/// <reference types="vite/client" />

function normalizeBase(base?: string): string {
  if (!base || base === '/') return '';
  return base.replace(/\/$/, '');
}

/** React Router basename（来自 Vite `base`） */
export function getRouterBasename(baseUrl?: string): string | undefined {
  const base = normalizeBase(baseUrl ?? import.meta.env?.BASE_URL);
  return base || undefined;
}

/** 拼接带 Vite base 前缀的应用内路径（用于 window.location 跳转） */
export function toAppPath(path: string, baseUrl?: string): string {
  const base = normalizeBase(baseUrl ?? import.meta.env?.BASE_URL);
  const normalized = path.startsWith('/') ? path : `/${path}`;
  return `${base}${normalized}`;
}

export function isOnAppPath(path: string, baseUrl?: string): boolean {
  if (typeof window === 'undefined') return false;
  const target = toAppPath(path, baseUrl);
  return window.location.pathname === target || window.location.pathname.startsWith(`${target}/`);
}