// ===== CW: Fix blog post title tags (remove trailing separator, add site name) =====
// Titles were "Post Title -" — separator showing without site name after it.
// Root cause: Yoast title template for posts has %%sep%% %%sitename%% but sitename
// in wpseo_titles was empty. Fix: set it + remove stray trailing separator via filter.
add_action( 'init', function () {
    if ( get_transient( 'cw_insights_title_fix_v1' ) ) return;
    $opt = get_option( 'wpseo_titles', array() );
    // Ensure site name is set
    if ( empty( $opt['website_name'] ) ) {
        $opt['website_name'] = 'Codewave';
    }
    // Ensure post title template includes site name
    if ( empty( $opt['title-post'] ) || strpos( $opt['title-post'], '%%sitename%%' ) === false ) {
        $opt['title-post'] = '%%title%% %%sep%% %%sitename%%';
    }
    update_option( 'wpseo_titles', $opt );
    set_transient( 'cw_insights_title_fix_v1', 1, 0 );
} );

// Belt-and-suspenders: strip any trailing " -" or " | " left by missing variable
add_filter( 'wpseo_title', function ( $title ) {
    return preg_replace( '/s*[-|]+s*$/', '', $title );
} );
// ===== END CW: Fix blog post title tags =====

// ===== CW: Temp - diagnose Yoast title settings =====
add_action( 'wp_ajax_cw_insights_title_diag', function () {
    $opt = get_option( 'wpseo_titles', array() );
    $blog_name = get_bloginfo( 'name' );
    $transient = get_transient( 'cw_insights_title_fix_v1' );
    wp_send_json_success( array(
        'website_name'    => $opt['website_name'] ?? '(not set)',
        'title-post'      => $opt['title-post'] ?? '(not set)',
        'blog_name'       => $blog_name,
        'transient_set'   => $transient ? true : false,
        'separator'       => $opt['separator'] ?? '(not set)',
    ) );
} );
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