Changes

src/hooks/useAuth.tsx

@@ -0,0 +1,97 @@
+import { useEffect, useState, createContext, useContext, ReactNode } from 'react';
+import { User, Session } from '@supabase/supabase-js';
+import { supabase } from '@/integrations/supabase/client';
+
+interface AuthContextType {
+  user: User | null;
+  session: Session | null;
+  loading: boolean;
+  isAdmin: boolean;
+  signIn: (email: string, password: string) => Promise<{ error: Error | null }>;
+  signUp: (email: string, password: string, name: string) => Promise<{ error: Error | null }>;
+  signOut: () => Promise<void>;
+}
+
+const AuthContext = createContext<AuthContextType | undefined>(undefined);
+
+export function AuthProvider({ children }: { children: ReactNode }) {
+  const [user, setUser] = useState<User | null>(null);
+  const [session, setSession] = useState<Session | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [isAdmin, setIsAdmin] = useState(false);
+
+  useEffect(() => {
+    const { data: { subscription } } = supabase.auth.onAuthStateChange(
+      (event, session) => {
+        setSession(session);
+        setUser(session?.user ?? null);
+        
+        if (session?.user) {
+          setTimeout(() => {
+            checkAdminRole(session.user.id);
+          }, 0);
+        } else {
+          setIsAdmin(false);
+        }
+      }
+    );
+
+    supabase.auth.getSession().then(({ data: { session } }) => {
+      setSession(session);
+      setUser(session?.user ?? null);
+      if (session?.user) {
+        checkAdminRole(session.user.id);
+      }
+      setLoading(false);
+    });
+
+    return () => subscription.unsubscribe();
+  }, []);
+
+  const checkAdminRole = async (userId: string) => {
+    const { data } = await supabase
+      .from('user_roles')
+      .select('role')
+      .eq('user_id', userId)
+      .eq('role', 'admin')
+      .maybeSingle();
+    
+    setIsAdmin(!!data);
+  };
+
+  const signIn = async (email: string, password: string) => {
+    const { error } = await supabase.auth.signInWithPassword({ email, password });
+    return { error };
+  };
+
+  const signUp = async (email: string, password: string, name: string) => {
+    const redirectUrl = `${window.location.origin}/`;
+    const { error } = await supabase.auth.signUp({
+      email,
+      password,
+      options: {
+        emailRedirectTo: redirectUrl,
+        data: { name }
+      }
+    });
+    return { error };
+  };
+
+  const signOut = async () => {
+    await supabase.auth.signOut();
+  };
+
+  return (
+    <AuthContext.Provider value={{ user, session, loading, isAdmin, signIn, signUp, signOut }}>
+      {children}
+    </AuthContext.Provider>
+  );
+}
+
+export function useAuth() {
+  const context = useContext(AuthContext);
+  if (context === undefined) {
+    throw new Error('useAuth must be used within an AuthProvider');
+  }
+  return context;
+}