time

1export const MINUTE_STEP = 5;
2 
3export const HOUR_OPTIONS: string[] = Array.from({ length: 24 }, (_, i) => String(i).padStart(2, '0'));
4 
5export const MINUTE_OPTIONS: string[] = Array.from({ length: 60 / MINUTE_STEP }, (_, i) =>
6  String(i * MINUTE_STEP).padStart(2, '0'),
7);
8 
9export type TimeRangeValue = { start: string; end: string };
10 
11export function splitTime(time: string): { hour: string; minute: string } {
12  const [hour = '', minute = ''] = time.split(':');
13  return { hour, minute };
14}
15 
16export function joinTime(hour: string, minute: string): string {
17  if (!hour && !minute) return '';
18  return `${hour || '00'}:${minute || '00'}`;
19}
20 
21export function toMinutes(time: string): number | null {
22  const { hour, minute } = splitTime(time);
23  if (!hour || !minute) return null;
24  const h = Number(hour);
25  const m = Number(minute);
26  if (Number.isNaN(h) || Number.isNaN(m)) return null;
27  return h * 60 + m;
28}
29 
30export function fromMinutes(total: number): string {
31  const clamped = Math.max(0, Math.min(total, 24 * 60 - MINUTE_STEP));
32  const h = Math.floor(clamped / 60);
33  const m = clamped % 60;
34  return `${String(h).padStart(2, '0')}:${String(m).padStart(2, '0')}`;
35}
36 
37export function addOneHour(time: string): string {
38  const minutes = toMinutes(time);
39  if (minutes === null) return time;
40  return fromMinutes(minutes + 60);
41}
42 
43export function nextSlot(time: string): string {
44  const minutes = toMinutes(time);
45  if (minutes === null) return time;
46  return fromMinutes(minutes + MINUTE_STEP);
47}
48 
49export function isHourDisabled(hour: string, bounds?: { min?: string; max?: string }): boolean {
50  if (!hour) return false;
51  const h = Number(hour);
52  if (Number.isNaN(h)) return false;
53  const hourStart = h * 60;
54  const hourEnd = h * 60 + 55;
55  const min = bounds?.min ? toMinutes(bounds.min) : null;
56  const max = bounds?.max ? toMinutes(bounds.max) : null;
57  if (min !== null && hourEnd < min) return true;
58  if (max !== null && hourStart > max) return true;
59  return false;
60}
61 
62export function isMinuteDisabled(minute: string, hour: string, bounds?: { min?: string; max?: string }): boolean {
63  if (!hour || !minute) return false;
64  const t = toMinutes(joinTime(hour, minute));
65  if (t === null) return false;
66  const min = bounds?.min ? toMinutes(bounds.min) : null;
67  const max = bounds?.max ? toMinutes(bounds.max) : null;
68  if (min !== null && t < min) return true;
69  if (max !== null && t > max) return true;
70  return false;
71}