import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest'
import { render, screen, waitFor } from '@testing-library/react'
import userEvent from '@testing-library/user-event'
import { MemoryRouter, Route, Routes } from 'react-router-dom'

import { WelcomeStep2 } from '../WelcomeStep2'
import { useAuthStore } from '@/store/authStore'
import { onboardingApi } from '@/api/onboarding'
import type { Account, User } from '@/types'

vi.mock('@/api/onboarding', async () => {
  const actual = await vi.importActual<typeof import('@/api/onboarding')>(
    '@/api/onboarding',
  )
  return {
    ...actual,
    onboardingApi: {
      ...actual.onboardingApi,
      updateStep: vi.fn(),
      dismissRest: vi.fn(),
    },
  }
})

function makeUser(overrides: Partial<User> = {}): User {
  return {
    id: 'user-1',
    email: 'test@example.com',
    name: 'Test User',
    role: 'engineer',
    is_super_admin: false,
    is_active: true,
    must_change_password: false,
    account_id: 'acct-1',
    account_role: 'owner',
    team_id: null,
    created_at: '2026-05-01T00:00:00Z',
    last_login: null,
    phone: null,
    job_title: null,
    timezone: 'UTC',
    avatar_url: null,
    email_verified_at: null,
    onboarding_step_completed: 1,
    onboarding_dismissed: false,
    ...overrides,
  }
}

function makeAccount(overrides: Partial<Account> = {}): Account {
  return {
    id: 'acct-1',
    name: 'Acme MSP',
    display_code: 'ACME',
    owner_id: 'user-1',
    created_at: '2026-05-01T00:00:00Z',
    updated_at: '2026-05-01T00:00:00Z',
    ...overrides,
  }
}

function renderPage() {
  return render(
    <MemoryRouter initialEntries={['/welcome/step-2']}>
      <Routes>
        <Route path="/welcome/step-2" element={<WelcomeStep2 />} />
        <Route path="/welcome/step-3" element={<div>step-3</div>} />
        <Route path="/account/integrations" element={<div>integrations</div>} />
        <Route path="/" element={<div>dashboard</div>} />
      </Routes>
    </MemoryRouter>,
  )
}

describe('WelcomeStep2', () => {
  beforeEach(() => {
    useAuthStore.setState({
      user: makeUser(),
      account: makeAccount(),
      subscription: null,
      token: null,
      isAuthenticated: true,
      fetchUser: vi.fn().mockResolvedValue(undefined),
    })
    vi.mocked(onboardingApi.updateStep).mockResolvedValue({
      onboarding_step_completed: 2,
      onboarding_dismissed: false,
    })
    vi.mocked(onboardingApi.dismissRest).mockResolvedValue({
      onboarding_step_completed: null,
      onboarding_dismissed: true,
    })
  })

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

  it('selecting PSA persists primary_psa', async () => {
    const user = userEvent.setup()
    renderPage()

    await user.click(screen.getByTestId('welcome-step-2-tile-connectwise'))
    // Selecting a real PSA reveals the inline "Connect now" link.
    expect(screen.getByTestId('welcome-step-2-connect-now')).toBeInTheDocument()

    await user.click(screen.getByTestId('welcome-step-2-continue'))

    await waitFor(() => {
      expect(onboardingApi.updateStep).toHaveBeenCalledWith({
        step: 2,
        action: 'complete',
        data: { primary_psa: 'connectwise' },
      })
    })

    await waitFor(() => {
      expect(screen.getByText('step-3')).toBeInTheDocument()
    })
  })

  it('Skip advances without writing primary_psa', async () => {
    const user = userEvent.setup()
    renderPage()

    await user.click(screen.getByTestId('welcome-step-2-skip'))

    await waitFor(() => {
      expect(onboardingApi.updateStep).toHaveBeenCalledWith({
        step: 2,
        action: 'skip',
      })
    })

    // Confirm no `data` key on the call (skip doesn't persist primary_psa).
    const call = vi.mocked(onboardingApi.updateStep).mock.calls[0]?.[0]
    expect(call?.data).toBeUndefined()

    await waitFor(() => {
      expect(screen.getByText('step-3')).toBeInTheDocument()
    })
  })

  it('"No PSA yet" tile does NOT show the Connect now link', async () => {
    const user = userEvent.setup()
    renderPage()

    await user.click(screen.getByTestId('welcome-step-2-tile-none'))
    expect(screen.queryByTestId('welcome-step-2-connect-now')).not.toBeInTheDocument()
  })

  it('default action is Continue (not Connect now)', () => {
    renderPage()
    // Continue is rendered as a primary button.
    const continueBtn = screen.getByTestId('welcome-step-2-continue')
    expect(continueBtn.className).toMatch(/bg-primary/)
    // Connect-now is hidden until a real PSA is picked.
    expect(screen.queryByTestId('welcome-step-2-connect-now')).not.toBeInTheDocument()
  })

  it('Skip-the-rest dismisses and navigates to /', async () => {
    const user = userEvent.setup()
    renderPage()

    await user.click(screen.getByTestId('welcome-step-2-dismiss-rest'))

    await waitFor(() => {
      expect(onboardingApi.dismissRest).toHaveBeenCalled()
    })
    await waitFor(() => {
      expect(screen.getByText('dashboard')).toBeInTheDocument()
    })
  })
})