export interface ModelCapability {
  readonly image_in: boolean;
  readonly video_in: boolean;
  readonly audio_in: boolean;
  readonly thinking: boolean;
  readonly tool_use: boolean;
  readonly dynamically_loaded_tools?: boolean;
}

const UNKNOWN_CAPABILITY_MARKER = Symbol.for('moonshot-ai.kosong.UNKNOWN_CAPABILITY');

export const UNKNOWN_CAPABILITY: ModelCapability = Object.freeze(
  Object.defineProperty(
    {
      image_in: false,
      video_in: false,
      audio_in: false,
      thinking: false,
      tool_use: false,
      dynamically_loaded_tools: false,
    },
    UNKNOWN_CAPABILITY_MARKER,
    { value: true },
  ),
);

export function isUnknownCapability(capability: ModelCapability): boolean {
  if (capability === UNKNOWN_CAPABILITY) return true;
  const marked =
    (capability as unknown as Record<PropertyKey, unknown>)[UNKNOWN_CAPABILITY_MARKER] === true;
  if (marked) return true;
  return (
    !capability.image_in &&
    !capability.video_in &&
    !capability.audio_in &&
    !capability.thinking &&
    !capability.tool_use &&
    capability.dynamically_loaded_tools !== true
  );
}