import type { Appointment } from 'fhir/r4';

/**
 * IS OPENING THIS APPOINTMENT A PLACEMENT RATHER THAN AN EDIT?
 *
 * A request-only practice on the "preferred days & times" variant takes requests that name no
 * practitioner: the patient gives a reason and their general availability, and the PRACTICE decides
 * who they see and when. Everything that opens such a request is doing a different job from editing a
 * booking that already has a practitioner and a time.
 *
 * SHARED BECAUSE THREE SURFACES HAVE TO AGREE ABOUT IT. The booking form titles itself from this, and
 * the two dialogs that host it name themselves from it for a screen reader. Answering it in three
 * places is how a dialog comes to be announced as "Edit Appointment" while it reads "Place
 * Appointment" on screen - which is the same defect the visible copy already had, one layer down and
 * only audible to the people who cannot see the correction.
 */
export const isAppointmentPlacement = (appointment?: Appointment): boolean => {
    if (!appointment?.id) return false;

    return !appointment.participant?.some((participant) =>
        participant.actor?.reference?.startsWith('Practitioner/')
        || participant.actor?.reference?.startsWith('PractitionerRole/'),
    );
};