import Page from '../Page';
import PageUpdateHistory from './PageUpdateHistory';

describe('PageUpdateHistory trigger', () => {
  test('creating a page should create a page update history', async () => {
    const historyCount = await PageUpdateHistory.count();
    expect(historyCount).toBe(0);

    const page = await Page.create({
      url: 'google.com',
      firebaseId: 'page-id',
      price: 10,
      retailer: 'amazon',
    }).save({ listeners: false });

    const historyCountAfterSave = await PageUpdateHistory.count();
    expect(historyCountAfterSave).toBe(1);

    const history = await PageUpdateHistory.findOneOrFail({ where: { page } });
    expect(history.price).toBe(page.price);
  });

  test('update the price of a page should create a page update history', async () => {
    const page = await Page.create({
      url: 'google.com',
      firebaseId: 'page-id',
      price: 10,
      retailer: 'amazon',
    }).save({ listeners: false });

    page.price = 20;
    await page.save();

    const historyCount = await PageUpdateHistory.count();
    expect(historyCount).toBe(2);

    const history = await PageUpdateHistory.find({
      where: { page },
    });

    expect(history[0].price).toBe(10);
    expect(history[1].price).toBe(20);
  });

  test('updating anything else besides price should not create a page update history', async () => {
    const page = await Page.create({
      url: 'google.com',
      firebaseId: 'page-id',
      price: 10,
      retailer: 'amazon',
    }).save({ listeners: false });

    page.retailer = 'google';
    await page.save();

    const historyCount = await PageUpdateHistory.count();
    expect(historyCount).toBe(1);
  });
});