export function adaptSlots(slotsResponse) {
  const sessions = slotsResponse?.data?.sessions ?? slotsResponse?.sessions ?? [];

  // Group slots by the shifts the backend already returns; the front does not
  // decide shift boundaries (no hard-coded morning/evening split). Each session
  // becomes one tab labelled with its own time range.
  return sessions
    .filter((session) => Array.isArray(session.slots) && session.slots.length > 0)
    .map((session) => ({
      start_time: session.start_time,
      end_time: session.end_time,
      label: `${session.start_time} - ${session.end_time}`,
      slots: session.slots,
    }));
}

export function hasAvailable(slots) {
  return Array.isArray(slots) && slots.some((slot) => slot.is_available);
}