import type { PractitionerRole } from "fhir/r4";

export type AdoptOwnNewRoleOutcome = "ignored" | "adopted" | "refresh-failed" | "stale";

interface AdoptOwnNewRoleDeps {
  isMine: (role: PractitionerRole) => boolean;
  reMint: () => Promise<string | null>;
  adopt: (role: PractitionerRole) => void;
  /** False once the session or practice that saw the role has changed. */
  stillCurrent: () => boolean;
  onRefreshFailed: () => void;
}

// A role added to yourself opens its workspace only with a token that carries its scopes, so the
// workspace waits for a successful refresh; a failed one keeps the saved role and the old session.
export async function adoptOwnNewRole(role: PractitionerRole, deps: AdoptOwnNewRoleDeps): Promise<AdoptOwnNewRoleOutcome> {
  if (!deps.isMine(role)) return "ignored";
  const token = await deps.reMint().catch(() => null);
  if (!deps.stillCurrent()) return "stale";
  if (!token) {
    deps.onRefreshFailed();
    return "refresh-failed";
  }
  deps.adopt(role);
  return "adopted";
}