import {
  formatDateTimeTZ,
  formatDateTZ,
  getIsoWeek,
  addMonths,
  addHours,
  addMinutes,
  differentMonth,
  differentSecond,
  differentMin,
  getHourRange,
} from './date.util';

describe('formatDateTimeTZ', () => {
  it('should format date with timezone', () => {
    const date = new Date('2022-01-01T00:00:00Z');
    const timezone = 'America/New_York';
    const formattedDate = formatDateTimeTZ(date, timezone);
    expect(formattedDate).toBe('31-12-2021 07:00:00 -05:00');
  });
});

describe('formatDateTZ', () => {
  it('should format date with timezone', () => {
    const date = new Date('2022-01-01T00:00:00Z');
    const timezone = 'America/New_York';
    const formattedDate = formatDateTZ(date, timezone);
    expect(formattedDate).toBe('2021-12-31');
  });
});

describe('getIsoWeek', () => {
  it('should return the ISO week and year', () => {
    const { year } = getIsoWeek();
    const currentYear = new Date().getFullYear();
    expect(year).toBe(currentYear);
  });
});

describe('addMonths', () => {
  it('should add specified number of months to the date', () => {
    const date = new Date('2022-01-01T00:00:00Z');
    const months = 3;
    const newDate = addMonths(date, months);
    const expectedDate = new Date('2022-04-01T00:00:00Z');
    expect(newDate).toEqual(expectedDate);
  });
});

describe('addHours', () => {
  it('should add specified number of hours to the date', () => {
    const date = new Date('2022-01-01T00:00:00Z');
    const hours = 2;
    const newDate = addHours(date, hours);
    const expectedDate = new Date('2022-01-01T02:00:00Z');
    expect(newDate).toEqual(expectedDate);
  });
});

describe('addMinutes', () => {
  it('should add specified number of minutes to the date', () => {
    const date = new Date('2022-01-01T00:00:00Z');
    const minutes = 30;
    const newDate = addMinutes(date, minutes);
    const expectedDate = new Date('2022-01-01T00:30:00Z');
    expect(newDate).toEqual(expectedDate);
  });
});

describe('differentMonth', () => {
  it('should return the difference in months between two dates', () => {
    const date1 = new Date('2022-01-01T00:00:00Z');
    const date2 = new Date('2022-04-01T00:00:00Z');
    const difference = differentMonth(date2, date1);
    expect(difference).toBe(3);
  });
});

describe('differentSecond', () => {
  it('should return the difference in seconds between two dates', () => {
    const date1 = new Date('2022-01-01T00:00:00Z');
    const date2 = new Date('2022-01-01T00:00:10Z');
    const difference = differentSecond(date2, date1);
    expect(difference).toBe(10);
  });
});

describe('differentMin', () => {
  it('should return the difference in minutes between two dates', () => {
    const date1 = new Date('2022-01-01T00:00:00Z');
    const date2 = new Date('2022-01-01T00:10:00Z');
    const difference = differentMin(date2, date1);
    expect(difference).toBe(10);
  });
});

describe('getHourRange', () => {
  it('should return the range of hours for the given date', () => {
    const date = new Date('2022-01-01T12:30:00Z');
    const { begin, end } = getHourRange(date);
    const expectedBegin = new Date('2022-01-01T12:00:00Z');
    const expectedEnd = new Date('2022-01-01T12:59:59.999Z');
    expect(begin).toEqual(expectedBegin);
    expect(end).toEqual(expectedEnd);
  });
});