<?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\Controller;

use Joomla\CMS\Form\Form;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\Controller\ApiController;
use Joomla\CMS\MVC\Controller\Exception;
use Joomla\String\Inflector;
use Tobscure\JsonApi\Exception\InvalidParameterException;

// phpcs:disable PSR1.Files.SideEffects
\defined('_JEXEC') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * The overrides controller
 *
 * @since  4.0.0
 */
class OverridesController extends ApiController
{
    /**
     * The content type of the item.
     *
     * @var    string
     * @since  4.0.0
     */
    protected $contentType = 'overrides';

    /**
     * The default view for the display method.
     *
     * @var    string
     * @since  3.0
     */
    protected $default_view = 'overrides';

    /**
     * Basic display of an item view
     *
     * @param   integer  $id  The primary key to display. Leave empty if you want to retrieve data from the request
     *
     * @return  static  A \JControllerLegacy object to support chaining.
     *
     * @since   4.0.0
     */
    public function displayItem($id = null)
    {
        $this->modelState->set('filter.language', $this->getLanguageFromInput());
        $this->modelState->set('filter.client', $this->getClientFromInput());

        return parent::displayItem($id);
    }

    /**
     * Basic display of a list view
     *
     * @return  static  A \JControllerLegacy object to support chaining.
     *
     * @since   4.0.0
     */
    public function displayList()
    {
        $this->modelState->set('filter.language', $this->getLanguageFromInput());
        $this->modelState->set('filter.client', $this->getClientFromInput());

        return parent::displayList();
    }

    /**
     * Method to save a record.
     *
     * @param   integer  $recordKey  The primary key of the item (if exists)
     *
     * @return  integer  The record ID on success, false on failure
     *
     * @since   4.0.0
     */
    protected function save($recordKey = null)
    {
        /** @var \Joomla\CMS\MVC\Model\AdminModel $model */
        $model = $this->getModel(Inflector::singularize($this->contentType));

        if (!$model) {
            throw new \RuntimeException(Text::_('JLIB_APPLICATION_ERROR_MODEL_CREATE'));
        }

        $model->setState('filter.language', $this->input->post->get('lang_code'));
        $model->setState('filter.client', $this->input->post->get('app'));

        $data = $this->input->get('data', json_decode($this->input->json->getRaw(), true), 'array');

        // @todo: Not the cleanest thing ever but it works...
        Form::addFormPath(JPATH_COMPONENT_ADMINISTRATOR . '/forms');

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

        if (!$form) {
            throw new \RuntimeException(Text::_('JLIB_APPLICATION_ERROR_FORM_CREATE'));
        }

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

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

            for ($i = 0, $n = \count($errors); $i < $n && $i < 3; $i++) {
                if ($errors[$i] instanceof \Exception) {
                    $messages[] = "{$errors[$i]->getMessage()}";
                } else {
                    $messages[] = "{$errors[$i]}";
                }
            }

            throw new InvalidParameterException(implode("\n", $messages));
        }

        if (!isset($validData['tags'])) {
            $validData['tags'] = [];
        }

        if (!$model->save($validData)) {
            throw new Exception\Save(Text::sprintf('JLIB_APPLICATION_ERROR_SAVE_FAILED', $model->getError()));
        }

        return $validData['key'];
    }

    /**
     * Removes an item.
     *
     * @param   integer  $id  The primary key to delete item.
     *
     * @return  void
     *
     * @since   4.0.0
     */
    public function delete($id = null)
    {
        $id = $this->input->get('id', '', 'string');

        $this->input->set('model', $this->contentType);

        $this->modelState->set('filter.language', $this->getLanguageFromInput());
        $this->modelState->set('filter.client', $this->getClientFromInput());

        parent::delete($id);
    }

    /**
     * Get client code from input
     *
     * @return string
     *
     * @since 4.0.0
     */
    private function getClientFromInput()
    {
        return $this->input->exists('app') ? $this->input->get('app') : $this->input->post->get('app');
    }

    /**
     * Get language code from input
     *
     * @return string
     *
     * @since 4.0.0
     */
    private function getLanguageFromInput()
    {
        return $this->input->exists('lang_code') ?
            $this->input->get('lang_code') : $this->input->post->get('lang_code');
    }
}