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

vi.mock('@/api/auth', () => {
  return {
    currentUser: vi.fn(async () => ({ id: 42, email: 'grace@example.com', displayName: 'Grace Hopper' })),
    loginWithPassword: vi.fn(async (email: string) => ({ id: 8, email, displayName: email })),
    logout: vi.fn(async () => {}),
    createAccount: vi.fn(async () => {
      throw new Error('createAccount not implemented yet')
    }),
    handleGoogleLogin: vi.fn(async () => {
      throw new Error('handleGoogleLogin not implemented yet')
    }),
  }
})

import { useAuth, loadUser } from '@/composables/useAuth'

describe('useAuth (multitenant state)', () => {
  beforeEach(() => {
    // Reset modules and state between tests
    vi.resetModules()
  })

  it('exposes households and activeHousehold state with setters', async () => {
    const { user, households, activeHousehold, setHouseholds, setActiveHousehold } = useAuth()
    expect(user.value).toBeNull()
    expect(households.value).toEqual([])
    expect(activeHousehold.value).toBeNull()

    const hs = [
      { id: 1, name: 'Smiths', slug: 'the-smiths' },
      { id: 2, name: 'Johnsons', slug: 'the-johnsons' },
    ]
    setHouseholds(hs)
    expect(households.value.length).toBe(2)
    setActiveHousehold(hs[1])
    expect(activeHousehold.value?.slug).toBe('the-johnsons')
    setActiveHousehold('the-smiths')
    expect(activeHousehold.value?.slug).toBe('the-smiths')
  })

  it('supports loading current user, loginWithPassword, and logout clearing user', async () => {
    const { user, loginWithPassword, logout } = useAuth()
    // load current user
    await loadUser()
  expect(user.value?.displayName).toBe('Grace Hopper')
    // login with email/password
  await loginWithPassword('user@example.com', 'pw')
  expect(user.value?.displayName).toBe('user@example.com')
    // logout clears user
    await logout()
    expect(user.value).toBeNull()
  })

})