/**
* Plugin Name: Auto SEO Meta
* Description: Автогенерация SEO meta через Groq API. Multi-geo.
* Version: 1.0
*/
if (!defined('ABSPATH')) exit;
if (!defined('AUTO_SEO_GROQ_KEY')) define('AUTO_SEO_GROQ_KEY', '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');
if (!defined('AUTO_SEO_MODEL')) define('AUTO_SEO_MODEL', 'llama-3.3-70b-versatile');
if (!defined('AUTO_SEO_PLUGIN')) define('AUTO_SEO_PLUGIN', 'yoast');
if (!defined('AUTO_SEO_LANG')) define('AUTO_SEO_LANG', 'English');
if (!function_exists('auto_seo_meta_keys')) {
add_action('save_post', 'auto_seo_on_save', 20, 3);
function auto_seo_meta_keys() {
$map = [
'rankmath' => ['title' => 'rank_math_title', 'desc' => 'rank_math_description'],
'yoast' => ['title' => '_yoast_wpseo_title', 'desc' => '_yoast_wpseo_metadesc'],
'seopress' => ['title' => '_seopress_titles_title', 'desc' => '_seopress_titles_desc'],
'aioseo' => ['title' => '_aioseo_title', 'desc' => '_aioseo_description'],
];
return $map[AUTO_SEO_PLUGIN] ?? $map['rankmath'];
}
function auto_seo_on_save($post_id, $post, $update) {
if (wp_is_post_revision($post_id) || wp_is_post_autosave($post_id)) return;
if ($post->post_status !== 'publish') return;
if (!in_array($post->post_type, ['post', 'page'])) return;
$keys = auto_seo_meta_keys();
$existing_t = get_post_meta($post_id, $keys['title'], true);
$existing_d = get_post_meta($post_id, $keys['desc'], true);
if (!empty($existing_t) && !empty($existing_d)) return;
$seo = auto_seo_generate($post);
if (!$seo) return;
if (empty($existing_t)) update_post_meta($post_id, $keys['title'], $seo['title']);
if (empty($existing_d)) update_post_meta($post_id, $keys['desc'], $seo['description']);
}
function auto_seo_generate($post) {
$title = $post->post_title;
$content = wp_strip_all_tags($post->post_content);
$content = mb_substr($content, 0, 3000);
if (empty($content) && empty($title)) return false;
$site_name = get_bloginfo('name');
$site_desc = get_bloginfo('description');
$domain = parse_url(home_url(), PHP_URL_HOST);
$lang = AUTO_SEO_LANG;
$prompt = "You are an SEO expert. Generate SEO meta title (max 60 chars) and description (max 155 chars) for this webpage.\n\n";
$prompt .= "Output language: {$lang}\n";
$prompt .= "Site: {$site_name} ({$domain})\n";
if ($site_desc) $prompt .= "Site tagline: {$site_desc}\n";
$prompt .= "\nPage title: {$title}\n\n";
$prompt .= "Content:\n{$content}\n\n";
$prompt .= "Rules:\n- Title max 60 chars, includes main keyword\n- Description max 155 chars, compelling\n- Output in {$lang} only\n- No quotes\n- Output ONLY valid JSON:\n";
$prompt .= '{"title":"...","description":"..."}';
$response = wp_remote_post('https://api.groq.com/openai/v1/chat/completions', [
'timeout' => 30,
'headers' => [
'Content-Type' => 'application/json',
'Authorization' => 'Bearer ' . AUTO_SEO_GROQ_KEY,
],
'body' => json_encode([
'model' => AUTO_SEO_MODEL,
'messages' => [['role' => 'user', 'content' => $prompt]],
'temperature' => 0.7,
'max_tokens' => 300,
'response_format' => ['type' => 'json_object'],
])
]);
if (is_wp_error($response)) {
error_log('Auto SEO error: ' . $response->get_error_message());
return false;
}
$code = wp_remote_retrieve_response_code($response);
$body = json_decode(wp_remote_retrieve_body($response), true);
if ($code !== 200) {
error_log('Auto SEO HTTP ' . $code . ': ' . wp_remote_retrieve_body($response));
return false;
}
$text = $body['choices'][0]['message']['content'] ?? '';
if (empty($text)) return false;
$text = preg_replace('/^```json\s*|\s*```$/m', '', trim($text));
$seo = json_decode($text, true);
if (!isset($seo['title']) || !isset($seo['description'])) return false;
return [
'title' => mb_substr($seo['title'], 0, 60),
'description' => mb_substr($seo['description'], 0, 155),
];
}
add_action('add_meta_boxes', function() {
add_meta_box('auto_seo', 'Auto SEO', 'auto_seo_metabox', ['post', 'page'], 'side');
});
function auto_seo_metabox($post) {
$keys = auto_seo_meta_keys();
$t = get_post_meta($post->ID, $keys['title'], true);
$d = get_post_meta($post->ID, $keys['desc'], true);
echo 'Title:
' . esc_html($t ?: '—') . '
';
echo 'Description:
' . esc_html($d ?: '—') . '
';
$url = wp_nonce_url(admin_url('admin-post.php?action=auto_seo_regen&post_id=' . $post->ID), 'auto_seo_' . $post->ID);
echo 'Regenerate
';
}
add_action('admin_post_auto_seo_regen', function() {
$post_id = intval($_GET['post_id'] ?? 0);
if (!current_user_can('edit_post', $post_id)) wp_die('No permission');
check_admin_referer('auto_seo_' . $post_id);
$keys = auto_seo_meta_keys();
delete_post_meta($post_id, $keys['title']);
delete_post_meta($post_id, $keys['desc']);
auto_seo_on_save($post_id, get_post($post_id), true);
wp_redirect(get_edit_post_link($post_id, 'raw'));
exit;
});
} // end function_exists guard
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