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

vi.mock('../../lib/request-context.js', () => ({
  getUserId: vi.fn(() => 'user_1'),
  getRequestProductId: vi.fn(() => 'notelett'),
}));
vi.mock('../../lib/feature-flags.js', () => ({
  isFeatureEnabled: vi.fn(() => true),
}));
vi.mock('../../lib/telemetry.js', () => ({ trackEvent: vi.fn() }));
vi.mock('../../lib/product-config.js', () => ({ PRODUCT_ID: 'notelett' }));
vi.mock('../../lib/config.js', () => ({ config: {} }));
vi.mock('../../lib/embeddings.js', () => ({
  stripHtmlForEmbedding: vi.fn((s: string) => s.replace(/<[^>]*>/g, ' ').trim()),
}));

type NoteDoc = { id: string; userId?: string; productId?: string; title?: string; body?: string };
type CollabDoc = Record<string, unknown>;

const getNoteMock = vi.fn<(id: string, userId: string) => Promise<NoteDoc | null>>();
vi.mock('../notes/repository.js', () => ({
  getNote: (...args: [string, string]) => getNoteMock(...args),
}));

const createCollaboratorMock = vi.fn<(doc: CollabDoc) => Promise<CollabDoc>>();
const listCollaboratorsForNoteMock = vi.fn<(noteId: string, productId: string) => Promise<CollabDoc[]>>();
const listSharedWithMeMock = vi.fn<(userId: string, productId: string) => Promise<CollabDoc[]>>();
const findCollaboratorMock = vi.fn<(noteId: string, userId: string, productId: string) => Promise<CollabDoc | null>>();
const deleteCollaboratorMock = vi.fn<(id: string, partitionKey: string) => Promise<void>>();
vi.mock('./repository.js', () => ({
  createCollaborator: (...args: [CollabDoc]) => createCollaboratorMock(...args),
  listCollaboratorsForNote: (...args: [string, string]) => listCollaboratorsForNoteMock(...args),
  listSharedWithMe: (...args: [string, string]) => listSharedWithMeMock(...args),
  findCollaborator: (...args: [string, string, string]) => findCollaboratorMock(...args),
  deleteCollaborator: (...args: [string, string]) => deleteCollaboratorMock(...args),
}));

import { buildTestApp } from '../../test-helpers.js';
import { noteCollaboratorRoutes } from './routes.js';

async function buildApp() {
  return buildTestApp(noteCollaboratorRoutes);
}

describe('note-collaborators routes', () => {
  beforeEach(() => {
    vi.clearAllMocks();
  });

  describe('POST /notes/:id/share-with-user', () => {
    it('shares a note with another user', async () => {
      getNoteMock.mockResolvedValueOnce({ id: 'n1', userId: 'user_1', productId: 'notelett' });
      findCollaboratorMock.mockResolvedValueOnce(null);

      const app = await buildApp();
      const res = await app.inject({
        method: 'POST',
        url: '/api/notes/n1/share-with-user',
        payload: { workspaceId: 'ws-1', sharedWithUserId: 'user_2', permission: 'view' },
      });

      expect(res.statusCode).toBe(201);
      expect(createCollaboratorMock).toHaveBeenCalledOnce();
    });

    it('rejects sharing with yourself', async () => {
      const app = await buildApp();
      const res = await app.inject({
        method: 'POST',
        url: '/api/notes/n1/share-with-user',
        payload: { workspaceId: 'ws-1', sharedWithUserId: 'user_1', permission: 'view' },
      });

      expect(res.statusCode).toBe(400);
    });

    it('rejects duplicate share', async () => {
      getNoteMock.mockResolvedValueOnce({ id: 'n1', userId: 'user_1', productId: 'notelett' });
      findCollaboratorMock.mockResolvedValueOnce({ id: 'existing' });

      const app = await buildApp();
      const res = await app.inject({
        method: 'POST',
        url: '/api/notes/n1/share-with-user',
        payload: { workspaceId: 'ws-1', sharedWithUserId: 'user_2', permission: 'view' },
      });

      expect(res.statusCode).toBe(400);
    });
  });

  describe('GET /notes/:id/collaborators', () => {
    it('lists collaborators', async () => {
      listCollaboratorsForNoteMock.mockResolvedValueOnce([
        { id: 'c1', sharedWithUserId: 'user_2', permission: 'view' },
      ]);
      const app = await buildApp();
      const res = await app.inject({ method: 'GET', url: '/api/notes/n1/collaborators' });

      expect(res.statusCode).toBe(200);
      expect(res.json().items).toHaveLength(1);
    });
  });

  describe('GET /shared-with-me', () => {
    it('lists notes shared with current user', async () => {
      listSharedWithMeMock.mockResolvedValueOnce([
        { id: 'c1', noteId: 'n1', sharedWithUserId: 'user_1' },
      ]);
      const app = await buildApp();
      const res = await app.inject({ method: 'GET', url: '/api/shared-with-me' });

      expect(res.statusCode).toBe(200);
      expect(res.json().items).toHaveLength(1);
    });
  });

  describe('DELETE /notes/:noteId/collaborators/:userId', () => {
    it('removes a collaborator', async () => {
      findCollaboratorMock.mockResolvedValueOnce({
        id: 'c1', sharedByUserId: 'user_1', sharedWithUserId: 'user_2',
      });
      const app = await buildApp();
      const res = await app.inject({
        method: 'DELETE',
        url: '/api/notes/n1/collaborators/user_2',
      });

      expect(res.statusCode).toBe(204);
      expect(deleteCollaboratorMock).toHaveBeenCalledOnce();
    });

    it('returns 404 for missing collaborator', async () => {
      findCollaboratorMock.mockResolvedValueOnce(null);
      const app = await buildApp();
      const res = await app.inject({
        method: 'DELETE',
        url: '/api/notes/n1/collaborators/user_2',
      });

      expect(res.statusCode).toBe(404);
    });
  });

  describe('POST /notes/:id/export-text', () => {
    it('exports note as text formats', async () => {
      getNoteMock.mockResolvedValueOnce({
        id: 'n1', userId: 'user_1', productId: 'notelett',
        title: 'Test Note', body: '<p>Hello world</p>',
      });
      const app = await buildApp();
      const res = await app.inject({
        method: 'POST',
        url: '/api/notes/n1/export-text',
        payload: { workspaceId: 'ws-1' },
      });

      expect(res.statusCode).toBe(200);
      const body = res.json();
      expect(body.title).toBe('Test Note');
      expect(body.plaintext).toBeDefined();
      expect(body.markdown).toBeDefined();
      expect(body.html).toBe('<p>Hello world</p>');
    });

    it('returns 404 for missing note', async () => {
      getNoteMock.mockResolvedValueOnce(null);
      const app = await buildApp();
      const res = await app.inject({
        method: 'POST',
        url: '/api/notes/n1/export-text',
        payload: { workspaceId: 'ws-1' },
      });

      expect(res.statusCode).toBe(404);
    });
  });

  describe('GET /notes/:id/deep-link', () => {
    it('returns deep link URLs', async () => {
      getNoteMock.mockResolvedValueOnce({ id: 'n1', productId: 'notelett' });
      const app = await buildApp();
      const res = await app.inject({
        method: 'GET',
        url: '/api/notes/n1/deep-link?workspaceId=ws-1',
      });

      expect(res.statusCode).toBe(200);
      const body = res.json();
      expect(body.web).toContain('/notes/n1');
      expect(body.mobile).toBe('notelett://note/n1');
    });

    it('requires workspaceId query param', async () => {
      const app = await buildApp();
      const res = await app.inject({ method: 'GET', url: '/api/notes/n1/deep-link' });

      expect(res.statusCode).toBe(400);
    });
  });
});