import type { MetadataRoute } from 'next'

export const revalidate = 3600

const ROUTES = ["/","/menu"]

async function siteUrl(): Promise<string | null> {
  const base = process.env.NEXT_PUBLIC_VULA_COMMERCE_URL
  const id = process.env.NEXT_PUBLIC_VULA_PROJECT_ID
  if (!base || !id) return null
  try {
    const res = await fetch(base + '/api/public/profile/' + id, { next: { revalidate: 3600 } })
    if (!res.ok) return null
    const url = (await res.json())?.profile?.siteUrl
    return typeof url === 'string' && url.startsWith('http') ? url.replace(/\/$/, '') : null
  } catch {
    return null
  }
}

export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
  const origin = await siteUrl()
  if (!origin) return []
  const now = new Date()
  return ROUTES.map((path) => ({
    url: origin + (path === '/' ? '' : path),
    lastModified: now,
    changeFrequency: 'weekly' as const,
    priority: path === '/' ? 1 : 0.7,
  }))
}