import { act, renderHook } from '@testing-library/react'
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'

const mocks = vi.hoisted(() => ({
  checkLoginOtp: vi.fn(),
  replace: vi.fn(),
  sendLoginOtp: vi.fn(),
}))

vi.mock('next/navigation', () => ({
  useRouter: () => ({ replace: mocks.replace }),
  useSearchParams: () => new URLSearchParams('redirect=%2Fbookings%2Fbooking-1'),
}))
vi.mock('@/hooks/useAuth', () => ({
  default: () => ({
    checkLoginOtp: mocks.checkLoginOtp,
    completeProfile: vi.fn(),
    sendLoginOtp: mocks.sendLoginOtp,
    user: null,
  }),
}))
vi.mock('@/lib/toast', () => ({ addToast: vi.fn() }))
vi.mock('@/lib/analytics', () => ({
  ANALYTICS_EVENTS: {
    AUTH_FAILED: 'auth_failed',
    AUTH_OPENED: 'auth_opened',
    LOGIN: 'login',
    OTP_REQUESTED: 'otp_requested',
  },
  trackAnalyticsEvent: vi.fn(),
}))
vi.mock('@/hooks/useSmsOtpAutofill', () => ({ useSmsOtpAutofill: () => undefined }))

import { useAuthFlow } from '@/features/auth/useAuthFlow'

describe('useAuthFlow functional OTP journey', () => {
  beforeEach(() => {
    mocks.sendLoginOtp.mockResolvedValue({ purpose: 'login', expiresIn: 120, resendIn: 60 })
    mocks.checkLoginOtp.mockResolvedValue('active')
  })

  afterEach(() => {
    vi.clearAllMocks()
  })

  it('normalizes the entered mobile, verifies the OTP, then redirects to the requested consumer destination', async () => {
    const { result } = renderHook(() => useAuthFlow())

    await act(() => result.current.sendOtp({ mobile: '۰۹۱۲۳۴۵۶۷۸۹' }))
    expect(mocks.sendLoginOtp).toHaveBeenCalledWith({ mobile: '09123456789' })
    expect(result.current.step).toBe('otp')

    await act(() => result.current.checkOtp({ code: '۱۲۳۴' }))

    expect(mocks.checkLoginOtp).toHaveBeenCalledWith({ mobile: '09123456789', code: '1234' })
    expect(mocks.replace).toHaveBeenCalledWith('/bookings/booking-1')
  })

  it('keeps the user on the OTP step and does not redirect when verification fails', async () => {
    const invalidOtp = Object.assign(new Error('invalid otp'), { apiCode: 'OTP_INVALID' })

    mocks.checkLoginOtp.mockRejectedValue(invalidOtp)
    const { result } = renderHook(() => useAuthFlow())

    await act(() => result.current.sendOtp({ mobile: '09123456789' }))
    await act(() => result.current.checkOtp({ code: '1234' }))

    expect(result.current.step).toBe('otp')
    expect(result.current.otpError).not.toBeNull()
    expect(mocks.replace).not.toHaveBeenCalled()
  })

  it('moves a pending user to profile completion instead of navigating away', async () => {
    mocks.checkLoginOtp.mockResolvedValue('pending')
    const { result } = renderHook(() => useAuthFlow())

    await act(() => result.current.sendOtp({ mobile: '09123456789' }))
    await act(() => result.current.checkOtp({ code: '1234' }))

    expect(result.current.step).toBe('profile')
    expect(mocks.replace).not.toHaveBeenCalled()
  })

  it('auto-submits when the OTP field reaches the required length', async () => {
    const { result } = renderHook(() => useAuthFlow())

    await act(() => result.current.sendOtp({ mobile: '09123456789' }))

    act(() => {
      result.current.checkOtpForm.setValue('code', '1234', { shouldDirty: true, shouldValidate: true })
    })

    await act(async () => {
      await Promise.resolve()
    })

    expect(mocks.checkLoginOtp).toHaveBeenCalledWith({ mobile: '09123456789', code: '1234' })
    expect(mocks.replace).toHaveBeenCalledWith('/bookings/booking-1')
  })

  it('does not re-submit the same completed OTP after a failed verification', async () => {
    const invalidOtp = Object.assign(new Error('invalid otp'), { apiCode: 'OTP_INVALID' })

    mocks.checkLoginOtp.mockRejectedValue(invalidOtp)
    const { result } = renderHook(() => useAuthFlow())

    await act(() => result.current.sendOtp({ mobile: '09123456789' }))

    act(() => {
      result.current.checkOtpForm.setValue('code', '1234', { shouldDirty: true, shouldValidate: true })
    })
    await act(async () => {
      await Promise.resolve()
    })

    expect(mocks.checkLoginOtp).toHaveBeenCalledTimes(1)

    await act(async () => {
      await Promise.resolve()
    })

    expect(mocks.checkLoginOtp).toHaveBeenCalledTimes(1)
  })
})