import type { Event } from 'nostr-tools'
import { extractTagsFromEvent } from '../nostrTagSystem'
import type { PresentationProfileData } from './profileJson'

type ExtractedTags = ReturnType<typeof extractTagsFromEvent>

export function buildPresentationArticle(params: {
  id: string
  hash: string
  version: number
  index: number
  event: Event
  tags: ExtractedTags
  profileData: PresentationProfileData | null
  originalCategory: 'science-fiction' | 'scientific-research' | undefined
}): import('@/types/nostr').AuthorPresentationArticle {
  const description = resolvePresentationDescription(params.profileData, params.tags)
  const contentDescription = sanitizePresentationContentDescription(resolvePresentationContentDescriptionRaw(params.profileData, params.tags))
  const thumbnailUrl = resolvePresentationThumbnailUrl(params.profileData, params.tags)
  const mainnetAddress = resolvePresentationMainnetAddress(params.profileData, params.tags)
  const bannerUrl = resolvePresentationBannerUrl(params.profileData, params.tags)
  const title = resolvePresentationTitle(params.tags)
  const preview = resolvePresentationPreview(params.tags, params.event.content)

  return {
    id: params.id,
    hash: params.hash,
    version: params.version,
    index: params.index,
    pubkey: params.event.pubkey,
    title,
    preview,
    content: params.event.content,
    description,
    contentDescription,
    thumbnailUrl,
    createdAt: params.event.created_at,
    zapAmount: 0,
    paid: true,
    category: 'author-presentation',
    isPresentation: true,
    mainnetAddress,
    totalSponsoring: 0,
    originalCategory: params.originalCategory ?? 'science-fiction',
    ...(bannerUrl ? { bannerUrl } : {}),
  }
}

function resolvePresentationTitle(tags: ExtractedTags): string {
  return typeof tags.title === 'string' && tags.title.length > 0 ? tags.title : 'Présentation'
}

function resolvePresentationPreview(tags: ExtractedTags, content: string): string {
  if (typeof tags.preview === 'string' && tags.preview.length > 0) {
    return tags.preview
  }
  return content.substring(0, 200)
}

function resolvePresentationDescription(profileData: PresentationProfileData | null, tags: ExtractedTags): string {
  if (typeof profileData?.presentation === 'string') {
    return profileData.presentation
  }
  return typeof tags.description === 'string' ? tags.description : ''
}

function resolvePresentationContentDescriptionRaw(profileData: PresentationProfileData | null, tags: ExtractedTags): string {
  if (typeof profileData?.contentDescription === 'string') {
    return profileData.contentDescription
  }
  return typeof tags.description === 'string' ? tags.description : ''
}

function sanitizePresentationContentDescription(raw: string): string {
  return raw
    .split('\n')
    .filter((line) => !line.includes('Adresse Bitcoin mainnet (pour le sponsoring)'))
    .join('\n')
    .trim()
}

function resolvePresentationThumbnailUrl(profileData: PresentationProfileData | null, tags: ExtractedTags): string {
  if (typeof profileData?.pictureUrl === 'string') {
    return profileData.pictureUrl
  }
  return typeof tags.pictureUrl === 'string' ? tags.pictureUrl : ''
}

function resolvePresentationBannerUrl(profileData: PresentationProfileData | null, tags: ExtractedTags): string | undefined {
  if (typeof profileData?.pictureUrl === 'string' && profileData.pictureUrl.length > 0) {
    return profileData.pictureUrl
  }
  return typeof tags.pictureUrl === 'string' ? tags.pictureUrl : undefined
}

function resolvePresentationMainnetAddress(profileData: PresentationProfileData | null, tags: ExtractedTags): string {
  const fromProfile = profileData?.mainnetAddress
  if (typeof fromProfile === 'string') {
    return fromProfile
  }
  return typeof tags.mainnetAddress === 'string' ? tags.mainnetAddress : ''
}