import { describe, it, expect, vi, beforeEach } from 'vitest'
import { createMockSupabase } from '@/tests/helpers'

vi.mock('@/lib/company/context', () => ({
  getActiveCompanyId: vi.fn(),
}))

import { requireWritePermission, getCompanyRole } from '../require-write'
import { getActiveCompanyId } from '@/lib/company/context'

describe('requireWritePermission', () => {
  beforeEach(() => {
    vi.clearAllMocks()
  })

  it('returns ok for owner', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: { role: 'owner' } })

    const result = await requireWritePermission(supabase, 'user-1')
    expect(result.ok).toBe(true)
  })

  it('returns ok for admin', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: { role: 'admin' } })

    const result = await requireWritePermission(supabase, 'user-1')
    expect(result.ok).toBe(true)
  })

  it('returns ok for member', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: { role: 'member' } })

    const result = await requireWritePermission(supabase, 'user-1')
    expect(result.ok).toBe(true)
  })

  it('returns 403 for viewer', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: { role: 'viewer' } })

    const result = await requireWritePermission(supabase, 'user-1')
    expect(result.ok).toBe(false)
    if (!result.ok) {
      expect(result.response.status).toBe(403)
      const body = await result.response.json()
      expect(body.error).toContain('läsbehörighet')
    }
  })

  it('returns 403 when user has no membership', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: null })

    const result = await requireWritePermission(supabase, 'user-1')
    expect(result.ok).toBe(false)
    if (!result.ok) {
      expect(result.response.status).toBe(403)
    }
  })

  it('returns 403 when there is no active company', async () => {
    const { supabase } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue(null)

    const result = await requireWritePermission(supabase, 'user-1')
    expect(result.ok).toBe(false)
    if (!result.ok) {
      expect(result.response.status).toBe(403)
      const body = await result.response.json()
      expect(body.error).toContain('aktivt företag')
    }
  })
})

describe('requireWritePermission with a known route context', () => {
  beforeEach(() => {
    vi.clearAllMocks()
  })

  it('skips the active-company resolution when companyId is known', async () => {
    const { supabase, mockResult } = createMockSupabase()
    mockResult({ data: { role: 'member' } })

    const result = await requireWritePermission(supabase, 'user-1', { companyId: 'company-9' })
    expect(result.ok).toBe(true)
    expect(getActiveCompanyId).not.toHaveBeenCalled()
    expect(supabase.from).toHaveBeenCalledTimes(1)
    expect(supabase.from).toHaveBeenCalledWith('company_members')
  })

  it('skips the membership select when the role is known too', async () => {
    const { supabase } = createMockSupabase()

    const result = await requireWritePermission(supabase, 'user-1', {
      companyId: 'company-9',
      role: 'admin',
    })
    expect(result.ok).toBe(true)
    expect(getActiveCompanyId).not.toHaveBeenCalled()
    expect(supabase.from).not.toHaveBeenCalled()
  })

  it('still rejects a known viewer role with 403', async () => {
    const { supabase } = createMockSupabase()

    const result = await requireWritePermission(supabase, 'user-1', {
      companyId: 'company-9',
      role: 'viewer',
    })
    expect(result.ok).toBe(false)
    if (!result.ok) expect(result.response.status).toBe(403)
    expect(supabase.from).not.toHaveBeenCalled()
  })

  it('a known company with no membership row is rejected, not trusted', async () => {
    const { supabase, mockResult } = createMockSupabase()
    mockResult({ data: null })

    const result = await requireWritePermission(supabase, 'user-1', { companyId: 'company-9' })
    expect(result.ok).toBe(false)
    if (!result.ok) expect(result.response.status).toBe(403)
  })

  it('falls back to resolution when no context is passed (legacy callers)', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: { role: 'owner' } })

    const result = await requireWritePermission(supabase, 'user-1', undefined)
    expect(result.ok).toBe(true)
    expect(getActiveCompanyId).toHaveBeenCalledTimes(1)
  })
})

describe('getCompanyRole', () => {
  beforeEach(() => {
    vi.clearAllMocks()
  })

  it('returns role and companyId for owner', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: { role: 'owner' } })

    const result = await getCompanyRole(supabase, 'user-1')
    expect(result.ok).toBe(true)
    if (result.ok) {
      expect(result.role).toBe('owner')
      expect(result.companyId).toBe('company-1')
    }
  })

  it('returns role for viewer (does not block)', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: { role: 'viewer' } })

    const result = await getCompanyRole(supabase, 'user-1')
    expect(result.ok).toBe(true)
    if (result.ok) {
      expect(result.role).toBe('viewer')
      expect(result.companyId).toBe('company-1')
    }
  })

  it('returns 403 when user has no membership', async () => {
    const { supabase, mockResult } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue('company-1')
    mockResult({ data: null })

    const result = await getCompanyRole(supabase, 'user-1')
    expect(result.ok).toBe(false)
    if (!result.ok) {
      expect(result.response.status).toBe(403)
    }
  })

  it('returns 403 when there is no active company', async () => {
    const { supabase } = createMockSupabase()
    vi.mocked(getActiveCompanyId).mockResolvedValue(null)

    const result = await getCompanyRole(supabase, 'user-1')
    expect(result.ok).toBe(false)
    if (!result.ok) {
      expect(result.response.status).toBe(403)
      const body = await result.response.json()
      expect(body.error).toContain('aktivt företag')
    }
  })
})