import { PaperclipClient } from '../src/client.js';

const mockFetch = jest.fn();
global.fetch = mockFetch as any;

describe('PaperclipClient', () => {
  let client: PaperclipClient;

  beforeEach(() => {
    process.env.PAPERCLIP_API_URL = 'https://clip.descomplicar.pt/api';
    process.env.PAPERCLIP_API_KEY = 'test_key';
    process.env.PAPERCLIP_COMPANY_ID = 'test-company-id';
    client = new PaperclipClient();
    mockFetch.mockReset();
  });

  test('GET sends correct headers', async () => {
    mockFetch.mockResolvedValueOnce({ ok: true, json: async () => ({ status: 'ok' }) });
    await client.get('/health');
    expect(mockFetch).toHaveBeenCalledWith(
      'https://clip.descomplicar.pt/api/health',
      expect.objectContaining({
        method: 'GET',
        headers: expect.objectContaining({ Authorization: 'Bearer test_key' }),
      }),
    );
  });

  test('companyPath injects company ID', () => {
    expect(client.companyPath('/agents')).toBe('/companies/test-company-id/agents');
  });

  test('POST sends JSON body', async () => {
    mockFetch.mockResolvedValueOnce({ ok: true, json: async () => ({ id: '123' }) });
    await client.post('/companies/test-company-id/issues', { title: 'Test' });
    expect(mockFetch).toHaveBeenCalledWith(
      'https://clip.descomplicar.pt/api/companies/test-company-id/issues',
      expect.objectContaining({
        method: 'POST',
        body: JSON.stringify({ title: 'Test' }),
      }),
    );
  });

  test('handles 401 with clear error', async () => {
    mockFetch.mockResolvedValueOnce({ ok: false, status: 401, statusText: 'Unauthorized', json: async () => ({ error: 'Unauthorized' }) });
    await expect(client.get('/health')).rejects.toThrow('Sem autorização. Verificar PAPERCLIP_API_KEY.');
  });

  test('handles 404 with resource info', async () => {
    mockFetch.mockResolvedValueOnce({ ok: false, status: 404, statusText: 'Not Found', json: async () => ({ error: 'Not found' }) });
    await expect(client.get('/agents/abc')).rejects.toThrow('Recurso não encontrado: /agents/abc');
  });
});