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 { WelcomeStep1 } from '../WelcomeStep1'
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: null,
    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-1']}>
      <Routes>
        <Route path="/welcome/step-1" element={<WelcomeStep1 />} />
        <Route path="/welcome/step-2" element={<div>step-2</div>} />
        <Route path="/home" element={<div>dashboard</div>} />
      </Routes>
    </MemoryRouter>,
  )
}

describe('WelcomeStep1', () => {
  beforeEach(() => {
    useAuthStore.setState({
      user: makeUser(),
      account: makeAccount(),
      subscription: null,
      token: null,
      isAuthenticated: true,
      // Stub fetchUser so it doesn't try to hit the network in jsdom.
      fetchUser: vi.fn().mockResolvedValue(undefined),
    })
    vi.mocked(onboardingApi.updateStep).mockResolvedValue({
      onboarding_step_completed: 1,
      onboarding_dismissed: false,
    })
    vi.mocked(onboardingApi.dismissRest).mockResolvedValue({
      onboarding_step_completed: null,
      onboarding_dismissed: true,
    })
  })

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

  it('pre-fills the company name from the auth store account', () => {
    renderPage()
    const input = screen.getByTestId('welcome-step-1-company-name') as HTMLInputElement
    expect(input.value).toBe('Acme MSP')
  })

  it('Continue persists data and navigates to /welcome/step-2', async () => {
    const user = userEvent.setup()
    renderPage()

    const teamSize = screen.getByTestId('welcome-step-1-team-size') as HTMLSelectElement
    await user.selectOptions(teamSize, '3-5')
    const role = screen.getByTestId('welcome-step-1-role') as HTMLSelectElement
    await user.selectOptions(role, 'owner')

    await user.click(screen.getByTestId('welcome-step-1-continue'))

    await waitFor(() => {
      expect(onboardingApi.updateStep).toHaveBeenCalledWith({
        step: 1,
        action: 'complete',
        data: {
          company_name: 'Acme MSP',
          team_size_bucket: '3-5',
          role_at_signup: 'owner',
        },
      })
    })

    await waitFor(() => {
      expect(screen.getByText('step-2')).toBeInTheDocument()
    })
  })

  it('Skip this step calls updateStep with action=skip and navigates to /welcome/step-2', async () => {
    const user = userEvent.setup()
    renderPage()

    await user.click(screen.getByTestId('welcome-step-1-skip'))

    await waitFor(() => {
      expect(onboardingApi.updateStep).toHaveBeenCalledWith({
        step: 1,
        action: 'skip',
      })
    })

    await waitFor(() => {
      expect(screen.getByText('step-2')).toBeInTheDocument()
    })
  })

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

    const dismiss = screen.getByTestId('welcome-step-1-dismiss-rest')
    // Sanity check: it's a quiet text link, not a primary button.
    expect(dismiss.className).toMatch(/text-muted-foreground/)
    expect(dismiss.className).toMatch(/hover:underline/)
    expect(dismiss.className).toMatch(/text-xs/)
    expect(dismiss.className).not.toMatch(/bg-primary/)

    await user.click(dismiss)

    await waitFor(() => {
      expect(onboardingApi.dismissRest).toHaveBeenCalled()
    })

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

  it('shows an error when the persist call fails and stays on the page', async () => {
    vi.mocked(onboardingApi.updateStep).mockRejectedValueOnce(
      new Error('boom'),
    )
    const user = userEvent.setup()
    renderPage()

    await user.click(screen.getByTestId('welcome-step-1-continue'))

    await waitFor(() => {
      expect(screen.getByTestId('welcome-step-1-error')).toBeInTheDocument()
    })

    // Should not have navigated.
    expect(screen.queryByText('step-2')).not.toBeInTheDocument()
  })
})