// Existing code ke neeche yeh naya code jodna hai
// ----------------------------------------------------------------------

// 3. Product ke liye Custom Meta Boxes banana
function product_meta_box() {
    add_meta_box(
        'product_details',          // Meta box ID
        'Product Details',          // Title
        'display_product_meta_box', // Callback function to display the fields
        'product',                  // Custom post type (product CPT)
        'normal',                   // Context
        'default'                   // Priority
    );
}
add_action( 'add_meta_boxes', 'product_meta_box' );

// Meta Box ke andar fields display karna
function display_product_meta_box( $post ) {
    // Security nonces ka istemal karein
    wp_nonce_field( basename( __FILE__ ), 'product_meta_box_nonce' );

    $product_price = get_post_meta( $post->ID, '_product_price', true );
    $product_stock = get_post_meta( $post->ID, '_product_stock', true );
    
    // HTML form fields
    ?>
    <p>
        <label for="product_price">Price (in INR):</label>
        <input type="number" step="0.01" id="product_price" name="product_price" value="" size="25" />
    </p>
    <p>
        <label for="product_stock">Stock Quantity:</label>
        <input type="number" id="product_stock" name="product_stock" value="" size="25" />
    </p>