saf directory

mobile/context/AuthContext.tsx

@@ -0,0 +1,27 @@
+import { createContext, useCallback, useContext, useMemo, useState } from 'react';
+import type { ReactNode } from 'react';
+
+export type User = {
+};
+
+type AuthContextValue = {
+  user: User | null;
+};
+
+const AuthContext = createContext<AuthContextValue | null>(null);
+
+export function AuthProvider({ children }: { children: ReactNode }) {
+  const [user, setUser] = useState<User | null>(null);
+
+  const value = useMemo(() => ({ user }), [user]);
+
+  return <AuthContext.Provider value={value}>{children}</AuthContext.Provider>;
+}
+
+export function useAuth(): AuthContextValue {
+  const ctx = useContext(AuthContext);
+  if (!ctx) {
+    throw new Error('useAuth must be used within an AuthProvider');
+  }
+  return ctx;
+}