const bentoLoadScript = (src, id) => {
  return new Promise((resolve, reject) => {
    const existingScript = document.getElementById(id);
    if (existingScript) {
      resolve();
    } else {
      const script = document.createElement('script');
      script.type = 'text/javascript';
      script.onload = resolve;
      script.onerror = reject;
      script.id = id;
      script.src = src;
      document.body.appendChild(script);
    }
  });
};

bentoLoadScript(
  'https://app.bentonow.com/null.js',
  'bento-full-script-js'
)
  .then(() => {
    /* Helpers */
    const debounce = (func, delay) => {
      let inDebounce;
      return function () {
        const context = this;
        const args = arguments;
        clearTimeout(inDebounce);
        inDebounce = setTimeout(() => func.apply(context, args), delay);
      };
    };

    const getCartHashKey = function () {
      if (typeof wc_cart_fragments_params !== 'undefined') {
        const cart_hash_key = wc_cart_fragments_params.cart_hash_key;

        try {
          const localStorageItem = localStorage.getItem(cart_hash_key);
          const sessionStorageItem = sessionStorage.getItem(cart_hash_key);

          if (localStorageItem) {
            return localStorageItem;
          }

          if (sessionStorageItem) {
            return sessionStorageItem;
          }

          return null;
        } catch (e) {}
      }
    };

    const isCartEmpty = function () {
      return (
        getCartHashKey() === null &&
        bento_wordpress_sdk_params.woocommerce_cart_count === '0'
      );
    };

    /* Identify current user */

    const isValidEmail = function (email) {
      if (typeof email === 'string') {
        return /[^\s@]+@[^\s@]+\.[^\s@]+/.test(email);
      }

      return false;
    };

    const identifyUser = function () {
      const billing_email = bento$('#billing_email').val();
      const email = isValidEmail(billing_email) ? billing_email : null;

      if (typeof email === 'string') {
        bento.identify(email);
      } else {
        if (bento_wordpress_sdk_params.user_logged_in) {
          bento.identify(bento_wordpress_sdk_params.user_email);
        }
      }
    };

    const onEmailInputChange = debounce(function () {
      identifyUser();
    }, 500);

    /* Bento events */

    const sendBentoEventWithCart = debounce(function (eventName) {
      identifyUser();

      const data = {
        action: 'bento_get_cart_items',
      };

      bento$.get(
        bento_wordpress_sdk_params.ajax_url,
        data,
        function (response) {
          bento.track(eventName, { cart: { items: JSON.parse(response) } });
        }
      );
    }, 500);

    (function ($) {
      if (typeof bento$ != 'undefined') {
        bento$(function () {
          try {
            let cartIsEmpty = isCartEmpty();

            if (bento_wordpress_sdk_params.woocommerce_enabled) {
              bento$(document.body).on('added_to_cart', () => {
                if (cartIsEmpty) {
                  cartIsEmpty = false;
                  sendBentoEventWithCart('$woocommerceCartCreated');
                } else {
                  sendBentoEventWithCart('$woocommerceCartUpdated');
                }
              });

              bento$(document.body).on(
                'updated_cart_totals removed_from_cart',
                () => {
                  sendBentoEventWithCart('$woocommerceCartUpdated');
                }
              );

              if ($('form.woocommerce-checkout').length > 0) {
                sendBentoEventWithCart('$woocommerceStartedCheckout');
              }

              /**
               * Watch for email input changes.
               */
              bento$('#billing_email').bind('blur', onEmailInputChange);
            }
          } catch (err) {
            // console.log('🍱 WordPress + Bento Activated');
          }

          bento.view();
        });
      }
    })(jQuery);
  })
  .catch(() => console.error('Bento loading failed, please contact support.'));