Description

The plugin currently builds AdyenCheckout library object as much as the number of the payment methods enabled on the checkout and mounts all of the payment components at the same time after rendering the checkout.

This results in delays on the checkout since AdyenCheckout library makes multiple calls to checkoutshopper endpoints after instantiation for collecting data for risk calculation. This causes a drastic performance degradation on the checkout page.

Ideally, AdyenCheckout library object should be instantiated after a shopper selects an Adyen payment method. This PR introduces a refactoring which changes the logic of instantiating the AdyenCheckout library and mount payment method components.

Tested scenarios

• Rendering checkout and selecting a payment method triggers single call to checkoutshopper
• Pre-selected payment method triggers single call to checkoutshopper
• checkoutshopper endpoint is not called if no Adyen payment method is selected

Fixes #2766
Fixes #2581