import type { DocumentReference, Organization, Practitioner, Reference } from "fhir/r4";
import { formatFhirHumanName } from "../../../utils/fhirHumanName.tsx";

// A practice document is filed by the person who added it AND by the practice. The deck's row names
// the person ("added 4 September 2026 by Spencer Fraise"); the practice stays an author because the
// drawer lists by `author=<practice>`, and an older file with only the practice keeps naming it.
export const practiceDocumentAuthors = (
  practitioner: Pick<Practitioner, "resourceType" | "id" | "name"> | undefined,
  organization: Pick<Organization, "id" | "name">,
): Reference[] => {
  const practice: Reference = { reference: `Organization/${organization.id}`, display: organization.name };
  if (practitioner?.resourceType !== "Practitioner" || !practitioner.id) return [practice];
  return [
    { reference: `Practitioner/${practitioner.id}`, display: formatFhirHumanName(practitioner.name) },
    practice,
  ];
};

export const practiceDocumentAddedBy = (doc: DocumentReference): string => {
  const authors = doc.author ?? [];
  const person = authors.find((a) => a.reference?.startsWith("Practitioner/") && a.display);
  return person?.display ?? authors.find((a) => a.display)?.display ?? "";
};