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ems-frontend/ems-monitoring-system/src/utils/formatter.ts

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+import { format } from 'date-fns';
+
+/**
+ * Formats a date-time string or Date object into a standardized "yyyy-MM-dd HH:mm:ss" format.
+ * If the input is invalid or null, it returns an empty string.
+ *
+ * @param dateTime The date-time to format (string, Date, or null/undefined).
+ * @returns The formatted date-time string or an empty string.
+ */
+export function formatDateTime(dateTime: string | Date | null | undefined): string {
+  if (!dateTime) {
+    return '';
+  }
+  try {
+    return format(new Date(dateTime), 'yyyy-MM-dd HH:mm:ss');
+  } catch (error) {
+    console.error('Error formatting date:', error);
+    return '';
+  }
+}