import type { RootTabParamList } from "../types/navigation";

export type RootRouteName = keyof RootTabParamList | null;

type StartupInitialRouteInput = {
  hasExplicitTarget: boolean;
  startPageSetting: unknown;
};

/**
 * Resolve the tab mounted before imperative startup navigation runs.
 *
 * An explicit deep link/notification target keeps the neutral top menu as the
 * initial route so the imperative handler can choose the final nested route.
 */
export const resolveStartupInitialRoute = ({
  hasExplicitTarget,
  startPageSetting,
}: StartupInitialRouteInput): keyof RootTabParamList => {
  if (hasExplicitTarget) return "topMenu";
  return startPageSetting === true || startPageSetting === "true"
    ? "positions"
    : "topMenu";
};