import request from 'supertest';
import app from '../../src/app';
import { pool } from '../../src/db';
import { resetDb, closeDb } from './setup/testDb';

beforeEach(async () => {
  await resetDb();
});

afterAll(async () => {
  await pool.end();
  await closeDb();
});

describe('GET /api/items', () => {
  it('returns an empty array when there are no items', async () => {
    const res = await request(app).get('/api/items');
    expect(res.status).toBe(200);
    expect(res.body).toEqual([]);
  });

  it('returns items with an empty images array when none are attached', async () => {
    await pool.query(
      `INSERT INTO items (name, description, price_cents) VALUES ('Vintage Lamp', 'A one-of-a-kind lamp.', 4500)`
    );
    const res = await request(app).get('/api/items');
    expect(res.status).toBe(200);
    expect(res.body).toHaveLength(1);
    expect(res.body[0]).toMatchObject({
      name: 'Vintage Lamp',
      price_cents: 4500,
      status: 'available',
      images: []
    });
  });

  it('returns 404 for a nonexistent item', async () => {
    const res = await request(app).get('/api/items/99999');
    expect(res.status).toBe(404);
  });
});

describe('demo checkout', () => {
  it('marks an available item as sold', async () => {
    const { rows } = await pool.query(
      `INSERT INTO items (name, price_cents) VALUES ('Test Item', 1000) RETURNING id`
    );
    const itemId = rows[0].id;

    const res = await request(app).post(`/api/checkout/demo/${itemId}/purchase`);
    expect(res.status).toBe(200);
    expect(res.body.status).toBe('sold');

    const check = await request(app).get(`/api/items/${itemId}`);
    expect(check.body.status).toBe('sold');
  });

  it('refuses to sell an item that is already sold', async () => {
    const { rows } = await pool.query(
      `INSERT INTO items (name, price_cents, status) VALUES ('Already Sold', 1000, 'sold') RETURNING id`
    );
    const itemId = rows[0].id;
    const res = await request(app).post(`/api/checkout/demo/${itemId}/purchase`);
    expect(res.status).toBe(409);
  });
});