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<?php
/**
 * @package     Joomla.API
 * @subpackage  com_languages
 *
 * @copyright   (C) 2019 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Languages\Api\View\Strings;

\defined('_JEXEC') or die;

use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\MVC\View\JsonApiView as BaseApiView;
use Joomla\CMS\Serializer\JoomlaSerializer;
use Tobscure\JsonApi\Collection;

/**
 * The strings view
 *
 * @since  4.0.0
 */
class JsonapiView extends BaseApiView
{
	/**
	 * The fields to render items in the documents
	 *
	 * @var  array
	 * @since  4.0.0
	 */
	protected $fieldsToRenderList = [
		'id',
		'string',
		'file',
	];

	/**
	 * Execute and display a template script.
	 *
	 * @param   array|null  $items  Array of items
	 *
	 * @return  string
	 *
	 * @since   4.0.0
	 */
	public function displayList(array $items = null)
	{
		/** @var \Joomla\Component\Languages\Administrator\Model\StringsModel $model */
		$model  = $this->getModel();
		$result = $model->search();

		if ($result instanceof \Exception)
		{
			throw $result;
		}

		$items = [];

		foreach ($result['results'] as $item)
		{
			$items[] = $this->prepareItem($item);
		}

		// Check for errors.
		if (count($errors = $this->get('Errors')))
		{
			throw new GenericDataException(implode("\n", $errors), 500);
		}

		if ($this->type === null)
		{
			throw new \RuntimeException(Text::_('JLIB_APPLICATION_ERROR_CONTENT_TYPE_MISSING'), 400);
		}

		$collection = (new Collection($items, new JoomlaSerializer($this->type)))
			->fields([$this->type => $this->fieldsToRenderList]);

		// Set the data into the document and render it
		$this->document->setData($collection);

		return $this->document->render();
	}

	/**
	 * Prepare item before render.
	 *
	 * @param   object  $item  The model item
	 *
	 * @return  object
	 *
	 * @since   4.0.0
	 */
	protected function prepareItem($item)
	{
		$item->id = $item->constant;
		unset($item->constant);

		return parent::prepareItem($item);
	}
}