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

const { redirectMock, verifyUserMock, headerGetMock, sessionSaveMock } = vi.hoisted(() => ({
  redirectMock: vi.fn((path: string) => { throw new Error(`REDIRECT:${path}`) }),
  verifyUserMock: vi.fn(),
  headerGetMock: vi.fn(),
  sessionSaveMock: vi.fn(),
}))

vi.mock('next/navigation', () => ({ redirect: redirectMock }))
vi.mock('next/headers', () => ({
  cookies: vi.fn().mockResolvedValue({}),
  headers: vi.fn().mockResolvedValue({ get: headerGetMock }),
}))
vi.mock('iron-session', () => ({
  getIronSession: vi.fn().mockResolvedValue({
    userId: '',
    isDemo: false,
    save: sessionSaveMock,
  }),
}))
vi.mock('@/lib/session', () => ({ sessionOptions: { cookieName: 't', password: 't' } }))
vi.mock('@/lib/auth', () => ({
  verifyUser: verifyUserMock,
  registerUser: vi.fn(),
}))
vi.mock('@/lib/rate-limit', () => ({ checkRateLimit: vi.fn().mockReturnValue(true) }))

import { loginAction } from '@/actions/auth'

const IPHONE_UA = 'Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) Mobile/15E148 Safari/604.1'
const IPAD_UA = 'Mozilla/5.0 (iPad; CPU OS 17_4 like Mac OS X) Safari/604.1'
const DESKTOP_UA = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 14_4) Chrome/124.0.0.0 Safari/537.36'

function fd(username: string, password: string) {
  const f = new FormData()
  f.set('username', username)
  f.set('password', password)
  return f
}

beforeEach(() => {
  redirectMock.mockClear()
  verifyUserMock.mockReset()
  headerGetMock.mockReset()
  sessionSaveMock.mockReset()
})

describe('loginAction UA-redirect', () => {
  it('phone-UA + actief product → /m/products/[id]/solo', async () => {
    verifyUserMock.mockResolvedValue({ id: 'u1', is_demo: false, active_product_id: 'p1' })
    headerGetMock.mockReturnValue(IPHONE_UA)
    await expect(loginAction(undefined, fd('alice', 'secret123'))).rejects.toThrow('REDIRECT:/m/products/p1/solo')
  })

  it('phone-UA zonder actief product → /m/settings', async () => {
    verifyUserMock.mockResolvedValue({ id: 'u1', is_demo: false, active_product_id: null })
    headerGetMock.mockReturnValue(IPHONE_UA)
    await expect(loginAction(undefined, fd('alice', 'secret123'))).rejects.toThrow('REDIRECT:/m/settings')
  })

  it('tablet-UA (iPad) → /dashboard', async () => {
    verifyUserMock.mockResolvedValue({ id: 'u1', is_demo: false, active_product_id: 'p1' })
    headerGetMock.mockReturnValue(IPAD_UA)
    await expect(loginAction(undefined, fd('alice', 'secret123'))).rejects.toThrow('REDIRECT:/dashboard')
  })

  it('desktop-UA → /dashboard', async () => {
    verifyUserMock.mockResolvedValue({ id: 'u1', is_demo: false, active_product_id: 'p1' })
    headerGetMock.mockReturnValue(DESKTOP_UA)
    await expect(loginAction(undefined, fd('alice', 'secret123'))).rejects.toThrow('REDIRECT:/dashboard')
  })

  it('geen UA-header → /dashboard', async () => {
    verifyUserMock.mockResolvedValue({ id: 'u1', is_demo: false, active_product_id: 'p1' })
    headerGetMock.mockReturnValue(null)
    await expect(loginAction(undefined, fd('alice', 'secret123'))).rejects.toThrow('REDIRECT:/dashboard')
  })

  it('demo-user op phone volgt dezelfde routing', async () => {
    verifyUserMock.mockResolvedValue({ id: 'demo', is_demo: true, active_product_id: 'p1' })
    headerGetMock.mockReturnValue(IPHONE_UA)
    await expect(loginAction(undefined, fd('demo', 'demo123pw'))).rejects.toThrow('REDIRECT:/m/products/p1/solo')
  })
})