/**
 * 04-rest-api.spec.ts
 *
 * What: Verifies public REST API endpoints from all plugins respond with
 *       valid JSON and expected shapes. Catches broken REST registration,
 *       PHP errors in REST handlers, or missing PR Core dependency.
 * Who triggers it: Playwright chromium project (post-auth setup).
 *       Note: these tests do NOT need auth — they test public endpoints.
 * Dependencies: All plugins active on staging; at least one published peptide.
 *
 * Endpoints tested:
 *   - GET /wp-json/prc/v1/presets          — Reconstitution Calculator presets
 *   - GET /wp-json/peptides/v1/search      — PSA search REST endpoint
 *   - GET /wp-json/peptide-search-ai/v1/compounds — PSA directory endpoint
 *   - GET /wp-json/wp/v2/peptide           — PR Core CPT via WP REST
 */

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

test.describe('REST API — Reconstitution Calculator', () => {
  test('GET /wp-json/prc/v1/presets returns array', async ({ request }) => {
    const res = await request.get('/wp-json/prc/v1/presets');
    expect(res.status()).toBe(200);
    const body = await res.json();
    expect(Array.isArray(body)).toBe(true);
    expect(body.length).toBeGreaterThan(0);
    // Each preset should have at minimum a slug and name
    const first = body[0];
    expect(first).toHaveProperty('slug');
    expect(first).toHaveProperty('name');
  });
});

test.describe('REST API — Peptide Search AI', () => {
  test('GET /wp-json/peptides/v1/search returns valid JSON', async ({ request }) => {
    const res = await request.get('/wp-json/peptides/v1/search?q=BPC');
    // 200 (results found) or 404 (no results) are both acceptable; 500 is not
    expect([200, 404]).toContain(res.status());
    if (res.status() === 200) {
      const body = await res.json();
      expect(body).toHaveProperty('status');
      expect(body).toHaveProperty('results');
    }
  });

  test('GET /wp-json/peptide-search-ai/v1/compounds returns paginated list', async ({ request }) => {
    const res = await request.get('/wp-json/peptide-search-ai/v1/compounds?fields=basic');
    expect(res.status()).toBe(200);
    const body = await res.json();
    // Response should be array or object with data key
    expect(body).toBeDefined();
  });
});

test.describe('REST API — PR Core (CPT registration)', () => {
  test('peptide CPT is registered and appears in WP REST index', async ({ request }) => {
    // Confirmed via live inspection: the peptide CPT does NOT expose via /wp/v2/peptide
    // (not registered with show_in_rest on the default namespace).
    // Instead we verify the CPT exists via the WP REST types endpoint.
    const res = await request.get('/wp-json/wp/v2/types/peptide');
    // 200 = CPT registered; 404 = CPT missing entirely — both are informative