import { describe, expect, it } from 'vitest'

import { FAQ_PAGE_SEO, FAQ_SCHEMA_ITEMS, faqRichResultsSchema, faqWebPageSchema } from '@/lib/seo/faqPage'

describe('faq page SEO helpers', () => {
  it('keeps FAQ meta within SERP-safe length', () => {
    expect(FAQ_PAGE_SEO.metaTitle.length).toBeLessThanOrEqual(60)
    expect(FAQ_PAGE_SEO.metaDescription.length).toBeGreaterThanOrEqual(70)
    expect(FAQ_PAGE_SEO.metaDescription.length).toBeLessThanOrEqual(160)
  })

  it('ships FAQPage rich-result entities aligned with schema items', () => {
    const faq = faqRichResultsSchema()

    expect(faq['@type']).toBe('FAQPage')
    expect(faq.mainEntity).toHaveLength(FAQ_SCHEMA_ITEMS.length)
  })

  it('points booking and hosting intents at canonical product URLs', () => {
    const register = FAQ_SCHEMA_ITEMS.find((item) => item.question === 'چطور در یک رویداد ثبت‌نام کنم؟')
    const becomeHost = FAQ_SCHEMA_ITEMS.find((item) => item.question === 'چطور میزبان شوم و رویداد بسازم؟')

    expect(register?.answer).toContain('https://ghabilee.ir/faq')
    expect(becomeHost?.answer).toContain('https://ghabilee.ir/become-a-host')
    expect(becomeHost?.answer).toContain('https://ghabilee.ir/host-guide')
  })

  it('emits a WebPage graph node with language and dates', () => {
    expect(faqWebPageSchema()).toMatchObject({
      '@type': 'WebPage',
      inLanguage: 'fa-IR',
      url: 'https://ghabilee.ir/faq',
    })
  })
})