.-.-.-.-.-

<?php
/**
 * @package         ReReplacer
 * @version         14.4.1
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            https://regularlabs.com
 * @copyright       Copyright © 2025 Regular Labs All Rights Reserved
 * @license         GNU General Public License version 2 or later
 */

namespace RegularLabs\Plugin\System\ReReplacer;

defined('_JEXEC') or die;

use RegularLabs\Library\Document as RL_Document;
use RegularLabs\Library\RegEx as RL_RegEx;

class Tag
{
    public static function getAreaByType(&$string, $area_type = '')
    {
        if ( ! $string || ! $area_type)
        {
            return [];
        }

self::tagAreaByType($string, $area_type);

$start = '';
        $end   = '';

$matches = explode($start, $string);
        array_shift($matches);

foreach ($matches as $i => $match)
        {
            $orig = $start . $match;
            $text = $match;

if (str_contains($text, $end))
            {
                $text = substr($text, 0, strrpos($text, $end));
                $orig = $start . $text . $end;
            }

$matches[$i] = [$orig, $text];
        }

return $matches;
    }

public static function tagArea(&$string, $area_type = '')
    {
        if ( ! $string || ! $area_type)
        {
            return false;
        }

$start = '';
        $end   = '';

$string = $start . $string . $end;

if ($area_type == 'article_text')
        {
            $string = RL_RegEx::replace('(<hr class="system-pagebreak".*?>)', $end . '\1' . $start, $string);
        }

return true;
    }

private static function tagAreaByType(&$string, $area_type)
    {
        switch ($area_type)
        {
            case 'component':
                self::tagComponent($string);
                break;

case 'body':
                self::tagBody($string);
                break;

case 'head':
                self::tagHead($string);
                break;

default:
                break;
        }
    }

private static function tagBody(&$string)
    {
        if ( ! $string)
        {
            return;
        }

$start = '';

if (str_contains($string, $start))
        {
            return;
        }

if (str_contains($string, '<body') && str_contains($string, '</body>'))
        {
            self::tagByTagType($string, 'body', 'body');

return;
        }

if (str_contains($string, '<item') && str_contains($string, '</item>'))
        {
            self::tagByTagType($string, 'item', 'body');

return;
        }

self::tagArea($string, 'body');
    }

private static function tagByTagType(&$string, $tag, $area_type)
    {
        if ( ! $string)
        {
            return;
        }

$start = '';
        $end   = '';

$string = RL_RegEx::replace('(<' . $tag . '(\s[^>]*)?>)', '\1' . $start, $string);
        $string = str_replace('</' . $tag . '>', $end . '</' . $tag . '>', $string);
    }

private static function tagComponent(&$string)
    {
        if ( ! $string)
        {
            return;
        }

$start = '';

if (RL_Document::isFeed())
        {
            self::tagByTagType($string, 'item', 'component');
        }

if ( ! str_contains($string, $start))
        {
            self::tagArea($string, 'component');
        }
    }

private static function tagHead(&$string)
    {
        if ( ! $string)
        {
            return;
        }

if ( ! str_contains($string, '</head>'))
        {
            return;
        }

self::tagByTagType($string, 'head', 'head');
    }
}

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