<template> <time :title="absolute"> <template v-if="invalid">{{ i18n.ts._ago.invalid }}</template> <template v-else-if="mode === 'relative'">{{ relative }}</template> <template v-else-if="mode === 'absolute'">{{ absolute }}</template> <template v-else-if="mode === 'detail'">{{ absolute }} ({{ relative }})</template> </time> </template> <script lang="ts" setup> import isChromatic from 'chromatic/isChromatic'; import { onUnmounted } from 'vue'; import { i18n } from '@/i18n'; import { dateTimeFormat } from '@/scripts/intl-const'; const props = withDefaults(defineProps<{ time: Date | string | number | null; origin?: Date | null; mode?: 'relative' | 'absolute' | 'detail'; }>(), { origin: isChromatic() ? new Date('2023-04-01T00:00:00Z') : null, mode: 'relative', }); const _time = props.time == null ? NaN : typeof props.time === 'number' ? props.time : (props.time instanceof Date ? props.time : new Date(props.time)).getTime(); const invalid = Number.isNaN(_time); const absolute = !invalid ? dateTimeFormat.format(_time) : i18n.ts._ago.invalid; let now = $ref((props.origin ?? new Date()).getTime()); const relative = $computed<string>(() => { if (props.mode === 'absolute') return ''; // absoluteではrelativeを使わないので計算しない if (invalid) return i18n.ts._ago.invalid; const ago = (now - _time) / 1000/*ms*/; return ( ago >= 31536000 ? i18n.t('_ago.yearsAgo', { n: Math.round(ago / 31536000).toString() }) : ago >= 2592000 ? i18n.t('_ago.monthsAgo', { n: Math.round(ago / 2592000).toString() }) : ago >= 604800 ? i18n.t('_ago.weeksAgo', { n: Math.round(ago / 604800).toString() }) : ago >= 86400 ? i18n.t('_ago.daysAgo', { n: Math.round(ago / 86400).toString() }) : ago >= 3600 ? i18n.t('_ago.hoursAgo', { n: Math.round(ago / 3600).toString() }) : ago >= 60 ? i18n.t('_ago.minutesAgo', { n: (~~(ago / 60)).toString() }) : ago >= 10 ? i18n.t('_ago.secondsAgo', { n: (~~(ago % 60)).toString() }) : ago >= -1 ? i18n.ts._ago.justNow : i18n.ts._ago.future); }); let tickId: number; function tick() { now = props.origin ?? (new Date()).getTime(); const ago = (now - _time) / 1000/*ms*/; const next = ago < 60 ? 10000 : ago < 3600 ? 60000 : 180000; tickId = window.setTimeout(tick, next); } if (props.mode === 'relative' || props.mode === 'detail') { tick(); onUnmounted(() => { window.clearTimeout(tickId); }); } </script>