chore: import upstream snapshot with attribution

apps/webapp/app/services/preferences/uiPreferences.server.ts

@@ -0,0 +1,56 @@
+import { createCookieSessionStorage } from "@remix-run/node";
+import { env } from "~/env.server";
+
+export const uiPreferencesStorage = createCookieSessionStorage({
+  cookie: {
+    name: "__ui_prefs",
+    sameSite: "lax",
+    path: "/",
+    httpOnly: true,
+    secrets: [env.SESSION_SECRET],
+    secure: env.NODE_ENV === "production",
+    maxAge: 60 * 60 * 24 * 365, // 1 year
+  },
+});
+
+export function getUiPreferencesSession(request: Request) {
+  return uiPreferencesStorage.getSession(request.headers.get("Cookie"));
+}
+
+export async function getUsefulLinksPreference(request: Request): Promise<boolean | undefined> {
+  const session = await getUiPreferencesSession(request);
+  return session.get("showUsefulLinks");
+}
+
+export async function setUsefulLinksPreference(show: boolean, request: Request) {
+  const session = await getUiPreferencesSession(request);
+  session.set("showUsefulLinks", show);
+  return session;
+}
+
+export async function getRootOnlyFilterPreference(request: Request): Promise<boolean> {
+  const session = await getUiPreferencesSession(request);
+  const rootOnly = session.get("rootOnly");
+  if (rootOnly === undefined) {
+    return false;
+  }
+  return rootOnly;
+}
+
+export async function setRootOnlyFilterPreference(rootOnly: boolean, request: Request) {
+  const session = await getUiPreferencesSession(request);
+  session.set("rootOnly", rootOnly);
+  return session;
+}
+
+export async function getTimezonePreference(request: Request): Promise<string> {
+  const session = await getUiPreferencesSession(request);
+  const timezone = session.get("timezone");
+  return typeof timezone === "string" ? timezone : "UTC";
+}
+
+export async function setTimezonePreference(timezone: string, request: Request) {
+  const session = await getUiPreferencesSession(request);
+  session.set("timezone", timezone);
+  return session;
+}