import { renderHook, act } from '@testing-library/react-native'
import { Alert } from 'react-native'
import { useVideoModerationJoltEvents } from '../../hooks/use_video_moderation_jolt_events'

jest.mock('../../hooks/use_api', () => ({
  useApiGet: jest.fn().mockReturnValue({ data: { id: 42 } }),
}))

const joltEventCallbacks: Record<string, (e: unknown) => void> = {}
jest.mock('../../hooks/use_jolt', () => ({
  useJoltChannel: jest.fn().mockReturnValue('channel-stub'),
  useJoltEvent: jest.fn((_channel, eventName, callback) => {
    joltEventCallbacks[eventName] = callback
  }),
}))

const alertSpy = jest.spyOn(Alert, 'alert').mockImplementation(() => {})

beforeEach(() => {
  jest.useFakeTimers()
  alertSpy.mockClear()
  Object.keys(joltEventCallbacks).forEach(k => delete joltEventCallbacks[k])
})

afterEach(() => {
  jest.useRealTimers()
})

const flaggedEvent = (attachment_id: string, content_type: string) => ({
  event: 'attachment.flagged',
  data: { data: { attachment_id, conversation_id: 1, content_type } },
})

describe('useVideoModerationJoltEvents', () => {
  it('alerts when a video attachment.flagged event fires', () => {
    renderHook(() => useVideoModerationJoltEvents())

    act(() => {
      joltEventCallbacks['attachment.flagged'](flaggedEvent('att-1', 'video/mp4'))
      jest.advanceTimersByTime(500)
    })

    expect(alertSpy).toHaveBeenCalledWith('Video removed', expect.stringContaining('video'))
  })

  it('does not alert for non-video content types', () => {
    renderHook(() => useVideoModerationJoltEvents())

    act(() => {
      joltEventCallbacks['attachment.flagged'](flaggedEvent('att-1', 'image/jpeg'))
      jest.advanceTimersByTime(500)
    })

    expect(alertSpy).not.toHaveBeenCalled()
  })

  it('rolls multiple video events into a single alert with plural copy', () => {
    renderHook(() => useVideoModerationJoltEvents())

    act(() => {
      joltEventCallbacks['attachment.flagged'](flaggedEvent('att-1', 'video/mp4'))
      joltEventCallbacks['attachment.flagged'](flaggedEvent('att-2', 'video/quicktime'))
      jest.advanceTimersByTime(500)
    })

    expect(alertSpy).toHaveBeenCalledTimes(1)
    expect(alertSpy).toHaveBeenCalledWith('Video removed', expect.stringContaining('videos'))
  })

  it('suppresses the alert when markHandledByMessageForm is called for that id', () => {
    const { result } = renderHook(() => useVideoModerationJoltEvents())

    act(() => {
      joltEventCallbacks['attachment.flagged'](flaggedEvent('att-1', 'video/mp4'))
      result.current.markHandledByMessageForm('att-1')
      jest.advanceTimersByTime(500)
    })

    expect(alertSpy).not.toHaveBeenCalled()
  })
})