export function isWorkOrderCanceled(status: string | null | undefined): boolean {
  return status === "Canceled" || status === "Cancelled";
}

export function isWorkOrderCompleted(status: string | null | undefined): boolean {
  return status === "Completed" || status === "Done";
}

export function isWorkOrderCoreLocked(status: string | null | undefined): boolean {
  return isWorkOrderCompleted(status);
}

export function isWorkOrderFullyLocked(status: string | null | undefined): boolean {
  return isWorkOrderCanceled(status);
}

export function canMutateWorkOrderFlag(status: string | null | undefined): boolean {
  return !isWorkOrderFullyLocked(status);
}

export function canMutateWorkOrderComments(status: string | null | undefined): boolean {
  return !isWorkOrderFullyLocked(status);
}

export function canMutateWorkOrderExtraDocs(status: string | null | undefined): boolean {
  return !isWorkOrderFullyLocked(status);
}

const COMPLETED_BOARD_PATCH_KEYS = new Set(["flagColor"]);

/**
 * Board PATCH policy for Completed: only `flagColor`. Comments and Extra Docs use
 * dedicated endpoints (`canMutateWorkOrderComments` / `canMutateWorkOrderExtraDocs`).
 */
export function canApplyWorkOrderTablePatch(
  status: string | null | undefined,
  patch: Record<string, unknown>,
): boolean {
  if (isWorkOrderFullyLocked(status)) {
    return false;
  }
  if (!isWorkOrderCoreLocked(status)) {
    return true;
  }
  const keys = Object.keys(patch);
  return keys.length > 0 && keys.every((key) => COMPLETED_BOARD_PATCH_KEYS.has(key));
}

/** Completion document / completion-media surface — not Extra Docs or comments. */
export function isWorkOrderCompletionSurfaceReadOnly(status: string | null | undefined): boolean {
  return isWorkOrderFullyLocked(status) || isWorkOrderCoreLocked(status);
}