import { fireEvent, render, waitFor } from '@testing-library/svelte'
import { describe, expect, it, vi } from 'vitest'
import { APP_SERVICES } from '$lib/app-services'
import { account, preferences, session, status, testServices } from '$test/fixtures'
import BlogEntry from './BlogEntry.svelte'

function renderEntry(overrides: Parameters<typeof status>[0]) {
  return render(BlogEntry, {
    props: { status: status(overrides) },
    context: new Map([[APP_SERVICES, testServices()]]),
  })
}

describe('BlogEntry YouTube embeds', () => {
  it('turns a YouTube note link into an attachment-style embed', () => {
    const view = renderEntry({
      content:
        '<p>Watch this: <a href="https://www.youtube.com/watch?v=pyNCigSulNs">https://www.youtube.com/watch?v=pyNCigSulNs</a></p>',
      card: {
        url: 'https://www.youtube.com/watch?v=pyNCigSulNs',
        title: 'Server-generated YouTube preview',
        description: 'This should be replaced by the player.',
        type: 'video',
      },
    })

    const frame = view.getByTitle('YouTube video')
    expect(frame).toHaveAttribute(
      'src',
      'https://www.youtube-nocookie.com/embed/pyNCigSulNs',
    )
    expect(frame.closest('.attachment')).toHaveAttribute('data-type', 'youtube')
    expect(view.getByRole('link', { name: 'Watch on YouTube' })).toHaveAttribute(
      'href',
      'https://www.youtube.com/watch?v=pyNCigSulNs',
    )
    expect(view.queryByText('Server-generated YouTube preview')).not.toBeInTheDocument()
  })

  it('does not load a sensitive player before the reader reveals it', async () => {
    const view = renderEntry({
      content: '<p><a href="https://youtu.be/pyNCigSulNs">video</a></p>',
      sensitive: true,
    })

    expect(view.queryByTitle('YouTube video')).not.toBeInTheDocument()
    await fireEvent.click(view.getByRole('button', { name: 'Show sensitive video' }))
    expect(view.getByTitle('YouTube video')).toBeInTheDocument()
  })
})

describe('BlogEntry MFM rendering', () => {
  it('renders the Pleroma API MFM HTML inside a backend-free blog entry', () => {
    const view = renderEntry({
      content:
        '<p>It <span class="mfm-spin" data-mfm-speed="2s" data-mfm-left>works</span></p>',
    })

    const effect = view.getByText('works')
    expect(effect).toHaveClass('mfm', '-pause')
    expect(effect).toHaveAttribute('data-mfm-operator', 'spin')
    expect(effect).toHaveStyle({
      animationName: 'mfm-spin',
      animationDuration: '2s',
      animationDirection: 'reverse',
    })
  })
})

describe('BlogEntry Heleneposting', () => {
  it('replaces only the displayed author name and avatar when enabled', () => {
    const original = account({
      acct: 'actual-author',
      display_name: 'Actual Author',
      avatar: 'https://example.test/actual.png',
      avatar_static: 'https://example.test/actual.png',
    })
    const services = testServices({
      preferences: preferences({ heleneposting: true }),
    })
    const view = render(BlogEntry, {
      props: {
        status: status({
          account: original,
          content: '<p>Signed through <em>HTML</em><br>&mdash; Helene</p>',
        }),
      },
      context: new Map([[APP_SERVICES, services]]),
    })

    expect(view.container.querySelector('.blog-entry-author')).toHaveAttribute(
      'href',
      '#/@actual-author',
    )
    expect(view.queryByText('Actual Author')).not.toBeInTheDocument()
    expect(view.container.querySelector('.blog-entry-avatar img')).toHaveAttribute(
      'src',
      expect.stringContaining('helene'),
    )
    expect(view.getByText('@actual-author@example.test')).toBeInTheDocument()
  })
})

describe('BlogEntry quote posts', () => {
  it('renders a Pleroma quote and links to quote composition and the quote list', () => {
    const quoted = status({
      id: 'quoted-entry',
      content: '<p>Quoted words</p>',
      account: account({ id: 'quoted-author', display_name: 'Quoted Author' }),
    })
    const outer = status({
      id: 'outer-entry',
      content: '<p>My commentary</p>',
      quotes_count: 3,
      pleroma: { quote: quoted, quote_id: quoted.id, quote_visible: true },
    })
    const services = testServices({
      session: session({ signedIn: true, token: 'token', me: account() }),
    })
    const view = render(BlogEntry, {
      props: { status: outer },
      context: new Map([[APP_SERVICES, services]]),
    })

    expect(view.getByText('Quoted words')).toBeInTheDocument()
    expect(view.getByRole('link', { name: 'Quote' })).toHaveAttribute(
      'href',
      '#/compose?quote=outer-entry',
    )
    expect(view.getByRole('link', { name: 'Quotes (3)' })).toHaveAttribute(
      'href',
      '#/blog/outer-entry/quotes',
    )
  })

  it('shows a Mastodon quote authorization placeholder without leaking content', () => {
    const hidden = status({ id: 'hidden-quote', content: '<p>Do not display me</p>' })
    const view = renderEntry({
      quote: { state: 'blocked_account', quoted_status: hidden },
    })

    expect(view.getByText('The quoted account is blocked.')).toBeInTheDocument()
    expect(view.queryByText('Do not display me')).not.toBeInTheDocument()
  })

  it('does not offer quoting when Mastodon says the viewer is denied', () => {
    const view = renderEntry({
      quote_approval: {
        automatic: [],
        manual: [],
        current_user: 'denied',
      },
    })

    expect(view.queryByRole('link', { name: 'Quote' })).not.toBeInTheDocument()
  })
})

describe('BlogEntry emoji reactions', () => {
  it('collapses the reaction bar when the entry has no reactions', () => {
    const view = renderEntry({ pleroma: { emoji_reactions: [] } })

    expect(view.queryByLabelText('Emoji reactions')).not.toBeInTheDocument()
  })

  it('shows counts for Unicode and custom Pleroma/Akkoma reactions', () => {
    const view = renderEntry({
      pleroma: {
        emoji_reactions: [
          { name: '🎉', count: 2, me: false },
          {
            name: 'party_blob@remote.example',
            count: 3,
            me: true,
            url: 'https://cdn.example/emoji/party_blob.png',
          },
        ],
      },
    })

    expect(view.getByLabelText('Emoji reactions')).toBeInTheDocument()
    expect(
      view.getByRole('button', { name: 'Add 🎉 reaction, 2 reactions' }),
    ).toHaveTextContent('2')
    expect(
      view.getByRole('button', {
        name: 'Remove :party_blob@remote.example: reaction, 3 reactions',
      }),
    ).toHaveAttribute('aria-pressed', 'true')
    expect(view.getByAltText(':party_blob@remote.example:')).toHaveAttribute(
      'src',
      'https://cdn.example/emoji/party_blob.png',
    )
  })

  it('optimistically adds an existing reaction and applies the returned status', async () => {
    const original = status({
      pleroma: { emoji_reactions: [{ name: '🎉', count: 2, me: false }] },
    })
    const confirmed = status({
      pleroma: { emoji_reactions: [{ name: '🎉', count: 3, me: true }] },
    })
    const onupdate = vi.fn()
    const setEmojiReaction = vi.fn().mockResolvedValue(confirmed)
    const services = testServices({
      session: session({ signedIn: true, me: account() }),
      endpoints: { setEmojiReaction },
    })
    const view = render(BlogEntry, {
      props: { status: original, onupdate },
      context: new Map([[APP_SERVICES, services]]),
    })

    await fireEvent.click(
      view.getByRole('button', { name: 'Add 🎉 reaction, 2 reactions' }),
    )

    expect(setEmojiReaction).toHaveBeenCalledWith(
      services.session.api,
      original.id,
      '🎉',
      true,
    )
    expect(onupdate.mock.calls[0][0].pleroma?.emoji_reactions).toEqual([
      { name: '🎉', count: 3, me: true },
    ])
    await waitFor(() => expect(onupdate).toHaveBeenLastCalledWith(confirmed))
  })

  it('removes the viewer’s existing custom reaction', async () => {
    const customReaction = {
      name: 'party_blob@remote.example',
      count: 1,
      me: true,
      url: 'https://cdn.example/emoji/party_blob.png',
    }
    const original = status({
      pleroma: { emoji_reactions: [customReaction] },
    })
    const confirmed = status({ pleroma: { emoji_reactions: [] } })
    const onupdate = vi.fn()
    const setEmojiReaction = vi.fn().mockResolvedValue(confirmed)
    const services = testServices({
      session: session({ signedIn: true, me: account() }),
      endpoints: { setEmojiReaction },
    })
    const view = render(BlogEntry, {
      props: { status: original, onupdate },
      context: new Map([[APP_SERVICES, services]]),
    })

    await fireEvent.click(
      view.getByRole('button', {
        name: 'Remove :party_blob@remote.example: reaction, 1 reaction',
      }),
    )

    expect(setEmojiReaction).toHaveBeenCalledWith(
      services.session.api,
      original.id,
      customReaction.name,
      false,
    )
    expect(onupdate.mock.calls[0][0].pleroma?.emoji_reactions).toEqual([])
    await waitFor(() => expect(onupdate).toHaveBeenLastCalledWith(confirmed))
  })
})