/**
 * Bypass Autolink on TNC FlipBook
 * This snippet allows you to apply autolink to any domains 
 * Copy and paste this code in your active theme's functions.php file
 * Disable Automatic link/iframe in TNC FlipBook > Global Settings to avoid conflicts.
 * 
 * @return void
 */
function tncsupport_pdf_autolink() {
    $get_pvfw_global_settings  = get_option( 'pvfw_csf_options' );
    $tnc_al_get_viewer_page_id = $get_pvfw_global_settings['advanced-pdf-viewer-page'];

    if ( empty( $tnc_al_get_viewer_page_id ) ) {
        $tnc_al_get_viewer_page_id = get_option( 'tnc_pdf_viewer_page_id', false );
    }
    $tnc_pvfw_default_zoom = $get_pvfw_global_settings['toolbar-default-zoom'];
    $tnc_pvfw_default_pagemode = $get_pvfw_global_settings['toolbar-default-page-mode'];
    $viewer_url = get_permalink( $tnc_al_get_viewer_page_id );
    $pdf_al     = wp_parse_url( $viewer_url, PHP_URL_QUERY );
    if ( $pdf_al ) {
        $viewer_url .= '&file=';
    } else {
        $viewer_url .= '?file=';
    }
    ?>
    <script type="text/javascript">
        jQuery(document).ready(function() {		
            var gethost = new RegExp(location.host);
            jQuery("a[href$='.pdf']").each(function() {
                var _href = jQuery(this).attr("href");
                jQuery(this).attr("href", '<?php echo esc_url( $viewer_url ); ?>' + _href + '#zoom=<?php echo esc_html( $tnc_pvfw_default_zoom ); ?>&pagemode=<?php echo esc_html( $tnc_pvfw_default_pagemode ); ?>');
            });
        });
    </script>
    <?php
}

add_action( 'wp_footer', 'tncsupport_pdf_autolink' );