Initial commit - Rentall App

- Full-stack rental marketplace application
- React frontend with TypeScript
- Node.js/Express backend with JWT authentication
- Features: item listings, rental requests, calendar availability, user profiles

frontend/src/contexts/AuthContext.tsx

@@ -0,0 +1,76 @@
+import React, { createContext, useState, useContext, useEffect, ReactNode } from 'react';
+import { User } from '../types';
+import { authAPI, userAPI } from '../services/api';
+
+interface AuthContextType {
+  user: User | null;
+  loading: boolean;
+  login: (email: string, password: string) => Promise<void>;
+  register: (data: any) => Promise<void>;
+  logout: () => void;
+  updateUser: (user: User) => void;
+}
+
+const AuthContext = createContext<AuthContextType | undefined>(undefined);
+
+export const useAuth = () => {
+  const context = useContext(AuthContext);
+  if (!context) {
+    throw new Error('useAuth must be used within an AuthProvider');
+  }
+  return context;
+};
+
+interface AuthProviderProps {
+  children: ReactNode;
+}
+
+export const AuthProvider: React.FC<AuthProviderProps> = ({ children }) => {
+  const [user, setUser] = useState<User | null>(null);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    const token = localStorage.getItem('token');
+    if (token) {
+      userAPI.getProfile()
+        .then(response => {
+          setUser(response.data);
+        })
+        .catch(() => {
+          localStorage.removeItem('token');
+        })
+        .finally(() => {
+          setLoading(false);
+        });
+    } else {
+      setLoading(false);
+    }
+  }, []);
+
+  const login = async (email: string, password: string) => {
+    const response = await authAPI.login({ email, password });
+    localStorage.setItem('token', response.data.token);
+    setUser(response.data.user);
+  };
+
+  const register = async (data: any) => {
+    const response = await authAPI.register(data);
+    localStorage.setItem('token', response.data.token);
+    setUser(response.data.user);
+  };
+
+  const logout = () => {
+    localStorage.removeItem('token');
+    setUser(null);
+  };
+
+  const updateUser = (user: User) => {
+    setUser(user);
+  };
+
+  return (
+    <AuthContext.Provider value={{ user, loading, login, register, logout, updateUser }}>
+      {children}
+    </AuthContext.Provider>
+  );
+};