frontend/src/utils/date.ts - master - Kovalenko/TODO

frontend/src/utils/date.ts
61 строка2 KB
Kovalenko1
Done
29 дек 2025, 11:50
29 дек 2025, 11:50f453b3b
import type { RepeatMode } from '../types/ui';

export function normalizeDateTime(value: string | null | undefined) {
  if (!value) return null;
  const date = new Date(value);
  return Number.isNaN(date.getTime()) ? null : date.toISOString();
}

export function toDateKey(value: string | Date) {
  const date = value instanceof Date ? value : new Date(value);
  if (Number.isNaN(date.getTime())) return '';
  const y = date.getFullYear();
  const m = String(date.getMonth() + 1).padStart(2, '0');
  const d = String(date.getDate()).padStart(2, '0');
  return `${y}-${m}-${d}`;
}

export function toInputValue(value: string | null | undefined) {
  if (!value) return '';
  const date = new Date(value);
  if (Number.isNaN(date.getTime())) return '';
  const offsetDate = new Date(date.getTime() - date.getTimezoneOffset() * 60000);
  return offsetDate.toISOString().slice(0, 16);
}

export function buildOccurrences(base: string, mode: RepeatMode, count: number) {
  if (mode === 'none') return [normalizeDateTime(base)];
  const normalizedCount = Math.max(1, Math.min(count || 1, 12));
  const start = new Date(base);
  if (Number.isNaN(start.getTime())) return [null];

  return Array.from({ length: normalizedCount }).map((_, index) => {
    const next = new Date(start);
    if (mode === 'daily') {
      next.setDate(start.getDate() + index);
    } else if (mode === 'weekly') {
      next.setDate(start.getDate() + index * 7);
    }
    return next.toISOString();
  });
}

export function formatDate(value: string | null) {
  if (!value) return 'н/д';
  const date = new Date(value);
  return date.toLocaleString('ru-RU', { dateStyle: 'medium', timeStyle: 'short' });
}

export function formatTime(value: string | null) {
  if (!value) return 'н/д';
  const date = new Date(value);
  return date.toLocaleTimeString('ru-RU', { hour: '2-digit', minute: '2-digit' });
}

export function formatDayName(date: Date) {
  return date.toLocaleDateString('ru-RU', { weekday: 'short' });
}

export function formatDayNumber(date: Date) {
  return date.toLocaleDateString('ru-RU', { month: 'short', day: 'numeric' });
}