import { inArray } from 'drizzle-orm'
import { uploads } from '../../db/schema'

// Nachgeladene Thumbnails pro Upload für das Grid — bewusst ohne Joins,
// die Kommentarzahl kommt denormalisiert direkt aus der Upload-Liste
export default defineEventHandler(async (event) => {
  const ids = String(getQuery(event).ids ?? '')
    .split(',')
    .filter(id => /^[A-Za-z0-9]{1,16}$/.test(id))
    .slice(0, 200)
  if (!ids.length) return []

  const db = useDb()
  const rows = await db
    .select({
      id: uploads.id,
      type: uploads.type,
      fileName: uploads.fileName,
      externalUrl: uploads.externalUrl,
      previewImage: uploads.previewImage,
    })
    .from(uploads)
    .where(inArray(uploads.id, ids))

  return rows.map((row) => {
    const url = row.externalUrl ?? `/uploads/${row.fileName}`
    const embedId = row.type === 'youtube' && row.externalUrl ? getYoutubeId(row.externalUrl) : null
    const thumbUrl = row.previewImage
      ?? (row.type === 'youtube' && embedId ? youtubeThumbUrl(embedId) : row.type === 'image' ? url : null)
    return { id: row.id, thumbUrl }
  })
})