Woocommerce – If variation product then execute condition else if simple then execute other condition

function wooprice(){
    global $product;
    // 1 Get product varations
    $product_variations = $product->get_available_variations();

    // 2 Get one variation id of a product
    $variation_product_id = $product_variations [0]['variation_id'];

    // 3 Create the product object
    $variation_product = new WC_Product_Variation( $variation_product_id );

    if ($product->is_type( 'variable' )) :
          if( $variation_product ->sale_price !=0 ) :
            echo $variation_product ->sale_price;

          else :
            echo $variation_product ->regular_price;
          endif;

    else :
      echo wc_price($product->get_price());
    endif;

}

I am using this function in price.php in my theme.

This works well if the products are variable products, but fails when the product is simple.

It throws a fatal error if the product is simple:

Fatal error: Uncaught Error: Call to undefined method WC_Product_Simple::get_available_variations() in /home3/

I think this needs to be corrected:

else :
 echo wc_price($product->get_price());