guh

webui/src/settings/persistence.js

@@ -0,0 +1,36 @@
+import { SETTINGS_COOKIE, SETTINGS_MAX_AGE } from './constants.js';
+
+function parseCookieValue(raw) {
+  try {
+    const decoded = decodeURIComponent(raw ?? '');
+    return JSON.parse(decoded);
+  } catch (error) {
+    console.warn('Failed to parse settings cookie', error); // eslint-disable-line no-console
+    return null;
+  }
+}
+
+export function loadSettings() {
+  if (typeof document === 'undefined') return {};
+  const cookiePrefix = `${SETTINGS_COOKIE}=`;
+  const entry = document.cookie
+    .split(';')
+    .map((part) => part.trim())
+    .find((part) => part.startsWith(cookiePrefix));
+  if (!entry) return {};
+  const raw = entry.substring(cookiePrefix.length);
+  return parseCookieValue(raw) ?? {};
+}
+
+export function saveSettings(settings) {
+  if (typeof document === 'undefined') return false;
+  try {
+    const serialized = encodeURIComponent(JSON.stringify(settings ?? {}));
+    const cookie = `${SETTINGS_COOKIE}=${serialized}; path=/; max-age=${SETTINGS_MAX_AGE}; samesite=strict`;
+    document.cookie = cookie;
+    return true;
+  } catch (error) {
+    console.warn('Failed to write settings cookie', error); // eslint-disable-line no-console
+    return false;
+  }
+}