import type { LegacyEventRedirectLookup } from '@/lib/seo/serverApi'
import { CONSUMER_ROUTES, SEO_ROUTES } from '@/constants/routes'

const CANONICAL_EVENT_STATUSES = new Set(['published', 'full', 'completed'])

export function resolveLegacyEventDestination(event: LegacyEventRedirectLookup): string | null {
  if (!event.slug) return null
  if (event.settings?.isDiscoverable === false) return null
  if (!CANONICAL_EVENT_STATUSES.has(event.status)) return null

  return SEO_ROUTES.EVENT_LANDING(event.slug)
}

/** Public event detail href: canonical slug when available, otherwise private UUID route. */
export function resolveEventDetailHref(event: LegacyEventRedirectLookup): string {
  return resolveLegacyEventDestination(event) ?? CONSUMER_ROUTES.EVENT_DETAIL(event.id)
}