import { readFileSync, writeFileSync, renameSync } from 'node:fs'
import { join } from 'node:path'
import { cachedLoras } from '~/shared/studio2/lora-cache.mjs'
import { listStudioLoras } from '../../utils/loras'
import { studio2Root } from '../../utils/studio2/store'
import { studio2LoraCatalog } from '../../utils/studio2/lora-catalog'

export default defineEventHandler(async (event) => {
  const { owner } = assertLibraryOwner(event)
  const path = join(studio2Root(), `loras-${owner}.cache`)
  const fresh = String(getQuery(event).fresh || '') === '1'
  const listed = await cachedLoras({
    read: () => { try { return JSON.parse(readFileSync(path, 'utf8')) } catch { return null } },
    write: value => { writeFileSync(path + '.tmp', JSON.stringify(value)); renameSync(path + '.tmp', path) },
    live: () => listStudioLoras({ fresh: true }),
    fresh
  })
  return { ...listed, ...studio2LoraCatalog(owner) }
})