import { test, expect } from '../../../fixtures/auth.fixture.js';

/**
 * TC-B2B – Rahmenverträge (Frame Contracts)
 * Quelle: GitHub Issue #66
 */
test.describe('TC-B2B: Rahmenverträge', () => {
  const baseAddress = {
    street: 'Handelsweg',
    houseNumber: '10',
    postalCode: '20095',
    city: 'Hamburg',
    country: 'DE',
    phone: '+49 40 99999',
  };

  async function createB2bCustomer(request: Parameters<typeof test>[1]['request'], token: string): Promise<string> {
    const res = await request.post('/api/customers', {
      data: { name: `B2B-${Date.now()}`, type: 'B2B', ...baseAddress, paymentDueDays: 30 },
      headers: { Authorization: `Bearer ${token}` },
    });
    const body = await res.json();
    return body.id;
  }

  async function createArticleWithCategory(request: Parameters<typeof test>[1]['request'], token: string): Promise<string> {
    const catRes = await request.post('/api/categories', {
      data: { name: `B2B-Kat-${Date.now()}` },
      headers: { Authorization: `Bearer ${token}` },
    });
    const { id: categoryId } = await catRes.json();
    const artRes = await request.post('/api/articles', {
      data: {
        name: `B2B-Art-${Date.now()}`,
        articleNumber: `B2B-${Date.now()}`,
        categoryId,
        unit: 'KG',
        priceModel: 'FIXED',
        price: 4.5,
      },
      headers: { Authorization: `Bearer ${token}` },
    });
    const { id } = await artRes.json();
    return id;
  }

  test('TC-B2B-01: Rahmenvertrag setzen', async ({ request, adminToken }) => {
    const customerId = await createB2bCustomer(request, adminToken);
    const articleId = await createArticleWithCategory(request, adminToken);

    const res = await request.put(`/api/customers/${customerId}/frame-contract`, {
      data: {
        validFrom: '2026-01-01',
        validUntil: '2026-12-31',
        rhythm: 'WEEKLY',
        lineItems: [{ articleId, agreedPrice: 4.0, agreedQuantity: 10.0, unit: 'KG' }],
      },
      headers: { Authorization: `Bearer ${adminToken}` },
    });
    expect(res.status()).toBe(200);
    const body = await res.json();
    expect(body.frameContract).toBeTruthy();
  });

  test('TC-B2B-02: Rahmenvertrag ohne Positionen wird abgelehnt', async ({ request, adminToken }) => {
    const customerId = await createB2bCustomer(request, adminToken);

    const res = await request.put(`/api/customers/${customerId}/frame-contract`, {
      data: { rhythm: 'WEEKLY', lineItems: [] },
      headers: { Authorization: `Bearer ${adminToken}` },
    });
    expect(res.status()).toBe(400);
  });

  test('TC-B2B-03: Rahmenvertrag entfernen', async ({ request, adminToken }) => {
    const customerId = await createB2bCustomer(request, adminToken);
    const articleId = await createArticleWithCategory(request, adminToken);

    await request.put(`/api/customers/${customerId}/frame-contract`, {
      data: {
        rhythm: 'MONTHLY',
        lineItems: [{ articleId, agreedPrice: 3.0 }],
      },
      headers: { Authorization: `Bearer ${adminToken}` },
    });

    const res = await request.delete(`/api/customers/${customerId}/frame-contract`, {
      headers: { Authorization: `Bearer ${adminToken}` },
    });
    expect(res.status()).toBe(204);
  });
});