mirror of
https://github.com/multipleof4/lynchmark.git
synced 2026-09-18 20:05:44 +00:00
49 lines
1.8 KiB
JavaScript
49 lines
1.8 KiB
JavaScript
async function findAvailableSlots(cal1, cal2, constraints) {
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const { DateTime } = await import('https://esm.sh/luxon@3.4.4');
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const { durationMinutes, searchRange, workHours } = constraints;
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const s = DateTime.fromISO(searchRange.start, { zone: 'utc' });
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const e = DateTime.fromISO(searchRange.end, { zone: 'utc' });
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const dur = { minutes: durationMinutes };
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const busy = [...cal1, ...cal2]
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.map(x => [DateTime.fromISO(x.start, { zone: 'utc' }), DateTime.fromISO(x.end, { zone: 'utc' })])
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.filter(([a, b]) => b > s && a < e)
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.map(([a, b]) => [a < s ? s : a, b > e ? e : b])
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.sort((a, b) => a[0] - b[0]);
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const merged = [];
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for (const [a, b] of busy) {
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const last = merged[merged.length - 1];
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if (!last || a > last[1]) merged.push([a, b]);
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else if (b > last[1]) last[1] = b;
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}
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const [wsh, wsm] = workHours.start.split(':').map(Number);
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const [weh, wem] = workHours.end.split(':').map(Number);
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const slots = [];
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for (let day = s.startOf('day'); day <= e; day = day.plus({ days: 1 })) {
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const ws = day.set({ hour: wsh, minute: wsm, second: 0, millisecond: 0 });
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const we = day.set({ hour: weh, minute: wem, second: 0, millisecond: 0 });
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const winS = ws < s ? s : ws;
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const winE = we > e ? e : we;
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if (winS >= winE) continue;
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let cur = winS;
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for (const [a, b] of merged) {
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if (b <= cur) continue;
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if (a >= winE) break;
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if (a > cur) add(cur, a < winE ? a : winE);
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if (b > cur) cur = b > winE ? winE : b;
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if (cur >= winE) break;
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}
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if (cur < winE) add(cur, winE);
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}
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function add(a, b) {
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let t = a;
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while (t.plus(dur) <= b) {
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const n = t.plus(dur);
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slots.push({ start: t.toUTC().toISO(), end: n.toUTC().toISO() });
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t = n;
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}
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}
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return slots;
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}
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export default findAvailableSlots;
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// Generation time: 191.955s
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// Result: PASS
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