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

const states = new Map<string, { value: unknown }>()

function activeSession() {
  return {
    accessToken: 'access-token',
    refreshToken: 'refresh-token',
    expiresAt: Date.now() + 600_000,
    user: {
      id: 'user-123',
      email: 'old-name@example.com',
      user_metadata: { display_name: 'Old Name' },
    },
  }
}

describe('useDngAuth profile updates', () => {
  beforeEach(() => {
    states.clear()
    vi.restoreAllMocks()
    vi.stubGlobal('useRuntimeConfig', () => ({
      public: {
        supabaseUrl: 'https://supabase.example',
        supabaseAnonKey: 'anon-key',
      },
    }))
    vi.stubGlobal('useState', (key: string, factory: () => unknown) => {
      if (!states.has(key)) states.set(key, { value: factory() })
      return states.get(key)
    })
  })

  it('updates both the public profile and authenticated user metadata', async () => {
    const fetchMock = vi.fn()
      .mockResolvedValueOnce(undefined)
      .mockResolvedValueOnce({
        id: 'user-123',
        email: 'old-name@example.com',
        user_metadata: { display_name: 'New Name' },
      })
    vi.stubGlobal('$fetch', fetchMock)

    const auth = useDngAuth()
    auth.session.value = activeSession()

    await auth.updateProfile('  New Name  ')

    expect(fetchMock).toHaveBeenNthCalledWith(1, 'https://supabase.example/rest/v1/profiles?id=eq.user-123', expect.objectContaining({
      method: 'PATCH',
      body: { display_name: 'New Name' },
    }))
    expect(fetchMock).toHaveBeenNthCalledWith(2, 'https://supabase.example/auth/v1/user', expect.objectContaining({
      method: 'PUT',
      body: { data: { display_name: 'New Name' } },
    }))
    expect(auth.session.value?.user.user_metadata?.display_name).toBe('New Name')
  })

  it('rolls the public profile back when the auth metadata update fails', async () => {
    const fetchMock = vi.fn()
      .mockResolvedValueOnce(undefined)
      .mockRejectedValueOnce(new Error('Auth update failed'))
      .mockResolvedValueOnce(undefined)
    vi.stubGlobal('$fetch', fetchMock)

    const auth = useDngAuth()
    auth.session.value = activeSession()

    await expect(auth.updateProfile('New Name')).rejects.toThrow('Auth update failed')
    expect(fetchMock).toHaveBeenNthCalledWith(3, 'https://supabase.example/rest/v1/profiles?id=eq.user-123', expect.objectContaining({
      body: { display_name: 'Old Name' },
    }))
    expect(auth.session.value?.user.user_metadata?.display_name).toBe('Old Name')
  })

  it('rejects invalid display names before making a request', async () => {
    const fetchMock = vi.fn()
    vi.stubGlobal('$fetch', fetchMock)

    const auth = useDngAuth()
    auth.session.value = activeSession()

    await expect(auth.updateProfile(' ')).rejects.toThrow('between 2 and 80 characters')
    expect(fetchMock).not.toHaveBeenCalled()
  })
})