/**
 * 时间格式化
 *
 * @param time 时间
 * @param fmt 格式
 * @returns 格式化后的时间
 */
const formatTimestamp = (timestamp: number, fmt = 'yyyy-MM-dd HH:mm:ss'): string => {
	if (!timestamp) {
		return ''
	}
	const time = new Date(timestamp)
	const dict: { [key: string]: any } = {
		yyyy: time.getFullYear(),
		M: time.getMonth() + 1,
		d: time.getDate(),
		H: time.getHours(),
		m: time.getMinutes(),
		s: time.getSeconds(),
		w: time.getDay(),
		MM: ('' + (time.getMonth() + 101)).substring(1),
		dd: ('' + (time.getDate() + 100)).substring(1),
		HH: ('' + (time.getHours() + 100)).substring(1),
		mm: ('' + (time.getMinutes() + 100)).substring(1),
		ss: ('' + (time.getSeconds() + 100)).substring(1),
		SSS: ('' + (time.getMilliseconds() + 1000)).substring(1),
		WW: getWeek(time.getDay())
	}
	return fmt.replace(/(yyyy|MM?|dd?|HH?|mm?|ss?|SSS?|WW?)/g, function () {
		// eslint-disable-next-line prefer-rest-params
		return dict[arguments[0]]
	})
}

/**
 * 获取大写周数
 *
 * @param week 一周中的第几天
 * @returns 大写周数
 */
const getWeek = (week: number): string => {
	switch (week) {
		case 0:
			return '日'
		case 1:
			return '一'
		case 2:
			return '二'
		case 3:
			return '三'
		case 4:
			return '四'
		case 5:
			return '五'
		case 6:
			return '六'
		default:
			return ''
	}
}

export { formatTimestamp, getWeek }