import { CATEGORY_LANDING_DOCUMENTS, type CategoryLandingDocument } from './categoryLandingDocument'

export interface CategoryLandingFaq {
  question: string
  answer: string
}

export interface CategoryLandingContent {
  eyebrow: string
  tagline: string
  intro: string
  article: CategoryLandingDocument['article']
  faqs: readonly CategoryLandingFaq[]
}

const CATEGORY_EYEBROWS: Record<keyof typeof CATEGORY_LANDING_DOCUMENTS, string> = {
  'arts-culture': 'رویدادهای هنر و فرهنگ',
  'learning-experience': 'رویدادهای یادگیری و تجربه',
  'games-entertainment': 'رویدادهای بازی و سرگرمی',
  'sports-adventure': 'رویدادهای ورزش و ماجراجویی',
  'food-gatherings': 'رویدادهای خوراک و دورهمی',
  'conversation-connection': 'رویدادهای گفت‌وگو و ارتباط',
}

const toLandingContent = (slug: keyof typeof CATEGORY_LANDING_DOCUMENTS, document: CategoryLandingDocument): CategoryLandingContent => {
  const [tagline = '', ...introLines] = document.intro.split('\n')

  return {
    eyebrow: CATEGORY_EYEBROWS[slug],
    tagline,
    intro: introLines.join('\n').trim(),
    article: document.article,
    faqs: document.faqs,
  }
}

/**
 * Server-rendered, static editorial copy keyed by the backend category slug.
 * The generated document source is a lossless transcription of the supplied
 * DOCX; category name, image and metadata still come from the backend.
 */
export const CATEGORY_LANDING_CONTENT: Record<string, CategoryLandingContent> = Object.fromEntries(
  Object.entries(CATEGORY_LANDING_DOCUMENTS).map(([slug, document]) => [
    slug,
    toLandingContent(slug as keyof typeof CATEGORY_LANDING_DOCUMENTS, document),
  ])
)

export const getCategoryLandingContent = (categorySlug: string): CategoryLandingContent | undefined =>
  CATEGORY_LANDING_CONTENT[categorySlug]