Customer reschedules keep the booking length

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Reschedules keep the booking length

• The new slot must cover the same number of billed units as the current one. For a custom-duration product priced per hour, a 2-hour booking can move to any other free 2-hour slot, but not to 3 hours. A different length returns 400 (“The new time must be the same length as the current booking …”).
• The appointment’s product can’t change. A slot.productId that isn’t the appointment’s own product is ignored, and the slot is checked against the appointment’s product.

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What to change

import { Products } from '@opencals/storefront-sdk';

const seconds = (new Date(appointment.to).getTime() - new Date(appointment.from).getTime()) / 1000;

const { data: slots } = await Products.getCurrentAvailabilities({
  path: { productId: appointment.productId },
  query: { date, duration: String(seconds), excludeAppointmentId: appointment.id },
});