export function bigerZero(num){
	if(num===undefined){
		return 0
	}
	return num<0?0:num
}

export function buildYearData(year, long) {
	let minYear = long[0];
	let maxYear = long[1];

	if (minYear > maxYear) {
		console.log("区间错误");
		return
	}
	let len = maxYear - minYear
	let yearList = createArray(len + 1, year + minYear)
	return yearList;
}

export function buildHourData(){
	return createArray(24);
}

export function buildMinuteData(){
	return createArray(60);
}

export function buildSecondData(){
	return createArray(60);
}

export function buildMonthData(year) {
	return createArray(12, 1);
}

export function buildDayData(year, month) {
	let is31Day = [1, 3, 5, 7, 8, 10, 12].indexOf(month) != -1
	let leapYear = isLeapYear(year);
	if (month !== 2) {
		return createArray(is31Day ? 31 : 30, 1);
	} else if (leapYear && month === 2) {
		return createArray(29, 1);
	} else if (!leapYear && month === 2) {
		return createArray(28, 1);
	}
	return []
}


function createArray(length, num = 0) {
	return [...Array(length)].map((v, i) => (num + i))
}

/**
 * 是否是闰年
 * @param {Object} year 年份
 */
function isLeapYear(year) {
	if (year % 100 != 0 && year % 4 == 0 || year % 400 == 0) {
		return true
	}
	return false
}

	export function dateTimeFormat(date, fmt = 'yyyy-MM-dd HH:mm:ss') {
		if (!date) {
			return ''
		}
		if (typeof date === 'string') {
			date = date.replace('T', ' ').replace('Z', '');
			date = new Date(date.replace(/-/g, '/'))
		}
		if (typeof date === 'number') {
			date = new Date(date)
		}
		var o = {
			'M+': date.getMonth() + 1,
			'd+': date.getDate(),
			'h+': date.getHours() % 12 === 0 ? 12 : date.getHours() % 12,
			'H+': date.getHours(),
			'm+': date.getMinutes(),
			's+': date.getSeconds(),
			'q+': Math.floor((date.getMonth() + 3) / 3),
			'S': date.getMilliseconds()
		}
		var week = {
			'0': '\u65e5',
			'1': '\u4e00',
			'2': '\u4e8c',
			'3': '\u4e09',
			'4': '\u56db',
			'5': '\u4e94',
			'6': '\u516d'
		}
		if (/(y+)/.test(fmt)) {
			fmt = fmt.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length))
		}
		if (/(E+)/.test(fmt)) {
			fmt = fmt.replace(RegExp.$1, ((RegExp.$1.length > 1) ? (RegExp.$1.length > 2 ? '\u661f\u671f' : '\u5468') :
					'') +
				week[date.getDay() + ''])
		}
		for (var k in o) {
			if (new RegExp('(' + k + ')').test(fmt)) {
				fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? (o[k]) : (('00' + o[k]).substr(('' + o[k])
					.length)))
			}
		}
		return fmt
	}