import { act, renderHook } from '@testing-library/react-native'
import type { ConversationResource } from '../../types'
import { useMarkLatestMessageRead } from '../use_mark_latest_message_read'

const mockMarkRead = jest.fn()
jest.mock('../use_conversations_actions', () => ({
  useConversationsMarkRead: () => ({ markRead: mockMarkRead }),
}))
jest.mock('../use_app_state', () => ({ useAppState: () => 'active' }))

const conversation = { id: 7, unreadCount: 3 } as ConversationResource

beforeEach(() => mockMarkRead.mockReset())

describe('useMarkLatestMessageRead', () => {
  it('marks the conversation read on open', () => {
    renderHook(() => useMarkLatestMessageRead({ conversation, messages: [] }))

    expect(mockMarkRead).toHaveBeenCalledTimes(1)
  })

  it('marks read once on mount even while disabled', () => {
    renderHook(() => useMarkLatestMessageRead({ conversation, messages: [], enabled: false }))

    expect(mockMarkRead).toHaveBeenCalledTimes(1)
  })

  it('ignores unread bumps while disabled and marks read once enabled', () => {
    jest.useFakeTimers()
    const { rerender } = renderHook<void, { conversation: ConversationResource; enabled: boolean }>(
      props => useMarkLatestMessageRead({ ...props, messages: [] }),
      { initialProps: { conversation: { ...conversation, unreadCount: 0 }, enabled: false } }
    )
    expect(mockMarkRead).toHaveBeenCalledTimes(1)

    rerender({ conversation: { ...conversation, unreadCount: 2 }, enabled: false })
    act(() => jest.advanceTimersByTime(1000))

    expect(mockMarkRead).toHaveBeenCalledTimes(1)

    rerender({ conversation: { ...conversation, unreadCount: 2 }, enabled: true })
    act(() => jest.advanceTimersByTime(1000))

    expect(mockMarkRead).toHaveBeenCalledTimes(2)
    jest.useRealTimers()
  })
})