/**
* Manage WooCommerce styles and scripts.
*/
function grd_woocommerce_script_cleaner() {

// Remove the generator tag
remove_action( 'wp_head', array( $GLOBALS['woocommerce'], 'generator' ) );
// Unless we're in the store, remove all the cruft!
if ( ! is_woocommerce() && ! is_cart() && ! is_checkout() ) {
wp_dequeue_style( 'woocommerce_frontend_styles' );
wp_dequeue_style( 'woocommerce-general');
wp_dequeue_style( 'woocommerce-layout' );
wp_dequeue_style( 'woocommerce-smallscreen' );
wp_dequeue_style( 'woocommerce_fancybox_styles' );
wp_dequeue_style( 'woocommerce_chosen_styles' );
wp_dequeue_style( 'woocommerce_prettyPhoto_css' );
wp_dequeue_script( 'selectWoo' );
wp_deregister_script( 'selectWoo' );
wp_dequeue_script( 'wc-add-payment-method' );
wp_dequeue_script( 'wc-lost-password' );
wp_dequeue_script( 'wc_price_slider' );
wp_dequeue_script( 'wc-single-product' );
wp_dequeue_script( 'wc-add-to-cart' );
wp_dequeue_script( 'wc-cart-fragments' );
wp_dequeue_script( 'wc-credit-card-form' );
wp_dequeue_script( 'wc-checkout' );
wp_dequeue_script( 'wc-add-to-cart-variation' );
wp_dequeue_script( 'wc-single-product' );
wp_dequeue_script( 'wc-cart' );
wp_dequeue_script( 'wc-chosen' );
wp_dequeue_script( 'woocommerce' );
wp_dequeue_script( 'prettyPhoto' );
wp_dequeue_script( 'prettyPhoto-init' );
wp_dequeue_script( 'jquery-blockui' );
wp_dequeue_script( 'jquery-placeholder' );
wp_dequeue_script( 'jquery-payment' );
wp_dequeue_script( 'fancybox' );
wp_dequeue_script( 'jqueryui' );
}
}
add_action( 'wp_enqueue_scripts', 'grd_woocommerce_script_cleaner', 99 );

/**
* Đổi sale thành % giảm giá.
*/
add_filter('woocommerce_sale_flash','devvn_woocommerce_sale_flash', 10, 3);
function devvn_woocommerce_sale_flash($text, $post, $product){
ob_start();
$sale_price = get_post_meta( $product->get_id(), '_price', true);
$regular_price = get_post_meta( $product->get_id(), '_regular_price', true);
if (empty($regular_price) && $product->is_type( 'variable' )){
$available_variations = $product->get_available_variations();
$variation_id = $available_variations[0]['variation_id'];
$variation = new WC_Product_Variation( $variation_id );
$regular_price = $variation ->regular_price;
$sale_price = $variation ->sale_price;
}
$sale = ceil(( ($regular_price - $sale_price) / $regular_price ) * 100);
if ( !empty( $regular_price ) && !empty( $sale_price ) && $regular_price > $sale_price ) :
$R = floor((255*$sale)/100);
$G = floor((255*(100-$sale))/100);
$bg_style = 'background:none;border: 1px solid #d42333;margin: 5px 5px 0px 0px !important;font-weight: 500 !importan';
echo apply_filters( 'devvn_woocommerce_sale_flash', '<span class="onsale" style="'. $bg_style .'">-' . $sale . '%</span>', $post, $product );
endif;
return ob_get_clean();
}