cyber-narrator-cn-ui/src/utils/date-util.js

// 获取初始化时间，默认最近一周
Date.prototype.setStart = function () {
  this.setHours(0)
  this.setMinutes(0)
  this.setSeconds(0)
}
Date.prototype.setEnd = function () {
  this.setHours(23)
  this.setMinutes(59)
  this.setSeconds(59)
}

export function getDefaultDate () {
  let start = this.getDays(-7)
  let end = this.getDays(0)
  start.setStart()
  end.setEnd()
  // let start = this.getHoursTime(-1);
  // let end = this.getHoursTime(0);
  start = this.timeFormate(start, 'yyyy-MM-dd hh:mm:ss')
  end = this.timeFormate(end, 'yyyy-MM-dd hh:mm:ss')
  this.selectDate = [start, end]
}

export function getHoursTime (hours) {
  const today = new Date().getTime()
  const date = new Date(today + (hours * 60 * 60 * 1000))
  return date
}

// 初始化日期
export function getDays (days) {
  const today = new Date().getTime()
  return new Date(today + (days * 24 * 60 * 60 * 1000))
}
export function formatDate (date, type) {
  const yy = date.getFullYear()
  const dateM = date.getMonth() + 1
  const mm = dateM > 9 ? dateM : `0${dateM}`
  const dateD = date.getDate()
  const dd = dateD > 9 ? dateD : `0${dateD}`
  if (type) {
    return `${yy}${type}${mm}${type}${dd}`
  }
  return `${yy}${mm}${dd}`
}
export function timeFormate (date, fmt = 'yyyy-MM-dd hh:mm:ss') {
  const time = new Date(date)
  let week = ''
  switch (time.getDay()) {
    case 0:
      week = '周日'
      break
    case 1:
      week = '周一'
      break
    case 2:
      week = '周二'
      break
    case 3:
      week = '周三'
      break
    case 4:
      week = '周四'
      break
    case 5:
      week = '周五'
      break
    case 6:
      week = '周六'
      break
    default:
      // eslint-disable-next-line no-unused-vars
      week = ''
      break
  }
}
export function getStep (startTime, endTime) {
  const start = new Date(startTime)
  const end = new Date(endTime)
  let step = '15s'
  const numInterval = end.getTime() - start.getTime()
  const oneDay = 86400000
  const sevenDay = 604800000
  const thirtyDay = 2592000000
  if (numInterval < oneDay) { // 小于1天，step为15s
    step = '15s'
  } else if (numInterval < sevenDay) {
    step = '5m'
  } else if (numInterval < thirtyDay) {
    step = '10m'
  } else {
    step = '30m'
  }
  return step
}
export function getNumStr (num) {
  if (num >= 1000) {
    const kbNum = num / 1000
    if (kbNum >= 1000) {
      const mbNum = kbNum / 1000
      if (mbNum > 1000) {
        const gbNum = mbNum / 1000
        if (gbNum > 1000) {
          const tbNum = gbNum / 1000
          if (tbNum > 1000) {
            const pbNum = tbNum / 1000
            return `${pbNum.toFixed(2)}PB`
          }
          return `${tbNum.toFixed(2)}TB`
        }
        return `${gbNum.toFixed(2)}GB`
      }
      return `${mbNum.toFixed(2)}MB`
    }
    return `${kbNum.toFixed(2)}KB`
  }
  return num.toFixed(2)
}
export function debounce (fn, delay) {
  // 记录上一次的延时器
  let timer = null
  delay = delay || 200
  return function () {
    const args = arguments
    const that = this
    // 清除上一次延时器
    clearTimeout(timer)
    timer = setTimeout(function () {
      fn.apply(that, args)
    }, delay)
  }
}
export function getNowTime (interval) {
  const endTime = window.$dayJs.tz().valueOf()
  const startTime = endTime - interval * 60 * 1000
  return {
    startTime,
    endTime
  }
}