<!-- wp:gallery {"linkTo":"none"} -->
<figure class="wp-block-gallery has-nested-images columns-default is-cropped">
    <!-- wp:image {"id":651,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/bm_bmf_pride_and_joy_066_2015-2.jpg" alt="" class="wp-image-651"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":652,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/bm_bmf_pride_och_joy_066_2015-1.jpg" alt="" class="wp-image-652"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":653,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_1.jpg" alt="" class="wp-image-653"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":654,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_2.jpg" alt="" class="wp-image-654"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":655,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_3.jpg" alt="" class="wp-image-655"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":656,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_4.jpg" alt="" class="wp-image-656"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":657,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_5.jpg" alt="" class="wp-image-657"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":658,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_6.jpg" alt="" class="wp-image-658"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":659,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_7.jpg" alt="" class="wp-image-659"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":660,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_8.jpg" alt="" class="wp-image-660"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":661,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_9.jpg" alt="" class="wp-image-661"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":662,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_10.jpg" alt="" class="wp-image-662"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":663,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_11.jpg" alt="" class="wp-image-663"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":664,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_12.jpg" alt="" class="wp-image-664"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":665,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_13.jpg" alt="" class="wp-image-665"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":666,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_14.jpg" alt="" class="wp-image-666"/>
    </figure>
    <!-- /wp:image -->

    <!-- wp:image {"id":667,"sizeSlug":"large","linkDestination":"none"} -->
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_15.jpg" alt="" class="wp-image-667"/>
    </figure>
    <!-- /wp:image -->
</figure>
<!-- /wp:gallery -->

<!-- wp:gallery {"linkTo":"none"} -->
<figure class="wp-block-gallery has-nested-images columns-default is-cropped">
    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/bm_bmf_pride_and_joy_066_2015-2.jpg" alt="" class="wp-image-651"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/bm_bmf_pride_och_joy_066_2015-1.jpg" alt="" class="wp-image-652"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_1.jpg" alt="" class="wp-image-653"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_2.jpg" alt="" class="wp-image-654"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_3.jpg" alt="" class="wp-image-655"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_4.jpg" alt="" class="wp-image-656"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_5.jpg" alt="" class="wp-image-657"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_6.jpg" alt="" class="wp-image-658"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_7.jpg" alt="" class="wp-image-659"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_8.jpg" alt="" class="wp-image-660"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_10.jpg" alt="" class="wp-image-662"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_11.jpg" alt="" class="wp-image-663"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_12.jpg" alt="" class="wp-image-664"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_13.jpg" alt="" class="wp-image-665"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_14.jpg" alt="" class="wp-image-666"/>
    </figure>

    <figure class="wp-block-image size-large">
        <img src="http://morganhorse.demoklubben.se/wp-content/uploads/2019/03/pepper_15.jpg" alt="" class="wp-image-667"/>
    </figure>
</figure>
<!-- /wp:gallery -->

<?php
/*
Plugin Name: Galleri Omvandlare
Description: Omvandlar Jetpack Tiled Galleries till WordPress Core Galleries.
Version: 1.0
Author: Niclas Evaldsson
*/

// Lägg till admin-meny
add_action('admin_menu', 'gallery_converter_admin_menu');
function gallery_converter_admin_menu() {
    add_menu_page(
        'Galleri Omvandlare',
        'Galleri Omvandlare',
        'manage_options',
        'gallery-converter',
        'gallery_converter_admin_page',
        'dashicons-format-gallery',
        6
    );
}

// Admin-sida
function gallery_converter_admin_page() {
    if (!current_user_can('manage_options')) {
        return;
    }

    // Hantera omvandling
    if (isset($_POST['convert_galleries'])) {
        $batch_size = isset($_POST['batch_size']) ? intval($_POST['batch_size']) : 1;
        $converted_pages = convert_galleries($batch_size);
    }

    // Visa admin-gränssnitt
    ?>
    <div class="wrap">
        <h1>Galleri Omvandlare</h1>
        <form method="post">
            <label for="batch_size">Välj batch-storlek:</label>
            <select name="batch_size" id="batch_size">
                <option value="1">1 sida</option>
                <option value="10">10 sidor</option>
                <option value="all">Alla sidor</option>
            </select>
            <input type="submit" name="convert_galleries" class="button button-primary" value="Omvandla Gallerier">
        </form>

        <?php if (!empty($converted_pages)): ?>
            <h3>Omvandlade sidor:</h3>
            <ul>
                <?php foreach ($converted_pages as $page_id => $page_title): ?>
                    <li>
                        <a href="<?php echo get_permalink($page_id); ?>" target="_blank">
                            <?php echo esc_html($page_title); ?>
                        </a>
                    </li>
                <?php endforeach; ?>
            </ul>
        <?php endif; ?>
    </div>
    <?php
}

// Omvandlingsfunktion
function convert_galleries($batch_size) {
    $args = array(
        'post_type' => 'page',
        'posts_per_page' => -1,
        'post_status' => 'publish',
    );

    if ($batch_size !== 'all') {
        $args['posts_per_page'] = $batch_size;
        if (isset($_POST['offset'])) {
            $args['offset'] = intval($_POST['offset']);
        }
    }

    $pages = get_posts($args);
    $converted_pages = array();

    foreach ($pages as $page) {
        $content = $page->post_content;
        $updated_content = $content;

        // Här är regex för att hitta och ersätta Jetpack Tiled Gallery
        $pattern = '/<!-- wp:jetpack\/tiled-gallery.*?-->/s';
        preg_match_all($pattern, $content, $matches);

        foreach ($matches[0] as $match) {
            // Extrahera bild-ID:n från Jetpack-galleriet
            preg_match_all('/data-id="(\d+)"/', $match, $image_ids);

            if (!empty($image_ids[1])) {
                $gallery_images = array();
                foreach ($image_ids[1] as $image_id) {
                    $gallery_images[] = '<figure class="wp-block-image size-large"><img src="' . wp_get_attachment_url($image_id) . '" alt="" class="wp-image-' . $image_id . '"/></figure>';
                }

                $new_gallery = '<!-- wp:gallery {"linkTo":"none"} -->' .
                               '<figure class="wp-block-gallery has-nested-images columns-default is-cropped">' .
                               implode("\n", $gallery_images) .
                               '</figure>' .
                               '<!-- /wp:gallery -->';

                $updated_content = str_replace($match, $new_gallery, $updated_content);
            }
        }

        if ($updated_content !== $content) {
            wp_update_post(array(
                'ID' => $page->ID,
                'post_content' => $updated_content,
            ));
            $converted_pages[$page->ID] = $page->post_title;
        }
    }

    return $converted_pages;
}
?>