Обновление приложения

android/src/contexts/AuthContext.tsx

@@ -0,0 +1,50 @@
+import React, { createContext, useContext, useState, useEffect, useCallback } from "react";
+import * as SecureStore from "expo-secure-store";
+import { login as apiLogin, getMe } from "../api/client";
+
+interface User { id: number; username: string; email: string; role: { name: string }; }
+interface AuthCtx { user: User | null; loading: boolean; login(u: string, p: string): Promise<void>; logout(): void; isAdmin: boolean; }
+
+const AuthContext = createContext<AuthCtx | null>(null);
+
+export function AuthProvider({ children }: { children: React.ReactNode }) {
+  const [user, setUser] = useState<User | null>(null);
+  const [loading, setLoading] = useState(true);
+
+  const loadUser = useCallback(async () => {
+    const token = await SecureStore.getItemAsync("access_token");
+    if (!token) { setLoading(false); return; }
+    try {
+      const { data } = await getMe();
+      setUser(data);
+    } catch {
+      await SecureStore.deleteItemAsync("access_token");
+      await SecureStore.deleteItemAsync("refresh_token");
+    } finally { setLoading(false); }
+  }, []);
+
+  useEffect(() => { loadUser(); }, []);
+
+  const login = async (username: string, password: string) => {
+    const { data } = await apiLogin(username, password);
+    await SecureStore.setItemAsync("access_token", data.access_token);
+    await SecureStore.setItemAsync("refresh_token", data.refresh_token);
+    await loadUser();
+  };
+
+  const logout = async () => {
+    await SecureStore.deleteItemAsync("access_token");
+    await SecureStore.deleteItemAsync("refresh_token");
+    setUser(null);
+  };
+
+  const isAdmin = user?.role?.name === "admin";
+
+  return (
+    <AuthContext.Provider value={{ user, loading, login, logout, isAdmin }}>
+      {children}
+    </AuthContext.Provider>
+  );
+}
+
+export const useAuth = () => useContext(AuthContext)!;