import moment from 'moment'
import {DateUtils} from 'nylas-exports'


describe('DateUtils', function dateUtils() {
  describe('nextWeek', () => {
    it('returns tomorrow if now is sunday', () => {
      const sunday = moment("03-06-2016", "MM-DD-YYYY")
      const nextWeek = DateUtils.nextWeek(sunday)
      expect(nextWeek.format('MM-DD-YYYY')).toEqual('03-07-2016')
    });

    it('returns next monday if now is monday', () => {
      const monday = moment("03-07-2016", "MM-DD-YYYY")
      const nextWeek = DateUtils.nextWeek(monday)
      expect(nextWeek.format('MM-DD-YYYY')).toEqual('03-14-2016')
    });

    it('returns next monday', () => {
      const saturday = moment("03-05-2016", "MM-DD-YYYY")
      const nextWeek = DateUtils.nextWeek(saturday)
      expect(nextWeek.format('MM-DD-YYYY')).toEqual('03-07-2016')
    });
  });

  describe('thisWeekend', () => {
    it('returns tomorrow if now is friday', () => {
      const friday = moment("03-04-2016", "MM-DD-YYYY")
      const thisWeekend = DateUtils.thisWeekend(friday)
      expect(thisWeekend.format('MM-DD-YYYY')).toEqual('03-05-2016')
    });

    it('returns next saturday if now is saturday', () => {
      const saturday = moment("03-05-2016", "MM-DD-YYYY")
      const thisWeekend = DateUtils.thisWeekend(saturday)
      expect(thisWeekend.format('MM-DD-YYYY')).toEqual('03-12-2016')
    });

    it('returns next saturday', () => {
      const sunday = moment("03-06-2016", "MM-DD-YYYY")
      const thisWeekend = DateUtils.thisWeekend(sunday)
      expect(thisWeekend.format('MM-DD-YYYY')).toEqual('03-12-2016')
    });
  });

  describe('getTimeFormat: 12-hour clock', () => {
    beforeEach(() => {
      spyOn(NylasEnv.config, 'get').andReturn(false)
    });

    it('displays the time format for a 12-hour clock', () => {
      const time = DateUtils.getTimeFormat(null)
      expect(time).toBe('h:mm a')
    });

    it('displays the time format for a 12-hour clock with timezone', () => {
      const opts = { timeZone: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('h:mm a z')
    });

    it('displays the time format for a 12-hour clock with seconds', () => {
      const opts = { seconds: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('h:mm:ss a')
    });

    it('displays the time format for a 12-hour clock with seconds and timezone', () => {
      const opts = { seconds: true, timeZone: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('h:mm:ss a z')
    });

    it('displays the time format for a 12-hour clock in uppercase', () => {
      const opts = { upperCase: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('h:mm A')
    });

    it('displays the time format for a 12-hour clock in uppercase with seconds', () => {
      const opts = { upperCase: true, seconds: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('h:mm:ss A')
    });

    it('displays the time format for a 12-hour clock in uppercase with timezone', () => {
      const opts = { upperCase: true, timeZone: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('h:mm A z')
    });

    it('displays the time format for a 12-hour clock in uppercase with seconds and timezone', () => {
      const opts = { upperCase: true, seconds: true, timeZone: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('h:mm:ss A z')
    });
  });

  describe('getTimeFormat: 24-hour clock', () => {
    beforeEach(() => {
      spyOn(NylasEnv.config, 'get').andReturn(true)
    });

    it('displays the time format for a 24-hour clock', () => {
      const time = DateUtils.getTimeFormat(null)
      expect(time).toBe('HH:mm')
    });

    it('displays the time format for a 24-hour clock with timezone', () => {
      const opts = { timeZone: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('HH:mm z')
    });

    it('displays the time format for a 24-hour clock with seconds', () => {
      const opts = { seconds: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('HH:mm:ss')
    });

    it('displays the time format for a 24-hour clock with seconds and timezone', () => {
      const opts = { seconds: true, timeZone: true }
      const time = DateUtils.getTimeFormat(opts)
      expect(time).toBe('HH:mm:ss z')
    });
  });

  describe('mediumTimeString: 12-hour time', () => {
    beforeEach(() => {
      spyOn(NylasEnv.config, 'get').andReturn(false)
    });

    it('displays a date and time', () => {
      const datestring = DateUtils.mediumTimeString('1982-10-24 22:45')
      expect(datestring).toBe('October 24, 1982, 10:45 PM')
    });
  });

  describe('mediumTimeString: 24-hour time', () => {
    beforeEach(() => {
      spyOn(NylasEnv.config, 'get').andReturn(true)
    });

    it('displays a date and time', () => {
      const datestring = DateUtils.mediumTimeString('1982-10-24 22:45')
      expect(datestring).toBe('October 24, 1982, 22:45')
    });
  });

  describe('fullTimeString: 12-hour time', () => {
    beforeEach(() => {
      spyOn(NylasEnv.config, 'get').andReturn(false)
      self.tz = moment.tz(moment.tz.guess()).zoneAbbr()
    });

    it('displays a date and time', () => {
      const datestring = DateUtils.fullTimeString('1982-10-24 22:45')
      expect(datestring).toBe(`Sunday, October 24th 1982, 10:45:00 PM ${self.tz}`)
    });
  });

  describe('fullTimeString: 24-hour time', () => {
    beforeEach(() => {
      spyOn(NylasEnv.config, 'get').andReturn(true)
      self.tz = moment.tz(moment.tz.guess()).zoneAbbr()
    });

    it('displays a date and time', () => {
      const datestring = DateUtils.fullTimeString('1982-10-24 22:45')
      expect(datestring).toBe(`Sunday, October 24th 1982, 22:45:00 ${self.tz}`)
    });
  });
});