const {
  setTimeZoneOffsetInMinutes,
  expectDate,
  scrollWheel,
  expectDateString,
  setMaximumDate,
  setDate,
  init,
} = require('../utils');

const scrollMinuteWheel = () => scrollWheel(2, 1);

// I haven't found a way to change the timezone on the emulator to be able to run these tests.
// Until possible, run these tests locally when needed with Europe/Stockholm timezone.
describe.skip('Timezone offset', () => {
  beforeAll(async () => {
    await init();
    await element(by.text('Advanced')).tap();
  });

  it('undefined (default)', async () => {
    await setTimeZoneOffsetInMinutes(undefined);
    await scrollMinuteWheel();
    await expectDate('2000-01-01 00:01:00');
    await expectDateString('Sat Jan 11201 AM ');
  });

  it('0', async () => {
    await setTimeZoneOffsetInMinutes(0);
    await scrollMinuteWheel();
    await expectDate('2000-01-01 00:01:00');
    await expectDateString('Fri Dec 311101 PM ');
  });

  it('180', async () => {
    await setTimeZoneOffsetInMinutes(180);
    await scrollMinuteWheel();
    await expectDate('2000-01-01 00:01:00');
    await expectDateString('Sat Jan 1201 AM ');
  });

  it('-180', async () => {
    await setTimeZoneOffsetInMinutes(-180);
    await scrollMinuteWheel();
    await expectDate('2000-01-01 00:01:00');
    await expectDateString('Fri Dec 31801 PM ');
  });

  describe('daylight saving', () => {
    const firstOfJuly = new Date(2000, 6, 1, 0, 0);
    const firstOfJune = new Date(2000, 5, 1, 0, 0);

    beforeAll(async () => {
      await setMaximumDate(firstOfJuly);
      await setDate(firstOfJune);
    });

    it('undefined', async () => {
      await setDate(firstOfJune);
      await setTimeZoneOffsetInMinutes(undefined);
      await scrollMinuteWheel();
      await expectDate('2000-06-01 00:01:00');
      await expectDateString('Thu Jun 11201 AM ');
    });

    it('0', async () => {
      await setDate(firstOfJune);
      await setTimeZoneOffsetInMinutes(0);
      await scrollMinuteWheel();
      await expectDate('2000-06-01 00:01:00');
      await expectDateString('Wed May 311001 PM ');
    });

    it('180', async () => {
      await setDate(firstOfJune);
      await setTimeZoneOffsetInMinutes(180);
      await scrollMinuteWheel();
      await expectDate('2000-06-01 00:01:00');
      await expectDateString('Thu Jun 1101 AM ');
    });
  });
});