init

utils/time.js

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+export function formatTime(date) {
+	if (!date) return ''
+	if (typeof date === 'string') {
+		date = new Date(date)
+	}
+	const hours = String(date.getHours()).padStart(2, '0')
+	const minutes = String(date.getMinutes()).padStart(2, '0')
+	return `${hours}:${minutes}`
+}
+
+export function formatDate(date) {
+	if (!date) return ''
+	if (typeof date === 'string') {
+		date = new Date(date)
+	}
+	const year = date.getFullYear()
+	const month = String(date.getMonth() + 1).padStart(2, '0')
+	const day = String(date.getDate()).padStart(2, '0')
+	return `${year}-${month}-${day}`
+}
+
+export function formatDateTime(date) {
+	if (!date) return ''
+	if (typeof date === 'string') {
+		date = new Date(date)
+	}
+	return `${formatDate(date)} ${formatTime(date)}:${String(date.getSeconds()).padStart(2, '0')}`
+}
+
+export function formatDuration(minutes) {
+	if (!minutes || minutes < 0) return '0分钟'
+	
+	const hours = Math.floor(minutes / 60)
+	const mins = Math.round(minutes % 60)
+	
+	if (hours === 0) {
+		return `${mins}分钟`
+	}
+	if (mins === 0) {
+		return `${hours}小时`
+	}
+	return `${hours}小时${mins}分`
+}
+
+export function formatTimerDisplay(totalSeconds) {
+	const hours = Math.floor(totalSeconds / 3600)
+	const minutes = Math.floor((totalSeconds % 3600) / 60)
+	const seconds = totalSeconds % 60
+	return `${String(hours).padStart(2, '0')}:${String(minutes).padStart(2, '0')}:${String(seconds).padStart(2, '0')}`
+}
+
+export function getGreeting() {
+	const hour = new Date().getHours()
+	if (hour < 6) return '凌晨好'
+	if (hour < 12) return '早上好'
+	if (hour < 14) return '中午好'
+	if (hour < 18) return '下午好'
+	return '晚上好'
+}
+
+export function isToday(dateStr) {
+	const today = new Date().toISOString().split('T')[0]
+	return dateStr === today
+}
+
+export function isYesterday(dateStr) {
+	const yesterday = new Date()
+	yesterday.setDate(yesterday.getDate() - 1)
+	return dateStr === yesterday.toISOString().split('T')[0]
+}
+
+export function daysBetween(date1, date2) {
+	const d1 = new Date(date1)
+	const d2 = new Date(date2)
+	const diffTime = Math.abs(d2 - d1)
+	return Math.ceil(diffTime / (1000 * 60 * 60 * 24))
+}
+
+export function getWeekday(dateStr) {
+	const weekdays = ['日', '一', '二', '三', '四', '五', '六']
+	const date = new Date(dateStr)
+	return weekdays[date.getDay()]
+}