<?php
/**
 * @package         Regular Labs Library
 * @version         23.12.10783
 * 
 * @author          Peter van Westen <[email protected]>
 * @link            https://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         GNU General Public License version 2 or later
 */

namespace RegularLabs\Library\Form\Field;

defined('_JEXEC') or die;

use Joomla\CMS\Language\Text as JText;
use RegularLabs\Library\Document as RL_Document;
use RegularLabs\Library\Form\FormField as RL_FormField;

class AjaxField extends RL_FormField
{
    protected function getInput()
    {
        $class = $this->get('class', 'btn btn-success');

        if ($this->get('disabled'))
        {
            return $this->getButton($class . ' disabled', 'disabled');
        }

        RL_Document::script('regularlabs.admin-form');
        RL_Document::script('regularlabs.regular');
        RL_Document::script('regularlabs.script');

        $query     = '';
        $url_query = $this->get('url-query');

        if ($url_query)
        {
            $name_prefix = $this->form->getFormControl() . '\\\[' . $this->group . '\\\]';
            $id_prefix   = $this->form->getFormControl() . '_' . $this->group . '_';
            $query_parts = [];
            $url_query   = explode(',', $url_query);

            foreach ($url_query as $url_query_part)
            {
                [$key, $id] = explode(':', $url_query_part);

                $el_name = 'document.querySelector(`input[name=' . $name_prefix . '\\\[' . $id . '\\\]]:checked`)';
                $el_id   = 'document.querySelector(`#' . $id_prefix . $id . '`)';

                $query_parts[] = '`&' . $key . '=`'
                    . ' + encodeURI(' . $el_name . ' ? ' . $el_name . '.value : (' . $el_id . ' ? ' . $el_id . '.value' . ' : ``))';
            }

            $query = '+' . implode('+', $query_parts);
        }

        $url = '`' . addslashes($this->get('url')) . '`' . $query;

        $attributes = 'onclick="RegularLabs.AdminForm.loadAjaxButton(`' . $this->id . '`, ' . $url . ')"';

        return $this->getButton($class, $attributes);
    }

    private function getButton(
        string $class = 'btn btn-success',
        string $attributes_string = ''
    ): string
    {
        $icon              = $this->get('icon', '')
            ? 'icon-' . $this->get('icon', '')
            : '';
        $attributes_string = $attributes_string ? ' ' . $attributes_string : '';

        return
            '<button type="button" id="' . $this->id . '" class="' . $class . '"'
            . ' title="' . JText::_($this->get('description')) . '"'
            . $attributes_string . '>'
            . '<span class="' . $icon . '"></span> '
            . '<span>' . JText::_($this->get('text', $this->get('label'))) . '</span>'
            . '</button>'
            . '<div id="message_' . $this->id . '"></div>';
    }
}