You might not need that plugin

add_filter( 'use_block_editor_for_post', '__return_false', 10 );
add_filter( 'use_block_editor_for_post_type', '__return_false', 10 );

add_filter( 'post_row_actions',    'snippet_duplicate_post_link', 10, 2 );
add_filter( 'page_row_actions',    'snippet_duplicate_post_link', 10, 2 );
add_action( 'admin_action_duplicate_post_as_draft', 'snippet_duplicate_post_as_draft' );

function snippet_duplicate_post_link( $actions, $post ) {
    if ( current_user_can( 'edit_posts' ) ) {
        $url = wp_nonce_url(
            admin_url( 'admin.php?action=duplicate_post_as_draft&post=' . $post->ID ),
            'duplicate_post_' . $post->ID
        );
        $actions['duplicate'] = '<a href="' . esc_url( $url ) . '">Duplicate</a>';
    }
    return $actions;
}

function snippet_duplicate_post_as_draft() {
    if ( empty( $_GET['post'] ) || ! isset( $_GET['_wpnonce'] ) ) {
        wp_die( 'No post ID supplied.' );
    }
    $post_id = absint( $_GET['post'] );
    check_admin_referer( 'duplicate_post_' . $post_id );

    $post = get_post( $post_id );
    if ( ! $post ) {
        wp_die( 'Post not found.' );
    }

    $new_id = wp_insert_post( [
        'post_title'   => $post->post_title,
        'post_content' => $post->post_content,
        'post_excerpt' => $post->post_excerpt,
        'post_status'  => 'draft',
        'post_type'    => $post->post_type,
        'post_author'  => get_current_user_id(),
        'post_parent'  => $post->post_parent,
        'menu_order'   => $post->menu_order,
    ] );

    // Copy post meta.
    foreach ( get_post_meta( $post_id ) as $key => $values ) {
        foreach ( $values as $value ) {
            add_post_meta( $new_id, $key, maybe_unserialize( $value ) );
        }
    }

    wp_redirect( admin_url( 'edit.php?post_type=' . $post->post_type ) );
    exit;
}

add_filter( 'use_widgets_block_editor', '__return_false' );

// Change this to your desired secret login slug
define( 'CUSTOM_LOGIN_SLUG', 'my-secret-login' );

add_action( 'init', function () {
    $request = parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH );
    $slug     = CUSTOM_LOGIN_SLUG;

    // Block direct access to wp-login.php and wp-admin (for non-logged-in users)
    if ( preg_match( '#/wp-login\.php#', $request ) ) {
        if ( ! isset( $_GET[ $slug ] ) && strpos( $_SERVER['REQUEST_URI'], $slug ) === false ) {
            wp_redirect( home_url( '/' ) );
            exit;
        }
    }
} );

add_filter( 'login_url', function ( $url ) {
    return home_url( CUSTOM_LOGIN_SLUG );
}, 10 );

add_action( 'init', function () {
    $slug    = CUSTOM_LOGIN_SLUG;
    $request = trim( parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH ), '/' );

    if ( $request === $slug ) {
        require_once ABSPATH . 'wp-login.php';
        exit;
    }
} );

// Close comments on all existing posts
add_filter( 'comments_open', '__return_false', 20 );
add_filter( 'pings_open',    '__return_false', 20 );

// Hide existing comments
add_filter( 'comments_array', '__return_empty_array', 20 );

// Remove comments from admin menu and bar
add_action( 'admin_menu', function () {
    remove_menu_page( 'edit-comments.php' );
} );
add_action( 'admin_bar_menu', function ( $bar ) {
    $bar->remove_node( 'comments' );
}, 999 );

// Hide comments dashboard widget
add_action( 'wp_dashboard_setup', function () {
    remove_meta_box( 'dashboard_recent_comments', 'dashboard', 'normal' );
} );

// Disable X-Pingback header
add_filter( 'wp_headers', function ( $headers ) {
    unset( $headers['X-Pingback'] );
    return $headers;
} );

// Redirect comment feeds
add_action( 'template_redirect', function () {
    if ( is_comment_feed() ) {
        wp_redirect( get_option( 'siteurl' ), 301 );
        exit;
    }
} );

add_action( 'admin_notices', function () {
    $lyrics = explode( "\n", "Hello, Dolly\nWell, hello, Dolly\nIt's so nice to have you back where you belong\nYou're lookin' swell, Dolly\nI can tell, Dolly\nYou're still glowin', you're still crowin'\nYou're still goin' strong" );
    $lyric  = $lyrics[ mt_rand( 0, count( $lyrics ) - 1 ) ];
    printf(
        '<p id="dolly" style="float:right;margin:0;padding:10px 20px 0 0;font-style:italic;">%s</p>',
        esc_html( $lyric )
    );
} );

add_filter( 'use_block_editor_for_post', '__return_false', 10 );
add_filter( 'use_widgets_block_editor', '__return_false' );

add_action( 'wp_head', 'my_ga4_tracking_code' );
function my_ga4_tracking_code() {
    $measurement_id = 'G-XXXXXXXXXX'; // Replace with your GA4 Measurement ID
    ?>
    <!-- Google Analytics -->
    <script async src="https://www.googletagmanager.com/gtag/js?id=<?php echo esc_attr( $measurement_id ); ?>"></script>
    <script>
        window.dataLayer = window.dataLayer || [];
        function gtag(){dataLayer.push(arguments);}
        gtag('js', new Date());
        gtag('config', '<?php echo esc_js( $measurement_id ); ?>');
    </script>
    <?php
}

// Add your scripts/code to wp_head (header)
add_action( 'wp_head', function () {
    ?>
    <!-- paste header code here, e.g. Google Analytics -->
    <?php
} );

// Add your scripts/code just after <body> opens
add_action( 'wp_body_open', function () {
    ?>
    <!-- paste body code here, e.g. GTM noscript -->
    <?php
} );

// Add your scripts/code to wp_footer (footer)
add_action( 'wp_footer', function () {
    ?>
    <!-- paste footer code here, e.g. Facebook Pixel -->
    <?php
} );

add_action( 'template_redirect', function () {
    if ( is_404() ) {
        wp_redirect( home_url( '/' ), 301 );
        exit;
    }
} );

add_filter( 'xmlrpc_enabled', '__return_false' );

// Add your global header code (wrap in <script> or <style> tags)
add_action( 'wp_head', function () {
    echo "<!-- your header code here -->\n";
} );

// Add your global footer code
add_action( 'wp_footer', function () {
    echo "<!-- your footer code here -->\n";
} );

add_action( 'wp_head', function () {
    $clarity_id = 'YOUR_CLARITY_PROJECT_ID';
    ?>
    <script type="text/javascript">
        (function(c,l,a,r,i,t,y){
            c[a]=c[a]||function(){(c[a].q=c[a].q||[]).push(arguments)};
            t=l.createElement(r);t.async=1;t.src="https://www.clarity.ms/tag/"+i;
            y=l.getElementsByTagName(r)[0];y.parentNode.insertBefore(t,y);
        })(window, document, "clarity", "script", "<?php echo esc_js( $clarity_id ); ?>");
    </script>
    <?php
} );

add_action( 'template_redirect', function () {
    if ( ! is_404() ) {
        return;
    }

    $custom_page_id = 42; // Replace with your 404 page ID.
    $post = get_post( $custom_page_id );

    if ( ! $post ) {
        return;
    }

    // Keep the 404 status code; do not redirect.
    status_header( 404 );
    nocache_headers();

    // Swap in the custom page and render it.
    global $wp_query;
    $wp_query->posts          = array( $post );
    $wp_query->post           = $post;
    $wp_query->post_count     = 1;
    $wp_query->found_posts    = 1;
    $wp_query->is_404         = false;
    $wp_query->is_page        = true;
    $wp_query->is_singular    = true;

    include get_template_directory() . '/page.php';
    exit;
} );

if ( isset( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https' ) {
    $_SERVER['HTTPS'] = 'on';
}

// Close comments on the front-end
add_filter( 'comments_open', '__return_false', 20 );
add_filter( 'pings_open',    '__return_false', 20 );

// Hide existing comments
add_filter( 'comments_array', '__return_empty_array', 20 );

// Remove comments from admin menu and bar
add_action( 'admin_menu', function () {
    remove_menu_page( 'edit-comments.php' );
} );
add_action( 'admin_bar_menu', function ( $bar ) {
    $bar->remove_node( 'comments' );
}, 999 );

// Remove comments from dashboard
add_action( 'admin_init', function () {
    remove_meta_box( 'dashboard_recent_comments', 'dashboard', 'normal' );

    // Disable support for comments on all post types
    foreach ( get_post_types() as $post_type ) {
        if ( post_type_supports( $post_type, 'comments' ) ) {
            remove_post_type_support( $post_type, 'comments' );
            remove_post_type_support( $post_type, 'trackbacks' );
        }
    }
} );

// Disable comment feeds
add_action( 'do_feed_rss2_comments',  '__return_false', 1 );
add_action( 'do_feed_atom_comments',  '__return_false', 1 );

// Remove X-Pingback header
add_filter( 'wp_headers', function ( $headers ) {
    unset( $headers['X-Pingback'] );
    return $headers;
} );

add_action( 'wp_enqueue_scripts', function () {
    global $wp_styles;
    if ( empty( $wp_styles->queue ) ) {
        return;
    }
    foreach ( $wp_styles->queue as $handle ) {
        $src = $wp_styles->registered[ $handle ]->src ?? '';
        if ( strpos( $src, 'fonts.googleapis.com' ) !== false ) {
            wp_dequeue_style( $handle );
            wp_deregister_style( $handle );
        }
    }
}, 100 );

// Also block Google Fonts added via @import in inline styles or editor blocks
add_filter( 'style_loader_tag', function ( $html, $handle ) {
    if ( strpos( $html, 'fonts.googleapis.com' ) !== false ) {
        return '';
    }
    return $html;
}, 10, 2 );

function encode_email_addresses( $content ) {
    return preg_replace_callback(
        '/[a-zA-Z0-9._%+\-]+@[a-zA-Z0-9.\-]+\.[a-zA-Z]{2,}/',
        function ( $matches ) {
            $encoded = '';
            $chars   = str_split( $matches[0] );
            foreach ( $chars as $i => $char ) {
                $encoded .= ( $i % 2 === 0 )
                    ? '&#' . ord( $char ) . ';'
                    : '&#x' . dechex( ord( $char ) ) . ';';
            }
            return $encoded;
        },
        $content
    );
}

foreach ( [ 'the_content', 'the_excerpt', 'widget_text', 'comment_text' ] as $filter ) {
    add_filter( $filter, 'encode_email_addresses', 20 );
}

// Add code to <head>
add_action( 'wp_head', function () {
    echo '<!-- your head code here -->';
} );

// Add code after <body> opening tag
add_action( 'wp_body_open', function () {
    echo '<!-- your body open code here -->';
} );

// Add code before </body>
add_action( 'wp_footer', function () {
    echo '<!-- your footer code here -->';
} );

document.addEventListener('DOMContentLoaded', function () {
    document.querySelectorAll(
        '.elementor-column[data-click-url], .elementor-section[data-click-url], .e-con[data-click-url]'
    ).forEach(function (el) {
        var url = el.dataset.clickUrl;
        if (!url) return;
        el.style.cursor = 'pointer';
        el.addEventListener('click', function (e) {
            if (e.target.closest('a, button')) return;
            var target = el.dataset.clickTarget || '_self';
            window.open(url, target);
        });
    });
});

// New user notification to admin
add_filter( 'wp_send_new_user_notification_to_admin', '__return_false' );

// New user notification to user
add_filter( 'wp_send_new_user_notification_to_user', '__return_false' );

// Password change notification to user
add_filter( 'send_password_change_email', '__return_false' );

// Password change notification to admin
add_filter( 'wp_password_change_notification_email', '__return_false' );

// Email address change notification to user
add_filter( 'send_email_change_email', '__return_false' );

// Forgotten password email to user/admin
add_filter( 'retrieve_password_notification_email', '__return_false' );

// Auto core update emails (suppress success-only; failures still send)
add_filter( 'auto_core_update_send_email', function( $send, $type ) {
    return ( $type === 'success' ) ? false : $send;
}, 10, 2 );

// Auto plugin update emails
add_filter( 'auto_plugin_update_send_email', '__return_false' );

// Auto theme update emails
add_filter( 'auto_theme_update_send_email', '__return_false' );

// Comment moderation / post author notifications
add_filter( 'notify_post_author', '__return_false' );
add_filter( 'notify_moderator',   '__return_false' );

// Save as smooth-scroll.js and enqueue it, or paste into a JS snippet plugin.
// Uses the native CSS scroll-behavior for a zero-dependency approach.
document.documentElement.style.scrollBehavior = 'smooth';

// Save a custom redirect URL via the post editor (add a meta box or use the CLI).
// This snippet reads the meta and redirects on the front end.

add_action( 'template_redirect', function () {
    if ( ! is_singular() ) {
        return;
    }
    $url = get_post_meta( get_the_ID(), '_page_links_to', true );
    if ( $url ) {
        wp_redirect( esc_url_raw( $url ), 301 );
        exit;
    }
} );

// Rewrite the permalink in nav menus and post loops to point to the custom URL.
add_filter( 'post_link',        'plt_custom_url', 10, 2 );
add_filter( 'page_link',        'plt_custom_url', 10, 2 );
add_filter( 'post_type_link',   'plt_custom_url', 10, 2 );

function plt_custom_url( $url, $post ) {
    $custom = get_post_meta( is_object( $post ) ? $post->ID : $post, '_page_links_to', true );
    return $custom ? esc_url( $custom ) : $url;
}

add_action( 'admin_bar_menu', function( $wp_admin_bar ) {
    if ( ! current_user_can( 'manage_options' ) || is_admin() ) {
        return;
    }

    $template = get_single_template() ?: get_page_template() ?: get_index_template();
    $file     = $template ? basename( $template ) : 'unknown';
    $theme    = wp_get_theme()->get( 'Name' );

    $wp_admin_bar->add_node( [
        'id'    => 'current-template',
        'title' => '📄 ' . esc_html( $theme . ' › ' . $file ),
        'href'  => false,
    ] );

    global $template as $tpl;
    foreach ( get_included_files() as $f ) {
        if ( strpos( $f, get_template_directory() ) === 0 ) {
            $wp_admin_bar->add_node( [
                'parent' => 'current-template',
                'id'     => 'tpl-' . md5( $f ),
                'title'  => esc_html( str_replace( get_template_directory() . '/', '', $f ) ),
            ] );
        }
    }
}, 100 );

document.addEventListener('DOMContentLoaded', function () {
    var selector = '#main-navigation'; // change to your element's selector
    var topOffset  = 0;                // px gap from top of viewport
    var el = document.querySelector(selector);
    if (!el) return;

    var placeholder = document.createElement('div');
    var origTop     = el.getBoundingClientRect().top + window.scrollY;

    function onScroll() {
        if (window.scrollY + topOffset >= origTop) {
            if (!el.classList.contains('is-sticky')) {
                placeholder.style.height = el.offsetHeight + 'px';
                el.before(placeholder);
                el.classList.add('is-sticky');
                el.style.cssText = 'position:fixed;top:' + topOffset + 'px;width:' + el.offsetWidth + 'px;z-index:9999;';
            }
        } else {
            if (el.classList.contains('is-sticky')) {
                el.classList.remove('is-sticky');
                el.style.cssText = '';
                placeholder.remove();
            }
        }
    }

    window.addEventListener('scroll', onScroll, { passive: true });
});

add_action( 'wp_footer', function () {
    $property_id = 'YOUR_PROPERTY_ID'; // e.g. 5b1234abc123456789012345
    $widget_id   = 'YOUR_WIDGET_ID';   // e.g. default
    ?>
    <script type="text/javascript">
    var Tawk_API = Tawk_API || {}, Tawk_LoadStart = new Date();
    (function(){
        var s1 = document.createElement("script"), s0 = document.getElementsByTagName("script")[0];
        s1.async = true;
        s1.src   = 'https://embed.tawk.to/<?php echo esc_js( $property_id ); ?>/<?php echo esc_js( $widget_id ); ?>';
        s1.charset = 'UTF-8';
        s1.setAttribute('crossorigin','*');
        s0.parentNode.insertBefore(s1, s0);
    })();
    </script>
    <?php
} );

add_action( 'wp_head', function () {
    ?>
    <style>
        body { user-select: none; -webkit-user-select: none; }
    </style>
    <script>
        document.addEventListener( 'contextmenu', function(e) { e.preventDefault(); } );
        document.addEventListener( 'copy',        function(e) { e.preventDefault(); } );
        document.addEventListener( 'cut',         function(e) { e.preventDefault(); } );
        document.addEventListener( 'keydown',     function(e) {
            if ( ( e.ctrlKey || e.metaKey ) && [ 'c', 'x', 'u', 's', 'a' ].includes( e.key.toLowerCase() ) ) {
                e.preventDefault();
            }
        } );
    </script>
    <?php
} );

add_shortcode( 'my_php_snippet', function( $atts ) {
    ob_start();
    // Place your PHP code here
    echo 'Hello from your snippet!';
    return ob_get_clean();
} );

// Redirect specific users, roles, or everyone after login.
add_filter( 'login_redirect', function ( $redirect_to, $requested_redirect_to, $user ) {
    if ( is_wp_error( $user ) ) {
        return $redirect_to;
    }

    // Redirect a specific user by username.
    if ( $user->user_login === 'john' ) {
        return home_url( '/dashboard/' );
    }

    // Redirect by role.
    if ( in_array( 'editor', (array) $user->roles, true ) ) {
        return admin_url( 'edit.php' );
    }

    // Blanket rule for everyone else.
    return home_url( '/welcome/' );
}, 10, 3 );

// Optional: redirect after logout.
add_action( 'wp_logout', function () {
    wp_safe_redirect( home_url( '/logged-out/' ) );
    exit;
} );

add_action( 'template_redirect', function () {
	if ( ! is_ssl() ) {
		wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], 301 );
		exit;
	}
} );

// Force SSL for admin and logins.
define( 'FORCE_SSL_ADMIN', true );

.entry-meta,
.post-meta,
.entry-date,
.byline,
.author,
.posted-on {
    display: none !important;
}

add_shortcode( 'INSERT_ELEMENTOR', function( $atts ) {
    $atts = shortcode_atts( [ 'id' => 0 ], $atts );
    $id   = absint( $atts['id'] );

    if ( ! $id || ! class_exists( '\Elementor\Plugin' ) ) {
        return '';
    }

    return \Elementor\Plugin::instance()->frontend->get_builder_content_for_display( $id, true );
} );

$cyr_to_lat = [
    // Russian / Bulgarian
    'а'=>'a','б'=>'b','в'=>'v','г'=>'g','д'=>'d','е'=>'e','ё'=>'yo',
    'ж'=>'zh','з'=>'z','и'=>'i','й'=>'j','к'=>'k','л'=>'l','м'=>'m',
    'н'=>'n','о'=>'o','п'=>'p','р'=>'r','с'=>'s','т'=>'t','у'=>'u',
    'ф'=>'f','х'=>'kh','ц'=>'ts','ч'=>'ch','ш'=>'sh','щ'=>'shch',
    'ъ'=>'','ы'=>'y','ь'=>'','э'=>'e','ю'=>'yu','я'=>'ya',
    'А'=>'A','Б'=>'B','В'=>'V','Г'=>'G','Д'=>'D','Е'=>'E','Ё'=>'Yo',
    'Ж'=>'Zh','З'=>'Z','И'=>'I','Й'=>'J','К'=>'K','Л'=>'L','М'=>'M',
    'Н'=>'N','О'=>'O','П'=>'P','Р'=>'R','С'=>'S','Т'=>'T','У'=>'U',
    'Ф'=>'F','Х'=>'Kh','Ц'=>'Ts','Ч'=>'Ch','Ш'=>'Sh','Щ'=>'Shch',
    'Ъ'=>'','Ы'=>'Y','Ь'=>'','Э'=>'E','Ю'=>'Yu','Я'=>'Ya',
    // Ukrainian extras
    'і'=>'i','ї'=>'yi','є'=>'ye','ґ'=>'g',
    'І'=>'I','Ї'=>'Yi','Є'=>'Ye','Ґ'=>'G',
];

$transliterate = function( $title ) use ( $cyr_to_lat ) {
    return strtr( $title, $cyr_to_lat );
};

add_filter( 'sanitize_title',     $transliterate, 9 );
add_filter( 'sanitize_file_name', $transliterate, 9 );

add_filter( 'wp_handle_upload', function ( $upload ) {
    $max_width  = 1920;
    $max_height = 1080;

    if ( ! isset( $upload['file'] ) || ! preg_match( '/\.(jpe?g|png|gif)$/i', $upload['file'] ) ) {
        return $upload;
    }

    $editor = wp_get_image_editor( $upload['file'] );
    if ( is_wp_error( $editor ) ) {
        return $upload;
    }

    $size = $editor->get_size();
    if ( $size['width'] > $max_width || $size['height'] > $max_height ) {
        $editor->resize( $max_width, $max_height, false );
        $editor->save( $upload['file'] );
    }

    return $upload;
} );

add_action( 'template_redirect', function () {
    if ( is_404() ) {
        wp_redirect( home_url( '/' ), 301 );
        exit;
    }
} );

add_shortcode( 'iframe', function( $atts ) {
    $atts = shortcode_atts( [
        'src'         => 'https://www.youtube.com/embed/7_nAZQt9qu0',
        'width'       => '100%',
        'height'      => '500',
        'scrolling'   => 'yes',
        'frameborder' => '0',
        'class'       => 'iframe-class',
    ], $atts, 'iframe' );

    $known = [ 'src', 'width', 'height', 'scrolling', 'frameborder',
               'marginheight', 'marginwidth', 'allowtransparency',
               'id', 'class', 'style' ];

    $html = '<iframe';
    foreach ( $atts as $key => $value ) {
        if ( $value === '' ) {
            $html .= ' ' . esc_attr( $key );          // empty / boolean attribute
        } else {
            $html .= ' ' . esc_attr( $key ) . '="' . esc_attr( $value ) . '"';
        }
    }
    $html .= '></iframe>';

    return $html;
} );

add_filter( 'wp_nav_menu_objects', function( $items ) {
    foreach ( $items as $key => $item ) {
        $visibility = get_post_meta( $item->ID, '_nav_menu_role', true );

        if ( 'logged_in' === $visibility && ! is_user_logged_in() ) {
            unset( $items[ $key ] );
        } elseif ( 'logged_out' === $visibility && is_user_logged_in() ) {
            unset( $items[ $key ] );
        } elseif ( ! empty( $visibility ) && is_array( $visibility ) ) {
            // Role-specific: check if current user has any of the required roles.
            $user = wp_get_current_user();
            $allowed = array_intersect( $visibility, (array) $user->roles );
            if ( empty( $allowed ) ) {
                unset( $items[ $key ] );
            }
        }
    }
    return $items;
} );

add_action( 'template_redirect', function () {
    ob_start( function ( $buffer ) {
        $replacements = [
            'Find this text'    => 'Replace with this',
            'Another old string' => 'Another new string',
        ];
        return str_replace(
            array_keys( $replacements ),
            array_values( $replacements ),
            $buffer
        );
    } );
} );

add_action( 'get_footer', function () {
    ob_start( function ( $buffer ) {
        return str_replace(
            'Proudly powered by WordPress',  // text/HTML to find
            '',                              // replacement (empty = remove)
            $buffer
        );
    } );
} );

add_action( 'init', function () {
    $missed = get_posts( [
        'post_status'    => 'future',
        'date_query'     => [ [ 'column' => 'post_date', 'before' => 'now' ] ],
        'posts_per_page' => -1,
        'fields'         => 'ids',
    ] );

    foreach ( $missed as $post_id ) {
        wp_publish_post( $post_id );
    }
} );

add_action( 'phpmailer_init', function ( PHPMailer\PHPMailer\PHPMailer $phpmailer ) {
	$phpmailer->isSMTP();
	$phpmailer->Host       = 'smtp.gmail.com';
	$phpmailer->SMTPAuth   = true;
	$phpmailer->Username   = '[email protected]';
	$phpmailer->Password   = 'your-password';
	$phpmailer->SMTPSecure = 'tls';
	$phpmailer->Port       = 587;
	$phpmailer->From       = '[email protected]';
	$phpmailer->FromName   = 'Your Name';
} );

add_action( 'wp_footer', function () {
    if ( is_admin() || ( is_user_logged_in() && ! current_user_can( 'administrator' ) ) ) {
        return;
    }
    $rules = [
        'prerender' => [
            [
                'source'    => 'document',
                'where'     => [ 'href_matches' => '/*' ],
                'eagerness' => 'moderate',
            ],
        ],
    ];
    printf(
        '<script type="speculationrules">%s</script>',
        wp_json_encode( $rules )
    );
} );

// Increase upload size, memory, and execution time limits.
@ini_set( 'upload_max_filesize', '256M' );
@ini_set( 'post_max_size',       '256M' );
@ini_set( 'memory_limit',        '256M' );
@ini_set( 'max_execution_time',  '300'  );

add_filter( 'upload_size_limit', function() {
    return 256 * 1024 * 1024; // 256 MB in bytes
} );

// Define the default featured image attachment ID.
define( 'DEFAULT_FEATURED_IMAGE_ID', 42 ); // Replace with your attachment ID.

add_filter( 'post_thumbnail_id', function( $thumbnail_id, $post ) {
    if ( empty( $thumbnail_id ) ) {
        return DEFAULT_FEATURED_IMAGE_ID;
    }
    return $thumbnail_id;
}, 10, 2 );

add_action( 'init', function () {
    remove_action( 'wp_head',             'print_emoji_detection_script', 7 );
    remove_action( 'admin_print_scripts', 'print_emoji_detection_script'    );
    remove_action( 'wp_print_styles',     'print_emoji_styles'               );
    remove_action( 'admin_print_styles',  'print_emoji_styles'               );
    remove_filter( 'the_content_feed',    'wp_staticize_emoji'               );
    remove_filter( 'comment_text_rss',    'wp_staticize_emoji'               );
    remove_filter( 'wp_mail',             'wp_staticize_emoji_for_email'     );

    add_filter( 'tiny_mce_plugins', function ( $plugins ) {
        return array_diff( (array) $plugins, [ 'wpemoji' ] );
    } );

    add_filter( 'wp_resource_hints', function ( $urls, $relation_type ) {
        if ( 'dns-prefetch' === $relation_type ) {
            $urls = array_diff( $urls, [ apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2/svg/' ) ] );
        }
        return $urls;
    }, 10, 2 );
} );

// Remove pingback methods from XML-RPC
add_filter( 'xmlrpc_methods', function( $methods ) {
    unset( $methods['pingback.ping'] );
    unset( $methods['pingback.extensions.getPingbacks'] );
    return $methods;
} );

// Remove X-Pingback HTTP header
add_filter( 'wp_headers', function( $headers ) {
    unset( $headers['X-Pingback'] );
    return $headers;
} );

// Add "Clone" row action to posts and pages
add_filter( 'post_row_actions', 'fpd_duplicate_row_action', 10, 2 );
add_filter( 'page_row_actions', 'fpd_duplicate_row_action', 10, 2 );
function fpd_duplicate_row_action( $actions, $post ) {
    if ( ! current_user_can( 'edit_posts' ) ) {
        return $actions;
    }
    $url = wp_nonce_url(
        add_query_arg(
            [ 'action' => 'fpd_duplicate_post', 'post' => $post->ID ],
            admin_url( 'admin.php' )
        ),
        'fpd_duplicate_' . $post->ID
    );
    $actions['clone'] = '<a href="' . esc_url( $url ) . '">' . __( 'Clone' ) . '</a>';
    return $actions;
}

// Handle the duplication
add_action( 'admin_action_fpd_duplicate_post', 'fpd_duplicate_post_handler' );
function fpd_duplicate_post_handler() {
    $post_id = isset( $_GET['post'] ) ? absint( $_GET['post'] ) : 0;
    if ( ! $post_id || ! check_admin_referer( 'fpd_duplicate_' . $post_id ) ) {
        wp_die( 'Invalid request.' );
    }
    $post = get_post( $post_id );
    if ( ! $post || ! current_user_can( 'edit_post', $post_id ) ) {
        wp_die( 'Permission denied.' );
    }
    $new_id = wp_insert_post( [
        'post_title'   => $post->post_title . ' (Copy)',
        'post_content' => $post->post_content,
        'post_excerpt' => $post->post_excerpt,
        'post_type'    => $post->post_type,
        'post_status'  => 'draft',
        'post_author'  => get_current_user_id(),
    ] );
    $redirect = ( $post->post_type === 'page' ) ? 'edit.php?post_type=page' : 'edit.php';
    wp_redirect( admin_url( $redirect ) );
    exit;
}

add_action( 'init', function () {
    register_taxonomy_for_object_type( 'category', 'page' );
    register_taxonomy_for_object_type( 'post_tag', 'page' );
} );

// Add a scroll-to-top button via CSS + JS (enqueue from functions.php if preferred)
add_action( 'wp_footer', function () { ?>
<style>
#to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: #333;
  color: #fff;
  font-size: 1.25rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0.8;
}
#to-top:hover { opacity: 1; }
</style>
<button id="to-top" aria-label="Back to top">&#8679;</button>
<script>
(function () {
  var btn = document.getElementById('to-top');
  window.addEventListener('scroll', function () {
    btn.style.display = window.scrollY > 300 ? 'flex' : 'none';
  });
  btn.addEventListener('click', function () {
    window.scrollTo({ top: 0, behavior: 'smooth' });
  });
}());
</script>
<?php } );

// --- Global custom CSS ---
add_action( 'wp_head', function () {
    $css = get_option( 'my_global_custom_css', '' );
    if ( $css ) {
        echo '<style id="my-global-custom-css">' . wp_strip_all_tags( $css ) . '</style>';
    }
} );

// --- Per-post/page custom CSS meta box ---
add_action( 'add_meta_boxes', function () {
    add_meta_box( 'my_custom_css', 'Custom CSS', function ( $post ) {
        $css = get_post_meta( $post->ID, '_custom_css', true );
        wp_nonce_field( 'my_custom_css_nonce', 'my_custom_css_nonce' );
        echo '<textarea name="my_custom_css" rows="8" style="width:100%;">' . esc_textarea( $css ) . '</textarea>';
    }, get_post_types( [ 'public' => true ] ), 'normal' );
} );

add_action( 'save_post', function ( $post_id ) {
    if (
        ! isset( $_POST['my_custom_css_nonce'] ) ||
        ! wp_verify_nonce( $_POST['my_custom_css_nonce'], 'my_custom_css_nonce' ) ||
        defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE
    ) return;
    update_post_meta( $post_id, '_custom_css', wp_strip_all_tags( $_POST['my_custom_css'] ?? '' ) );
} );

add_action( 'wp_head', function () {
    if ( ! is_singular() ) return;
    $css = get_post_meta( get_the_ID(), '_custom_css', true );
    if ( $css ) {
        echo '<style id="my-post-custom-css">' . wp_strip_all_tags( $css ) . '</style>';
    }
} );

// Add "Duplicate" row action to posts and pages
add_filter( 'post_row_actions', 'snippet_duplicate_post_link', 10, 2 );
add_filter( 'page_row_actions', 'snippet_duplicate_post_link', 10, 2 );
function snippet_duplicate_post_link( $actions, $post ) {
    if ( ! current_user_can( 'edit_posts' ) ) {
        return $actions;
    }
    $url = wp_nonce_url(
        add_query_arg(
            [ 'action' => 'snippet_duplicate_post', 'post' => $post->ID ],
            admin_url( 'admin.php' )
        ),
        'snippet_duplicate_post_' . $post->ID
    );
    $actions['duplicate'] = '<a href="' . esc_url( $url ) . '">Duplicate</a>';
    return $actions;
}

// Handle the duplication
add_action( 'admin_action_snippet_duplicate_post', 'snippet_duplicate_post_handler' );
function snippet_duplicate_post_handler() {
    if ( empty( $_GET['post'] ) ) {
        wp_die( 'No post specified.' );
    }
    $post_id = absint( $_GET['post'] );
    check_admin_referer( 'snippet_duplicate_post_' . $post_id );

    $post = get_post( $post_id );
    if ( ! $post ) {
        wp_die( 'Post not found.' );
    }

    $new_id = wp_insert_post( [
        'post_title'   => $post->post_title . ' (Copy)',
        'post_content' => $post->post_content,
        'post_excerpt' => $post->post_excerpt,
        'post_status'  => 'draft',
        'post_type'    => $post->post_type,
        'post_author'  => get_current_user_id(),
    ] );

    // Copy post meta
    foreach ( get_post_meta( $post_id ) as $key => $values ) {
        foreach ( $values as $value ) {
            add_post_meta( $new_id, $key, maybe_unserialize( $value ) );
        }
    }

    wp_redirect( admin_url( 'edit.php?post_type=' . $post->post_type ) );
    exit;
}

// Hide Add to Cart buttons
add_filter( 'woocommerce_is_purchasable', '__return_false' );

// Remove Add to Cart button on single product pages
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );

// Remove Add to Cart button on loop/archive pages
remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart', 10 );

// Redirect cart and checkout pages to shop
add_action( 'template_redirect', function () {
    if ( is_cart() || is_checkout() ) {
        wp_safe_redirect( wc_get_page_permalink( 'shop' ) );
        exit;
    }
} );

add_filter( 'pre_update_option_new_admin_email', fn( $value ) => $value );
add_filter( 'pre_update_option_admin_email', fn( $value ) => $value );

// Bypass the pending email confirmation flow introduced in WP 4.9.
add_filter( 'pre_option_new_admin_email', '__return_false' );

add_filter( 'mce_buttons', function( $buttons ) {
    // Add underline and justify buttons to the first TinyMCE toolbar row
    $buttons[] = 'underline';
    $buttons[] = 'justifyfull';
    return $buttons;
} );

// Remove the /category/ base from category URLs.
add_filter( 'category_rewrite_rules', function ( $rules ) {
    $new_rules = array();
    foreach ( $rules as $pattern => $rewrite ) {
        $new_rules[ str_replace( 'category/', '', $pattern ) ] = $rewrite;
    }
    return $new_rules;
} );

add_filter( 'category_link', function ( $link ) {
    return str_replace( '/category/', '/', $link );
} );

// Flush rewrite rules once on activation.
register_activation_hook( __FILE__, function () {
    flush_rewrite_rules();
} );

// Save the "exclude from search" checkbox on the post edit screen
add_action( 'post_submitbox_misc_actions', function () {
    global $post;
    $excluded = get_post_meta( $post->ID, '_search_exclude', true );
    wp_nonce_field( 'search_exclude_nonce', 'search_exclude_nonce' );
    echo '<div class="misc-pub-section">';
    echo '<label><input type="checkbox" name="search_exclude" value="1"' . checked( $excluded, '1', false ) . '> Exclude from search results</label>';
    echo '</div>';
} );

add_action( 'save_post', function ( $post_id ) {
    if ( ! isset( $_POST['search_exclude_nonce'] ) || ! wp_verify_nonce( $_POST['search_exclude_nonce'], 'search_exclude_nonce' ) ) return;
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
    if ( ! current_user_can( 'edit_post', $post_id ) ) return;
    if ( ! empty( $_POST['search_exclude'] ) ) {
        update_post_meta( $post_id, '_search_exclude', '1' );
    } else {
        delete_post_meta( $post_id, '_search_exclude' );
    }
} );

// Filter excluded posts out of search queries
add_action( 'pre_get_posts', function ( $query ) {
    if ( ! $query->is_search() || is_admin() ) return;
    $excluded = get_posts( [
        'post_type'  => 'any',
        'meta_key'   => '_search_exclude',
        'meta_value' => '1',
        'fields'     => 'ids',
        'numberposts' => -1,
    ] );
    if ( ! empty( $excluded ) ) {
        $query->set( 'post__not_in', array_merge( (array) $query->get( 'post__not_in' ), $excluded ) );
    }
} );

add_filter( 'walker_nav_menu_start_el', function( $item_output, $item, $depth, $args ) {
    if ( strpos( $item->title, '[' ) !== false ) {
        $item_output = str_replace(
            $item->title,
            do_shortcode( $item->title ),
            $item_output
        );
    }
    return $item_output;
}, 10, 4 );

add_filter( 'the_content', 'fix_typographic_orphans' );
add_filter( 'the_excerpt', 'fix_typographic_orphans' );

function fix_typographic_orphans( string $content ): string {
    // Words treated as orphans (single letters common in Polish/Czech plus short conjunctions).
    $orphans = apply_filters( 'orphans_list', array( 'a', 'i', 'o', 'u', 'w', 'z', 'że', 'by', 'do', 'na', 'od', 'po', 'we', 'ze' ) );

    foreach ( $orphans as $word ) {
        $pattern     = '/(\s)(' . preg_quote( $word, '/' ) . ')(\s)/iu';
        $replacement = '$1$2 ';
        $content     = preg_replace( $pattern, $replacement, $content );
    }

    return $content;
}

add_action( 'wp_body_open', 'simple_banner_output' );
function simple_banner_output() {
    $message    = 'Your announcement text here.';
    $bg_color   = '#f5a623';
    $text_color = '#ffffff';
    echo '<div style="width:100%;background-color:' . esc_attr( $bg_color ) . ';color:' . esc_attr( $text_color ) . ';text-align:center;padding:10px;z-index:9999;">'
        . wp_kses_post( $message )
        . '</div>';
}

add_action( 'pre_get_posts', function ( WP_Query $query ) {
    if ( is_admin() ) {
        return;
    }

    // IDs of categories to exclude.
    $excluded = array( 5, 12, 34 );

    if (
        $query->is_main_query() &&
        ( $query->is_home() || $query->is_archive() || $query->is_search() || $query->is_feed() )
    ) {
        $query->set( 'category__not_in', $excluded );
    }
} );

add_filter( 'upload_mimes', function( $mimes ) {
    $mimes['svg']  = 'image/svg+xml';
    $mimes['webp'] = 'image/webp';
    $mimes['avif'] = 'image/avif';
    $mimes['woff']  = 'font/woff';
    $mimes['woff2'] = 'font/woff2';
    return $mimes;
} );

add_filter( 'robots_txt', function( $output, $public ) {
    return "User-agent: *\nDisallow: /wp-admin/\nAllow: /wp-admin/admin-ajax.php\n";
}, 10, 2 );

add_filter( 'script_loader_src', function( $src ) {
    if ( strpos( $src, 'maps.googleapis.com/maps/api/js' ) === false ) {
        return $src;
    }

    $api_key = 'YOUR_GOOGLE_MAPS_API_KEY';

    if ( strpos( $src, 'key=' ) === false ) {
        $src = add_query_arg( 'key', $api_key, $src );
    }

    if ( strpos( $src, 'callback=' ) === false ) {
        $src = add_query_arg( 'callback', 'Function.prototype', $src );
    }

    return $src;
}, 20 );

// Disable the block editor
add_filter( 'use_block_editor_for_post', '__return_false' );
add_filter( 'use_widgets_block_editor', '__return_false' );

// Remove block styles from the frontend
add_action( 'wp_enqueue_scripts', function () {
    wp_dequeue_style( 'wp-block-library' );
    wp_dequeue_style( 'wp-block-library-theme' );
    wp_dequeue_style( 'global-styles' );
    wp_dequeue_style( 'classic-theme-styles' );
}, 20 );

// Remove block styles from the backend
add_action( 'enqueue_block_editor_assets', function () {
    wp_dequeue_style( 'wp-edit-blocks' );
}, 20 );

// Remove WP patterns
add_action( 'init', function () {
    remove_theme_support( 'core-block-patterns' );
} );

add_filter( 'robots_txt', function( $output, $public ) {
    $output  = "User-agent: *\n";
    $output .= "Disallow: /wp-admin/\n";
    $output .= "Allow: /wp-admin/admin-ajax.php\n";
    $output .= "Disallow: /wp-includes/\n";

    $sitemap = home_url( '/sitemap.xml' );
    if ( file_exists( ABSPATH . 'sitemap.xml' ) ) {
        $output .= "Sitemap: $sitemap\n";
    }

    return $output;
}, 10, 2 );

// Add an ID column to posts, pages, and other post-type list tables
add_filter( 'manage_posts_columns', 'reveal_ids_add_column' );
add_filter( 'manage_pages_columns', 'reveal_ids_add_column' );
function reveal_ids_add_column( $columns ) {
    $columns['reveal_id'] = 'ID';
    return $columns;
}

add_action( 'manage_posts_custom_column', 'reveal_ids_render_column', 10, 2 );
add_action( 'manage_pages_custom_column', 'reveal_ids_render_column', 10, 2 );
function reveal_ids_render_column( $column, $post_id ) {
    if ( 'reveal_id' === $column ) {
        echo esc_html( $post_id );
    }
}

// Add ID column to the Media library list view
add_filter( 'manage_media_columns', 'reveal_ids_add_column' );
add_action( 'manage_media_custom_column', 'reveal_ids_render_column', 10, 2 );

add_filter( 'gettext', 'my_custom_string_replacements', 20, 3 );
add_filter( 'gettext_with_context', 'my_custom_string_replacements', 20, 3 );

function my_custom_string_replacements( $translated, $original, $domain ) {
    $replacements = [
        // 'text-domain' => [ 'Original string' => 'Replacement string' ],
        'woocommerce' => [
            'Add to cart' => 'Buy now',
        ],
        'default' => [
            'Howdy, %s' => 'Welcome, %s',
        ],
    ];

    if ( isset( $replacements[ $domain ][ $original ] ) ) {
        return $replacements[ $domain ][ $original ];
    }

    return $translated;
}

add_action( 'wp_footer', function () {
    ?>
    <button id="back-to-top" aria-label="Back to top" style="
        display:none;position:fixed;bottom:2rem;right:2rem;z-index:9999;
        width:44px;height:44px;border-radius:50%;border:none;cursor:pointer;
        background:#333;color:#fff;font-size:1.2rem;line-height:44px;text-align:center;">
        &#8679;
    </button>
    <script>
    (function(){
        var btn = document.getElementById('back-to-top');
        window.addEventListener('scroll', function(){
            btn.style.display = window.scrollY > 300 ? 'block' : 'none';
        });
        btn.addEventListener('click', function(){
            window.scrollTo({top:0, behavior:'smooth'});
        });
    })();
    </script>
    <?php
} );

add_filter( 'wp_revisions_to_keep', function( $num, $post ) {
	$limits = [
		'post' => 10,
		'page'  => 5,
	];
	return isset( $limits[ $post->post_type ] ) ? $limits[ $post->post_type ] : $num;
}, 10, 2 );

add_filter( 'woocommerce_payment_complete_order_status', function( $status, $order_id, $order ) {
    // Options: 'completed' for all paid orders, or check for virtual-only below.
    if ( $order && $order->has_downloadable_item() ) {
        return 'completed';
    }

    // Complete virtual-only orders.
    $virtual_only = true;
    foreach ( $order->get_items() as $item ) {
        $product = $item->get_product();
        if ( $product && ! $product->is_virtual() ) {
            $virtual_only = false;
            break;
        }
    }

    return $virtual_only ? 'completed' : $status;
}, 10, 3 );

add_filter( 'sanitize_file_name', function( $filename ) {
    // Transliterate accented characters to ASCII equivalents
    $filename = remove_accents( $filename );

    // Separate name from extension
    $ext  = pathinfo( $filename, PATHINFO_EXTENSION );
    $name = pathinfo( $filename, PATHINFO_FILENAME );

    // Remove any characters that are not alphanumeric, dashes, or underscores
    $name = strtolower( $name );
    $name = preg_replace( '/[^a-z0-9\-_]/', '-', $name );
    $name = preg_replace( '/-+/', '-', $name );
    $name = trim( $name, '-' );

    return $ext ? "{$name}.{$ext}" : $name;
} );

// Save a post meta flag to hide the featured image on singular views.
add_action( 'post_submitbox_misc_actions', function() {
    global $post;
    wp_nonce_field( 'hide_featured_image', 'hfi_nonce' );
    $checked = get_post_meta( $post->ID, '_hide_featured_image', true );
    echo '<div class="misc-pub-section"><label><input type="checkbox" name="hide_featured_image" value="1" ' . checked( $checked, '1', false ) . '> Hide featured image on singular view</label></div>';
} );

add_action( 'save_post', function( $post_id ) {
    if ( ! isset( $_POST['hfi_nonce'] ) || ! wp_verify_nonce( $_POST['hfi_nonce'], 'hide_featured_image' ) ) return;
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
    if ( ! current_user_can( 'edit_post', $post_id ) ) return;
    update_post_meta( $post_id, '_hide_featured_image', isset( $_POST['hide_featured_image'] ) ? '1' : '' );
} );

// Filter out the thumbnail when the flag is set on a singular page/post.
add_filter( 'post_thumbnail_html', function( $html ) {
    if ( is_singular() && in_the_loop() && get_post_meta( get_the_ID(), '_hide_featured_image', true ) === '1' ) {
        return '';
    }
    return $html;
} );

add_filter( 'wp_mail', '__return_false' );

add_filter( 'rest_authentication_errors', function( $result ) {
    if ( ! empty( $result ) ) {
        return $result;
    }
    if ( ! is_user_logged_in() ) {
        return new WP_Error(
            'rest_login_required',
            __( 'REST API restricted to authenticated users.', 'text-domain' ),
            array( 'status' => rest_authorization_required_code() )
        );
    }
    return $result;
} );

add_filter( 'upload_mimes', function( $mimes ) {
    $mimes['svg']  = 'image/svg+xml';
    $mimes['csv']  = 'text/csv';
    $mimes['xml']  = 'text/xml';
    $mimes['zip']  = 'application/zip';
    $mimes['ai']   = 'application/postscript';
    $mimes['mobi'] = 'application/x-mobipocket-ebook';
    $mimes['dwg']  = 'application/acad';
    // Add or remove entries as needed.
    return $mimes;
} );

// Required in WordPress 5.1+ to pass the real MIME check.
add_filter( 'wp_check_filetype_and_ext', function( $data, $file, $filename, $mimes ) {
    if ( ! $data['type'] ) {
        $ext = strtolower( pathinfo( $filename, PATHINFO_EXTENSION ) );
        $allowed = wp_get_mime_types();
        if ( isset( $allowed[ $ext ] ) ) {
            $data['ext']  = $ext;
            $data['type'] = $allowed[ $ext ];
        }
    }
    return $data;
}, 10, 4 );

// Register custom page templates
add_filter( 'theme_page_templates', function( $templates ) {
    $templates['tpl-fullwidth.php'] = __( 'Full Width' );
    $templates['tpl-blank.php']     = __( 'Blank' );
    $templates['tpl-no-sidebar.php'] = __( 'No Sidebar' );
    return $templates;
} );

// Serve the template files from the plugin/snippet folder
add_filter( 'template_include', function( $template ) {
    $page_template = get_post_meta( get_the_ID(), '_wp_page_template', true );

    $map = [
        'tpl-fullwidth.php'  => get_stylesheet_directory() . '/tpl-fullwidth.php',
        'tpl-blank.php'      => get_stylesheet_directory() . '/tpl-blank.php',
        'tpl-no-sidebar.php' => get_stylesheet_directory() . '/tpl-no-sidebar.php',
    ];

    if ( isset( $map[ $page_template ] ) && file_exists( $map[ $page_template ] ) ) {
        return $map[ $page_template ];
    }

    return $template;
} );

// Schedule the event on activation.
register_activation_hook( __FILE__, function () {
    if ( ! wp_next_scheduled( 'publish_missed_scheduled_posts' ) ) {
        wp_schedule_event( time(), 'every_15_minutes', 'publish_missed_scheduled_posts' );
    }
} );

// Add a 15-minute interval.
add_filter( 'cron_schedules', function ( $schedules ) {
    $schedules['every_15_minutes'] = [
        'interval' => 900,
        'display'  => __( 'Every 15 Minutes' ),
    ];
    return $schedules;
} );

// Publish any missed scheduled posts.
add_action( 'publish_missed_scheduled_posts', function () {
    $missed = get_posts( [
        'post_status'    => 'future',
        'date_query'     => [ [ 'column' => 'post_date', 'before' => 'now' ] ],
        'posts_per_page' => -1,
        'post_type'      => 'any',
    ] );
    foreach ( $missed as $post ) {
        wp_publish_post( $post->ID );
    }
} );

// Clean up on deactivation.
register_deactivation_hook( __FILE__, function () {
    wp_clear_scheduled_hook( 'publish_missed_scheduled_posts' );
} );

document.addEventListener('DOMContentLoaded', function () {
  var links = document.querySelectorAll('a[href]');
  var host  = window.location.hostname;

  links.forEach(function (link) {
    var href = link.getAttribute('href');
    if (href && href.indexOf('://') !== -1 && href.indexOf(host) === -1) {
      link.addEventListener('click', function (e) {
        e.preventDefault();
        window.open(href, '_blank');
      });
    }
  });
});

add_action( 'admin_init', function () {
    // Allow AJAX and CLI; change the capability and redirect URL to suit.
    if ( wp_doing_ajax() || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
        return;
    }

    $required_cap  = 'edit_posts'; // e.g. 'manage_options' for admins only
    $redirect_url  = home_url( '/' );

    if ( ! current_user_can( $required_cap ) ) {
        wp_safe_redirect( $redirect_url );
        exit;
    }
} );

add_filter( 'admin_footer_text', function( $text ) {
    $ip         = $_SERVER['SERVER_ADDR'] ?? 'N/A';
    $php        = phpversion();
    $os         = PHP_OS;
    $mem_limit  = ini_get( 'memory_limit' );
    $wp_limit   = WP_MEMORY_LIMIT;
    $mem_used   = memory_get_usage( true );
    $mem_bytes  = wp_convert_hr_to_bytes( $mem_limit );
    $percent    = $mem_bytes > 0 ? round( ( $mem_used / $mem_bytes ) * 100, 1 ) : 0;

    $color = '';
    if ( $percent >= 90 ) {
        $color = 'color:red;';
    } elseif ( $percent >= 75 ) {
        $color = 'color:#f4a0a0;';
    }

    $used_mb = round( $mem_used / 1048576, 2 );

    return sprintf(
        'IP: <strong>%s</strong> | PHP: <strong>%s</strong> | OS: <strong>%s</strong> | Memory: <strong>%s MB</strong> / <strong>%s</strong> (<span style="%s"><strong>%s%%</strong></span>) | WP Limit: <strong>%s</strong>',
        esc_html( $ip ), esc_html( $php ), esc_html( $os ),
        $used_mb, esc_html( $mem_limit ),
        esc_attr( $color ), $percent,
        esc_html( $wp_limit )
    );
} );

// Site-wide head code
add_action( 'wp_head', function () {
    echo '<!-- your head code here -->';
} );

// Site-wide footer code
add_action( 'wp_footer', function () {
    echo '<!-- your footer code here -->';
} );

// Per-post/page head code (store snippet in a custom field named "head_code")
add_action( 'wp_head', function () {
    if ( is_singular() ) {
        $code = get_post_meta( get_the_ID(), 'head_code', true );
        if ( $code ) echo $code;
    }
} );

// Per-post/page footer code (store snippet in a custom field named "footer_code")
add_action( 'wp_footer', function () {
    if ( is_singular() ) {
        $code = get_post_meta( get_the_ID(), 'footer_code', true );
        if ( $code ) echo $code;
    }
} );

add_action( 'template_redirect', function () {
    if ( ! is_attachment() ) {
        return;
    }

    $post        = get_post();
    $parent_id   = $post ? $post->post_parent : 0;
    $parent_post = $parent_id ? get_post( $parent_id ) : null;

    if ( $parent_post && $parent_post->post_status === 'publish' ) {
        // Parent exists and is published: 301 to parent post.
        wp_redirect( get_permalink( $parent_post ), 301 );
        exit;
    } elseif ( ! $parent_post || $parent_post->post_status === 'trash' ) {
        // Parent is trashed or never existed: 404 to avoid redirect loops.
        global $wp_query;
        $wp_query->set_404();
        status_header( 404 );
        return;
    } else {
        // Parent deleted from trash (no post record): 302 to home.
        wp_redirect( home_url( '/' ), 302 );
        exit;
    }
} );

// Add ID column to post/page/custom post type list tables
add_filter( 'manage_posts_columns', 'catch_ids_add_column' );
add_filter( 'manage_pages_columns', 'catch_ids_add_column' );
function catch_ids_add_column( $columns ) {
    $columns['catch_id'] = 'ID';
    return $columns;
}
add_action( 'manage_posts_custom_column', 'catch_ids_column_value', 10, 2 );
add_action( 'manage_pages_custom_column', 'catch_ids_column_value', 10, 2 );
function catch_ids_column_value( $column, $post_id ) {
    if ( 'catch_id' === $column ) {
        echo esc_html( $post_id );
    }
}

// Add ID column to media library
add_filter( 'manage_media_columns', 'catch_ids_add_column' );
add_action( 'manage_media_custom_column', 'catch_ids_column_value', 10, 2 );

// Add ID column to taxonomy (category/tag) list tables
add_filter( 'manage_edit-category_columns', 'catch_ids_add_column' );
add_filter( 'manage_edit-post_tag_columns', 'catch_ids_add_column' );
add_filter( 'manage_category_custom_column', 'catch_ids_tax_value', 10, 3 );
add_filter( 'manage_post_tag_custom_column', 'catch_ids_tax_value', 10, 3 );
function catch_ids_tax_value( $out, $column, $term_id ) {
    if ( 'catch_id' === $column ) {
        return esc_html( $term_id );
    }
    return $out;
}

// Add ID column to users list table
add_filter( 'manage_users_columns', 'catch_ids_add_column' );
add_action( 'manage_users_custom_column', 'catch_ids_user_value', 10, 3 );
function catch_ids_user_value( $out, $column, $user_id ) {
    if ( 'catch_id' === $column ) {
        return esc_html( $user_id );
    }
    return $out;
}

add_shortcode( 'sc_embed_player', function( $atts ) {
	$atts = shortcode_atts(
		[
			'fileurl'    => '',
			'autoplay'   => 'no',
			'loop'       => 'no',
		],
		$atts,
		'sc_embed_player'
	);

	if ( empty( $atts['fileurl'] ) ) {
		return '';
	}

	$autoplay = ( $atts['autoplay'] === 'yes' ) ? ' autoplay' : '';
	$loop     = ( $atts['loop'] === 'yes' ) ? ' loop' : '';
	$url      = esc_url( $atts['fileurl'] );

	return '<audio controls' . $autoplay . $loop . ' style="width:100%;">
		<source src="' . $url . '">
		Your browser does not support the audio element.
	</audio>';
} );

// Disable core, plugin, and theme update checks
add_filter( 'pre_option_update_core',    '__return_null' );
add_filter( 'pre_option_update_plugins', '__return_null' );
add_filter( 'pre_option_update_themes',  '__return_null' );

remove_action( 'wp_version_check',    'wp_version_check' );
remove_action( 'wp_update_plugins',   'wp_update_plugins' );
remove_action( 'wp_update_themes',    'wp_update_themes' );

add_filter( 'auto_update_core',   '__return_false' );
add_filter( 'auto_update_plugin', '__return_false' );
add_filter( 'auto_update_theme',  '__return_false' );

// Remove update nag and dashboard widget
remove_action( 'admin_notices', 'update_nag', 3 );
add_filter( 'site_transient_update_core',    '__return_false' );
add_filter( 'site_transient_update_plugins', '__return_false' );
add_filter( 'site_transient_update_themes',  '__return_false' );

// Change 'my_secret_slug' to your chosen slug.
define( 'LOGIN_SLUG', 'my_secret_slug' );

add_action( 'init', function () {
    if ( ! is_admin() ) {
        $request = parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH );
        if ( strpos( $request, 'wp-login.php' ) !== false ) {
            if ( empty( $_GET[ LOGIN_SLUG ] ) ) {
                wp_redirect( home_url( '/' ) );
                exit;
            }
        }
    }
} );

add_shortcode( 'evp_embed_video', function( $atts ) {
	$a = shortcode_atts( [
		'url'      => '',
		'poster'   => '',
		'width'    => '100%',
		'autoplay' => 'false',
		'loop'     => 'false',
		'muted'    => 'false',
		'preload'  => 'metadata',
	], $atts );

	if ( empty( $a['url'] ) ) {
		return '';
	}

	$autoplay = filter_var( $a['autoplay'], FILTER_VALIDATE_BOOLEAN ) ? ' autoplay' : '';
	$loop     = filter_var( $a['loop'],     FILTER_VALIDATE_BOOLEAN ) ? ' loop'     : '';
	$muted    = filter_var( $a['muted'],    FILTER_VALIDATE_BOOLEAN ) ? ' muted'    : '';
	$poster   = $a['poster'] ? ' poster="' . esc_url( $a['poster'] ) . '"' : '';
	$width    = esc_attr( $a['width'] );

	return sprintf(
		'<video style="width:%s;height:auto;" controls preload="%s"%s%s%s%s><source src="%s" type="video/mp4"></video>',
		$width,
		esc_attr( $a['preload'] ),
		$poster,
		$autoplay,
		$loop,
		$muted,
		esc_url( $a['url'] )
	);
} );

add_shortcode( 'pdf', function( $atts ) {
    $atts = shortcode_atts( [
        'url'    => '',
        'width'  => '100%',
        'height' => '600px',
    ], $atts );

    $url = esc_url( $atts['url'] );
    if ( ! $url ) {
        return '';
    }

    // Use Google Doc Viewer for Chrome / mobile, direct iframe otherwise.
    $is_chrome = isset( $_SERVER['HTTP_USER_AGENT'] ) &&
                 str_contains( $_SERVER['HTTP_USER_AGENT'], 'Chrome' );
    $src = $is_chrome
        ? 'https://docs.google.com/viewer?url=' . rawurlencode( $url ) . '&embedded=true'
        : $url;

    return sprintf(
        '<iframe src="%s" width="%s" height="%s" style="border:none;"></iframe>',
        esc_url( $src ),
        esc_attr( $atts['width'] ),
        esc_attr( $atts['height'] )
    );
} );

add_filter( 'the_content_feed', 'prefix_rss_featured_image' );
function prefix_rss_featured_image( $content ) {
    if ( is_feed() && has_post_thumbnail() ) {
        $image   = get_the_post_thumbnail( null, 'large', [ 'style' => 'display:block;margin:0 auto 12px;' ] );
        $content = $image . $content;
    }
    return $content;
}

add_action( 'wp_footer', function () {
    ?>
    <script>
    (function () {
        if (!window.IntersectionObserver) return;
        const nav = navigator.connection;
        if (nav && (nav.saveData || /2g/.test(nav.effectiveType))) return;

        const prefetched = new Set();
        function prefetch(url) {
            if (prefetched.has(url)) return;
            prefetched.add(url);
            const link = document.createElement('link');
            link.rel = 'prefetch';
            link.href = url;
            document.head.appendChild(link);
        }

        const queue = [];
        let timer;
        function enqueue(url) {
            if (!prefetched.has(url)) queue.push(url);
            if (!timer) timer = setInterval(() => {
                const batch = queue.splice(0, 3);
                batch.forEach(prefetch);
                if (!queue.length) { clearInterval(timer); timer = null; }
            }, 1000);
        }

        const observer = new IntersectionObserver(entries => {
            entries.forEach(e => { if (e.isIntersecting) enqueue(e.target.href); });
        });

        requestIdleCallback(() => {
            document.querySelectorAll('a[href^="<?php echo esc_js( home_url() ); ?>"]')
                .forEach(a => observer.observe(a));
        });

        document.addEventListener('mouseover', e => {
            const a = e.target.closest('a');
            if (a && a.href.startsWith('<?php echo esc_js( home_url() ); ?>')) prefetch(a.href);
        });
    })();
    </script>
    <?php
}, 20 );

// Remove the category base (e.g. /category/) from category URLs.
add_filter( 'category_base', '__return_empty_string' );

// Flush rewrite rules on activation / deactivation.
register_activation_hook( __FILE__, function () {
    update_option( 'category_base', '' );
    flush_rewrite_rules();
} );
register_deactivation_hook( __FILE__, 'flush_rewrite_rules' );

add_action( 'wp_enqueue_scripts', function () {
    if ( ! is_singular() ) {
        return;
    }

    $post = get_post();
    if ( ! $post || ! has_blocks( $post->post_content ) ) {
        return;
    }

    // Only load when the post contains a gallery or image block.
    if ( ! has_block( 'core/gallery', $post ) && ! has_block( 'core/image', $post ) ) {
        return;
    }

    // baguetteBox via CDN — swap for a local copy if preferred.
    wp_enqueue_style(
        'baguettebox',
        'https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.11.1/baguetteBox.min.css',
        [],
        '1.11.1'
    );
    wp_enqueue_script(
        'baguettebox',
        'https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.11.1/baguetteBox.min.js',
        [],
        '1.11.1',
        true
    );
    wp_add_inline_script( 'baguettebox', 'document.addEventListener("DOMContentLoaded",function(){baguetteBox.run(".wp-block-gallery,.wp-block-image");});' );
} );

add_action( 'after_setup_theme', function () {
    // Roles that should NOT see the admin bar.
    $hidden_roles = [ 'subscriber', 'customer' ];

    $user = wp_get_current_user();

    if ( empty( $user->roles ) ) {
        // Guest — hide the bar.
        show_admin_bar( false );
        return;
    }

    if ( array_intersect( $hidden_roles, $user->roles ) ) {
        show_admin_bar( false );
    }
} );

add_action( 'after_setup_theme', function () {
    // Hide admin bar for all users. To target a role, wrap in a current_user_can() check.
    show_admin_bar( false );
} );

.entry-meta .author,
.entry-meta .posted-on {
    display: none;
}

add_action( 'wp_enqueue_scripts', function () {
    wp_deregister_script( 'jquery' );
    wp_deregister_script( 'jquery-core' );
    wp_deregister_script( 'jquery-migrate' );

    wp_register_script(
        'jquery-core',
        'https://code.jquery.com/jquery-3.7.1.min.js',
        [],
        '3.7.1',
        false
    );
    wp_register_script(
        'jquery-migrate',
        'https://code.jquery.com/jquery-migrate-3.4.1.min.js',
        [ 'jquery-core' ],
        '3.4.1',
        false
    );
    wp_register_script( 'jquery', false, [ 'jquery-core', 'jquery-migrate' ], null, false );
} );

add_filter( 'wp_nav_menu_items', 'custom_login_logout_menu_item', 10, 2 );
function custom_login_logout_menu_item( $items, $args ) {
    // Change 'primary' to your menu theme location slug.
    if ( 'primary' !== $args->theme_location ) {
        return $items;
    }

    if ( is_user_logged_in() ) {
        $items .= '<li class="menu-item"><a href="' . esc_url( wp_logout_url( home_url() ) ) . '">Log Out</a></li>';
    } else {
        $items .= '<li class="menu-item"><a href="' . esc_url( wp_login_url( get_permalink() ) ) . '">Log In</a></li>';
    }

    return $items;
}

// Register a custom nav menu meta box item
add_filter( 'wp_nav_menu_items', 'lolmi_dynamic_menu_item', 10, 2 );
function lolmi_dynamic_menu_item( $items, $args ) {
    // Replace the placeholder URL and swap the label based on login state
    if ( is_user_logged_in() ) {
        $items = preg_replace_callback(
            '/<a[^>]+href=["\']#lolmiloginout#["\'][^>]*>(.*?)<\/a>/i',
            function ( $m ) {
                $label = explode( '|', $m[1] );
                $text  = trim( $label[1] ?? 'Logout' );
                $url   = wp_logout_url( home_url( '/' ) );
                return '<a href="' . esc_url( $url ) . '">' . esc_html( $text ) . '</a>';
            },
            $items
        );
    } else {
        $items = preg_replace_callback(
            '/<a[^>]+href=["\']#lolmiloginout#["\'][^>]*>(.*?)<\/a>/i',
            function ( $m ) {
                $label = explode( '|', $m[1] );
                $text  = trim( $label[0] ?? 'Login' );
                $url   = wp_login_url( home_url( '/' ) );
                return '<a href="' . esc_url( $url ) . '">' . esc_html( $text ) . '</a>';
            },
            $items
        );
    }
    return $items;
}

// Set your desired login slug here
define( 'CUSTOM_LOGIN_SLUG', 'my-login' );

add_action( 'init', function () {
    // Redirect wp-login.php and wp-admin (when not logged in) to 404
    $request = parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH );
    $request = trim( $request, '/' );

    if ( $request === 'wp-login.php' || ( $request === 'wp-admin' && ! is_user_logged_in() ) ) {
        wp_die( 'Not found.', 404 );
    }
} );

add_filter( 'login_url', function ( $url ) {
    return home_url( CUSTOM_LOGIN_SLUG );
}, 10, 1 );

add_action( 'parse_request', function ( $wp ) {
    if ( trim( parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH ), '/' ) === CUSTOM_LOGIN_SLUG ) {
        require_once ABSPATH . 'wp-login.php';
        exit;
    }
} );

add_action( 'wp_footer', function () {
    $js = "document.addEventListener('contextmenu', function(e) {
        if (e.target.tagName === 'IMG') {
            e.preventDefault();
        }
    });";
    // Optionally skip for logged-in users:
    if ( ! is_user_logged_in() ) {
        echo '<script>' . $js . '</script>';
    }
} );

add_action( 'init', function () {
    register_taxonomy_for_object_type( 'category', 'page' );
    register_taxonomy_for_object_type( 'post_tag', 'page' );
} );

add_filter( 'the_content_feed', 'remove_powered_by_wordpress' );
add_filter( 'bloginfo', 'remove_powered_by_wordpress', 10, 2 );

function remove_powered_by_wordpress( $output, $show = '' ) {
    return $output;
}

// Remove the credit text injected via footer action hooks in classic themes.
add_filter( 'twentyseventeen_credits', '__return_empty_string' );

// Universal approach: filter the footer credit string.
add_filter( 'get_bloginfo_rss', 'remove_powered_by_wordpress' );

// For most classic themes, simply replace the footer_credits output.
add_filter( 'twentytwentyone_credits', '__return_empty_string' );
add_filter( 'twentytwenty_credits',    '__return_empty_string' );

// Catch-all: suppress the standard "Proudly powered by WordPress" string.
add_filter( 'site_info', function( $output ) {
    return preg_replace( '/<a[^>]*>Proudly powered by WordPress<\/a>/i', '', $output );
} );

document.addEventListener('contextmenu', function(e) { e.preventDefault(); });

document.addEventListener('keydown', function(e) {
    var blocked = [
        e.ctrlKey && ['c','v','x','s','a','u','f','p','h','l','k','o'].includes(e.key.toLowerCase()),
        [123, 114, 120, 117].includes(e.keyCode) // F12, F3, F6, F9
    ];
    if (blocked.some(Boolean)) e.preventDefault();
});

document.addEventListener('selectstart', function(e) { e.preventDefault(); });
document.addEventListener('dragstart',   function(e) { e.preventDefault(); });
document.addEventListener('copy',        function(e) { e.preventDefault(); });

// Add your code to the <head> section
add_action( 'wp_head', function () {
    ?>
    <!-- Your head code here, e.g. Google Analytics / GTM snippet -->
    <?php
} );

// Add your code immediately after <body> opens
add_action( 'wp_body_open', function () {
    ?>
    <!-- Your body-open code here, e.g. GTM noscript tag -->
    <?php
} );

// Add your code just before </body>
add_action( 'wp_footer', function () {
    ?>
    <!-- Your footer code here, e.g. Facebook Pixel, chat widget -->
    <?php
} );

add_filter( 'woocommerce_package_rates', 'hide_shipping_when_free_is_available', 10, 2 );
function hide_shipping_when_free_is_available( $rates, $package ) {
    $free = array_filter( $rates, fn( $rate ) => 'free_shipping' === $rate->method_id );

    if ( empty( $free ) ) {
        return $rates;
    }

    // Keep local pickup alongside free shipping.
    $keep = array_filter( $rates, fn( $rate ) => 'local_pickup' === $rate->method_id );

    return $free + $keep;
}

add_action( 'admin_head', function () {
    if ( current_user_can( 'administrator' ) ) {
        echo '<style>.notice, .notice-error, .notice-warning, .notice-success, .notice-info, .updated, .update-nag { display: none !important; }</style>';
    }
} );

add_action( 'wp_head', function () {
    $counter_id = '12345678'; // Replace with your Yandex Metrica counter ID.
    ?>
    <!-- Yandex.Metrika counter -->
    <script type="text/javascript">
        (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)};
        m[i].l=1*new Date();
        for (var j = 0; j < document.scripts.length; j++) {if (document.scripts[j].src === r) { return; }}
        k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)})
        (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym");
        ym(<?php echo esc_js( $counter_id ); ?>, "init", { clickmap:true, trackLinks:true, accurateTrackBounce:true });
    </script>
    <noscript><div><img src="https://mc.yandex.ru/watch/<?php echo esc_attr( $counter_id ); ?>" style="position:absolute; left:-9999px;" alt="" /></div></noscript>
    <!-- /Yandex.Metrika counter -->
    <?php
} );

add_action( 'admin_head', function () {
    $custom_css = '
        /* Your custom admin CSS here */
        #wpadminbar { background: #1d2327; }
    ';
    echo '<style>' . $custom_css . '</style>';
} );

// To enqueue an external CSS file instead (or as well):
add_action( 'admin_enqueue_scripts', function () {
    wp_enqueue_style( 'my-admin-css', 'https://example.com/path/to/admin.css' );
} );

// Single product page
add_filter( 'woocommerce_product_single_add_to_cart_text', function( $text, $product ) {
    switch ( $product->get_type() ) {
        case 'simple':     return 'Add to cart';
        case 'external':   return 'Buy product';
        case 'grouped':    return 'Add to cart';
        case 'variable':   return 'Add to cart';
    }
    return $text;
}, 10, 2 );

// Archive / shop pages
add_filter( 'woocommerce_product_add_to_cart_text', function( $text, $product ) {
    switch ( $product->get_type() ) {
        case 'simple':     return 'Add to cart';
        case 'external':   return 'Buy product';
        case 'grouped':    return 'View products';
        case 'variable':   return 'Select options';
    }
    return $text;
}, 10, 2 );

add_action( 'template_redirect', function () {
    ob_start( function ( $html ) {
        $site_url = get_option( 'siteurl' );
        $cdn_url  = 'https://cdn.example.com'; // replace with your CDN URL

        // Rewrite URLs for common static file extensions.
        return preg_replace(
            '#' . preg_quote( $site_url, '#' ) . '(/[^"\']*\.(?:css|js|png|jpg|jpeg|gif|webp|svg|ico|woff2?|ttf|eot))#i',
            $cdn_url . '$1',
            $html
        );
    } );
} );

add_filter( 'post_row_actions', 'snippet_clone_post_link', 10, 2 );
add_filter( 'page_row_actions', 'snippet_clone_post_link', 10, 2 );
function snippet_clone_post_link( $actions, $post ) {
    if ( current_user_can( 'edit_posts' ) ) {
        $url = wp_nonce_url(
            add_query_arg( [ 'action' => 'snippet_clone_post', 'post' => $post->ID ], admin_url( 'admin.php' ) ),
            'snippet_clone_post_' . $post->ID
        );
        $actions['clone'] = '<a href="' . esc_url( $url ) . '">Clone</a>';
    }
    return $actions;
}

add_action( 'admin_action_snippet_clone_post', 'snippet_do_clone_post' );
function snippet_do_clone_post() {
    $post_id = absint( $_GET['post'] ?? 0 );
    check_admin_referer( 'snippet_clone_post_' . $post_id );

    $post = get_post( $post_id );
    if ( ! $post || ! current_user_can( 'edit_posts' ) ) {
        wp_die( 'Not allowed.' );
    }

    $new_id = wp_insert_post( [
        'post_title'   => $post->post_title . ' (Copy)',
        'post_content' => $post->post_content,
        'post_excerpt' => $post->post_excerpt,
        'post_type'    => $post->post_type,
        'post_status'  => 'draft',
        'post_author'  => get_current_user_id(),
    ] );

    // Copy post meta.
    foreach ( get_post_meta( $post_id ) as $key => $values ) {
        foreach ( $values as $value ) {
            add_post_meta( $new_id, $key, maybe_unserialize( $value ) );
        }
    }

    wp_redirect( admin_url( 'edit.php?post_type=' . $post->post_type ) );
    exit;
}

// Output the cookie bar HTML and JS
add_action( 'wp_footer', function () {
    if ( isset( $_COOKIE['cookie_bar_accepted'] ) ) {
        return;
    }
    ?>
    <div id="cookie-bar" style="position:fixed;bottom:0;left:0;right:0;background:#333;color:#fff;padding:12px 20px;text-align:center;z-index:9999;font-size:14px;">
        This website uses cookies to ensure you get the best experience.
        <button id="cookie-bar-accept" style="margin-left:12px;padding:4px 12px;cursor:pointer;">Accept</button>
    </div>
    <script>
    document.getElementById('cookie-bar-accept').addEventListener('click', function () {
        document.cookie = 'cookie_bar_accepted=1; path=/; max-age=' + (60*60*24*365);
        document.getElementById('cookie-bar').style.display = 'none';
    });
    </script>
    <?php
} );

// Replace YOUR_NUMBER with your WhatsApp number in international format (e.g. 15551234567)
define( 'MY_WHATSAPP_NUMBER', 'YOUR_NUMBER' );

add_action( 'wp_footer', 'my_whatsapp_button' );
function my_whatsapp_button() {
    $url = 'https://wa.me/' . MY_WHATSAPP_NUMBER;
    echo '<a href="' . esc_url( $url ) . '" target="_blank" rel="noopener noreferrer"
        style="position:fixed;bottom:20px;right:20px;z-index:9999;background:#25d366;
               color:#fff;border-radius:50%;width:56px;height:56px;display:flex;
               align-items:center;justify-content:center;box-shadow:2px 2px 6px rgba(0,0,0,.3);
               font-size:28px;text-decoration:none;" aria-label="Chat on WhatsApp">
        &#128172;
    </a>';
}

// Replace the login logo
add_filter( 'login_headerurl', fn() => home_url() );
add_filter( 'login_headertext', fn() => get_bloginfo( 'name' ) );

add_action( 'login_enqueue_scripts', function () {
    ?>
    <style>
        #login h1 a {
            background-image: url('<?php echo esc_url( get_theme_file_uri( 'images/custom-logo.png' ) ); ?>');
            background-size: contain;
            width: 100%;
            height: 80px;
        }
        body.login {
            background-color: #f0f0f0;
        }
    </style>
    <?php
} );

add_action( 'wp_enqueue_scripts', function() {
    if ( ! WC()->cart || WC()->cart->is_empty() ) {
        wp_dequeue_script( 'wc-cart-fragments' );
    }
}, 11 );

add_filter( 'wp_lazy_loading_enabled', '__return_false' );

add_action( 'template_redirect', function () {
    if ( is_attachment() ) {
        global $wp_query;
        $wp_query->set_404();
        status_header( 404 );
        nocache_headers();
        include get_query_template( '404' );
        exit;
    }
} );

// Rename new attachment slugs to their ID so they don't reserve pretty slugs.
add_filter( 'wp_insert_attachment_data', function ( $data ) {
    $data['post_name'] = uniqid( 'attachment-' );
    return $data;
} );

add_filter( 'intermediate_image_sizes_advanced', function( $sizes ) {
    unset(
        $sizes['thumbnail'],
        $sizes['medium'],
        $sizes['medium_large'],
        $sizes['large'],
        $sizes['1536x1536'],
        $sizes['2048x2048']
    );
    return $sizes;
} );

// Prevent WordPress from scaling down large originals.
add_filter( 'big_image_size_threshold', '__return_false' );

// Hide update notifications in the admin
add_filter( 'site_transient_update_plugins', '__return_false' );
add_filter( 'site_transient_update_themes',  '__return_false' );
add_filter( 'site_transient_update_core',    '__return_false' );

// Remove the "updates" admin menu badge and dashboard widget
remove_action( 'admin_notices', 'update_nag', 3 );
add_filter( 'update_footer', '__return_empty_string', 11 );

// Disable auto-update email notifications for plugins and themes
add_filter( 'auto_plugin_update_send_email', '__return_false' );
add_filter( 'auto_theme_update_send_email',  '__return_false' );
add_filter( 'send_core_update_notification_email', '__return_false' );

add_action( 'admin_head', function () {
    if ( ! current_user_can( 'manage_options' ) ) {
        remove_all_actions( 'admin_notices' );
        remove_all_actions( 'all_admin_notices' );
        add_filter( 'site_transient_update_plugins', '__return_false' );
        add_filter( 'site_transient_update_themes',  '__return_false' );
    }
} );

add_filter( 'wp_sitemaps_enabled', '__return_false' );

add_action( 'phpmailer_init', function ( $phpmailer ) {
    $phpmailer->isSMTP();
    $phpmailer->Host       = 'smtp.elasticemail.com';
    $phpmailer->SMTPAuth   = true;
    $phpmailer->Port       = 2525;
    $phpmailer->Username   = 'YOUR_ELASTIC_EMAIL_ADDRESS';
    $phpmailer->Password   = 'YOUR_ELASTIC_EMAIL_SMTP_PASSWORD';
    $phpmailer->SMTPSecure = 'tls';
} );

add_shortcode( 'calendly', function( $atts ) {
    $a = shortcode_atts( [
        'url'    => '',
        'type'   => '1',   // 1 = inline, 2 = popup button
        'text'   => 'Schedule time with me',
        'height' => '630',
    ], $atts );

    if ( empty( $a['url'] ) ) {
        return '';
    }

    $url = esc_url( $a['url'] );

    // Enqueue Calendly widget script
    wp_enqueue_script( 'calendly-widget', 'https://assets.calendly.com/assets/external/widget.js', [], null, true );

    if ( '2' === $a['type'] ) {
        // Popup button
        wp_enqueue_style( 'calendly-widget-css', 'https://assets.calendly.com/assets/external/widget.css', [], null );
        $text = esc_html( $a['text'] );
        return "<a href=\"\" onclick=\"Calendly.initPopupWidget({url:'{$url}'});return false;\">{$text}</a>";
    }

    // Inline embed (default)
    $height = absint( $a['height'] );
    return "<div class=\"calendly-inline-widget\" data-url=\"{$url}\" style=\"min-width:320px;height:{$height}px;\"></div>";
} );

function equalizeHeights(selector, breakpoint) {
  var $els = jQuery(selector);
  if (breakpoint && jQuery(window).width() < breakpoint) {
    $els.css('height', '');
    return;
  }
  $els.css('height', '');
  var max = 0;
  $els.each(function () { max = Math.max(max, jQuery(this).outerHeight()); });
  $els.css('height', max + 'px');
}

jQuery(function ($) {
  var groups = [
    { selector: '.your-column-selector', breakpoint: 768 }
  ];

  function runAll() {
    groups.forEach(function (g) { equalizeHeights(g.selector, g.breakpoint); });
  }

  runAll();
  $(window).on('resize orientationchange', runAll);
});

add_shortcode( 'facebook-page-plugin', function( $atts ) {
    $a = shortcode_atts( [
        'href'     => 'facebook',
        'width'    => '340',
        'height'   => '500',
        'cover'    => 'true',
        'facepile' => 'true',
        'tabs'     => 'timeline',
        'cta'      => 'false',
        'small'    => 'false',
        'adapt'    => 'true',
        'language' => get_locale(),
    ], $atts );

    $hide_cover   = $a['cover']    === 'true' ? 'false' : 'true';
    $hide_cta     = $a['cta']      === 'true' ? 'true'  : 'false';
    $small_header = $a['small']    === 'true' ? 'true'  : 'false';
    $adapt        = $a['adapt']    === 'true' ? 'true'  : 'false';

    $url = 'https://www.facebook.com/' . esc_attr( $a['href'] );

    return sprintf(
        '<div class="fb-page" data-href="%s" data-width="%s" data-height="%s"
            data-hide-cover="%s" data-show-facepile="%s" data-tabs="%s"
            data-hide-cta="%s" data-small-header="%s" data-adapt-container-width="%s"></div>
        <div id="fb-root"></div>
        <script async defer src="https://connect.facebook.net/%s/sdk.js#xfbml=1&version=v19.0"></script>',
        esc_url( $url ),
        esc_attr( $a['width'] ),
        esc_attr( $a['height'] ),
        esc_attr( $hide_cover ),
        esc_attr( $a['facepile'] ),
        esc_attr( $a['tabs'] ),
        esc_attr( $hide_cta ),
        esc_attr( $small_header ),
        esc_attr( $adapt ),
        esc_attr( $a['language'] )
    );
} );

add_action( 'wp_head', 'fathom_analytics_tracking_script' );
function fathom_analytics_tracking_script() {
    $site_id = 'XXXXXXXX'; // Replace with your Fathom site ID
    echo '<script src="https://cdn.usefathom.com/script.js" data-site="' . esc_attr( $site_id ) . '" defer></script>' . "\n";
}

add_shortcode( 'flipbook', function( $atts ) {
    $a = shortcode_atts( [
        'pdf'    => '',
        'width'  => '100%',
        'height' => '600px',
        'theme'  => 'dark',
        'title'  => '',
        'header' => 'Loading viewer',
        'lightbox' => 'false',
        'cover'  => '',
    ], $atts );

    if ( empty( $a['pdf'] ) ) {
        return '';
    }

    $pdf   = esc_url( $a['pdf'] );
    $w     = esc_attr( $a['width'] );
    $h     = esc_attr( $a['height'] );
    $theme = esc_attr( $a['theme'] );
    $title = esc_attr( $a['title'] );

    return sprintf(
        '<iframe src="https://online.flowpaper.com/embed/?pdf=%s&theme=%s&title=%s" width="%s" height="%s" style="border:none;" allowfullscreen></iframe>',
        rawurlencode( $pdf ), $theme, $title, $w, $h
    );
} );

// Add a hidden honeypot field to the comment form via JS
add_action( 'comment_form', function () {
    echo "<script>
        var f = document.getElementById('commentform');
        if (f) {
            var i = document.createElement('input');
            i.type = 'text'; i.name = 'hp_name'; i.value = '';
            i.style.cssText = 'display:none!important';
            f.appendChild(i);
        }
    </script>";
} );

// Reject the comment if the honeypot field is filled in
add_filter( 'preprocess_comment', function ( $data ) {
    if ( ! empty( $_POST['hp_name'] ) ) {
        wp_die( 'Spam detected.', 'Spam', [ 'response' => 403, 'back_link' => true ] );
    }
    return $data;
} );

add_shortcode( 'html_sitemap', function( $atts ) {
    $atts = shortcode_atts( [
        'depth'      => 0,
        'child_of'   => 0,
        'exclude'    => '',
        'include'    => '',
        'sort_column'=> 'menu_order, post_title',
        'sort_order' => 'ASC',
        'post_type'  => 'page',
        'post_status'=> 'publish',
        'class'      => 'html-sitemap',
        'id'         => '',
    ], $atts, 'html_sitemap' );

    $pages = wp_list_pages( [
        'title_li'    => '',
        'echo'        => false,
        'depth'       => (int) $atts['depth'],
        'child_of'    => (int) $atts['child_of'],
        'exclude'     => sanitize_text_field( $atts['exclude'] ),
        'include'     => sanitize_text_field( $atts['include'] ),
        'sort_column' => sanitize_text_field( $atts['sort_column'] ),
        'sort_order'  => sanitize_text_field( $atts['sort_order'] ),
        'post_type'   => sanitize_key( $atts['post_type'] ),
        'post_status' => sanitize_text_field( $atts['post_status'] ),
    ] );

    if ( ! $pages ) {
        return '';
    }

    $id    = $atts['id']    ? ' id="' . esc_attr( $atts['id'] ) . '"' : '';
    $class = $atts['class'] ? ' class="' . esc_attr( $atts['class'] ) . '"' : '';

    return '<ul' . $id . $class . '>' . $pages . '</ul>';
} );

// Enqueue the script via functions.php
add_action( 'wp_enqueue_scripts', function () {
    wp_enqueue_script(
        'smooth-scroll-top',
        get_template_directory_uri() . '/js/smooth-scroll.js',
        [ 'jquery' ],
        '1.0',
        true
    );
} );

// Or inline the behaviour directly:
add_action( 'wp_footer', function () { ?>
<style>
#scroll-to-top{position:fixed;bottom:30px;right:30px;display:none;cursor:pointer;background:#333;color:#fff;padding:10px 14px;border-radius:4px;z-index:9999}
</style>
<div id="scroll-to-top">&#8679;</div>
<script>
(function($){
  $(window).on('scroll', function(){
    $('#scroll-to-top').toggle($(this).scrollTop() > 300);
  });
  $('#scroll-to-top').on('click', function(){
    $('html,body').animate({scrollTop:0}, 600);
  });
  $('a[href^="#"]').not('[href="#"]').on('click', function(e){
    var target = $(this.hash);
    if(!target.length) return;
    e.preventDefault();
    $('html,body').animate({scrollTop: target.offset().top}, 600);
  });
})(jQuery);
</script>
<?php } );

add_action( 'add_meta_boxes', function () {
    if ( ! current_user_can( 'manage_options' ) ) {
        return;
    }
    $post_types = get_post_types( [ 'public' => true ] );
    foreach ( $post_types as $post_type ) {
        add_meta_box(
            'post-metadata-inspector',
            'Post Metadata',
            function ( WP_Post $post ) {
                $meta = get_post_meta( $post->ID );
                if ( empty( $meta ) ) {
                    echo '<p>No metadata found.</p>';
                    return;
                }
                echo '<table style="width:100%;border-collapse:collapse">';
                echo '<tr><th style="text-align:left;padding:4px 8px">Key</th><th style="text-align:left;padding:4px 8px">Value</th></tr>';
                foreach ( $meta as $key => $values ) {
                    $value = implode( ', ', array_map( function ( $v ) {
                        return esc_html( print_r( maybe_unserialize( $v ), true ) );
                    }, $values ) );
                    echo '<tr><td style="padding:4px 8px;vertical-align:top"><code>' . esc_html( $key ) . '</code></td><td style="padding:4px 8px">' . $value . '</td></tr>';
                }
                echo '</table>';
            },
            $post_type,
            'normal',
            'low'
        );
    }
} );

document.addEventListener('DOMContentLoaded', function () {
    document.querySelectorAll('.elementor-section[data-wrapper-link], .elementor-column[data-wrapper-link]').forEach(function (el) {
        var linkData = JSON.parse(el.dataset.wrapperLink);
        if (!linkData || !linkData.url) return;
        el.style.cursor = 'pointer';
        el.addEventListener('click', function (e) {
            if (e.target.closest('a, button, input, select, textarea')) return;
            if (linkData.is_external) {
                window.open(linkData.url, '_blank', linkData.nofollow ? 'noopener noreferrer' : 'noopener');
            } else {
                window.location.href = linkData.url;
            }
        });
    });
});

add_filter( 'wp_nav_menus_columns', function( $columns ) { return $columns; } ); // no-op, just context

/**
 * Adds a "Duplicate" action link on the Menus management page (Appearance > Menus).
 * Usage: call duplicate_nav_menu( $menu_id ) directly, or wire to a custom admin action.
 */
function duplicate_nav_menu( int $menu_id ): int|WP_Error {
    $menu = wp_get_nav_menu_object( $menu_id );
    if ( ! $menu ) {
        return new WP_Error( 'invalid_menu', 'Menu not found.' );
    }

    $new_menu_id = wp_create_nav_menu( $menu->name . ' (Copy)' );
    if ( is_wp_error( $new_menu_id ) ) {
        return $new_menu_id;
    }

    $items = wp_get_nav_menu_items( $menu_id, [ 'post_status' => 'publish,draft' ] );
    $id_map = [];

    foreach ( (array) $items as $item ) {
        $old_id   = $item->ID;
        $new_item = wp_update_nav_menu_item( $new_menu_id, 0, [
            'menu-item-title'     => $item->title,
            'menu-item-url'       => $item->url,
            'menu-item-type'      => $item->type,
            'menu-item-object'    => $item->object,
            'menu-item-object-id' => $item->object_id,
            'menu-item-target'    => $item->target,
            'menu-item-attr-title'=> $item->attr_title,
            'menu-item-classes'   => implode( ' ', (array) $item->classes ),
            'menu-item-xfn'       => $item->xfn,
            'menu-item-status'    => $item->post_status,
            'menu-item-parent-id' => $id_map[ $item->menu_item_parent ] ?? 0,
        ] );
        if ( ! is_wp_error( $new_item ) ) {
            $id_map[ $old_id ] = $new_item;
        }
    }

    return $new_menu_id;
}

add_action( 'template_redirect', function () {
    ob_start( function ( $html ) {
        // Preserve content inside <pre>, <textarea>, and <script>/<style> blocks
        $html = preg_replace( '/<!--(?!\[if).*?-->/s', '', $html );   // strip HTML comments
        $html = preg_replace( '/\s+/', ' ', $html );                   // collapse whitespace
        $html = preg_replace( '/>\s+</', '><', $html );                // remove space between tags
        return trim( $html );
    } );
} );

add_action( 'login_enqueue_scripts', function () {
    $logo_url = get_stylesheet_directory_uri() . '/images/login-logo.png';
    $width     = 200; // px
    $height    = 80;  // px
    ?>
    <style>
        #login h1 a, .login h1 a {
            background-image: url('<?php echo esc_url( $logo_url ); ?>');
            background-size: contain;
            width:  <?php echo absint( $width );  ?>px;
            height: <?php echo absint( $height ); ?>px;
        }
    </style>
    <?php
} );

add_filter( 'login_headerurl', fn() => home_url() );
add_filter( 'login_headertext', fn() => get_bloginfo( 'name' ) );

add_action( 'pre_ping', function ( &$links ) {
    $home = home_url();
    foreach ( $links as $key => $link ) {
        if ( str_starts_with( $link, $home ) ) {
            unset( $links[ $key ] );
        }
    }
} );

// Force HTTPS redirect for all non-SSL requests.
add_action( 'template_redirect', function () {
    if ( ! is_ssl() ) {
        wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], 301 );
        exit;
    }
} );

// Rewrite all HTTP resource URLs to HTTPS in the page output.
add_filter( 'wp_content_url',  'set_url_scheme' );
add_filter( 'plugins_url',     'set_url_scheme' );
add_filter( 'theme_root_uri',  'set_url_scheme' );
add_filter( 'stylesheet_uri',  'set_url_scheme' );
add_filter( 'template_directory_uri', 'set_url_scheme' );
add_filter( 'the_content', function ( $content ) {
    return str_replace( 'http://' . $_SERVER['HTTP_HOST'], 'https://' . $_SERVER['HTTP_HOST'], $content );
} );

add_action( 'wp_head', function () {
    if ( ! is_singular() ) {
        return;
    }

    $post       = get_queried_object();
    $title      = get_the_title( $post );
    $url        = get_permalink( $post );
    $desc       = has_excerpt( $post ) ? get_the_excerpt( $post ) : wp_trim_words( get_the_content( null, false, $post ), 55 );
    $image      = get_the_post_thumbnail_url( $post, 'large' );
    $site_name  = get_bloginfo( 'name' );

    echo '<meta property="og:type"        content="article" />' . "\n";
    echo '<meta property="og:title"       content="' . esc_attr( $title ) . '" />' . "\n";
    echo '<meta property="og:url"         content="' . esc_url( $url ) . '" />' . "\n";
    echo '<meta property="og:description" content="' . esc_attr( $desc ) . '" />' . "\n";
    echo '<meta property="og:site_name"   content="' . esc_attr( $site_name ) . '" />' . "\n";
    if ( $image ) {
        echo '<meta property="og:image"   content="' . esc_url( $image ) . '" />' . "\n";
    }
} );

// Enqueue Pinterest's own "Pin It" widget script
add_action( 'wp_enqueue_scripts', function () {
    wp_enqueue_script(
        'pinterest-pinit',
        'https://assets.pinterest.com/js/pinit.js',
        [],
        null,
        true
    );
} );

// Wrap every post/page image with a Pinterest "Pin It" overlay
add_filter( 'the_content', function ( $content ) {
    return preg_replace(
        '/<img([^>]+src=["\']([^"\']+)["\'][^>]*)>/i',
        '<span style="position:relative;display:inline-block;">$0'
        . '<a href="https://pinterest.com/pin/create/button/?url=' . urlencode( get_permalink() )
        . '&media=$2&description=" '
        . 'data-pin-do="buttonPin" data-pin-count="beside" '
        . 'style="position:absolute;top:4px;left:4px;display:none;" '
        . 'class="pin-it-btn" target="_blank">'
        . '<img src="https://assets.pinterest.com/images/pidgets/pinit_fg_en_rect_gray_20.png" /></a>'
        . '</span>',
        $content
    );
} );

// CSS: show the button on image hover
add_action( 'wp_head', function () {
    echo '<style>
        span:hover > .pin-it-btn { display:inline-block !important; }
    </style>';
} );

add_action( 'wp_head', function () {
    $domain = 'yourdomain.com'; // replace with your site domain
    echo '<script defer data-domain="' . esc_attr( $domain ) . '" src="https://plausible.io/js/script.js"></script>' . "\n";
} );

add_filter( 'style_loader_src',  'bust_asset_cache' );
add_filter( 'script_loader_src', 'bust_asset_cache' );

function bust_asset_cache( $src ) {
    if ( is_admin() ) {
        return $src;
    }
    return add_query_arg( 'bust', time(), $src );
}

add_action( 'wp_footer', function () {
    ?>
    <script>
        var refTagger = {
            settings: {
                bibleVersion: 'ESV',
                addLogosLink: false,
                tooltips: { enable: true }
            }
        };
        (function( d, t ) {
            var g = d.createElement( t ), s = d.getElementsByTagName( t )[0];
            g.src = 'https://api.reftagger.com/v2/RefTagger.js';
            s.parentNode.insertBefore( g, s );
        }( document, 'script' ));
    </script>
    <?php
} );

add_filter( 'request', function( $query_vars ) {
    if ( isset( $query_vars['feed'] ) ) {
        $query_vars['post_type'] = array( 'post', 'page' );
    }
    return $query_vars;
} );

add_shortcode( 'current_date', function( $atts ) {
    $atts = shortcode_atts( [
        'format' => 'jS F Y',
        'size'   => '',
        'color'  => '',
    ], $atts, 'current_date' );

    $date = date_i18n( $atts['format'] );

    if ( $atts['size'] || $atts['color'] ) {
        $style = '';
        if ( $atts['size'] )  $style .= 'font-size:' . esc_attr( $atts['size'] ) . ';';
        if ( $atts['color'] ) $style .= 'color:' . esc_attr( $atts['color'] ) . ';';
        return '<span style="' . $style . '">' . esc_html( $date ) . '</span>';
    }

    return esc_html( $date );
} );

add_shortcode( 'redirect', function( $atts ) {
    $atts = shortcode_atts(
        [ 'url' => '', 'sec' => 0, 'show_message' => 'true' ],
        $atts,
        'redirect'
    );

    $url = esc_url( $atts['url'] );
    $sec = max( 0, (int) $atts['sec'] );

    if ( ! $url ) {
        return '';
    }

    $show = ! in_array( strtolower( $atts['show_message'] ), [ 'false', '0', 'no', 'off' ], true );
    $msg  = $show ? '<p>Please wait, redirecting&hellip;</p>' : '';

    return sprintf(
        '<meta http-equiv="refresh" content="%d;url=%s">%s',
        $sec,
        $url,
        $msg
    );
} );

add_filter( 'widget_text', 'do_shortcode' );

// Add ID column to posts, pages, and other post types
add_filter( 'manage_posts_columns', 'show_id_column' );
add_filter( 'manage_pages_columns', 'show_id_column' );
function show_id_column( $columns ) {
    $columns['post_id'] = 'ID';
    return $columns;
}

add_action( 'manage_posts_custom_column', 'show_id_column_value', 10, 2 );
add_action( 'manage_pages_custom_column', 'show_id_column_value', 10, 2 );
function show_id_column_value( $column, $post_id ) {
    if ( 'post_id' === $column ) {
        echo esc_html( $post_id );
    }
}

// Add ID column to taxonomy term lists (categories, tags, etc.)
add_filter( 'manage_edit-category_columns', 'show_term_id_column' );
add_filter( 'manage_edit-post_tag_columns', 'show_term_id_column' );
function show_term_id_column( $columns ) {
    $columns['term_id'] = 'ID';
    return $columns;
}

add_filter( 'manage_category_custom_column', 'show_term_id_column_value', 10, 3 );
add_filter( 'manage_post_tag_custom_column', 'show_term_id_column_value', 10, 3 );
function show_term_id_column_value( $content, $column, $term_id ) {
    if ( 'term_id' === $column ) {
        return esc_html( $term_id );
    }
    return $content;
}

add_shortcode( 'showmodule', function( $atts ) {
    $atts = shortcode_atts( [ 'id' => 0 ], $atts, 'showmodule' );
    $id   = absint( $atts['id'] );
    if ( ! $id ) {
        return '';
    }
    $post = get_post( $id );
    if ( ! $post || 'et_pb_layout' !== $post->post_type ) {
        return '';
    }
    return do_shortcode( $post->post_content );
} );

add_action( 'login_form', function () {
    $number = rand( 100, 999 );
    echo '<p>
        <label>Security Check: enter the number <strong id="simple-captcha-num"></strong><br>
        <input type="text" name="simple_captcha" autocomplete="off" /></label>
        <input type="hidden" name="simple_captcha_answer" id="simple-captcha-answer" />
    </p>
    <script>
        var n = ' . $number . ';
        document.getElementById("simple-captcha-num").textContent = n;
        document.getElementById("simple-captcha-answer").value = n;
    </script>';
} );

add_filter( 'authenticate', function ( $user, $username, $password ) {
    if ( empty( $username ) && empty( $password ) ) {
        return $user;
    }
    $answer   = isset( $_POST['simple_captcha_answer'] ) ? intval( $_POST['simple_captcha_answer'] ) : 0;
    $entered  = isset( $_POST['simple_captcha'] )        ? intval( $_POST['simple_captcha'] )        : -1;
    if ( $entered !== $answer || $answer === 0 ) {
        return new WP_Error( 'captcha_failed', __( 'Incorrect security number. Please try again.' ) );
    }
    return $user;
}, 30, 3 );

add_action( 'wp_footer', 'my_simple_side_tab' );
function my_simple_side_tab() {
    $tab_text  = 'Get a Quote';
    $tab_url   = '/contact/';
    $side      = 'right'; // 'left' or 'right'
    $top       = '40%';
    $bg_color  = '#e74c3c';
    $text_color = '#ffffff';
    ?>
    <style>
        .simple-side-tab {
            position: fixed;
            <?php echo esc_attr( $side ); ?>: 0;
            top: <?php echo esc_attr( $top ); ?>;
            background: <?php echo esc_attr( $bg_color ); ?>;
            color: <?php echo esc_attr( $text_color ); ?>;
            writing-mode: vertical-rl;
            text-orientation: mixed;
            transform: <?php echo $side === 'right' ? 'rotate(180deg)' : 'none'; ?>;
            padding: 14px 8px;
            text-decoration: none;
            font-weight: bold;
            z-index: 9999;
            border-radius: <?php echo $side === 'right' ? '6px 0 0 6px' : '0 6px 6px 0'; ?>;
        }
    </style>
    <a class="simple-side-tab" href="<?php echo esc_url( $tab_url ); ?>">
        <?php echo esc_html( $tab_text ); ?>
    </a>
    <?php
}

add_action( 'template_redirect', function () {
    if ( current_user_can( 'manage_options' ) ) {
        return;
    }
    status_header( 503 );
    wp_die( '<h1>Under Maintenance</h1><p>The site is temporarily unavailable. Please check back soon.</p>', 'Maintenance', [ 'response' => 503 ] );
} );

// Set the envelope sender (Return-Path) and default From address/name.
add_action( 'phpmailer_init', function ( PHPMailer\PHPMailer\PHPMailer $mailer ) {
    $from_email = '[email protected]'; // change to your sending address
    $from_name  = 'My Site Name';         // change to your sender name

    $mailer->Sender   = $from_email; // envelope sender / Return-Path
    $mailer->From     = $from_email;
    $mailer->FromName = $from_name;
} );

// Override the default WordPress from email and name.
add_filter( 'wp_mail_from',      fn() => '[email protected]' );
add_filter( 'wp_mail_from_name', fn() => 'My Site Name' );

add_filter( 'style_loader_src', function( $src ) {
    if ( strpos( $src, 'fonts.googleapis.com' ) !== false ) {
        if ( strpos( $src, 'display=' ) === false ) {
            $src = add_query_arg( 'display', 'swap', $src );
        } else {
            $src = preg_replace( '/display=[^&]+/', 'display=swap', $src );
        }
    }
    return $src;
}, 10, 1 );

// Enqueue inline preloader styles and script
add_action( 'wp_head', function () {
    echo '<style>
#preloader-overlay {
    position: fixed; inset: 0; z-index: 99999;
    background: #fff;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.4s ease;
}
</style>';
} );

add_action( 'wp_body_open', function () {
    echo '<div id="preloader-overlay">
        <img src="' . esc_url( get_template_directory_uri() . '/images/preloader.gif' ) . '" alt="Loading" width="64" height="64">
    </div>';
} );

add_action( 'wp_footer', function () {
    echo '<script>
window.addEventListener("load", function () {
    var el = document.getElementById("preloader-overlay");
    if (el) { el.style.opacity = "0"; setTimeout(function(){ el.remove(); }, 400); }
});
</script>';
} );

// Configuration
define( 'TOP_BAR_MESSAGE', 'Welcome to our site! Check out our latest news.' );
define( 'TOP_BAR_BTN_TEXT', 'Learn More' );
define( 'TOP_BAR_BTN_URL', 'https://example.com' );
define( 'TOP_BAR_BG_COLOR', '#333333' );
define( 'TOP_BAR_TEXT_COLOR', '#ffffff' );

add_action( 'wp_head', function () {
    echo '<style>
        #simple-top-bar { background:' . TOP_BAR_BG_COLOR . '; color:' . TOP_BAR_TEXT_COLOR . '; text-align:center; padding:10px 16px; font-size:14px; width:100%; box-sizing:border-box; }
        #simple-top-bar a { color:' . TOP_BAR_TEXT_COLOR . '; background:rgba(255,255,255,.2); padding:3px 10px; border-radius:3px; text-decoration:none; margin-left:10px; }
    </style>';
} );

add_action( 'wp_body_open', function () {
    echo '<div id="simple-top-bar">' . esc_html( TOP_BAR_MESSAGE );
    if ( TOP_BAR_BTN_TEXT && TOP_BAR_BTN_URL ) {
        echo '<a href="' . esc_url( TOP_BAR_BTN_URL ) . '">' . esc_html( TOP_BAR_BTN_TEXT ) . '</a>';
    }
    echo '</div>';
} );

add_action( 'template_redirect', function () {
    // Allow logged-in users (admins, editors, etc.) through.
    if ( is_user_logged_in() ) {
        return;
    }

    // Don't redirect the maintenance page itself (adjust slug as needed).
    if ( is_page( 'maintenance' ) ) {
        return;
    }

    wp_redirect( home_url( '/maintenance/' ) );
    exit;
} );

// Add post IDs to exclude in this array.
$unlisted_ids = [42, 99, 123];

add_action( 'pre_get_posts', function ( WP_Query $query ) use ( $unlisted_ids ) {
    if ( is_admin() || empty( $unlisted_ids ) ) {
        return;
    }

    $existing = $query->get( 'post__not_in' ) ?: [];
    $query->set( 'post__not_in', array_unique( array_merge( $existing, $unlisted_ids ) ) );
} );

add_action( 'personal_options_update', 'update_username_on_profile_save' );
add_action( 'edit_user_profile_update', 'update_username_on_profile_save' );

function update_username_on_profile_save( $user_id ) {
    if ( ! current_user_can( 'manage_options' ) ) {
        return;
    }
    $new_username = sanitize_user( $_POST['new_username'] ?? '' );
    if ( $new_username && ! username_exists( $new_username ) ) {
        global $wpdb;
        $wpdb->update( $wpdb->users, [ 'user_login' => $new_username ], [ 'ID' => $user_id ] );
        wp_cache_delete( $user_id, 'users' );
    }
}

add_action( 'show_user_profile', 'render_username_field' );
add_action( 'edit_user_profile', 'render_username_field' );

function render_username_field( $user ) {
    if ( ! current_user_can( 'manage_options' ) ) {
        return;
    }
    echo '<h3>Change Username</h3>
    <table class="form-table"><tr>
        <th><label for="new_username">New Username</label></th>
        <td><input type="text" name="new_username" id="new_username" class="regular-text" /></td>
    </tr></table>';
}

add_filter( 'woocommerce_variable_price_html', function( $price, $product ) {
    $prices = $product->get_variation_prices( true );
    if ( empty( $prices['price'] ) ) {
        return $price;
    }

    $min_price = min( $prices['price'] );
    $max_price = max( $prices['price'] );

    if ( $min_price === $max_price ) {
        return wc_price( $min_price );
    }

    // Change this line to: wc_price( $max_price ) for "Up to", or
    // wc_price( $max_price ) . ' - ' . wc_price( $min_price ) for max-to-min.
    return sprintf( __( 'From %s', 'woocommerce' ), wc_price( $min_price ) );
}, 10, 2 );

add_filter( 'admin_footer_text', function ( $text ) {
    global $wpdb;
    $wp      = get_bloginfo( 'version' );
    $php     = phpversion();
    $mysql   = $wpdb->db_version();
    $server  = $_SERVER['SERVER_SOFTWARE'] ?? 'Unknown';
    return $text . sprintf(
        '  |  WP %s  |  PHP %s  |  MySQL %s  |  %s',
        esc_html( $wp ),
        esc_html( $php ),
        esc_html( $mysql ),
        esc_html( $server )
    );
} );

@view-transition {
    navigation: auto;
}

// Add plus/minus buttons around WooCommerce quantity inputs
add_action( 'woocommerce_before_quantity_input_field', function () {
    echo '<button type="button" class="qty-btn qty-minus" aria-label="' . esc_attr__( 'Decrease quantity', 'woocommerce' ) . '">-</button>';
} );

add_action( 'woocommerce_after_quantity_input_field', function () {
    echo '<button type="button" class="qty-btn qty-plus" aria-label="' . esc_attr__( 'Increase quantity', 'woocommerce' ) . '">+</button>';
} );

// JS: handle button clicks
add_action( 'wp_footer', function () {
    if ( ! is_woocommerce() && ! is_cart() ) return;
    ?>
    <script>
    document.addEventListener('click', function (e) {
        var btn = e.target.closest('.qty-minus, .qty-plus');
        if (!btn) return;
        var input = btn.parentNode.querySelector('input.qty');
        if (!input) return;
        var step  = parseFloat(input.step)  || 1;
        var min   = parseFloat(input.min)   || 0;
        var max   = parseFloat(input.max)   || Infinity;
        var val   = parseFloat(input.value) || min;
        val = btn.classList.contains('qty-plus') ? val + step : val - step;
        input.value = Math.min(Math.max(val, min), max);
        input.dispatchEvent(new Event('change', {bubbles: true}));
    });
    </script>
    <?php
} );

// Replace with your GA4 Measurement ID or GTM container ID.
define( 'WK_GA_ID',  'G-XXXXXXXXXX' );
define( 'WK_GTM_ID', 'GTM-XXXXXXX' );

// Skip tracking for logged-in users.
add_action( 'wp_head', function () {
	if ( is_user_logged_in() ) {
		return;
	}

	$ga_id  = WK_GA_ID;
	$gtm_id = WK_GTM_ID;

	if ( $gtm_id ) {
		echo "<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','{$gtm_id}');</script>\n";
	} elseif ( $ga_id ) {
		echo "<script async src='https://www.googletagmanager.com/gtag/js?id={$ga_id}'></script>
<script>window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments);}gtag('js',new Date());gtag('config','{$ga_id}',{'anonymize_ip':true});</script>\n";
	}
}, 1 );

// Set default products per page
add_filter( 'loop_shop_per_page', function( $cols ) {
    $per_page = isset( $_COOKIE['wc_products_per_page'] ) ? (int) $_COOKIE['wc_products_per_page'] : 12;
    return $per_page > 0 ? $per_page : $cols;
}, 20 );

// Render the dropdown and save choice in a cookie
add_action( 'woocommerce_before_shop_loop', function() {
    $options  = [ 12, 24, 48, -1 ];
    $current  = isset( $_COOKIE['wc_products_per_page'] ) ? (int) $_COOKIE['wc_products_per_page'] : 12;
    $labels   = array_map( fn( $n ) => $n === -1 ? __( 'All', 'woocommerce' ) : $n, $options );

    echo '<form method="get" class="products-per-page-form" style="margin-bottom:1em;">';
    echo '<label for="ppp">' . esc_html__( 'Products per page:', 'woocommerce' ) . ' </label>';
    echo '<select name="ppp" id="ppp" onchange="this.form.submit()">';
    foreach ( $options as $i => $val ) {
        printf(
            '<option value="%1$d"%2$s>%3$s</option>',
            $val,
            selected( $current, $val, false ),
            esc_html( $labels[ $i ] )
        );
    }
    echo '</select></form>';
}, 30 );

// Store the chosen value in a cookie
add_action( 'init', function() {
    if ( isset( $_GET['ppp'] ) ) {
        $val = (int) $_GET['ppp'];
        setcookie( 'wc_products_per_page', $val, time() + MONTH_IN_SECONDS, '/' );
        $_COOKIE['wc_products_per_page'] = $val;
    }
} );

// Assign a sequential order number when a new order is created.
add_action( 'woocommerce_new_order', 'set_sequential_order_number', 10, 1 );
function set_sequential_order_number( $order_id ) {
    $max = (int) get_option( 'sequential_order_number_max', 0 );
    $next = max( $max, $order_id ) + 1;
    update_option( 'sequential_order_number_max', $next );
    update_post_meta( $order_id, '_order_number', $next );
}

// Display the sequential number instead of the post ID.
add_filter( 'woocommerce_order_number', 'display_sequential_order_number', 10, 2 );
function display_sequential_order_number( $order_number, $order ) {
    $sequential = get_post_meta( $order->get_id(), '_order_number', true );
    return $sequential ? $sequential : $order_number;
}

// Add a custom meta box for the body class field
add_action( 'add_meta_boxes', function () {
    add_meta_box( 'custom_body_class', 'Custom Body Class', function ( $post ) {
        $value = get_post_meta( $post->ID, '_custom_body_class', true );
        echo '<input type="text" name="custom_body_class" value="' . esc_attr( $value ) . '" style="width:100%">';
    }, [ 'post', 'page' ], 'side' );
} );

// Save the meta value
add_action( 'save_post', function ( $post_id ) {
    if ( isset( $_POST['custom_body_class'] ) ) {
        update_post_meta( $post_id, '_custom_body_class', sanitize_html_class( $_POST['custom_body_class'] ) );
    }
} );

// Inject the class into the body
add_filter( 'body_class', function ( $classes ) {
    if ( is_singular() ) {
        $custom = get_post_meta( get_the_ID(), '_custom_body_class', true );
        if ( $custom ) {
            $is_mobile = wp_is_mobile();
            if ( str_starts_with( $custom, 'mobile-' ) ) {
                if ( $is_mobile ) {
                    $classes[] = sanitize_html_class( substr( $custom, 7 ) );
                }
            } else {
                $classes[] = sanitize_html_class( $custom );
            }
        }
    }
    return $classes;
} );

add_shortcode( 'wpdts-custom', function( $atts ) {
    $atts = shortcode_atts( [ 'format' => 'Y-m-d H:i:s' ], $atts );
    return date_i18n( $atts['format'] );
} );

add_shortcode( 'wpdts-date', function() {
    return date_i18n( get_option( 'date_format' ) );
} );

add_shortcode( 'wpdts-time', function() {
    return date_i18n( get_option( 'time_format' ) );
} );

add_shortcode( 'wpdts-year', function() {
    return date_i18n( 'Y' );
} );

add_shortcode( 'wpdts-month', function() {
    return date_i18n( 'n' );
} );

add_shortcode( 'wpdts-day', function() {
    return date_i18n( 'j' );
} );

// Record last login time.
add_action( 'wp_login', function ( $user_login, $user ) {
	update_user_meta( $user->ID, 'last_login', time() );
}, 10, 2 );

// Register the column.
add_filter( 'manage_users_columns', function ( $columns ) {
	$columns['last_login'] = 'Last Login';
	return $columns;
} );

// Render the column value.
add_filter( 'manage_users_custom_column', function ( $output, $column, $user_id ) {
	if ( 'last_login' !== $column ) {
		return $output;
	}
	$time = get_user_meta( $user_id, 'last_login', true );
	if ( ! $time ) {
		return '—';
	}
	$date = date_i18n( get_option( 'date_format' ), $time );
	$full = date_i18n( 'Y-m-d H:i:s', $time );
	return '<span title="' . esc_attr( $full ) . '">' . esc_html( $date ) . '</span>';
}, 10, 3 );

// Make the column sortable.
add_filter( 'manage_users_sortable_columns', function ( $columns ) {
	$columns['last_login'] = 'last_login';
	return $columns;
} );

// Handle the sort query.
add_action( 'pre_get_users', function ( $query ) {
	if ( ! is_admin() || 'last_login' !== $query->get( 'orderby' ) ) {
		return;
	}
	$query->set( 'meta_key', 'last_login' );
	$query->set( 'orderby', 'meta_value_num' );
} );

// Add "Buy Now" button after the Add to Cart button on product pages
add_action( 'woocommerce_after_add_to_cart_button', 'simple_buy_now_button' );
function simple_buy_now_button() {
    global $product;
    echo '<a href="' . esc_url( $product->add_to_cart_url() ) . '&buy_now=1" class="button buy-now-button">' . esc_html__( 'Buy Now', 'woocommerce' ) . '</a>';
}

// Handle the Buy Now redirect: clear cart, add product, redirect to checkout
add_action( 'wp_loaded', 'simple_buy_now_redirect' );
function simple_buy_now_redirect() {
    if ( empty( $_GET['buy_now'] ) || empty( $_GET['add-to-cart'] ) ) {
        return;
    }
    $product_id = absint( $_GET['add-to-cart'] );
    $quantity   = isset( $_GET['quantity'] ) ? absint( $_GET['quantity'] ) : 1;
    WC()->cart->empty_cart();
    WC()->cart->add_to_cart( $product_id, $quantity );
    wp_safe_redirect( wc_get_checkout_url() );
    exit;
}