first commit

hooks/useUserActivity.ts

@@ -0,0 +1,45 @@
+"use client";
+
+import { useState, useEffect } from "react";
+
+interface UserActivityData {
+  activeUsers: number;
+  inactiveUsers: number;
+  totalUsers: number;
+}
+
+export function useUserActivity() {
+  const [activity, setActivity] = useState<UserActivityData | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  const fetchActivity = async () => {
+    try {
+      setLoading(true);
+      setError(null);
+      
+      const response = await fetch("/api/user-activity");
+      if (!response.ok) {
+        throw new Error("Erreur lors du chargement de l'activité des utilisateurs");
+      }
+      
+      const data = await response.json();
+      setActivity(data);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "Erreur inconnue");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  useEffect(() => {
+    fetchActivity();
+  }, []);
+
+  return {
+    activity,
+    loading,
+    error,
+    refetch: fetchActivity
+  };
+}