WooCommerce Login link action

wc-login.php

<?php
function cs_login_link() {
  // Bail early if we don't have WC.
  if ( !function_exists('wc_get_cart_url') ) return;

  $myaccount_page_id = get_option( 'woocommerce_myaccount_page_id' );
  $myaccount_page_url = $myaccount_page_id ? get_permalink( $myaccount_page_id ) : NULL;

  if ( !$myaccount_page_url ) return;

  echo '<a href="' . $myaccount_page_url . '">' . ( is_user_logged_in() ? 'Account' : 'Login' ) . '</a>';
}