#105 - Checkout After Login v0.1

<!-- 💙 MEMBERSCRIPT #105 v0.1 💙 CHECKOUT AFTER LOGIN -->
<script>
  /* Checks if the current URL matches the configured redirect URL, or if no specific URL is required */
  function isCorrectPage() {
    return redirectOnLoginURL === '' || window.location.pathname === redirectOnLoginURL;
  }

  /* Checks if Memberstack is fully loaded before running any Memberstack-specific code.*/
  function memberstackReady(callback) {
    function checkAndExecute() {
      if (window.$memberstackDom) {
        callback(); // Memberstack is ready, run the callback function.
      } else {
        setTimeout(checkAndExecute, 100); // Wait for 100ms and check again.
      }
    }

    checkAndExecute(); // Start checking if Memberstack is ready.
  }

  /* Initiates the Stripe checkout process with a specified price ID.*/
  async function initiateCheckout(priceId) {
    try {
      // Set a flag in session storage to indicate that the checkout page was accessed.
      sessionStorage.setItem('ms_checkout_viewed', 'true');
      await window.$memberstackDom.purchasePlansWithCheckout({
        priceId, // The price ID for the product being purchased.
        returnUrl: window.location.href, // Redirect the user back here after completing the checkout.
      });
    } catch (error) {
      console.error('Failed to initiate payment:', error); // Provide error details in the console.
    }
  }

  /* Main execution flow that starts once Memberstack is confirmed to be ready */
  memberstackReady(() => {
    window.$memberstackDom.getCurrentMember().then(({ data: member }) => {
      if (member && sessionStorage.getItem('ms_price') && !sessionStorage.getItem('ms_checkout_viewed')) {
        initiateCheckout(sessionStorage.getItem('ms_price')); // Start the checkout process if conditions are met.
      }
    }).catch(error => {
      console.error('Failed to retrieve user data:', error); // Log an error if fetching member data fails.
    });
  });
</script>