/**
 * 子账号注册/登录为 /sub/auth/*，与主站同前端；VITE_IS_SUB_PORTAL=true 时仅多一层「根进子账号登录 + 侧栏子账号壳」
 */
export const isSubPortal = import.meta.env.VITE_IS_SUB_PORTAL === 'true'

const trimTrailingSlash = (value = '') => value.replace(/\/+$/, '')

export const subPortalBaseURL = trimTrailingSlash(import.meta.env.VITE_SUB_PORTAL_BASE_URL || '')
export const mainPortalBaseURL = trimTrailingSlash(import.meta.env.VITE_MAIN_PORTAL_BASE_URL || '')

const getOrigin = (url) => {
  if (!url) return ''
  try {
    return new URL(url).origin
  } catch {
    return ''
  }
}

export const subPortalOrigin = getOrigin(subPortalBaseURL)
export const mainPortalOrigin = getOrigin(mainPortalBaseURL)
export const isPortalDomainConfigReady = Boolean(subPortalOrigin && mainPortalOrigin)

export const isCurrentOrigin = (origin) => {
  if (!origin || typeof window === 'undefined') return false
  return window.location.origin === origin
}