mirror of
https://github.com/nfonteyne/octane-website.git
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56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
// Builds a text/calendar feed of rehearsals for subscription (webcal://) in
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// external calendar apps. Timestamps are emitted in UTC (`...Z`) so no
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// VTIMEZONE block is needed — every client renders them in its own zone.
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function formatDateUTC(date) {
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return new Date(date).toISOString().replace(/[-:]/g, '').split('.')[0] + 'Z';
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}
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// Per RFC 5545 §3.3.11: backslash-escape commas, semicolons and backslashes,
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// and turn newlines into the literal `\n` escape sequence.
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function escapeText(text) {
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return String(text)
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.replace(/\\/g, '\\\\')
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.replace(/;/g, '\\;')
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.replace(/,/g, '\\,')
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.replace(/\r?\n/g, '\\n');
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}
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function rehearsalStatus(rehearsal) {
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const hasReject = rehearsal.votes.some((v) => v.vote === 'reject');
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const hasAccept = rehearsal.votes.some((v) => v.vote === 'accept');
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if (hasAccept && !hasReject) return 'CONFIRMED';
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return 'TENTATIVE';
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}
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function rehearsalToEvent(rehearsal) {
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const status = rehearsalStatus(rehearsal);
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const summary = status === 'CONFIRMED' ? 'Répétition' : 'Répétition (proposition)';
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const lines = [
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'BEGIN:VEVENT',
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`UID:rehearsal-${rehearsal.id}@octane`,
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`DTSTAMP:${formatDateUTC(rehearsal.created_at || new Date())}`,
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`DTSTART:${formatDateUTC(rehearsal.starts_at)}`,
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`DTEND:${formatDateUTC(rehearsal.ends_at)}`,
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`SUMMARY:${escapeText(summary)}`,
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`STATUS:${status}`,
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];
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if (rehearsal.location) lines.push(`LOCATION:${escapeText(rehearsal.location)}`);
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lines.push('END:VEVENT');
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return lines;
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}
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function buildRehearsalsFeed(rehearsals) {
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const lines = [
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'BEGIN:VCALENDAR',
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'VERSION:2.0',
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'PRODID:-//Octane//Rehearsals//FR',
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'CALSCALE:GREGORIAN',
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'METHOD:PUBLISH',
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'X-WR-CALNAME:Répétitions Octane',
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...rehearsals.flatMap(rehearsalToEvent),
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'END:VCALENDAR',
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];
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return lines.join('\r\n');
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}
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module.exports = { buildRehearsalsFeed };
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