expressjs -> nextjs

nextjs/src/lib/format.js

@@ -0,0 +1,70 @@
+export function formatBytes(bytes) {
+  const size = Number(bytes) || 0;
+  if (size < 1024) {
+    return `${size} B`;
+  }
+
+  const units = ['KB', 'MB', 'GB', 'TB'];
+  let value = size / 1024;
+  let unitIndex = 0;
+
+  while (value >= 1024 && unitIndex < units.length - 1) {
+    value /= 1024;
+    unitIndex += 1;
+  }
+
+  return `${value.toFixed(value < 10 ? 1 : 0)} ${units[unitIndex]}`;
+}
+
+export function formatTimestamp(timestamp) {
+  const value = Number(timestamp);
+  if (!Number.isFinite(value) || value <= 0) {
+    return '-';
+  }
+  return new Date(value).toLocaleString('de-DE');
+}
+
+export function formatCountdown(timestamp) {
+  const expiresAt = Number(timestamp) || 0;
+  const deltaMinutes = Math.floor(Math.max(0, expiresAt - Date.now()) / 60_000);
+  const hours = Math.floor(deltaMinutes / 60);
+  const days = Math.floor(hours / 24);
+
+  if (days > 0) {
+    return `${days}d ${hours % 24}h`;
+  }
+  if (hours > 0) {
+    return `${hours}h ${deltaMinutes % 60}m`;
+  }
+  return `${deltaMinutes}m`;
+}
+
+export function parseLogDetail(detailText) {
+  if (!detailText) {
+    return [];
+  }
+
+  try {
+    const parsed = JSON.parse(detailText);
+    if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) {
+      return [{ key: 'detail', value: String(detailText) }];
+    }
+    return Object.entries(parsed).map(([key, value]) => ({
+      key,
+      value: String(value),
+    }));
+  } catch {
+    return [{ key: 'detail', value: String(detailText) }];
+  }
+}
+
+export function readSearchParam(searchParams, key) {
+  const rawValue = searchParams?.[key];
+  if (Array.isArray(rawValue)) {
+    return String(rawValue[0] || '');
+  }
+  if (typeof rawValue === 'string') {
+    return rawValue;
+  }
+  return '';
+}