import moment from 'moment';


export class AUniqCacheDay {
  dateMap = {};
  deleted = false;
  keepDays = 10;
  constructor ({ keepDays } = { keepDays: 10 }) {
    this.keepDays = keepDays;
  }
  remove(item) {
    const day = moment().format('YYYY-MM-DD');

    delete this.dateMap[day][item];
  }

  add(item) {
    const day = moment().format('YYYY-MM-DD');

    this.dateMap[day] = {
      ...this.dateMap[day],
      [item]: 1,
    };

    this.cleanMap();
  }
  addItems(items) {
    for (const item of items) {
      const day = moment().format('YYYY-MM-DD');

      this.dateMap[day] = {
        ...this.dateMap[day],
        [item]: 1,
      };
    }

    this.cleanMap();
  }

  cleanMap() {
    const minute = moment().minute();
    const dates = Object.keys(this.dateMap);

    if (!this.deleted && minute === 0) {
      for (const d of dates) {
        if (moment().diff(moment(d), 'days') > this.keepDays) {
          // 如果当前日期超过1天
          delete this.dateMap[d];
        }
      }

      this.deleted = true;
    } else if (minute === 1) {
      this.deleted = false;
    }
  }
  has(item) {
    const dates = Object.keys(this.dateMap);

    for (const d of dates) {
      if (this.dateMap[d] && this.dateMap[d][item]) {
        return true;
      }
    }

    return false;
  }
  isValid(item) {
    return !this.has(item);
  }
}