const DEFAULT_ADMIN_BASE_PATH = '/admin'

function normalizeAdminBasePath(value: string | undefined) {
  const raw = (value || DEFAULT_ADMIN_BASE_PATH).trim()
  if (!raw || raw === '/') return DEFAULT_ADMIN_BASE_PATH
  const withLeadingSlash = raw.startsWith('/') ? raw : `/${raw}`
  return withLeadingSlash.replace(/\/+$/, '') || DEFAULT_ADMIN_BASE_PATH
}

export const ADMIN_BASE_PATH = normalizeAdminBasePath(import.meta.env.VITE_ADMIN_BASE_PATH)

export function adminPath(path = '') {
  const suffix = path.trim().replace(/^\/+/, '')
  if (!suffix) return ADMIN_BASE_PATH
  return `${ADMIN_BASE_PATH}/${suffix}`
}

export const ADMIN_LOGIN_PATH = adminPath('login')
export const ADMIN_DASHBOARD_PATH = adminPath('dashboard')

export function isAdminPath(path: string) {
  return path === ADMIN_BASE_PATH || path.startsWith(`${ADMIN_BASE_PATH}/`)
}