import { revalidatePath } from 'next/cache'
import { NextRequest, NextResponse } from 'next/server'
import { createDirectus, rest, staticToken, readItem } from '@directus/sdk'

export async function POST(req: NextRequest) {
  const body = await req.json()

  if (body.secret !== process.env.REVALIDATE_SECRET) {
    return NextResponse.json({ error: 'Invalid secret' }, { status: 401 })
  }

  if (body.type === 'homepage') {
    revalidatePath('/')
    return NextResponse.json({ revalidated: true, path: '/' })
  }

  const { article_id } = body
  if (!article_id) {
    return NextResponse.json({ error: 'Missing article_id' }, { status: 400 })
  }

  const directus = createDirectus(process.env.DIRECTUS_URL!)
    .with(staticToken(process.env.DIRECTUS_TOKEN!))
    .with(rest())

  const article = (await directus.request(
    readItem('articles', article_id, {
      fields: ['slug', 'category.slug'],
    })
  )) as { slug: string; category: { slug: string } } | null

  if (!article) {
    return NextResponse.json({ error: 'Article not found' }, { status: 404 })
  }

  const categorySlug = article.category.slug
  const { slug } = article

  revalidatePath('/')
  revalidatePath(`/${categorySlug}`)
  revalidatePath(`/${categorySlug}/${slug}`)

  return NextResponse.json({
    revalidated: true,
    paths: ['/', `/${categorySlug}`, `/${categorySlug}/${slug}`],
  })
}