import { useEffect, useState } from 'react'
import type { Article } from '@/types/nostr'

export function useExistingPresentation(params: {
  pubkey: string | null
  checkPresentationExists: () => Promise<Article | null>
}): { existingPresentation: Article | null; loadingPresentation: boolean } {
  const [existingPresentation, setExistingPresentation] = useState<Article | null>(null)
  const [loadingPresentation, setLoadingPresentation] = useState(true)

  useEffect(() => {
    void loadExistingPresentation({
      pubkey: params.pubkey,
      checkPresentationExists: params.checkPresentationExists,
      setExistingPresentation,
      setLoadingPresentation,
    })
  }, [params.pubkey, params.checkPresentationExists])

  return { existingPresentation, loadingPresentation }
}

async function loadExistingPresentation(params: {
  pubkey: string | null
  checkPresentationExists: () => Promise<Article | null>
  setExistingPresentation: (value: Article | null) => void
  setLoadingPresentation: (value: boolean) => void
}): Promise<void> {
  if (!params.pubkey) {
    params.setLoadingPresentation(false)
    return
  }
  try {
    params.setExistingPresentation(await params.checkPresentationExists())
  } catch (e) {
    console.error('[AuthorPresentationEditor] Error loading presentation:', e)
  } finally {
    params.setLoadingPresentation(false)
  }
}