import moment from 'moment';

export default class Time {
  constructor(time = new Date(), format = '') {
    this.time = moment(time, format);
  }

  getNowTime(format) {
    return moment(this.time.format('X') - moment().format('X'), 'X').format(
      format
    );
  }

  addTime(time, formatType) {
    return this.time.add(time, 'hours').format(formatType);
  }

  nextList() {
    const time2 = this.time.add(1, 'hours');

    const hour = Number(time2.format('H'));

    const list = [];

    for (let i = hour; i < 24; i++) {
      if (hour === i) {
        const min = Number(time2.format('s'));
        const minList = [];
        if (min <= 0) {
          minList.push(0);
        }
        if (min <= 15) {
          minList.push(15);
        }
        if (min <= 30) {
          minList.push(30);
        }
        if (min <= 45) {
          minList.push(45);
        }
        minList.forEach((item) => {
          list.push(moment(`${i}:${item}`, 'H:m').format('HH:mm'));
        });
      } else {
        [0, 15, 30, 45].forEach((item) => {
          list.push(moment(`${i}:${item}`, 'H:m').format('HH:mm'));
        });
      }
    }

    return list;
  }

  getFormat(formatType) {
    return this.time.format(formatType);
  }
}