import moment from "moment";
export const switchShowTime = (type) => {
  let nowTime = new Date
  let startTime = ''
  let endTime = ''
  let currentYear = nowTime.getFullYear();
  let startYear = null
  switch(type) {
    case '日':
      let hour = nowTime.getHours()
      if (hour > 6) {
        startTime = moment(nowTime).format('yyyy.MM.DD')+' 7点'
        endTime = moment(moment(nowTime)+86400000).format('yyyy.MM.DD')+' 7点'
      }else{
        endTime = moment(nowTime).format('yyyy.MM.DD')+' 7点'
        startTime = moment(moment(nowTime)-86400000).format('yyyy.MM.DD')+' 7点'
      }
      return startTime+'-'+endTime
    case '周':
      let timestamp = nowTime- 24 * 60 * 60 * 1000
      endTime = moment(timestamp).format('yyyy.MM.DD')
      startTime = moment(timestamp-24 * 60 * 60 * 1000 * 6).format('yyyy.MM.DD')
      return startTime+'-'+endTime
    case '月':
      let day = 29;
      let lastMonth = nowTime.getMonth() === 0 ? 12 : nowTime.getMonth();
      if (lastMonth === 2) {
        day = isLeapYear(currentYear) ? 29 : 28;
      }
      if (lastMonth === 12) {
        startYear = currentYear - 1
      }else{
        startYear = currentYear
      }
      startTime = startYear+'.'+lastMonth+'.'+day
      endTime = currentYear+'.'+(nowTime.getMonth()+1)+'.28'
      return startTime+'-'+endTime
    default:// 年
      startTime = (currentYear - 1)+'.12.29'
      endTime = currentYear+'.12.28'
      return startTime+'-'+endTime
  }
}
const isLeapYear = (year) => {
  return year % 400 == 0 || (year % 4 == 0 && year % 100 != 0);
}