Initial commit - SaveTheMoment Atlas Basis-Setup

lib/date-utils.ts

@@ -0,0 +1,42 @@
+export function formatDate(date: Date | string): string {
+  const d = typeof date === 'string' ? new Date(date) : date;
+  
+  if (isNaN(d.getTime())) {
+    return 'Ungültiges Datum';
+  }
+  
+  const day = d.getDate().toString().padStart(2, '0');
+  const month = (d.getMonth() + 1).toString().padStart(2, '0');
+  const year = d.getFullYear();
+  
+  return `${day}.${month}.${year}`;
+}
+
+export function formatDateTime(date: Date | string): string {
+  const d = typeof date === 'string' ? new Date(date) : date;
+  
+  if (isNaN(d.getTime())) {
+    return 'Ungültiges Datum';
+  }
+  
+  const dateStr = formatDate(d);
+  const hours = d.getHours().toString().padStart(2, '0');
+  const minutes = d.getMinutes().toString().padStart(2, '0');
+  
+  return `${dateStr}, ${hours}:${minutes}`;
+}
+
+export function parseDateString(dateString: string): Date | null {
+  if (!dateString) return null;
+
+  // Try German format: DD.MM.YYYY or D.M.YYYY
+  const germanMatch = dateString.match(/(\d{1,2})\.(\d{1,2})\.(\d{4})/);
+  if (germanMatch) {
+    const [, day, month, year] = germanMatch;
+    return new Date(parseInt(year), parseInt(month) - 1, parseInt(day));
+  }
+
+  // Try ISO format or other standard formats
+  const date = new Date(dateString);
+  return isNaN(date.getTime()) ? null : date;
+}