84dbaf9cd2
- 移除所有 Vue 组件和 README 中的 emoji (按钮文字、标题、功能列表) - 将 src 下所有英文注释改为中文, 保留专业名词 (RRULE, EXDATE, ICS 等) - 涉及文件: date.js, event-factory.js, ical-io.js, organize.js, recur.js, split.js, weekday.js, useCalendar.js, EventDetail.vue, App.vue, DropZone.vue, EventList.vue, HeaderBar.vue, README.md
49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
/**
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* 重复网格展开 - 移植自 ical_editor.py 的 occurrence 生成逻辑。
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* occurrence 按需从 exdates 计算, 不存储在模型上。
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*/
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import { toISODate, toDate, addDays } from './date.js'
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/** 重复事件的间隔天数。 */
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export function intervalDays(ev) {
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if (!ev.rrule) return 0
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const { freq, interval } = ev.rrule
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const step = interval || 1
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return freq === 'WEEKLY' ? 7 * step : step
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}
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const MAX_OCCURRENCES = 500
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/**
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* 将重复事件展开为 occurrence 网格。
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* 返回 [{ date: 'YYYY-MM-DD', skipped: boolean }]。
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*/
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export function expandOccurrences(ev) {
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// 非重复事件: 单个 occurrence
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if (!ev.rrule) {
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return [{ date: ev.dtstartDate, skipped: false }]
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}
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const step = intervalDays(ev)
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if (step <= 0) {
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return [{ date: ev.dtstartDate, skipped: false }]
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}
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const until = ev.rrule.untilDate
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? toDate(ev.rrule.untilDate)
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: new Date(toDate(ev.dtstartDate).getTime() + 365 * 24 * 3600 * 1000)
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const exdateSet = new Set(ev.exdates || [])
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const occs = []
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let cur = ev.dtstartDate
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let count = 0
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while (cur <= toISODate(until) && count < MAX_OCCURRENCES) {
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occs.push({ date: cur, skipped: exdateSet.has(cur) })
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cur = addDays(cur, step)
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count++
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}
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return occs
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}
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