function withData (param) {
  return param < 10 ? '0' + param : '' + param;
}
function getLoopArray (start, end) {
  var start = start || 0;
  var end = end || 1;
  var array = [];
  for (var i = start; i <= end; i++) {
    array.push(withData(i));
  }
  return array;
}
function getMonthDay (year, month) {
  console.log(year, month)

  if(year.indexOf("年")!=-1){
    year = year.replace("年", '');
  }
  if(month.indexOf("月")!=-1){
    month = month.replace("月", '');
  }
  // debugger
  console.log(year, month)
  var flag = year % 400 == 0 || (year % 4 == 0 && year % 100 != 0), array = null;
  switch (month) {
    case '01':
    case '03':
    case '05':
    case '07':
    case '08':
    case '10':
    case '12':
      array = getLoopArray(1, 31)
      break;
    case '04':
    case '06':
    case '09':
    case '11':
      array = getLoopArray(1, 30)
      break;
    case '02':
      array = flag ? getLoopArray(1, 29) : getLoopArray(1, 28)
      break;
    default:
      // array = '月份格式不正确，请重新输入！';
      array = getLoopArray(1, 31)
  }

  console.log(array)

  return array;
}
function getNewDateArry () {//如果dateTimePicker的date不可能为空，此处可以省略
  // 当前时间的处理
  var newDate = new Date();
  var year = withData(newDate.getFullYear()),
    mont = withData(newDate.getMonth() + 1),
    date = withData(newDate.getDate()),
    hour = withData(newDate.getHours()),
    minu = withData(newDate.getMinutes()),
    seco = withData(newDate.getSeconds());

  return [year, mont, date, hour, minu];
}
function getcurrent (date) {
  console.log(date)
  // var d = new Date(date);
  // console.log(d)
  var d = new Date(date.replace(/\-/g, "/"));
  var year = withData(d.getFullYear()),
    month = withData(d.getMonth() + 1),
    dat = withData(d.getDate()),
    hour = withData(d.getHours()),
    minu = withData(d.getMinutes()),
    seco = withData(d.getSeconds());
  return [year, month, dat, hour, minu]
}
function dateTimePicker (startYear, endYear, date) {
  var datearr = [];

  console.log(date);

  if (date) {
    datearr = getcurrent(date);
  }
  console.log(datearr)
  // 返回默认显示的数组和联动数组的声明
  var dateTime = [], dateTimeArray = [[], [], [], []];
  var start = startYear || 1978;
  var end = endYear || 2100;
  // 默认开始显示数据

  var defaultDate = date ? datearr : getNewDateArry();
  // console.log(defaultDate);
  // console.log(date);
  // console.log(defaultDate[3] + ":" + defaultDate[4])
  // 处理联动列表数据
  /*年月日 时分*/
  dateTimeArray[0] = getLoopArray(start, end);
  dateTimeArray[1] = getLoopArray(1, 12);
  dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
  dateTimeArray[3] = ['06:00', '06:30', '07:00', '07:30', '08:00', '08:30', '09:00', '09:30', '10:00', '10:30', '11:00', '11:30', '12:00', '12:30', '13:00', '13:30', '14:00', '14:30', '15:00', '15:30', '16:00', '16:30', '17:00', '17:30', '18:00', '18:30', '19:00', '19:30'];

  dateTimeArray.forEach((current, index) => {
    // console.log(current);
    // console.log(index);
    // console.log(defaultDate[index]);
    // console.log(current.indexOf(defaultDate[index]));
    if (index != 3) {
      dateTime.push(current.indexOf(defaultDate[index]));
    } else {
      if (defaultDate[3] != "") {
        dateTime.push(dateTimeArray[3].indexOf(defaultDate[3] + ":" + defaultDate[4]))
      } else {
        dateTime.push(12);
      }
    }
  });
  return {
    dateTimeArray: dateTimeArray,
    dateTime: dateTime
  }
}
module.exports = {
  dateTimePicker: dateTimePicker,
  getMonthDay: getMonthDay
}