38 lines
1.1 KiB
TypeScript
38 lines
1.1 KiB
TypeScript
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const UTC_DATE_FMT: Intl.DateTimeFormatOptions = {
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year: 'numeric',
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month: 'numeric',
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day: 'numeric',
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hour: '2-digit',
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minute: '2-digit',
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hour12: false,
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timeZone: 'UTC',
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}
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/** Backend unix nanoseconds (UTC+0) → localized date string with UTC suffix. */
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export function formatUnixNano(ns: number | undefined | null): string | null {
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if (!ns || ns <= 0) return null
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const ms = Math.floor(ns / 1_000_000)
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const date = new Date(ms)
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if (Number.isNaN(date.getTime())) return null
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return `${date.toLocaleString('zh-TW', UTC_DATE_FMT)} UTC`
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}
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/** Threads / API posted_at (ISO or parseable string) → date label. */
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export function formatPostedAt(raw: string | undefined | null): string | null {
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const value = raw?.trim()
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if (!value) return null
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const parsed = new Date(value)
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if (!Number.isNaN(parsed.getTime())) {
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return parsed.toLocaleString('zh-TW', UTC_DATE_FMT) + ' UTC'
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}
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if (/^\d{4}[-/]/.test(value)) return value
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return value
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}
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/** Scan post publish time. Do not fall back to crawl入库 time. */
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export function formatScanPostDate(post: {
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posted_at?: string
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}): string | null {
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return formatPostedAt(post.posted_at)
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}
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