import { beforeEach, describe, expect, it, vi } from 'vitest'
import { createEvent, mockSuccessReadBody } from './setup'

vi.mock('../server/utils/auth.js', () => ({
  verifyToken: vi.fn(),
  getUserById: vi.fn(),
  hasAnyRole: vi.fn((user, ...roles) => {
    if (!user) return false
    const userRoles = Array.isArray(user.roles) ? user.roles : (user.role ? [user.role] : [])
    return roles.some(r => userRoles.includes(r))
  })
}))

vi.mock('../server/utils/termine.js', () => ({
  readTermine: vi.fn(),
  saveTermin: vi.fn(),
  deleteTermin: vi.fn()
}))

const authUtils = await import('../server/utils/auth.js')
const termineUtils = await import('../server/utils/termine.js')

import termineGetHandler from '../server/api/termine-manage.get.js'
import terminePostHandler from '../server/api/termine-manage.post.js'
import termineDeleteHandler from '../server/api/termine-manage.delete.js'

describe('Termine-Manage API Endpoints', () => {
  beforeEach(() => {
    vi.clearAllMocks()
  })

  const adminEvent = () => {
    const event = createEvent({ cookies: { auth_token: 'token' } })
    authUtils.verifyToken.mockReturnValue({ id: '1' })
    authUtils.getUserById.mockResolvedValue({ id: '1', roles: ['admin'] })
    authUtils.hasAnyRole.mockReturnValue(true)
    return event
  }

  describe('GET /api/termine-manage', () => {
    it('verlangt Authentifizierung', async () => {
      const event = createEvent()
      await expect(termineGetHandler(event)).rejects.toMatchObject({ statusCode: 401 })
    })

    it('lehnt ungültiges Token ab', async () => {
      const event = createEvent({ cookies: { auth_token: 'bad' } })
      authUtils.verifyToken.mockReturnValue(null)
      await expect(termineGetHandler(event)).rejects.toMatchObject({ statusCode: 401 })
    })

    it('verlangt Admin- oder Vorstand-Rolle', async () => {
      const event = createEvent({ cookies: { auth_token: 'token' } })
      authUtils.verifyToken.mockReturnValue({ id: '1' })
      authUtils.getUserById.mockResolvedValue({ id: '1', roles: ['mitglied'] })
      authUtils.hasAnyRole.mockReturnValue(false)
      await expect(termineGetHandler(event)).rejects.toMatchObject({ statusCode: 403 })
    })

    it('liefert Terminliste', async () => {
      const event = adminEvent()
      termineUtils.readTermine.mockResolvedValue([
        { datum: '2025-06-01', titel: 'Hauptversammlung', kategorie: 'Verein' }
      ])

      const result = await termineGetHandler(event)

      expect(result.success).toBe(true)
      expect(result.termine).toHaveLength(1)
      expect(result.termine[0].titel).toBe('Hauptversammlung')
    })
  })

  describe('POST /api/termine-manage', () => {
    it('verlangt Authentifizierung', async () => {
      const event = createEvent()
      mockSuccessReadBody({})
      await expect(terminePostHandler(event)).rejects.toMatchObject({ statusCode: 401 })
    })

    it('verlangt Admin- oder Vorstand-Rolle', async () => {
      const event = createEvent({ cookies: { auth_token: 'token' } })
      authUtils.verifyToken.mockReturnValue({ id: '1' })
      authUtils.getUserById.mockResolvedValue({ id: '1', roles: ['mitglied'] })
      authUtils.hasAnyRole.mockReturnValue(false)
      mockSuccessReadBody({ datum: '2025-06-01', titel: 'Test' })
      await expect(terminePostHandler(event)).rejects.toMatchObject({ statusCode: 403 })
    })

    it('validiert Pflichtfelder – kein Titel', async () => {
      const event = adminEvent()
      mockSuccessReadBody({ datum: '2025-06-01' })
      await expect(terminePostHandler(event)).rejects.toMatchObject({ statusCode: 400 })
    })

    it('validiert Pflichtfelder – kein Datum', async () => {
      const event = adminEvent()
      mockSuccessReadBody({ titel: 'Training' })
      await expect(terminePostHandler(event)).rejects.toMatchObject({ statusCode: 400 })
    })

    it('speichert Termin erfolgreich', async () => {
      const event = adminEvent()
      termineUtils.saveTermin.mockResolvedValue(undefined)
      mockSuccessReadBody({ datum: '2025-06-01', titel: 'Hauptversammlung', kategorie: 'Verein', uhrzeit: '19:00' })

      const result = await terminePostHandler(event)

      expect(result.success).toBe(true)
      expect(termineUtils.saveTermin).toHaveBeenCalledWith(
        expect.objectContaining({ datum: '2025-06-01', titel: 'Hauptversammlung' })
      )
    })
  })

  describe('DELETE /api/termine-manage', () => {
    it('verlangt Authentifizierung', async () => {
      const event = createEvent()
      await expect(termineDeleteHandler(event)).rejects.toMatchObject({ statusCode: 401 })
    })

    it('verlangt Admin- oder Vorstand-Rolle', async () => {
      const event = createEvent({ cookies: { auth_token: 'token' } })
      authUtils.verifyToken.mockReturnValue({ id: '1' })
      authUtils.getUserById.mockResolvedValue({ id: '1', roles: ['mitglied'] })
      authUtils.hasAnyRole.mockReturnValue(false)
      await expect(termineDeleteHandler(event)).rejects.toMatchObject({ statusCode: 403 })
    })

    it('validiert Pflichtfelder – datum und titel fehlen', async () => {
      const event = adminEvent()
      // __query ist leer → keine datum/titel
      await expect(termineDeleteHandler(event)).rejects.toMatchObject({ statusCode: 400 })
    })

    it('löscht Termin erfolgreich', async () => {
      const event = adminEvent()
      event.__query = { datum: '2025-06-01', titel: 'Hauptversammlung', kategorie: 'Verein' }
      termineUtils.deleteTermin.mockResolvedValue(undefined)

      const result = await termineDeleteHandler(event)

      expect(result.success).toBe(true)
      expect(termineUtils.deleteTermin).toHaveBeenCalledWith(
        expect.objectContaining({ datum: '2025-06-01', titel: 'Hauptversammlung' })
      )
    })
  })
})