export default class DateUtil {
  public static formatNumStr(num: number) {
    let str = '' + num
    if (num < 10) {
      str = '0' + num
    }
    return str
  }

  public static formateYearMonthDayStr(timestamp: number) {
    let date: Date = new Date(timestamp)
    return (
      date.getFullYear() + '-' + (date.getMonth() + 1) + '-' + date.getDate()
    )
  }

  public static formateMonthDayStr(timestamp: number) {
    let date: Date = new Date(timestamp)
    return date.getMonth() + 1 + '月' + date.getDate() + '日'
  }

  //  timestamp:1453094034000  2018-1-31 19:53:44
  //根据时间戳返回 2018-1-31 19:53:44
  public static formatDateStr(timestamp: number) {
    let date: Date = new Date(timestamp)
    return (
      date.getFullYear() +
      '-' +
      (date.getMonth() + 1) +
      '-' +
      date.getDate() +
      ' ' +
      this.formatNumStr(date.getHours()) +
      ':' +
      this.formatNumStr(date.getMinutes()) +
      ':' +
      this.formatNumStr(date.getSeconds())
    )
  }

  //  timestamp:1453094034000  2018-1-31-19-53-44
  //根据时间戳返回 2018-1-31-19-53-44
  public static formatDateStr2(timestamp: number) {
    let date: Date = new Date(timestamp)
    return (
      date.getFullYear() +
      '-' +
      (date.getMonth() + 1) +
      '-' +
      date.getDate() +
      '-' +
      this.formatNumStr(date.getHours()) +
      '-' +
      this.formatNumStr(date.getMinutes()) +
      '-' +
      this.formatNumStr(date.getSeconds())
    )
  }

  //  timestamp:1453094034000  2018-1-31
  //根据时间戳返回 2018-1-31
  public static formatDateStr3(timestamp: number) {
    let date: Date = new Date(timestamp)
    return (
      date.getFullYear() + '-' + (date.getMonth() + 1) + '-' + date.getDate()
    )
  }

  //  timestamp:1453094034000
  //根据时间戳返回 19:53
  public static formatHourMinStr(timestamp: number) {
    let date: Date = new Date(timestamp)
    return (
      this.formatNumStr(date.getHours()) +
      ':' +
      this.formatNumStr(date.getMinutes())
    )
  }

  //  timestamp:1453094034000
  //根据时间戳返回 19:53:11
  public static formatHourMinSecondStr(timestamp: number) {
    let date: Date = new Date(timestamp)
    return (
      this.formatNumStr(date.getHours()) +
      ':' +
      this.formatNumStr(date.getMinutes()) +
      ':' +
      this.formatNumStr(date.getSeconds())
    )
  }

  public static now(): number {
    let date: Date = new Date()
    return date.getTime()
  }

  public static betweenTime(startTime: number, endTime: number) {
    let date: Date = new Date()
    if (date.getTime() >= startTime && date.getTime() <= endTime) {
      return true
    }
    return false
  }

  //根据时间戳返回 1天19:53:11
  public static formatLeftTime(timestamp: number) {
    let result: string = ''
    let day: number = Math.floor(timestamp / (1000 * 60 * 60 * 24))
    let hour: number = Math.floor(timestamp / (1000 * 60 * 60)) % 24
    let min: number = Math.floor(timestamp / (1000 * 60)) % 60
    let second: number = Math.floor(timestamp / 1000) % 60
    result =
      day +
      '天' +
      this.formatNumStr(hour) +
      ':' +
      this.formatNumStr(min) +
      ':' +
      this.formatNumStr(second)
    return result
  }

  public static isToday(dateTime: number): boolean {
    let nowDate: Date = new Date()
    let checkDate: Date = new Date(dateTime)
    if (
      checkDate.getFullYear() == nowDate.getFullYear() &&
      checkDate.getMonth() == nowDate.getMonth() &&
      checkDate.getDate() == nowDate.getDate()
    ) {
      return true
    }
    return false
  }
}