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

vi.mock('next/cache', () => ({ revalidatePath: vi.fn() }))
vi.mock('next/headers', () => ({ cookies: vi.fn().mockResolvedValue({}) }))
vi.mock('iron-session', () => ({
  getIronSession: vi.fn().mockResolvedValue({ userId: 'user-1', isDemo: false }),
}))
vi.mock('@/lib/session', () => ({
  sessionOptions: { cookieName: 'test', password: 'test' },
}))
vi.mock('@/lib/product-access', () => ({
  productAccessFilter: vi.fn().mockReturnValue({}),
}))
vi.mock('@/lib/prisma', () => ({
  prisma: {
    product: { findFirst: vi.fn() },
    user: { update: vi.fn() },
  },
}))

import { prisma } from '@/lib/prisma'
import { getIronSession } from 'iron-session'
import { setActiveProductAction, clearActiveProductAction } from '@/actions/active-product'

const mockPrisma = prisma as unknown as {
  product: { findFirst: ReturnType<typeof vi.fn> }
  user: { update: ReturnType<typeof vi.fn> }
}
const mockGetIronSession = getIronSession as ReturnType<typeof vi.fn>

const PRODUCT = { id: 'product-1', name: 'Test Product', archived: false }

beforeEach(() => {
  vi.clearAllMocks()
  mockGetIronSession.mockResolvedValue({ userId: 'user-1', isDemo: false })
  mockPrisma.product.findFirst.mockResolvedValue(PRODUCT)
  mockPrisma.user.update.mockResolvedValue({})
})

describe('setActiveProductAction', () => {
  it('sets active_product_id for authenticated user', async () => {
    const result = await setActiveProductAction('product-1')
    expect(result).toEqual({ success: true, productId: 'product-1' })
    expect(mockPrisma.user.update).toHaveBeenCalledWith({
      where: { id: 'user-1' },
      data: { active_product_id: 'product-1' },
    })
  })

  it('returns error when not logged in', async () => {
    mockGetIronSession.mockResolvedValue({ userId: undefined, isDemo: false })
    const result = await setActiveProductAction('product-1')
    expect(result).toEqual({ error: 'Niet ingelogd' })
    expect(mockPrisma.user.update).not.toHaveBeenCalled()
  })

  it('returns error for demo user', async () => {
    mockGetIronSession.mockResolvedValue({ userId: 'user-1', isDemo: true })
    const result = await setActiveProductAction('product-1')
    expect(result).toEqual({ error: 'Niet beschikbaar in demo-modus' })
    expect(mockPrisma.user.update).not.toHaveBeenCalled()
  })

  it('returns error when product is archived or inaccessible', async () => {
    mockPrisma.product.findFirst.mockResolvedValue(null)
    const result = await setActiveProductAction('product-1')
    expect(result).toEqual({ error: 'Product niet gevonden of niet toegankelijk' })
    expect(mockPrisma.user.update).not.toHaveBeenCalled()
  })

  it('returns error for empty product id', async () => {
    const result = await setActiveProductAction('')
    expect(result).toEqual({ error: 'Ongeldig product-id' })
    expect(mockPrisma.user.update).not.toHaveBeenCalled()
  })
})

describe('clearActiveProductAction', () => {
  it('clears active_product_id for authenticated user', async () => {
    const result = await clearActiveProductAction()
    expect(result).toEqual({ success: true })
    expect(mockPrisma.user.update).toHaveBeenCalledWith({
      where: { id: 'user-1' },
      data: { active_product_id: null },
    })
  })

  it('returns error when not logged in', async () => {
    mockGetIronSession.mockResolvedValue({ userId: undefined, isDemo: false })
    const result = await clearActiveProductAction()
    expect(result).toEqual({ error: 'Niet ingelogd' })
    expect(mockPrisma.user.update).not.toHaveBeenCalled()
  })

  it('returns error for demo user', async () => {
    mockGetIronSession.mockResolvedValue({ userId: 'user-1', isDemo: true })
    const result = await clearActiveProductAction()
    expect(result).toEqual({ error: 'Niet beschikbaar in demo-modus' })
    expect(mockPrisma.user.update).not.toHaveBeenCalled()
  })
})
