import { describe, it, expect, vi, beforeEach } from 'vitest'
import { setActivePinia, createPinia } from 'pinia'
import { useAuthStore } from '../../stores/auth.store'

// $fetch and navigateTo are shimmed in tests/setup.ts as globals.
// We re-cast them here so vi.mocked() provides typed mock utilities.
const mockFetch = vi.mocked($fetch as ReturnType<typeof vi.fn>)
const mockNavigateTo = vi.mocked(navigateTo as ReturnType<typeof vi.fn>)

beforeEach(() => {
  setActivePinia(createPinia())
  vi.clearAllMocks()
})

// ---------------------------------------------------------------------------
// login()
// ---------------------------------------------------------------------------
describe('login()', () => {
  it('stores the user and returns the response on success', async () => {
    const user = { id: 1, email: 'alice@example.com', displayName: 'Alice', role: 'user' }
    mockFetch.mockResolvedValueOnce({ user })

    const auth = useAuthStore()
    const result = await auth.login('alice@example.com', 'secret')

    expect(mockFetch).toHaveBeenCalledWith('/api/auth/login', {
      method: 'POST',
      body: { email: 'alice@example.com', password: 'secret' },
    })
    expect(auth.user).toEqual(user)
    expect(result).toEqual({ user })
  })

  it('includes totpCode in body when provided', async () => {
    const user = { id: 1, email: 'alice@example.com', displayName: 'Alice', role: 'user' }
    mockFetch.mockResolvedValueOnce({ user })

    const auth = useAuthStore()
    await auth.login('alice@example.com', 'secret', '123456')

    expect(mockFetch).toHaveBeenCalledWith('/api/auth/login', {
      method: 'POST',
      body: { email: 'alice@example.com', password: 'secret', totpCode: '123456' },
    })
  })

  it('returns requires_totp and does NOT set user when TOTP is required', async () => {
    mockFetch.mockResolvedValueOnce({ requires_totp: true })

    const auth = useAuthStore()
    const result = await auth.login('alice@example.com', 'secret')

    expect(result).toEqual({ requires_totp: true })
    expect(auth.user).toBeNull()
  })

  it('does NOT include an Authorization header (cookie-only auth)', async () => {
    mockFetch.mockResolvedValueOnce({ user: { id: 1, email: 'a@b.com', displayName: null, role: 'user' } })

    const auth = useAuthStore()
    await auth.login('a@b.com', 'pass')

    const callArgs = mockFetch.mock.calls[0]
    const options = callArgs[1] as Record<string, unknown>
    expect(options).not.toHaveProperty('headers')
  })
})

// ---------------------------------------------------------------------------
// logout()
// ---------------------------------------------------------------------------
describe('logout()', () => {
  it('clears user state and calls navigateTo("/login")', async () => {
    mockFetch.mockResolvedValueOnce({}) // logout POST succeeds
    const auth = useAuthStore()
    auth.user = { id: 1, email: 'alice@example.com', displayName: 'Alice', role: 'user' }

    await auth.logout()

    expect(auth.user).toBeNull()
    expect(mockNavigateTo).toHaveBeenCalledWith('/login')
  })

  it('clears user state even when the logout request fails', async () => {
    mockFetch.mockRejectedValueOnce(new Error('network error'))
    const auth = useAuthStore()
    auth.user = { id: 1, email: 'alice@example.com', displayName: 'Alice', role: 'user' }

    await auth.logout()

    expect(auth.user).toBeNull()
    expect(mockNavigateTo).toHaveBeenCalledWith('/login')
  })
})

// ---------------------------------------------------------------------------
// fetchProfile()
// ---------------------------------------------------------------------------
describe('fetchProfile()', () => {
  it('sets user on success', async () => {
    const user = { id: 2, email: 'bob@example.com', displayName: 'Bob', role: 'admin' }
    mockFetch.mockResolvedValueOnce(user)

    const auth = useAuthStore()
    await auth.fetchProfile()

    expect(auth.user).toEqual(user)
    expect(mockFetch).toHaveBeenCalledWith('/api/auth/profile')
  })

  it('sets user to null on failure', async () => {
    mockFetch.mockRejectedValueOnce(new Error('401'))
    const auth = useAuthStore()
    auth.user = { id: 1, email: 'a@b.com', displayName: null, role: 'user' }

    await auth.fetchProfile()

    expect(auth.user).toBeNull()
  })
})

// ---------------------------------------------------------------------------
// getWsTicket()
// ---------------------------------------------------------------------------
describe('getWsTicket()', () => {
  it('returns the ticket string from the API', async () => {
    mockFetch.mockResolvedValueOnce({ ticket: 'abc-xyz-ticket' })

    const auth = useAuthStore()
    const ticket = await auth.getWsTicket()

    expect(ticket).toBe('abc-xyz-ticket')
    expect(mockFetch).toHaveBeenCalledWith('/api/auth/ws-ticket', { method: 'POST' })
  })
})

// ---------------------------------------------------------------------------
// getters
// ---------------------------------------------------------------------------
describe('isAuthenticated getter', () => {
  it('returns false when user is null', () => {
    const auth = useAuthStore()
    expect(auth.isAuthenticated).toBe(false)
  })

  it('returns true when user is set', () => {
    const auth = useAuthStore()
    auth.user = { id: 1, email: 'a@b.com', displayName: null, role: 'user' }
    expect(auth.isAuthenticated).toBe(true)
  })
})

describe('isAdmin getter', () => {
  it('returns false for non-admin role', () => {
    const auth = useAuthStore()
    auth.user = { id: 1, email: 'a@b.com', displayName: null, role: 'user' }
    expect(auth.isAdmin).toBe(false)
  })

  it('returns true for admin role', () => {
    const auth = useAuthStore()
    auth.user = { id: 1, email: 'a@b.com', displayName: null, role: 'admin' }
    expect(auth.isAdmin).toBe(true)
  })
})