Initial LinkedSign platform

frontend/src/contexts/AuthContext.jsx

@@ -0,0 +1,58 @@
+import { createContext, useContext, useState, useEffect, useCallback } from 'react';
+import { login as apiLogin, logout as apiLogout, getMe } from '../api/auth';
+import { updateSignatureAppearancePreference as apiUpdateSignatureAppearancePreference } from '../api/users';
+
+const AuthContext = createContext(null);
+
+export function AuthProvider({ children }) {
+  const [user, setUser] = useState(null);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    const token = localStorage.getItem('accessToken');
+    if (token) {
+      getMe()
+        .then(({ data }) => setUser(data.data.user))
+        .catch(() => {
+          localStorage.removeItem('accessToken');
+          localStorage.removeItem('refreshToken');
+        })
+        .finally(() => setLoading(false));
+    } else {
+      setLoading(false);
+    }
+  }, []);
+
+  const login = useCallback(async (email, password) => {
+    const { data } = await apiLogin({ email, password });
+    const { accessToken, refreshToken, user: userData } = data.data;
+    localStorage.setItem('accessToken', accessToken);
+    localStorage.setItem('refreshToken', refreshToken);
+    setUser(userData);
+    return userData;
+  }, []);
+
+  const logout = useCallback(async () => {
+    const refreshToken = localStorage.getItem('refreshToken');
+    try { await apiLogout(refreshToken); } catch { /* ignore */ }
+    localStorage.removeItem('accessToken');
+    localStorage.removeItem('refreshToken');
+    setUser(null);
+  }, []);
+
+  const updateSignatureAppearancePreference = useCallback(async (signaturePreferences) => {
+    const { data } = await apiUpdateSignatureAppearancePreference(signaturePreferences);
+    setUser((currentUser) => currentUser
+      ? { ...currentUser, signaturePreferences: data.data.signaturePreferences }
+      : currentUser);
+    return data.data.signaturePreferences;
+  }, []);
+
+  return (
+    <AuthContext.Provider value={{ user, loading, login, logout, updateSignatureAppearancePreference }}>
+      {children}
+    </AuthContext.Provider>
+  );
+}
+
+export const useAuth = () => useContext(AuthContext);