<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_fields
 *
 * @copyright   (C) 2016 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Fields\Administrator\View\Field;

use Joomla\CMS\Factory;
use Joomla\CMS\Filesystem\Path;
use Joomla\CMS\Helper\ContentHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
use Joomla\CMS\Object\CMSObject;
use Joomla\CMS\Toolbar\ToolbarHelper;

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

/**
 * Field View
 *
 * @since  3.7.0
 */
class HtmlView extends BaseHtmlView
{
    /**
     * @var     \Joomla\CMS\Form\Form
     *
     * @since   3.7.0
     */
    protected $form;

    /**
     * @var     CMSObject
     *
     * @since   3.7.0
     */
    protected $item;

    /**
     * @var     CMSObject
     *
     * @since   3.7.0
     */
    protected $state;

    /**
     * Execute and display a template script.
     *
     * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
     *
     * @return  void
     *
     * @see     HtmlView::loadTemplate()
     *
     * @since   3.7.0
     */
    public function display($tpl = null)
    {
        $this->form  = $this->get('Form');
        $this->item  = $this->get('Item');
        $this->state = $this->get('State');

        $this->canDo = ContentHelper::getActions($this->state->get('field.component'), 'field', $this->item->id);

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

        Factory::getApplication()->input->set('hidemainmenu', true);

        $this->addToolbar();

        parent::display($tpl);
    }

    /**
     * Adds the toolbar.
     *
     * @return  void
     *
     * @since   3.7.0
     */
    protected function addToolbar()
    {
        $component = $this->state->get('field.component');
        $section   = $this->state->get('field.section');
        $userId    = $this->getCurrentUser()->get('id');
        $canDo     = $this->canDo;

        $isNew      = ($this->item->id == 0);
        $checkedOut = !(is_null($this->item->checked_out) || $this->item->checked_out == $userId);

        // Avoid nonsense situation.
        if ($component == 'com_fields') {
            return;
        }

        // Load component language file
        $lang = Factory::getLanguage();
        $lang->load($component, JPATH_ADMINISTRATOR)
        || $lang->load($component, Path::clean(JPATH_ADMINISTRATOR . '/components/' . $component));

        $title = Text::sprintf('COM_FIELDS_VIEW_FIELD_' . ($isNew ? 'ADD' : 'EDIT') . '_TITLE', Text::_(strtoupper($component)));

        // Prepare the toolbar.
        ToolbarHelper::title(
            $title,
            'puzzle field-' . ($isNew ? 'add' : 'edit') . ' ' . substr($component, 4) . ($section ? "-$section" : '') . '-field-' .
            ($isNew ? 'add' : 'edit')
        );

        // For new records, check the create permission.
        if ($isNew) {
            ToolbarHelper::apply('field.apply');

            ToolbarHelper::saveGroup(
                [
                    ['save', 'field.save'],
                    ['save2new', 'field.save2new']
                ],
                'btn-success'
            );

            ToolbarHelper::cancel('field.cancel');
        } else {
            // Since it's an existing record, check the edit permission, or fall back to edit own if the owner.
            $itemEditable = $canDo->get('core.edit') || ($canDo->get('core.edit.own') && $this->item->created_by == $userId);

            $toolbarButtons = [];

            // Can't save the record if it's checked out and editable
            if (!$checkedOut && $itemEditable) {
                ToolbarHelper::apply('field.apply');

                $toolbarButtons[] = ['save', 'field.save'];

                // We can save this record, but check the create permission to see if we can return to make a new one.
                if ($canDo->get('core.create')) {
                    $toolbarButtons[] = ['save2new', 'field.save2new'];
                }
            }

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

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

            ToolbarHelper::cancel('field.cancel', 'JTOOLBAR_CLOSE');
        }

        ToolbarHelper::help('Component:_New_or_Edit_Field');
    }
}