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

// SNOMED "New patient consultation"; must match the server's NEW_PATIENT_CONSULTATION_SNOMED_CODE.
export const NEW_PATIENT_CONSULTATION_SNOMED_CODE = '185387006';

const SNOMED_SYSTEM = 'http://snomed.info/sct';

// True when a service's type (or an appointment's serviceType) carries the consultation concept.
export const isNewPatientConsultationType = (concepts: CodeableConcept[] | undefined): boolean =>
  (concepts ?? []).some((concept) =>
    (concept.coding ?? []).some(
      (coding) => coding.system === SNOMED_SYSTEM && coding.code === NEW_PATIENT_CONSULTATION_SNOMED_CODE,
    ),
  );