import { readdirSync, statSync } from 'node:fs'
import { join } from 'node:path'

const assetsDir = join(process.cwd(), 'dist', 'assets')
const files = readdirSync(assetsDir)
const entry = files.find(file => /^index-[^/]+\.js$/.test(file))
const detailChunk = files.find(file => /^_virtual_content-details-[^/]+\.js$/.test(file))
const maxInitialBytes = 700 * 1024

if (!entry) throw new Error('Kein initialer JavaScript-Entry-Chunk gefunden.')
if (!detailChunk) throw new Error('Kein separater Content-Detail-Chunk gefunden.')

const entryBytes = statSync(join(assetsDir, entry)).size
if (entryBytes > maxInitialBytes) {
  throw new Error(`Initialer JS-Chunk ist zu groß: ${entryBytes} Bytes (Limit ${maxInitialBytes}).`)
}

console.log(`Bundle-Prüfung: ${entry}=${entryBytes} Bytes, Detail-Chunk=${detailChunk}`)