Function useRetainedPersona

desktop/src/features/profile/ui/UserProfilePanelUtils.ts:337–357

(
  sourcePersona: AgentPersona | undefined,
  profileIdentityKey: string,
)

}

export function useRetainedPersona(
  sourcePersona: AgentPersona | undefined,
  profileIdentityKey: string,
) {
  const [retainedPersona, setRetainedPersona] = React.useState<{
    key: string;
    persona: AgentPersona;
  } | null>(null);

  React.useEffect(() => {
    if (!sourcePersona) return;
    setRetainedPersona({ key: profileIdentityKey, persona: sourcePersona });
  }, [profileIdentityKey, sourcePersona]);

  return (
    sourcePersona ??
    (retainedPersona?.key === profileIdentityKey
      ? retainedPersona.persona
      : undefined)
  );
}