<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_newsfeeds
 *
 * @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\Newsfeeds\Administrator\View\Newsfeed;

use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Helper\ContentHelper;
use Joomla\CMS\Language\Associations;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
use Joomla\CMS\Toolbar\ToolbarHelper;

/**
 * View to edit a newsfeed.
 *
 * @since  1.6
 */
class HtmlView extends BaseHtmlView
{
    /**
     * The item object for the newsfeed
     *
     * @var    \Joomla\CMS\Object\CMSObject
     *
     * @since  1.6
     */
    protected $item;

    /**
     * The form object for the newsfeed
     *
     * @var    \Joomla\CMS\Form\Form
     *
     * @since  1.6
     */
    protected $form;

    /**
     * The model state of the newsfeed
     *
     * @var    \Joomla\CMS\Object\CMSObject
     *
     * @since  1.6
     */
    protected $state;

    /**
     * Execute and display a template script.
     *
     * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
     *
     * @return  void
     *
     * @since   1.6
     */
    public function display($tpl = null)
    {
        $this->state = $this->get('State');
        $this->item  = $this->get('Item');
        $this->form  = $this->get('Form');

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

        // If we are forcing a language in modal (used for associations).
        if ($this->getLayout() === 'modal' && $forcedLanguage = Factory::getApplication()->input->get('forcedLanguage', '', 'cmd')) {
            // Set the language field to the forcedLanguage and disable changing it.
            $this->form->setValue('language', null, $forcedLanguage);
            $this->form->setFieldAttribute('language', 'readonly', 'true');

            // Only allow to select categories with All language or with the forced language.
            $this->form->setFieldAttribute('catid', 'language', '*,' . $forcedLanguage);

            // Only allow to select tags with All language or with the forced language.
            $this->form->setFieldAttribute('tags', 'language', '*,' . $forcedLanguage);
        }

        $this->addToolbar();
        parent::display($tpl);
    }

    /**
     * Add the page title and toolbar.
     *
     * @return  void
     *
     * @since   1.6
     */
    protected function addToolbar()
    {
        Factory::getApplication()->input->set('hidemainmenu', true);

        $user       = $this->getCurrentUser();
        $isNew      = ($this->item->id == 0);
        $checkedOut = !(is_null($this->item->checked_out) || $this->item->checked_out == $user->get('id'));

        // Since we don't track these assets at the item level, use the category id.
        $canDo = ContentHelper::getActions('com_newsfeeds', 'category', $this->item->catid);

        $title = $isNew ? Text::_('COM_NEWSFEEDS_MANAGER_NEWSFEED_NEW') : Text::_('COM_NEWSFEEDS_MANAGER_NEWSFEED_EDIT');
        ToolbarHelper::title($title, 'rss newsfeeds');

        $toolbarButtons = [];

        // If not checked out, can save the item.
        if (!$checkedOut && ($canDo->get('core.edit') || count($user->getAuthorisedCategories('com_newsfeeds', 'core.create')) > 0)) {
            ToolbarHelper::apply('newsfeed.apply');

            $toolbarButtons[] = ['save', 'newsfeed.save'];
        }

        if (!$checkedOut && count($user->getAuthorisedCategories('com_newsfeeds', 'core.create')) > 0) {
            $toolbarButtons[] = ['save2new', 'newsfeed.save2new'];
        }

        // If an existing item, can save to a copy.
        if (!$isNew && $canDo->get('core.create')) {
            $toolbarButtons[] = ['save2copy', 'newsfeed.save2copy'];
        }

        ToolbarHelper::saveGroup(
            $toolbarButtons,
            'btn-success'
        );

        if (empty($this->item->id)) {
            ToolbarHelper::cancel('newsfeed.cancel');
        } else {
            ToolbarHelper::cancel('newsfeed.cancel', 'JTOOLBAR_CLOSE');

            if (ComponentHelper::isEnabled('com_contenthistory') && $this->state->params->get('save_history', 0) && $canDo->get('core.edit')) {
                ToolbarHelper::versions('com_newsfeeds.newsfeed', $this->item->id);
            }
        }

        if (!$isNew && Associations::isEnabled() && ComponentHelper::isEnabled('com_associations')) {
            ToolbarHelper::custom('newsfeed.editAssociations', 'contract', '', 'JTOOLBAR_ASSOCIATIONS', false, false);
        }

        ToolbarHelper::divider();
        ToolbarHelper::help('News_Feeds:_New_or_Edit');
    }
}
