<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_languages
 *
 * @copyright   Copyright (C) 2005 - 2017 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

/**
 * Languages Override Controller
 *
 * @since  2.5
 */
class LanguagesControllerOverride extends JControllerForm
{
	/**
	 * Method to edit an existing override.
	 *
	 * @param   string  $key     The name of the primary key of the URL variable (not used here).
	 * @param   string  $urlVar  The name of the URL variable if different from the primary key (not used here).
	 *
	 * @return  void
	 *
	 * @since   2.5
	 */
	public function edit($key = null, $urlVar = null)
	{
		// Do not cache the response to this, its a redirect
		JFactory::getApplication()->allowCache(false);

		$app     = JFactory::getApplication();
		$cid     = $this->input->post->get('cid', array(), 'array');
		$context = "$this->option.edit.$this->context";

		// Get the constant name.
		$recordId = (count($cid) ? $cid[0] : $this->input->get('id'));

		// Access check.
		if (!$this->allowEdit())
		{
			$this->setError(JText::_('JLIB_APPLICATION_ERROR_EDIT_NOT_PERMITTED'));
			$this->setMessage($this->getError(), 'error');
			$this->setRedirect(JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_list . $this->getRedirectToListAppend(), false));

			return;
		}

		$app->setUserState($context . '.data', null);
		$this->setRedirect('index.php?option=' . $this->option . '&view=' . $this->view_item . $this->getRedirectToItemAppend($recordId, 'id'));
	}

	/**
	 * Method to save an override.
	 *
	 * @param   string  $key     The name of the primary key of the URL variable (not used here).
	 * @param   string  $urlVar  The name of the URL variable if different from the primary key (not used here).
	 *
	 * @return  void
	 *
	 * @since   2.5
	 */
	public function save($key = null, $urlVar = null)
	{
		// Check for request forgeries.
		JSession::checkToken() or jexit(JText::_('JINVALID_TOKEN'));

		$app     = JFactory::getApplication();
		$model   = $this->getModel();
		$data    = $this->input->post->get('jform', array(), 'array');
		$context = "$this->option.edit.$this->context";
		$task    = $this->getTask();

		$recordId = $this->input->get('id');
		$data['id'] = $recordId;

		// Access check.
		if (!$this->allowSave($data, 'id'))
		{
			$this->setError(JText::_('JLIB_APPLICATION_ERROR_SAVE_NOT_PERMITTED'));
			$this->setMessage($this->getError(), 'error');
			$this->setRedirect(JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_list . $this->getRedirectToListAppend(), false));

			return;
		}

		// Validate the posted data.
		$form = $model->getForm($data, false);

		if (!$form)
		{
			$app->enqueueMessage($model->getError(), 'error');

			return;
		}

		// Require helper for filter functions called by JForm.
		JLoader::register('LanguagesHelper', JPATH_ADMINISTRATOR . '/components/com_languages/helpers/languages.php');

		// Test whether the data is valid.
		$validData = $model->validate($form, $data);

		// Check for validation errors.
		if ($validData === false)
		{
			// Get the validation messages.
			$errors = $model->getErrors();

			// Push up to three validation messages out to the user.
			for ($i = 0, $n = count($errors); $i < $n && $i < 3; $i++)
			{
				if ($errors[$i] instanceof Exception)
				{
					$app->enqueueMessage($errors[$i]->getMessage(), 'warning');
				}
				else
				{
					$app->enqueueMessage($errors[$i], 'warning');
				}
			}

			// Save the data in the session.
			$app->setUserState($context . '.data', $data);

			// Redirect back to the edit screen.
			$this->setRedirect(
				JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_item . $this->getRedirectToItemAppend($recordId, 'id'), false)
			);

			return;
		}

		// Attempt to save the data.
		if (!$model->save($validData))
		{
			// Save the data in the session.
			$app->setUserState($context . '.data', $validData);

			// Redirect back to the edit screen.
			$this->setError(JText::sprintf('JLIB_APPLICATION_ERROR_SAVE_FAILED', $model->getError()));
			$this->setMessage($this->getError(), 'error');
			$this->setRedirect(
				JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_item . $this->getRedirectToItemAppend($recordId, 'id'), false)
			);

			return;
		}

		// Add message of success.
		$this->setMessage(JText::_('COM_LANGUAGES_VIEW_OVERRIDE_SAVE_SUCCESS'));

		// Redirect the user and adjust session state based on the chosen task.
		switch ($task)
		{
			case 'apply':
				// Set the record data in the session.
				$app->setUserState($context . '.data', null);

				// Redirect back to the edit screen
				$this->setRedirect(
					JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_item . $this->getRedirectToItemAppend($validData['key'], 'id'), false)
				);
				break;

			case 'save2new':
				// Clear the record id and data from the session.
				$app->setUserState($context . '.data', null);

				// Redirect back to the edit screen
				$this->setRedirect(
					JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_item . $this->getRedirectToItemAppend(null, 'id'), false)
				);
				break;

			default:
				// Clear the record id and data from the session.
				$app->setUserState($context . '.data', null);

				// Redirect to the list screen.
				$this->setRedirect(JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_list . $this->getRedirectToListAppend(), false));
				break;
		}
	}

	/**
	 * Method to cancel an edit.
	 *
	 * @param   string  $key  The name of the primary key of the URL variable (not used here).
	 *
	 * @return  void
	 *
	 * @since   2.5
	 */
	public function cancel($key = null)
	{
		JSession::checkToken() or jexit(JText::_('JINVALID_TOKEN'));

		$app     = JFactory::getApplication();
		$context = "$this->option.edit.$this->context";

		$app->setUserState($context . '.data', null);
		$this->setRedirect(JRoute::_('index.php?option=' . $this->option . '&view=' . $this->view_list . $this->getRedirectToListAppend(), false));
	}
}
