gitlab-instance-0a899031_nomadro/deploy/wordpress/mu-plugins/nomadro-adsense.php

<?php
/**
 * Plugin Name: Nomadro AdSense Optimization
 * Description: AdSense head code, trust schema, performance hygiene, and editorial CSS.
 * Author: Nomadro
 */

if (!defined('ABSPATH')) {
    exit;
}

const NOMADRO_ADSENSE_CLIENT = 'ca-pub-8461145959530971';
/** Filled by observability deploy (Umami website id for nomadro.com). */
const NOMADRO_UMAMI_WEBSITE_ID = 'REPLACE_UMAMI_WEBSITE_ID';

/** AdSense loader + ownership meta (site verification + ads) + Umami. */
add_action('wp_head', static function (): void {
    $client = NOMADRO_ADSENSE_CLIENT;
    echo '<meta name="google-adsense-account" content="' . esc_attr($client) . '">' . "\n";
    echo '<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client='
        . esc_attr($client) . '" crossorigin="anonymous"></script>' . "\n";
    echo '<meta name="author" content="Nomadro Editorial">' . "\n";
    echo '<meta name="theme-color" content="#ffffff">' . "\n";
    // Deploy replaces REPLACE_UMAMI_WEBSITE_ID with a UUID; only emit when set.
    if (preg_match('/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i', NOMADRO_UMAMI_WEBSITE_ID)) {
        echo '<script defer src="https://umami.nomadro.com/script.js" data-website-id="'
            . esc_attr(NOMADRO_UMAMI_WEBSITE_ID) . '"></script>' . "\n";
    }
}, 1);

/** Organization + WebSite JSON-LD for trust/SEO. */
add_action('wp_head', static function (): void {
    if (is_admin()) {
        return;
    }
    $data = [
        '@context' => 'https://schema.org',
        '@graph' => [
            [
                '@type' => 'Organization',
                '@id' => home_url('/#organization'),
                'name' => 'Nomadro',
                'url' => home_url('/'),
                'email' => 'hello@nomadro.com',
                'description' => 'Practical digital nomad guides for remote work, travel systems, and location-independent income.',
            ],
            [
                '@type' => 'WebSite',
                '@id' => home_url('/#website'),
                'url' => home_url('/'),
                'name' => 'Nomadro',
                'publisher' => ['@id' => home_url('/#organization')],
                'inLanguage' => 'en-US',
            ],
        ],
    ];
    echo '<script type="application/ld+json">' . wp_json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . '</script>' . "\n";
}, 5);

/** Serve ads.txt from WordPress root reliably. */
add_action('init', static function (): void {
    $uri = isset($_SERVER['REQUEST_URI']) ? strtok($_SERVER['REQUEST_URI'], '?') : '';
    if ($uri === '/ads.txt') {
        status_header(200);
        header('Content-Type: text/plain; charset=utf-8');
        header('X-Robots-Tag: noindex');
        echo "google.com, pub-8461145959530971, DIRECT, f08c47fec0942fa0\n";
        exit;
    }
});

/** Editorial CSS: readable articles, image presentation, footer trust links. */
add_action('wp_enqueue_scripts', static function (): void {
    $css = <<<'CSS'
:root { --nomadro-accent:#6d28d9; }
body { -webkit-font-smoothing: antialiased; }
.nomadro-hero-figure img,
.wp-block-post-featured-image img,
.wp-post-image {
  border-radius: 14px;
  width: 100%;
  height: auto;
}
.nomadro-hero-figure figcaption,
figure.wp-block-image figcaption {
  color: #667085;
  font-size: 0.92rem;
  margin-top: 0.5rem;
}
.nomadro-callout {
  border-left: 4px solid var(--nomadro-accent) !important;
  background: #f5f3ff !important;
  border-radius: 8px;
  padding: 14px 18px !important;
  margin: 1.5rem 0 !important;
}
.entry-content, .wp-block-post-content {
  font-size: 1.0625rem;
  line-height: 1.75;
}
.entry-content h2, .wp-block-post-content h2 {
  margin-top: 2rem;
  line-height: 1.3;
}
.wp-block-post-excerpt, .entry-summary {
  color: #475467;
}
.nomadro-trust-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: center;
  padding: 1.5rem 1rem 2rem;
  font-size: 0.95rem;
}
.nomadro-trust-footer a { color: #344054; text-decoration: underline; }
CSS;
    wp_register_style('nomadro-adsense-opt', false, [], '1.0.0');
    wp_enqueue_style('nomadro-adsense-opt');
    wp_add_inline_style('nomadro-adsense-opt', $css);
}, 20);

/** Persistent trust links in footer (AdSense reviewers look for these). */
add_action('wp_footer', static function (): void {
    $links = [
        home_url('/about/') => 'About',
        home_url('/contact/') => 'Contact',
        home_url('/privacy-policy/') => 'Privacy Policy',
        home_url('/terms/') => 'Terms of Service',
        home_url('/disclaimer/') => 'Disclaimer',
    ];
    echo '<nav class="nomadro-trust-footer" aria-label="Trust and policy links">';
    foreach ($links as $url => $label) {
        echo '<a href="' . esc_url($url) . '">' . esc_html($label) . '</a>';
    }
    echo '</nav>';
}, 5);

/** Harden & hygiene. */
remove_action('wp_head', 'wp_generator');
add_filter('the_generator', '__return_empty_string');
add_filter('xmlrpc_enabled', '__return_false');

/** Disable comments/pings by default for cleaner review surface. */
add_filter('comments_open', '__return_false', 20, 2);
add_filter('pings_open', '__return_false', 20, 2);
add_filter('comments_array', static function () {
    return [];
}, 10, 2);

/** Better author label in bylines. */
add_filter('the_author', static function ($author) {
    return 'Nomadro Editorial';
});
add_filter('get_the_author_display_name', static function () {
    return 'Nomadro Editorial';
});