import type { ArticleDraft } from './articlePublisherTypes'
import type { AlbyInvoice } from '@/types/alby'
import type { Article } from '@/types/nostr'
import { generatePublicationHashId } from './hashIdGenerator'
import { buildObjectId } from './urlGenerator'

export async function buildParsedArticleFromDraft(params: {
  draft: ArticleDraft
  invoice: AlbyInvoice
  authorPubkey: string
}): Promise<{ article: Article; hash: string; version: number; index: number }> {
  const categoryTag = mapDraftCategoryToTag(params.draft.category)
  const hashId = await generatePublicationHashId(buildPublicationHashInput({ draft: params.draft, authorPubkey: params.authorPubkey, categoryTag }))

  const hash = hashId
  const version = 0
  const index = 0
  const id = buildObjectId(hash, index, version)

  const article: Article = {
    id,
    hash,
    version,
    index,
    pubkey: params.authorPubkey,
    title: params.draft.title,
    preview: params.draft.preview,
    content: '',
    description: params.draft.preview,
    contentDescription: params.draft.preview,
    createdAt: Math.floor(Date.now() / 1000),
    zapAmount: params.draft.zapAmount,
    paid: false,
    thumbnailUrl: params.draft.bannerUrl ?? '',
    invoice: params.invoice.invoice,
    ...(params.invoice.paymentHash ? { paymentHash: params.invoice.paymentHash } : {}),
    ...(params.draft.category ? { category: params.draft.category } : {}),
    ...(params.draft.seriesId ? { seriesId: params.draft.seriesId } : {}),
    ...(params.draft.bannerUrl ? { bannerUrl: params.draft.bannerUrl } : {}),
    ...(params.draft.pages && params.draft.pages.length > 0 ? { pages: params.draft.pages } : {}),
    kindType: 'article',
  }

  return { article, hash, version, index }
}

export function mapDraftCategoryToTag(category: ArticleDraft['category'] | undefined): 'sciencefiction' | 'research' {
  if (category === 'scientific-research') {
    return 'research'
  }
  return 'sciencefiction'
}

function buildPublicationHashInput(params: {
  draft: ArticleDraft
  authorPubkey: string
  categoryTag: 'sciencefiction' | 'research'
}): Parameters<typeof generatePublicationHashId>[0] {
  return {
    pubkey: params.authorPubkey,
    title: params.draft.title,
    preview: params.draft.preview,
    category: params.categoryTag,
    ...(params.draft.seriesId ? { seriesId: params.draft.seriesId } : {}),
    ...(params.draft.bannerUrl ? { bannerUrl: params.draft.bannerUrl } : {}),
    zapAmount: params.draft.zapAmount,
  }
}