/**
 * 时间前后向前推算时间集合
 * @param {string:before|after} timebd：获取时间往后推，还是往前推，
 * @param {boole} haveCurrentDay：包不包含当天时间，
 * @param {number} Days：计算几天的时间，
 * @param {string:"2023-11-02"} timing：指定不指定当天的日期
 * @returns {array}数据集合
 */
export const nextDay = (timebd, haveCurrentDay, Days, timing) => {

    let today = new Date()   //获取今天的日期
    if (timing) {
      today = new Date(timing)
    }
    let date2 = new Date(today);  
    let dateArray = []
    timebd=timebd ? timebd:"after"
    haveCurrentDay=haveCurrentDay ? true:false
    Days=Days ? Days:7
    function TimestampToDate2(Timestamp) {
    　　let now = new Date(Timestamp),
    　　y = now.getFullYear(),
    　　m = now.getMonth() + 1,
    　　d = now.getDate();
    　　return y + "-" + (m < 10 ? "0" + m : m) + "-" + (d < 10 ? "0" + d : d);
    }
    let fori=haveCurrentDay ? 0:1;
    let fortotal=haveCurrentDay ? Days:Days+1;
    for(let i = fori; i < fortotal; i++){
      let everyDay=""
      if (timebd=="after") {//未来
        everyDay=date2.setDate(today.getDate() + i)
      }else{//过去
        everyDay=date2.setDate(today.getDate() - i)
      }
      dateArray.push(TimestampToDate2(everyDay))  //获取未来7天内的日期
    }
    if (timebd=="after") {//未来
      return dateArray
    }else{//过去
      return dateArray.reverse()
    }
  }

/**
 * 返回两个日期之前的天数
 */
export const getDateByDays = (startDate, endDdate) => {
	let d1 = Date.parse(new Date(startDate));
	let d2 = Date.parse(new Date(endDdate));
    // 时间戳相减 / 天数
	let day = parseInt((d2 - d1) / (1000 * 60 * 60 * 24));
	return day
}

// 获取多少天后的日期
export const getDaysAfterDate = (date, days) => {
	if (days === 0) {
		return '2099-01-01'
	}
	const now = new Date(date);
	now.setDate(now.getDate() + days);
	const year = now.getFullYear();
	const month = now.getMonth() + 1; // 月份是从0开始的
	const day = now.getDate();
	return `${year}-${month.toString().padStart(2, '0')}-${day.toString().padStart(2, '0')}`;
}


// meeting
/**
 * 获取当天日期
 **/
export const getDay = () => {
	let date = new Date();
	var year = date.getFullYear();
	var month = date.getMonth() + 1;
	var day = date.getDate();
	month = (month > 9) ? month : ("0" + month);
	day = (day < 10) ? ("0" + day) : day;
	let week = '星期' + '日一二三四五六'.charAt(new Date().getDay())
	var today = year + "年" + month + "月" + day + "日" + " " + week;
	
	return {
		today,
		date: year + "-" + month + "-" + day,
		day
	};
}

/**
 * 获取上一天日期
 **/
export const getPreviousDay = (number, val) => {
	let num = (24*60*60*1000) * number;
	let date = ''
	if (val) {
		date = new Date(new Date(val).getTime() - num);
	} else {
		date = new Date(new Date().getTime() - num);
	}
	var year = date.getFullYear();
	var month = date.getMonth() + 1;
	var day = date.getDate();
	month = (month > 9) ? month : ("0" + month);
	day = (day < 10) ? ("0" + day) : day;
	let week = '星期' + '日一二三四五六'.charAt(date.getDay())
	var today = year + "年" + month + "月" + day + "日" + " " + week;
	
	return {
		today,
		date: year + "-" + month + "-" + day
	};
}

// 格式化日对象
export const getNowDate = () => {
  var date = new Date();
  var sign2 = ":";
  var year = date.getFullYear() // 年
  var month = date.getMonth() + 1; // 月
  var day = date.getDate(); // 日
  var hour = date.getHours(); // 时
  var minutes = date.getMinutes(); // 分
  var seconds = date.getSeconds() //秒
  var weekArr = ['星期一', '星期二', '星期三', '星期四', '星期五', '星期六', '星期天'];
  var week = weekArr[date.getDay()];
  // 给一位数的数据前面加 “0”
  if (month >= 1 && month <= 9) {
    month = "0" + month;
  }
  if (day >= 0 && day <= 9) {
    day = "0" + day;
  }
  if (hour >= 0 && hour <= 9) {
    hour = "0" + hour;
  }
  if (minutes >= 0 && minutes <= 9) {
    minutes = "0" + minutes;
  }
  if (seconds >= 0 && seconds <= 9) {
    seconds = "0" + seconds;
  }
  return year + "-" + month + "-" + day + " " + hour + sign2 + minutes + sign2 + seconds;
}

//必须为字母加数字且长度不小于8位
export const CheckPassWord = (password) => {	
   var str = password;
    if (str == null || str.length <8) {
        return false;
    }
    var reg1 = new RegExp(/^[0-9A-Za-z]+$/);
    if (!reg1.test(str)) {
        return false;
    }
    var reg = new RegExp(/[A-Za-z].*[0-9]|[0-9].*[A-Za-z]/);
    if (reg.test(str)) {
        return true;
    } else {
        return false;
    }
}