import { test, expect } from '@playwright/test';

test.describe('Grok API Diagnostic (Backend Only)', () => {

  test('backend should successfully call xAI Grok and return a response', async ({ request }) => {
    test.setTimeout(120000); // Grok can be slow

    const payload = {
      message: "Plan a short day trip from Milton Keynes to Telford in a Model Y. Include one Supercharger stop.",
      vehicle: { name: "Model Y Long Range", rangeKm: 514 },
      itinerary: null,
      history: []
    };

    const response = await request.post('http://localhost:3000/api/chat', {
      data: payload,
      headers: { 'Content-Type': 'application/json' }
    });

    expect(response.ok()).toBeTruthy();

    const body = await response.json();

    console.log('[Diagnostic] Grok reply length:', body.reply?.length);
    console.log('[Diagnostic] Has itinerary update:', !!body.itinerary);

    expect(body.reply).toBeDefined();
    expect(body.reply.length).toBeGreaterThan(50);

    // It should NOT be the generic error message
    expect(body.reply).not.toContain('having trouble reaching Grok');

    // If it produced an itinerary, validate basic shape
    if (body.itinerary) {
      expect(body.itinerary.days).toBeDefined();
      expect(Array.isArray(body.itinerary.days)).toBe(true);
      expect(body.itinerary.days.length).toBeGreaterThan(0);
      console.log('[Diagnostic] Itinerary days:', body.itinerary.days.length);
    }

    console.log('✅ Backend successfully called real Grok!');
  });

});