import type { AssetManager } from '@/lib/assets/assetManager'

export type AssetsIndex = {
  images: string[]
  fonts: string[]
  other: string[]
}

export function buildAssetsIndex(am: AssetManager): Uint8Array {
  // 그룹별 경로 수집
  const images: string[] = []
  const fonts: string[] = []
  const other: string[] = []
  for (const ref of am.list()) {
    if (ref.mimeType.startsWith('image/')) images.push(ref.path)
    else if (ref.mimeType.startsWith('font/')) fonts.push(ref.path)
    else other.push(ref.path)
  }
  // 경로 사전순 정렬로 일정한 출력 보장
  images.sort()
  fonts.sort()
  other.sort()
  const obj: AssetsIndex = { images, fonts, other }
  const json = JSON.stringify(obj, null, 2)
  return new TextEncoder().encode(json)
}