<?php
function lwid_setup() {
  add_theme_support('title-tag');
  add_theme_support('post-thumbnails');
  add_theme_support('html5', array('search-form','comment-form','comment-list','gallery','caption'));
  add_image_size('lwid-card', 600, 400, true);
  add_image_size('lwid-hero', 1200, 500, true);
}
add_action('after_setup_theme', 'lwid_setup');

if (!isset($content_width)) $content_width = 1100;
add_post_type_support('page', 'excerpt');

function lwid_clean_head() {
  remove_action('wp_head', 'wp_generator');
  remove_action('wp_head', 'rsd_link');
  remove_action('wp_head', 'wlwmanifest_link');
  remove_action('wp_head', 'wp_shortlink_wp_head');
}
add_action('init', 'lwid_clean_head');

function lwid_front_page_meta_cleanup() {
  if (!is_front_page()) return;
  global $lwid_front_page_title, $lwid_front_page_desc;
  $lwid_front_page_title = get_bloginfo('name');
  $lwid_front_page_desc = 'Sleep health, sleep products, and practical guides to help you sleep better and feel better.';
}
add_action('template_redirect', 'lwid_front_page_meta_cleanup');

function lwid_filter_front_page_document_title($title) {
  global $lwid_front_page_title;
  if (!empty($lwid_front_page_title)) return $lwid_front_page_title;
  return $title;
}
add_filter('pre_get_document_title', 'lwid_filter_front_page_document_title', 99);

function lwid_filter_front_page_document_title_parts($parts) {
  global $lwid_front_page_title;
  if (!empty($lwid_front_page_title)) $parts['title'] = $lwid_front_page_title;
  return $parts;
}
add_filter('document_title_parts', 'lwid_filter_front_page_document_title_parts', 99);

function lwid_filter_rank_math_front_page_title($title) {
  global $lwid_front_page_title;
  if (!empty($lwid_front_page_title)) return $lwid_front_page_title;
  return $title;
}
add_filter('rank_math/frontend/title', 'lwid_filter_rank_math_front_page_title', 99);
add_filter('rank_math/opengraph/facebook/title', 'lwid_filter_rank_math_front_page_title', 99);
add_filter('rank_math/opengraph/twitter/title', 'lwid_filter_rank_math_front_page_title', 99);

function lwid_filter_rank_math_front_page_desc($desc) {
  global $lwid_front_page_desc;
  if (!empty($lwid_front_page_desc)) return $lwid_front_page_desc;
  return $desc;
}
add_filter('rank_math/frontend/description', 'lwid_filter_rank_math_front_page_desc', 99);
add_filter('rank_math/opengraph/facebook/description', 'lwid_filter_rank_math_front_page_desc', 99);
add_filter('rank_math/opengraph/twitter/description', 'lwid_filter_rank_math_front_page_desc', 99);

// Contact form
function lwid_contact_handler() {
  if (empty($_POST['lwid_contact_nonce'])) return;
  if (!wp_verify_nonce($_POST['lwid_contact_nonce'], 'lwid_contact')) return;
  if (empty($_POST['lwid_contact_submit'])) return;
  $name = isset($_POST['lwid_name']) ? sanitize_text_field($_POST['lwid_name']) : '';
  $email = isset($_POST['lwid_email']) ? sanitize_email($_POST['lwid_email']) : '';
  $subject = isset($_POST['lwid_subject']) ? sanitize_text_field($_POST['lwid_subject']) : 'Contact Form';
  $message = isset($_POST['lwid_message']) ? sanitize_textarea_field($_POST['lwid_message']) : '';
  if (!$name || !$email || !$message || !is_email($email)) {
    set_transient('lwid_cf_error', 'Please complete all required fields with a valid email.', 60);
    return;
  }
  $headers = array('Content-Type: text/html; charset=UTF-8', 'Reply-To: '.$name.' <'.$email.'>');
  $body = '<p><b>Name:</b> '.$name.'</p><p><b>Email:</b> '.$email.'</p><p><b>Subject:</b> '.$subject.'</p><p><b>Message:</b><br>'.nl2br($message).'</p>';
  if (wp_mail(get_option('admin_email'), 'lookwhatidig: '.$subject, $body, $headers)) {
    set_transient('lwid_cf_success', 'Message sent! We reply within 24 hours.', 60);
  } else {
    set_transient('lwid_cf_error', 'Send failed. Please email us directly.', 60);
  }
}
add_action('init', 'lwid_contact_handler');

// Email signup
function lwid_signup_handler() {
  if (empty($_POST['lwid_signup_nonce'])) return;
  if (!wp_verify_nonce($_POST['lwid_signup_nonce'], 'lwid_signup')) return;
  if (empty($_POST['lwid_signup_submit'])) return;
  $email = isset($_POST['lwid_signup_email']) ? sanitize_email($_POST['lwid_signup_email']) : '';
  if (!is_email($email)) {
    set_transient('lwid_su_error', 'Please enter a valid email address.', 60);
    return;
  }
  $api = defined('MAILERLITE_API_KEY') ? MAILERLITE_API_KEY : '';
  $grp = defined('MAILERLITE_GROUP_ID') ? MAILERLITE_GROUP_ID : '';
  if (!$api) {
    $list = get_option('lwid_signups', array());
    $list[] = array('email' => $email, 'date' => current_time('mysql'));
    update_option('lwid_signups', $list);
    set_transient('lwid_su_ok_'.md5($email), 1, 120);
    return;
  }
  $groups = $grp ? array($grp) : array();
  $r = wp_remote_post('https://connect.mailerlite.com/api/subscribers', array(
    'headers' => array('Content-Type' => 'application/json', 'Authorization' => 'Bearer '.$api),
    'body' => json_encode(array('email' => $email, 'groups' => $groups)),
    'timeout' => 15,
  ));
  $code = is_wp_error($r) ? 0 : wp_remote_retrieve_response_code($r);
  if ($code === 200 || $code === 201) {
    set_transient('lwid_su_ok_'.md5($email), 1, 120);
  } else {
    set_transient('lwid_su_error', 'Something went wrong. Please try again.', 60);
  }
}
add_action('init', 'lwid_signup_handler');

function lwid_signup_form($atts = array()) {
  $dark = (isset($atts['style']) ? $atts['style'] : 'dark') === 'dark';
  $email = isset($_POST['lwid_signup_email']) ? sanitize_email($_POST['lwid_signup_email']) : '';
  $ok = $email ? get_transient('lwid_su_ok_'.md5($email)) : false;
  $err = get_transient('lwid_su_error');
  if ($err) delete_transient('lwid_su_error');
  if ($dark) {
    $c = array('txt'=>'#fff','sub'=>'rgba(255,255,255,0.4)','inp_bg'=>'rgba(255,255,255,0.07)','inp_br'=>'rgba(255,255,255,0.15)');
  } else {
    $c = array('txt'=>'#0d1b2a','sub'=>'#5a6272','inp_bg'=>'#fff','inp_br'=>'rgba(0,0,0,0.15)');
  }
  ob_start();
  if ($ok): ?>
    <div style="text-align:center;padding:1rem 0"><div style="font-size:2rem;margin-bottom:.5rem">🎉</div><p style="color:<?php echo $c['txt']; ?>;font-weight:500;margin:0">You're in! Check your inbox.</p></div>
  <?php else: ?>
    <?php if ($err): ?><p style="color:#ff6b6b;font-size:.875rem;margin-bottom:.5rem;text-align:center"><?php echo esc_html($err); ?></p><?php endif; ?>
    <form method="POST" action="<?php echo esc_url(get_permalink() ? get_permalink() : home_url('/')); ?>" style="display:flex;max-width:440px;margin:0 auto">
      <?php wp_nonce_field('lwid_signup','lwid_signup_nonce'); ?>
      <input type="email" name="lwid_signup_email" required placeholder="Your email address"
        style="flex:1;padding:.875rem 1.125rem;border:1px solid <?php echo $c['inp_br']; ?>;background:<?php echo $c['inp_bg']; ?>;color:<?php echo $c['txt']; ?>;font-family:inherit;font-size:.9375rem;outline:none;border-radius:2px 0 0 2px">
      <button type="submit" name="lwid_signup_submit"
        style="padding:.875rem 1.25rem;background:#c9a84c;color:#0d1b2a;border:none;font-family:inherit;font-size:.875rem;font-weight:600;cursor:pointer;border-radius:0 2px 2px 0;white-space:nowrap">
        Get It Free →
      </button>
    </form>
  <?php endif;
  return ob_get_clean();
}
add_shortcode('lwid_signup', 'lwid_signup_form');

function lwid_contact_form($atts = array()) {
  $ok = get_transient('lwid_cf_success');
  $err = get_transient('lwid_cf_error');
  if ($ok) delete_transient('lwid_cf_success');
  if ($err) delete_transient('lwid_cf_error');
  $is = 'width:100%;padding:.75rem 1rem;border:1px solid rgba(0,0,0,0.15);border-radius:2px;font-family:inherit;font-size:.9375rem;color:#2c2c2c;outline:none;box-sizing:border-box';
  ob_start(); ?>
  <?php if ($ok): ?><div style="background:rgba(42,125,111,.08);border-left:4px solid #2a7d6f;padding:1rem 1.25rem;border-radius:0 4px 4px 0;color:#2a7d6f;margin-bottom:1.5rem">✓ <?php echo esc_html($ok); ?></div><?php endif; ?>
  <?php if ($err): ?><div style="background:rgba(200,50,50,.08);border-left:4px solid #c43232;padding:1rem 1.25rem;border-radius:0 4px 4px 0;color:#c43232;margin-bottom:1.5rem">✕ <?php echo esc_html($err); ?></div><?php endif; ?>
  <form method="POST" action="<?php echo esc_url(get_permalink()); ?>" style="display:flex;flex-direction:column;gap:1.125rem">
    <?php wp_nonce_field('lwid_contact','lwid_contact_nonce'); ?>
    <div style="display:grid;grid-template-columns:1fr 1fr;gap:1.125rem">
      <div><label style="display:block;font-size:.875rem;font-weight:500;color:#0d1b2a;margin-bottom:.375rem">Name *</label><input type="text" name="lwid_name" required placeholder="Your name" style="<?php echo $is; ?>"></div>
      <div><label style="display:block;font-size:.875rem;font-weight:500;color:#0d1b2a;margin-bottom:.375rem">Email *</label><input type="email" name="lwid_email" required placeholder="you@example.com" style="<?php echo $is; ?>"></div>
    </div>
    <div><label style="display:block;font-size:.875rem;font-weight:500;color:#0d1b2a;margin-bottom:.375rem">Subject</label><input type="text" name="lwid_subject" placeholder="What's this about?" style="<?php echo $is; ?>"></div>
    <div><label style="display:block;font-size:.875rem;font-weight:500;color:#0d1b2a;margin-bottom:.375rem">Message *</label><textarea name="lwid_message" required rows="6" placeholder="Tell us what's on your mind..." style="<?php echo $is; ?>;resize:vertical"></textarea></div>
    <div><button type="submit" name="lwid_contact_submit" style="background:#c9a84c;color:#0d1b2a;padding:.875rem 2rem;border:none;border-radius:2px;font-family:inherit;font-size:.9375rem;font-weight:600;cursor:pointer">Send Message →</button></div>
  </form>
  <?php return ob_get_clean();
}
add_shortcode('lwid_contact', 'lwid_contact_form');
add_shortcode('lwid_contact_form', 'lwid_contact_form');

/**
 * Reading time helper
 */
function lwid_reading_time() {
  $words = str_word_count(strip_tags(get_post_field('post_content', get_the_ID())));
  $min = max(1, ceil($words / 200));
  return $min . ' min read';
}

/**
 * MailerLite form shortcode handler (replaces plugin)
 */
add_shortcode('mailerlite_form', function($atts) {
  $atts = shortcode_atts(array('form_id' => '1'), $atts, 'mailerlite_form');
  return do_shortcode('[lwid_signup]');
});

/* ═══════════════════════════════════════════════════════════════
   AFFILIATE ENGINE — Minimal, self-contained monetization
   ═══════════════════════════════════════════════════════════════ */

// Force rewrite flush once
add_action('init', function() {
  if (get_option('lwid_rewrite_flushed') != '1') {
    flush_rewrite_rules();
    update_option('lwid_rewrite_flushed', '1');
  }
}, 99);

// 1. Database tables
function lwid_affiliate_tables() {
  global $wpdb;
  require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
  $charset = $wpdb->get_charset_collate();

  $links_sql = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}lwid_affiliate_links (
    id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
    slug varchar(64) NOT NULL,
    target_url text NOT NULL,
    tracking_id varchar(32) DEFAULT 'rodi04b-20',
    clicks bigint(20) DEFAULT 0,
    created datetime DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (id),
    UNIQUE KEY slug (slug)
  ) $charset;";

  $clicks_sql = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}lwid_clicks (
    id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
    link_id bigint(20) NOT NULL,
    clicked_at datetime DEFAULT CURRENT_TIMESTAMP,
    referrer varchar(255) DEFAULT '',
    ip varchar(64) DEFAULT '',
    user_agent varchar(255) DEFAULT '',
    PRIMARY KEY (id)
  ) $charset;";

  dbDelta($links_sql);
  dbDelta($clicks_sql);
}
add_action('after_setup_theme', 'lwid_affiliate_tables');

// 2. /go/ rewrite rules
function lwid_affiliate_rewrite() {
  add_rewrite_rule('^go/([^/]+)/?$', 'index.php?lwid_go=$matches[1]', 'top');
  add_rewrite_tag('%lwid_go%', '([^&]+)');
}
add_action('init', 'lwid_affiliate_rewrite');

// 3. /go/ redirect + click tracking
function lwid_affiliate_redirect() {
  global $wpdb;
  $slug = get_query_var('lwid_go');
  if (!$slug) return;

  $link = $wpdb->get_row($wpdb->prepare(
    "SELECT * FROM {$wpdb->prefix}lwid_affiliate_links WHERE slug = %s",
    $slug
  ));

  // Fallback hardcoded links if DB is empty
  if (!$link) {
    $fallbacks = array(
      'magnesium' => array('target_url'=>'https://www.amazon.com/s?k=magnesium+glycinate+sleep','tracking_id'=>'rodi04b-20'),
      'blue-light-glasses' => array('target_url'=>'https://www.amazon.com/s?k=blue+light+blocking+glasses+sleep','tracking_id'=>'rodi04b-20'),
      'sleep-tracker' => array('target_url'=>'https://www.amazon.com/s?k=sleep+tracker+oura','tracking_id'=>'rodi04b-20'),
      'pillow' => array('target_url'=>'https://www.amazon.com/s?k=best+pillow+for+sleep','tracking_id'=>'rodi04b-20'),
      'mattress-pad' => array('target_url'=>'https://www.amazon.com/s?k=cooling+mattress+pad','tracking_id'=>'rodi04b-20'),
      'sleep-mask' => array('target_url'=>'https://www.amazon.com/s?k=sleep+mask','tracking_id'=>'rodi04b-20'),
      'melatonin' => array('target_url'=>'https://www.amazon.com/s?k=melatonin+sleep+supplement','tracking_id'=>'rodi04b-20'),
      'blackout-curtains' => array('target_url'=>'https://www.amazon.com/s?k=blackout+curtains+sleep','tracking_id'=>'rodi04b-20'),
      'standing-desk' => array('target_url'=>'https://www.amazon.com/s?k=standing+desk+electric','tracking_id'=>'rodi04b-20'),
      'monitor' => array('target_url'=>'https://www.amazon.com/s?k=best+monitor+home+office','tracking_id'=>'rodi04b-20'),
      'headphones' => array('target_url'=>'https://www.amazon.com/s?k=noise+cancelling+headphones','tracking_id'=>'rodi04b-20'),
      'pomodoro' => array('target_url'=>'https://www.amazon.com/s?k=timer+productivity','tracking_id'=>'rodi04b-20'),
        'red-light-therapy' => array('target_url'=>'https://www.amazon.com/s?k=red+light+therapy+panel','tracking_id'=>'rodi04b-20'),
    'cold-plunge' => array('target_url'=>'https://www.amazon.com/s?k=cold+plunge+tub+ice+bath','tracking_id'=>'rodi04b-20'),
    'nootropics' => array('target_url'=>'https://www.amazon.com/s?k=nootropics+focus+memory','tracking_id'=>'rodi04b-20'),
    'cgm' => array('target_url'=>'https://www.amazon.com/s?k=continuous+glucose+monitor','tracking_id'=>'rodi04b-20'),
    'nad-supplements' => array('target_url'=>'https://www.amazon.com/s?k=nad+supplement+nmn+nr','tracking_id'=>'rodi04b-20'),
    'breathwork' => array('target_url'=>'https://www.amazon.com/s?k=breathwork+device','tracking_id'=>'rodi04b-20'),
    'sauna' => array('target_url'=>'https://www.amazon.com/s?k=infrared+sauna+home','tracking_id'=>'rodi04b-20'),
    'adaptogens' => array('target_url'=>'https://www.amazon.com/s?k=adaptogen+supplements','tracking_id'=>'rodi04b-20'),
    'fasting' => array('target_url'=>'https://www.amazon.com/s?k=intermittent+fasting+books','tracking_id'=>'rodi04b-20'),
    'hrv-monitor' => array('target_url'=>'https://www.amazon.com/s?k=hrv+heart+rate+variability+monitor','tracking_id'=>'rodi04b-20'),
);
    if (isset($fallbacks[$slug])) {
      $link = (object)$fallbacks[$slug];
    }
  }

  if ($link && !empty($link->target_url)) {
    $target = $link->target_url;
    if (strpos($target, 'tag=') === false && strpos($target, 'amazon.com') !== false) {
      $sep = (strpos($target, '?') !== false) ? '&' : '?';
      $target .= $sep . 'tag=' . esc_attr($link->tracking_id);
    }
    wp_redirect(esc_url_raw($target), 302);
    exit;
  }

  wp_redirect(home_url('/'), 302);
  exit;
}
add_action('template_redirect', 'lwid_affiliate_redirect', 1);

// Stop WordPress from guessing redirects for /go/ URLs
function lwid_disable_redirect_guess($redirect_url) {
  if (get_query_var('lwid_go')) return false;
  if (isset($_SERVER['REQUEST_URI']) && strpos($_SERVER['REQUEST_URI'], '/go/') !== false) return false;
  return $redirect_url;
}
add_filter('redirect_canonical', 'lwid_disable_redirect_guess', 1);
add_filter('do_redirect_guess_404_permalink', function($do_redirect) {
  if (isset($_SERVER['REQUEST_URI']) && strpos($_SERVER['REQUEST_URI'], '/go/') !== false) return false;
  return $do_redirect;
});

// 4. [affiliate] shortcode
function lwid_affiliate_shortcode($atts) {
  global $wpdb;
  $atts = shortcode_atts(array('id' => '', 'text' => ''), $atts, 'affiliate');

  if (empty($atts['id'])) return '';

  $link = $wpdb->get_row($wpdb->prepare(
    "SELECT * FROM {$wpdb->prefix}lwid_affiliate_links WHERE id = %d OR slug = %s",
    intval($atts['id']), sanitize_title($atts['id'])
  ));

  if (!$link) return '';

  $text = $atts['text'] ?: 'Check Price on Amazon';
  $url = home_url('/go/' . $link->slug . '/');

  return '<a href="' . esc_url($url) . '" target="_blank" rel="nofollow sponsored noopener" style="display:inline-block;background:#c9a84c;color:#0d1b2a;padding:.75rem 1.5rem;border-radius:2px;text-decoration:none;font-weight:600;font-size:.9375rem;">' . esc_html($text) . ' →</a>';
}
add_shortcode('affiliate', 'lwid_affiliate_shortcode');

// [go slug="sleep-mask" text="Check Sleep Masks on Amazon →"]
add_shortcode('go', function($atts) {
  $atts = shortcode_atts(array('slug' => '', 'text' => ''), $atts, 'go');
  if (empty($atts['slug'])) return '';
  $slug = sanitize_title($atts['slug']);
  $text = $atts['text'] ?: 'Check on Amazon →';
  $url = home_url('/go/' . $slug . '/');
  return '<a href="' . esc_url($url) . '" target="_blank" rel="nofollow sponsored noopener" style="display:inline-block;background:#c9a84c;color:#0d1b2a;padding:.75rem 1.5rem;border-radius:2px;text-decoration:none;font-weight:600;font-size:.9375rem;">' . esc_html($text) . '</a>';
});

// 5. Internal auto-linking
function lwid_internal_linking($content) {
  if (is_admin()) return $content;

  global $wpdb;
  $links = $wpdb->get_results("SELECT slug, target_url FROM {$wpdb->prefix}lwid_affiliate_links WHERE slug != ''");
  if (!$links) return $content;

  // Protect existing links
  $placeholders = array();
  $content = preg_replace_callback('/<a[^>]*>.*?<\/a>/i', function($m) use (&$placeholders) {
    $key = '___LINK' . count($placeholders) . '___';
    $placeholders[$key] = $m[0];
    return $key;
  }, $content);

  // Map slugs to keywords
  $map = array(
    'magnesium' => ['magnesium glycinate', 'magnesium supplement', 'magnesium'],
    'blue-light-glasses' => ['blue light glasses', 'blue-light glasses', 'blue light blocking'],
    'sleep-tracker' => ['sleep tracker', 'Oura Ring', 'sleep tracking'],
    'pillow' => ['pillow', 'sleep pillow'],
    'mattress-pad' => ['cooling mattress pad', 'mattress pad', 'cooling pad'],
    'sleep-mask' => ['sleep mask', 'eye mask'],
    'melatonin' => ['melatonin', 'melatonin supplement'],
    'blackout-curtains' => ['blackout curtains', 'blackout shades'],
    'standing-desk' => ['standing desk', 'stand-up desk'],
    'monitor' => ['monitor', 'home office monitor', 'productivity monitor'],
    'headphones' => ['noise cancelling headphones', 'headphones', 'ANC headphones'],
    'pomodoro' => ['Pomodoro app', 'Pomodoro timer'],
  );

  $done = array();
  foreach ($links as $link) {
    if (!isset($map[$link->slug])) continue;
    foreach ($map[$link->slug] as $kw) {
      $kw_esc = preg_quote($kw, '/');
      $pattern = '/\b' . $kw_esc . '\b/i';
      $content = preg_replace_callback($pattern, function($m) use ($link, &$done, $kw) {
        $key = $kw . '|' . $link->slug;
        if (isset($done[$key])) return $m[0];
        $done[$key] = 1;
        return '<a href="' . esc_url(home_url('/go/' . $link->slug . '/')) . '" target="_blank" rel="nofollow sponsored noopener" data-aff="1">' . $m[0] . '</a>';
      }, $content, 1);
    }
  }

  // Restore placeholders
  foreach ($placeholders as $key => $val) {
    $content = str_replace($key, $val, $content);
  }

  return $content;
}
add_filter('the_content', 'lwid_internal_linking', 15);

// 6. Helper: create default links (idempotent — fills in missing ones)
function lwid_seed_links() {
  global $wpdb;
  $table = $wpdb->prefix . 'lwid_affiliate_links';

  // Ensure table exists
  lwid_affiliate_tables();

  $links = array(
    array('slug'=>'magnesium','target_url'=>'https://www.amazon.com/s?k=magnesium+glycinate+sleep'),
    array('slug'=>'blue-light-glasses','target_url'=>'https://www.amazon.com/s?k=blue+light+blocking+glasses+sleep'),
    array('slug'=>'sleep-tracker','target_url'=>'https://www.amazon.com/s?k=sleep+tracker+oura'),
    array('slug'=>'pillow','target_url'=>'https://www.amazon.com/s?k=best+pillow+for+sleep'),
    array('slug'=>'mattress-pad','target_url'=>'https://www.amazon.com/s?k=cooling+mattress+pad'),
    array('slug'=>'sleep-mask','target_url'=>'https://www.amazon.com/s?k=sleep+mask'),
    array('slug'=>'melatonin','target_url'=>'https://www.amazon.com/s?k=melatonin+sleep+supplement'),
    array('slug'=>'blackout-curtains','target_url'=>'https://www.amazon.com/s?k=blackout+curtains+sleep'),
    array('slug'=>'standing-desk','target_url'=>'https://www.amazon.com/s?k=standing+desk+electric'),
    array('slug'=>'monitor','target_url'=>'https://www.amazon.com/s?k=best+monitor+home+office'),
    array('slug'=>'headphones','target_url'=>'https://www.amazon.com/s?k=noise+cancelling+headphones'),
    array('slug'=>'pomodoro','target_url'=>'https://www.amazon.com/s?k=timer+productivity'),
  );

  foreach ($links as $link) {
    $exists = $wpdb->get_var($wpdb->prepare("SELECT id FROM $table WHERE slug = %s", $link['slug']));
    if (!$exists) {
      $result = $wpdb->insert($table, array(
        'slug' => $link['slug'],
        'target_url' => $link['target_url'],
        'tracking_id' => 'rodi04b-20',
      ));
      if ($result === false) {
        error_log('LWID affiliate seed failed for ' . $link['slug'] . ': ' . $wpdb->last_error);
      }
    }
  }
  
  // Force rewrite flush
  delete_option('lwid_rewrite_flushed');
}
add_action('init', 'lwid_seed_links', 5);

/* ═══════════════════════════════════════════════════════════════
   END AFFILIATE ENGINE
   ═══════════════════════════════════════════════════════════════ */

/**
 * Post CTA boxes — product-specific Amazon affiliate buttons
 */
function lwid_post_cta_box($content) {
  if (!is_single() || is_admin()) return $content;

  $slug = get_post_field('post_name', get_the_ID());
  $ctas = array(
    'best-blue-light-glasses-sleep' => array('slug'=>'blue-light-glasses','title'=>'Best Blue Light Glasses for Sleep','desc'=>'Block harmful blue light and protect your melatonin production. These are the top-rated options for better sleep.'),
    'magnesium-glycinate-vs-l-threonate-sleep' => array('slug'=>'magnesium','title'=>'Best Magnesium for Sleep','desc'=>'The right magnesium form makes a difference. These are the most effective sleep supplements based on research.'),
    'best-magnesium-for-sleep' => array('slug'=>'magnesium','title'=>'Best Magnesium Supplements for Sleep','desc'=>'Clinically studied forms that actually improve sleep quality and reduce nighttime waking.'),
    'best-sleep-tracker-2025' => array('slug'=>'sleep-tracker','title'=>'Best Sleep Trackers','desc'=>'Accurate sleep monitoring to understand your sleep architecture and optimize recovery.'),
    'best-pillow-for-sleep-2025' => array('slug'=>'pillow','title'=>'Best Pillows for Sleep','desc'=>'The right pillow alignment reduces neck pain and improves breathing during sleep.'),
    'best-cooling-mattress-pad-hot-sleepers' => array('slug'=>'mattress-pad','title'=>'Best Cooling Mattress Pads','desc'=>'Temperature-regulating pads that prevent overheating and night sweats.'),
    'best-sleep-mask-2025' => array('slug'=>'sleep-mask','title'=>'Best Sleep Masks','desc'=>'Complete blackout for maximum melatonin production — especially useful for travel and shift work.'),
    'best-melatonin-supplement-2025' => array('slug'=>'melatonin','title'=>'Best Melatonin Supplements','desc'=>'Properly dosed, pharmaceutical-grade melatonin for circadian rhythm support.'),
    'best-blackout-curtains-sleep-2025' => array('slug'=>'blackout-curtains','title'=>'Best Blackout Curtains','desc'=>'True blackout curtains that eliminate light pollution and support natural melatonin cycles.'),
    'best-white-noise-machine-sleep-2025' => array('slug'=>'headphones','title'=>'Best Sleep Sound Solutions','desc'=>'White noise machines and sleep headphones that mask environmental noise.'),
        'best-red-light-therapy-devices-2026' => array('slug'=>'red-light-therapy','title'=>'Best Red Light Therapy Devices','desc'=>'Clinical-grade panels with accurate 660/850nm wavelengths. The best devices for sleep, recovery, and skin health.'),
    'cold-plunge-benefits-science' => array('slug'=>'cold-plunge','title'=>'Best Cold Plunge Tubs','desc'=>'Ice bath setups for inflammation reduction, dopamine boosting, and deeper sleep. From stock tanks to chest freezer conversions.'),
    'best-nootropics-focus-memory-2026' => array('slug'=>'nootropics','title'=>'Best Nootropics for Focus','desc'=>'Cognitive enhancers that actually improve working memory and verbal fluency. Tested with dual n-back protocols.'),
    'cgm-continuous-glucose-monitor-non-diabetics' => array('slug'=>'cgm','title'=>'Best Continuous Glucose Monitors','desc'=>'Wearable glucose tracking for metabolic optimization, even without diabetes. Real-time feedback on food and sleep.'),
    'nad-supplements-nmn-nr-longevity' => array('slug'=>'nad-supplements','title'=>'Best NAD+ Supplements','desc'=>'NMN and NR supplements for cellular energy, longevity, and DNA repair. What the research actually shows.'),
    'breathwork-techniques-performance-science' => array('slug'=>'breathwork','title'=>'Best Breathwork Devices','desc'=>'Tools for controlled breathing exercises that lower cortisol, improve HRV, and deepen sleep.'),
    'best-home-sauna-infrared-vs-traditional-2026' => array('slug'=>'sauna','title'=>'Best Home Infrared Saunas','desc'=>'Compact infrared cabins for detox, cardiovascular health, and heat shock protein activation.'),
    'best-adaptogens-stress-performance-2026' => array('slug'=>'adaptogens','title'=>'Best Adaptogen Supplements','desc'=>'Ashwagandha, rhodiola, and holy basil for cortisol management, stress resilience, and balanced energy.'),
    'intermittent-fasting-biohacking-science' => array('slug'=>'fasting','title'=>'Best Intermittent Fasting Tools','desc'=>'Apps, timers, and books for structured fasting protocols that boost autophagy and metabolic flexibility.'),
    'hrv-training-heart-rate-variability-guide' => array('slug'=>'hrv-monitor','title'=>'Best HRV Monitors','desc'=>'Heart rate variability wearables for nervous system training, stress tracking, and recovery optimization.'),
'best-standing-desk-2026' => array('slug'=>'standing-desk','title'=>'Best Standing Desks','desc'=>'Electric standing desks with dual motors, memory presets, and solid build quality.'),
    'best-monitor-home-office-productivity-2026' => array('slug'=>'monitor','title'=>'Best Monitors for Productivity','desc'=>'4K and ultrawide monitors that reduce eye strain and increase screen real estate.'),
    'best-noise-cancelling-headphones-focus-2026' => array('slug'=>'headphones','title'=>'Best Noise Cancelling Headphones','desc'=>'ANC headphones that eliminate distractions for deep work and concentration.'),
    'best-pomodoro-apps-timers' => array('slug'=>'pomodoro','title'=>'Best Pomodoro Timers','desc'=>'Physical and digital timers that enforce the 25-minute focused work cycle.'),
    'best-ergonomic-chair-home-office-2026' => array('slug'=>'standing-desk','title'=>'Best Ergonomic Office Chairs','desc'=>'Chairs with proper lumbar support, adjustable armrests, and breathable mesh.'),
    'time-blocking-apps-methods' => array('slug'=>'pomodoro','title'=>'Best Time Blocking Tools','desc'=>'Planners and apps for scheduling every hour of your workday effectively.'),
  );

  if (!isset($ctas[$slug])) return $content;

  $cta = $ctas[$slug];
  $url = home_url('/go/' . $cta['slug'] . '/');

  $box = '<div style="margin:2rem 0;padding:1.5rem;background:#f8f6f0;border:1px solid rgba(0,0,0,0.08);border-radius:4px;">';
  $box .= '<h3 style="margin:0 0 0.5rem;font-size:1.15rem;color:#0d1b2a;">' . esc_html($cta['title']) . '</h3>';
  $box .= '<p style="margin:0 0 1rem;color:rgba(0,0,0,0.55);font-size:0.9rem;line-height:1.5;">' . esc_html($cta['desc']) . '</p>';
  $box .= '<a href="' . esc_url($url) . '" target="_blank" rel="nofollow sponsored noopener" style="display:inline-block;background:#c9a84c;color:#0d1b2a;padding:0.75rem 1.5rem;border-radius:2px;text-decoration:none;font-weight:600;font-size:0.9375rem;">View on Amazon →</a>';
  $box .= '</div>';

  return $content . $box;
}
add_filter('the_content', 'lwid_post_cta_box', 20);


/**
 * Category card click fix — makes cards and "Read more" links clickable
 */
add_action('wp_footer', function() {
  if (!is_category() && !is_archive() && !is_home()) return;
  ?>
  <script id="lwid-card-click-fix">
  (function() {
    document.querySelectorAll('.lwid-card').forEach(function(card) {
      var link = card.querySelector('a[href]');
      if (!link) return;
      var url = link.href;

      // Make entire card clickable
      card.style.cursor = 'pointer';
      card.addEventListener('click', function(e) {
        if (e.target.closest('a') || e.target.closest('button')) return;
        window.location.href = url;
      });

      // Fix "Read more →" — wrap in actual <a> tag
      var cta = card.querySelector('.lwid-card-cta');
      if (cta && cta.tagName !== 'A') {
        var a = document.createElement('a');
        a.href = url;
        a.className = cta.className;
        a.style.cssText = 'font-size:.8125rem;font-weight:500;color:var(--gold);letter-spacing:.04em;text-decoration:none;display:inline-block;cursor:pointer;';
        a.innerHTML = cta.innerHTML;
        a.onmouseover = function() { this.style.textDecoration = 'underline'; };
        a.onmouseout = function() { this.style.textDecoration = 'none'; };
        cta.parentNode.replaceChild(a, cta);
      }
      
      // Also fix plain-text "Read more" spans without the class
      card.querySelectorAll('span, div, p, em, strong').forEach(function(el) {
        var text = el.textContent.trim();
        if (/Read\s*more/i.test(text)) {
          if (el.tagName === 'A') return;
          var a2 = document.createElement('a');
          a2.href = url;
          a2.className = 'lwid-card-cta';
          a2.style.cssText = 'font-size:.8125rem;font-weight:500;color:var(--gold);letter-spacing:.04em;text-decoration:none;display:inline-block;cursor:pointer;';
          a2.innerHTML = el.innerHTML;
          a2.onmouseover = function() { this.style.textDecoration = 'underline'; };
          a2.onmouseout = function() { this.style.textDecoration = 'none'; };
          el.parentNode.replaceChild(a2, el);
        }
      });
      
      // Fix "Read more →" — find by text content and wrap in <a>
      card.querySelectorAll('span, div, p, em, strong').forEach(function(el) {
        if (el.textContent.trim() === 'Read more →' || el.textContent.includes('Read more →')) {
          if (el.tagName === 'A') return;
          var a = document.createElement('a');
          a.href = url;
          a.className = 'lwid-card-cta';
          a.style.cssText = 'font-size:.8125rem;font-weight:500;color:var(--gold);letter-spacing:.04em;text-decoration:none;display:inline-block;cursor:pointer;';
          a.innerHTML = el.innerHTML;
          a.onmouseover = function() { this.style.textDecoration = 'underline'; };
          a.onmouseout = function() { this.style.textDecoration = 'none'; };
          el.parentNode.replaceChild(a, el);
        }
      });
    });
  })();
  </script>
  <?php
}, 100);

add_action('wp_head', function() {
  if (!is_category() && !is_archive() && !is_home()) return;
  echo '<style>.lwid-card{cursor:pointer}.lwid-card a[href]{text-decoration:none;color:inherit}.lwid-card-cta,.lwid-card span{font-size:.8125rem;font-weight:500;color:var(--gold);letter-spacing:.04em}.lwid-card-cta:hover,.lwid-card span:hover{text-decoration:underline;cursor:pointer}</style>';
}, 100);

/**
 * Category card click fix — CSS + JS (no regex, works with invalid nested HTML)
 */
add_action('wp_head', function() {
  if (!is_category() && !is_archive() && !is_home()) return;
  echo '<style id="lwid-card-fix">
  .lwid-card { display:block; cursor:pointer; text-decoration:none; color:inherit; }
  .lwid-card-cta, .lwid-card span, .lwid-card div { pointer-events:none; }
  .lwid-card a { pointer-events:auto; }
  .lwid-card:hover .lwid-card-title { color:var(--gold); }
  </style>';
}, 1);

add_action('wp_footer', function() {
  if (!is_category() && !is_archive() && !is_home()) return;
  ?>
  <script id="lwid-card-click">
  (function() {
    // Find all card containers (the parent wrapper, not just .lwid-card)
    document.querySelectorAll('.lwid-arch-grid > *').forEach(function(cardWrapper) {
      // Find the main post link inside this card
      var mainLink = cardWrapper.querySelector('a.lwid-card[href]');
      if (!mainLink) {
        // Fallback: find any link with the post URL pattern
        var allLinks = cardWrapper.querySelectorAll('a[href]');
        for (var i = 0; i < allLinks.length; i++) {
          var href = allLinks[i].getAttribute('href');
          if (href && href.indexOf('/20') > 0 && href.indexOf('category') === -1 && href.indexOf('tag') === -1) {
            mainLink = allLinks[i];
            break;
          }
        }
      }
      if (!mainLink) return;

      var postUrl = mainLink.getAttribute('href');

      // Make the entire wrapper clickable
      cardWrapper.style.cursor = 'pointer';
      cardWrapper.addEventListener('click', function(e) {
        // If clicking an actual link or button, let it work normally
        if (e.target.closest('a') || e.target.closest('button')) return;
        window.location.href = postUrl;
      });

      // Find and fix "Read more" text
      var readmore = cardWrapper.querySelector('.lwid-card-cta');
      if (readmore && readmore.tagName !== 'A') {
        readmore.style.pointerEvents = 'none';
      }

      // Wrap plain "Read more" text in an <a> if it's not already
      cardWrapper.querySelectorAll('span, div, p').forEach(function(el) {
        if (el.textContent && el.textContent.indexOf('Read more') > -1) {
          if (el.tagName === 'A') return;
          var a = document.createElement('a');
          a.href = postUrl;
          a.className = 'lwid-card-cta';
          a.style.cssText = 'font-size:.8125rem;font-weight:500;color:var(--gold);letter-spacing:.04em;text-decoration:none;display:inline-block;cursor:pointer;';
          a.innerHTML = el.innerHTML;
          el.parentNode.replaceChild(a, el);
        }
      });
    });
  })();
  </script>
  <?php
}, 100);


/**
 * VigLink — Automatic affiliate link monetization
 */
add_action('wp_footer', function() {
  ?>
  <script type="text/javascript">
    var vglnk = {key: '68659f7564d229c3ce6d890e3b582d7a'};
    (function(d, t) {
      var s = d.createElement(t);
      s.type = 'text/javascript'; s.async = true;
      s.src = '//cdn.viglink.com/api/vglnk.js';
      var r = d.getElementsByTagName(t)[0];
      r.parentNode.insertBefore(s, r);
    }(document, 'script'));
  </script>
  <?php
}, 999);

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<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
	<sitemap>
		<loc>https://lookwhatidig.com/post-sitemap.xml</loc>
		<lastmod>2026-04-11T15:33:21+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://lookwhatidig.com/page-sitemap.xml</loc>
		<lastmod>2026-03-24T22:47:24+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://lookwhatidig.com/category-sitemap.xml</loc>
		<lastmod>2026-04-11T15:33:21+00:00</lastmod>
	</sitemap>
</sitemapindex>
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