2ddf6495fb
- Add /storage/ and /backend/storage/ to .gitignore - Track meetup time helper, logo asset, and assorted frontend/backend fixes
54 lines
1.9 KiB
TypeScript
54 lines
1.9 KiB
TypeScript
/**
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* Event start times in Brussels local wall time, converted to UTC the same way as
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* backend/src/api/calendar.ts (parseEventDates). Keeps admin/public UI aligned with ICS.
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*/
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// Parse "HH:MM", "H:MM am/pm", "Hpm" etc.
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function parseLocalTime(t: string): { h: number; m: number } {
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const clean = t.trim();
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const m24 = clean.match(/^(\d{1,2}):(\d{2})$/);
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if (m24) return { h: parseInt(m24[1], 10), m: parseInt(m24[2], 10) };
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const mAp = clean.match(/^(\d{1,2})(?::(\d{2}))?\s*(am|pm)$/i);
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if (mAp) {
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let h = parseInt(mAp[1], 10);
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const m = mAp[2] ? parseInt(mAp[2], 10) : 0;
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if (mAp[3].toLowerCase() === "pm" && h !== 12) h += 12;
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if (mAp[3].toLowerCase() === "am" && h === 12) h = 0;
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return { h, m };
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}
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return { h: 18, m: 0 };
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}
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// Brussels is UTC+1 (CET) / UTC+2 (CEST). Same as calendar.ts.
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const BRUSSELS_OFFSET_HOURS = 1;
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/** Extract YYYY-MM-DD from stored date (ISO date-only or full ISO datetime). */
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export function normalizeMeetupDateKey(dateStr: string): string | null {
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const s = dateStr?.trim();
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if (!s) return null;
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const dayPart = s.includes("T") ? s.split("T")[0]! : s.slice(0, 10);
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if (!/^\d{4}-\d{2}-\d{2}$/.test(dayPart)) return null;
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return dayPart;
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}
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/**
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* Returns event start instant in UTC, or Invalid Date if date/time cannot be parsed.
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*/
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export function getMeetupStartUtc(dateStr: string, timeStr: string): Date {
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const key = normalizeMeetupDateKey(dateStr);
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if (!key) return new Date(NaN);
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const parts = key.split("-").map(Number);
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const year = parts[0];
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const month = parts[1];
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const day = parts[2];
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if (!year || !month || !day) return new Date(NaN);
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const t = timeStr?.trim() ? timeStr : "00:00";
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const timeParts = t.split(/\s*[-–]\s*/);
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const { h: startH, m: startM } = parseLocalTime(timeParts[0] ?? "");
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const utcStartH = startH - BRUSSELS_OFFSET_HOURS;
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return new Date(Date.UTC(year, month - 1, day, utcStartH, startM, 0));
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}
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