lc
c41b3e138e
WeChat chooseAvatar 返回的 wxfile:// 临时 URL 几天后失效, 头像会变灰。加 util.fileToDataURI 把临时文件读成 data URI 存到本地(限制 512KB,超出走降级方案),从根上解决。
106 lines
3.3 KiB
JavaScript
106 lines
3.3 KiB
JavaScript
const formatTime = (seconds) => {
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const m = Math.floor(seconds / 60)
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const s = seconds % 60
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return `${String(m).padStart(2, '0')}:${String(s).padStart(2, '0')}`
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}
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const formatDuration = (seconds) => {
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if (seconds < 60) return `${seconds}秒`
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const m = Math.floor(seconds / 60)
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const s = seconds % 60
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return s > 0 ? `${m}分${s}秒` : `${m}分钟`
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}
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const getDaysInMonth = (year, month) => new Date(year, month, 0).getDate()
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const getMonthCalendar = (year, month) => {
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const firstDay = new Date(year, month - 1, 1)
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const daysInMonth = new Date(year, month, 0).getDate()
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const startDayOfWeek = firstDay.getDay()
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const weeks = []
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let week = [null, null, null, null, null, null, null]
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for (let d = 1; d <= daysInMonth; d++) {
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const dow = (startDayOfWeek + d - 1) % 7
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week[dow] = d
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if (dow === 6 || d === daysInMonth) {
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weeks.push(week.slice())
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week = [null, null, null, null, null, null, null]
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}
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}
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return weeks
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}
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/**
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* Format a Date as `YYYY-MM-DD HH:MM:SS` in local time.
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*
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* Used as the canonical `record.date` string so each record has a
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* precise timestamp (e.g. "2026-06-11 14:30:45"). Use `_dateOnly()`
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* to strip back to YYYY-MM-DD for date-level comparisons (streak,
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* leaderboard day filter, etc.).
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*/
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const formatDate = (date) => {
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const y = date.getFullYear()
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const mo = String(date.getMonth() + 1).padStart(2, '0')
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const d = String(date.getDate()).padStart(2, '0')
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const h = String(date.getHours()).padStart(2, '0')
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const mi = String(date.getMinutes()).padStart(2, '0')
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const s = String(date.getSeconds()).padStart(2, '0')
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return `${y}-${mo}-${d} ${h}:${mi}:${s}`
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}
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/** Strip the time portion of a formatDate string → "YYYY-MM-DD". */
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const _dateOnly = (s) => (typeof s === 'string' && s.length >= 10) ? s.substring(0, 10) : ''
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/**
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* Convert a local file path (typically `wxfile://...` from chooseAvatar) to a
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* base64 data URI. Used to make temporary file URLs survive the WeChat
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* expiration window (a few days) by embedding the bytes inline.
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*
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* Rejects if the file exceeds `maxBytes` (default 512KB) so a stray huge
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* image doesn't blow the 10MB total wx.storage budget. Caller should
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* fall back to the raw URL on rejection.
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*/
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const fileToDataURI = (filePath, maxBytes = 512 * 1024) => {
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return new Promise((resolve, reject) => {
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if (!filePath || typeof wx.getFileSystemManager !== 'function') {
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reject(new Error('FileSystemManager unavailable'))
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return
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}
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const fs = wx.getFileSystemManager()
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fs.getFileInfo({
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filePath,
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success: (info) => {
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if (info.size > maxBytes) {
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reject(new Error(`File too large: ${info.size} > ${maxBytes}`))
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return
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}
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fs.readFile({
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filePath,
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encoding: 'base64',
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success: (res) => {
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// chooseAvatar returns PNG; allow JPG/GIF/WEBP fallbacks.
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const m = (filePath.match(/\.(\w+)(?:\?|$)/) || [, 'png'])[1].toLowerCase()
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const mime = { png: 'image/png', jpg: 'image/jpeg', jpeg: 'image/jpeg', gif: 'image/gif', webp: 'image/webp' }[m] || 'image/png'
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resolve(`data:${mime};base64,${res.data}`)
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},
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fail: reject
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})
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},
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fail: reject
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})
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})
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}
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module.exports = {
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formatTime,
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formatDuration,
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getDaysInMonth,
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getMonthCalendar,
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formatDate,
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dateOnly: _dateOnly,
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fileToDataURI
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}
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