', 'unset');
			$form->setFieldAttribute('sticky', 'filter', 'unset');
		}

// Don't allow to change the created_by user if not allowed to access com_users.
		if (!Factory::getUser()->authorise('core.manage', 'com_users'))
		{
			$form->setFieldAttribute('created_by', 'filter', 'unset');
		}

return $form;
	}

/**
	 * Method to get the data that should be injected in the form.
	 *
	 * @return  mixed  The data for the form.
	 *
	 * @since   1.6
	 */
	protected function loadFormData()
	{
		// Check the session for previously entered form data.
		$app  = Factory::getApplication();
		$data = $app->getUserState('com_banners.edit.banner.data', array());

if (empty($data))
		{
			$data = $this->getItem();

// Prime some default values.
			if ($this->getState('banner.id') == 0)
			{
				$filters     = (array) $app->getUserState('com_banners.banners.filter');
				$filterCatId = $filters['category_id'] ?? null;

$data->set('catid', $app->input->getInt('catid', $filterCatId));
			}
		}

$this->preprocessData('com_banners.banner', $data);

return $data;
	}

/**
	 * Method to stick records.
	 *
	 * @param   array    $pks    The ids of the items to publish.
	 * @param   integer  $value  The value of the published state
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   1.6
	 */
	public function stick(&$pks, $value = 1)
	{
		/** @var \Joomla\Component\Banners\Administrator\Table\BannerTable $table */
		$table = $this->getTable();
		$pks   = (array) $pks;

// Access checks.
		foreach ($pks as $i => $pk)
		{
			if ($table->load($pk))
			{
				if (!$this->canEditState($table))
				{
					// Prune items that you can't change.
					unset($pks[$i]);
					Factory::getApplication()->enqueueMessage(Text::_('JLIB_APPLICATION_ERROR_EDITSTATE_NOT_PERMITTED'), 'error');
				}
			}
		}

// Attempt to change the state of the records.
		if (!$table->stick($pks, $value, Factory::getUser()->id))
		{
			$this->setError($table->getError());

return false;
		}

return true;
	}

/**
	 * A protected method to get a set of ordering conditions.
	 *
	 * @param   Table  $table  A record object.
	 *
	 * @return  array  An array of conditions to add to ordering queries.
	 *
	 * @since   1.6
	 */
	protected function getReorderConditions($table)
	{
		return [
			$this->_db->quoteName('catid') . ' = ' . (int) $table->catid,
			$this->_db->quoteName('state') . ' >= 0',
		];
	}

/**
	 * Prepare and sanitise the table prior to saving.
	 *
	 * @param   Table  $table  A Table object.
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function prepareTable($table)
	{
		$date = Factory::getDate();
		$user = Factory::getUser();

if (empty($table->id))
		{
			// Set the values
			$table->created    = $date->toSql();
			$table->created_by = $user->id;

// Set ordering to the last item if not set
			if (empty($table->ordering))
			{
				$db = $this->getDbo();
				$query = $db->getQuery(true)
					->select('MAX(' . $db->quoteName('ordering') . ')')
					->from($db->quoteName('#__banners'));

$db->setQuery($query);
				$max = $db->loadResult();

$table->ordering = $max + 1;
			}
		}
		else
		{
			// Set the values
			$table->modified    = $date->toSql();
			$table->modified_by = $user->id;
		}

// Increment the content version number.
		$table->version++;
	}

/**
	 * Allows preprocessing of the Form object.
	 *
	 * @param   Form    $form   The form object
	 * @param   array   $data   The data to be merged into the form object
	 * @param   string  $group  The plugin group to be executed
	 *
	 * @return  void
	 *
	 * @since    3.6.1
	 */
	protected function preprocessForm(Form $form, $data, $group = 'content')
	{
		if ($this->canCreateCategory())
		{
			$form->setFieldAttribute('catid', 'allowAdd', 'true');

// Add a prefix for categories created on the fly.
			$form->setFieldAttribute('catid', 'customPrefix', '#new#');
		}

parent::preprocessForm($form, $data, $group);
	}

/**
	 * Method to save the form data.
	 *
	 * @param   array  $data  The form data.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   1.6
	 */
	public function save($data)
	{
		$input = Factory::getApplication()->input;

// Create new category, if needed.
		$createCategory = true;

// If category ID is provided, check if it's valid.
		if (is_numeric($data['catid']) && $data['catid'])
		{
			$createCategory = !CategoriesHelper::validateCategoryId($data['catid'], 'com_banners');
		}

// Save New Category
		if ($createCategory && $this->canCreateCategory())
		{
			$category = [
				// Remove #new# prefix, if exists.
				'title'     => strpos($data['catid'], '#new#') === 0 ? substr($data['catid'], 5) : $data['catid'],
				'parent_id' => 1,
				'extension' => 'com_banners',
				'language'  => $data['language'],
				'published' => 1,
			];

/** @var \Joomla\Component\Categories\Administrator\Model\CategoryModel $categoryModel */
			$categoryModel = Factory::getApplication()->bootComponent('com_categories')
				->getMVCFactory()->createModel('Category', 'Administrator', ['ignore_request' => true]);

// Create new category.
			if (!$categoryModel->save($category))
			{
				$this->setError($categoryModel->getError());

return false;
			}

// Get the new category ID.
			$data['catid'] = $categoryModel->getState('category.id');
		}

// Alter the name for save as copy
		if ($input->get('task') == 'save2copy')
		{
			/** @var \Joomla\Component\Banners\Administrator\Table\BannerTable $origTable */
			$origTable = clone $this->getTable();
			$origTable->load($input->getInt('id'));

if ($data['name'] == $origTable->name)
			{
				list($name, $alias) = $this->generateNewTitle($data['catid'], $data['alias'], $data['name']);
				$data['name']       = $name;
				$data['alias']      = $alias;
			}
			else
			{
				if ($data['alias'] == $origTable->alias)
				{
					$data['alias'] = '';
				}
			}

$data['state'] = 0;
		}

return parent::save($data);
	}

/**
	 * Is the user allowed to create an on the fly category?
	 *
	 * @return  boolean
	 *
	 * @since   3.6.1
	 */
	private function canCreateCategory()
	{
		return Factory::getUser()->authorise('core.create', 'com_banners');
	}
}