performance improvments

apps/admin/src/app/page.tsx

@@ -1,99 +1,88 @@
 "use client";
 
-import { useEffect, useState } from "react";
 import { Users, CreditCard, CalendarCheck, TrendingUp } from "lucide-react";
 import { StatsCard } from "@/components/ui/StatsCard";
+import { StatsCardSkeleton } from "@/components/ui/skeleton";
 import { UserManagement } from "@/components/users/UserManagement";
 import { AnalyticsDashboard } from "@/components/analytics/AnalyticsDashboard";
-import axios from "axios";
-
-interface DashboardStats {
-  totalUsers: number;
-  activeClients: number;
-  totalRevenue: number;
-  revenueGrowth: number;
-}
+import { useDashboardStats } from "@/hooks/use-api";
 
 export default function Home() {
-  const [stats, setStats] = useState<DashboardStats>({
-    totalUsers: 0,
-    activeClients: 0,
-    totalRevenue: 0,
-    revenueGrowth: 0,
-  });
-  const [loading, setLoading] = useState(true);
-
-  useEffect(() => {
-    const fetchStats = async () => {
-      try {
-        const response = await axios.get("/api/admin/stats");
-        setStats(response.data);
-      } catch (error) {
-        console.error("Failed to fetch dashboard stats:", error);
-      } finally {
-        setLoading(false);
-      }
-    };
-
-    fetchStats();
-  }, []);
+  const { data: stats, isLoading } = useDashboardStats();
 
   const formatCurrency = (value: number) => {
     return new Intl.NumberFormat("en-US", {
       style: "currency",
       currency: "USD",
-    }).format(value);
+    }).format(value || 0);
   };
 
   return (
     <div className="space-y-8">
       <div>
         <h2 className="text-3xl font-bold text-slate-900">Dashboard</h2>
-        <p className="text-slate-500 mt-2">Welcome back, here's what's happening today.</p>
+        <p className="text-slate-500 mt-2">
+          Welcome back, here's what's happening today.
+        </p>
       </div>
 
       <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
-        <StatsCard
-          title="Total Users"
-          value={loading ? "..." : stats.totalUsers}
-          change="+12%" // Placeholder for now as we don't track historical growth yet
-          trend="up"
-          icon={Users}
-          color="blue"
-        />
-        <StatsCard
-          title="Active Clients"
-          value={loading ? "..." : stats.activeClients}
-          change="+5%"
-          trend="up"
-          icon={CalendarCheck}
-          color="green"
-        />
-        <StatsCard
-          title="Revenue"
-          value={loading ? "..." : formatCurrency(stats.totalRevenue)}
-          change={`${stats.revenueGrowth > 0 ? "+" : ""}${stats.revenueGrowth}%`}
-          trend={stats.revenueGrowth >= 0 ? "up" : "down"}
-          icon={CreditCard}
-          color="purple"
-        />
-        <StatsCard
-          title="Growth"
-          value="24%" // Placeholder
-          change="-2%"
-          trend="down"
-          icon={TrendingUp}
-          color="orange"
-        />
+        {isLoading ? (
+          <>
+            <StatsCardSkeleton />
+            <StatsCardSkeleton />
+            <StatsCardSkeleton />
+            <StatsCardSkeleton />
+          </>
+        ) : (
+          <>
+            <StatsCard
+              title="Total Users"
+              value={stats?.totalUsers ?? 0}
+              change="+12%"
+              trend="up"
+              icon={Users}
+              color="blue"
+            />
+            <StatsCard
+              title="Active Clients"
+              value={stats?.activeClients ?? 0}
+              change="+5%"
+              trend="up"
+              icon={CalendarCheck}
+              color="green"
+            />
+            <StatsCard
+              title="Revenue"
+              value={formatCurrency(stats?.totalRevenue ?? 0)}
+              change={`${(stats?.revenueGrowth ?? 0) > 0 ? "+" : ""}${stats?.revenueGrowth ?? 0}%`}
+              trend={(stats?.revenueGrowth ?? 0) >= 0 ? "up" : "down"}
+              icon={CreditCard}
+              color="purple"
+            />
+            <StatsCard
+              title="Growth"
+              value="24%"
+              change="-2%"
+              trend="down"
+              icon={TrendingUp}
+              color="orange"
+            />
+          </>
+        )}
       </div>
 
       <div className="flex flex-col gap-8">
         <div className="bg-white rounded-xl shadow-sm border border-slate-100 p-6">
-          <h3 className="text-xl font-bold text-slate-900 mb-6">Recent Activity</h3>
+          <h3 className="text-xl font-bold text-slate-900 mb-6">
+            Recent Activity
+          </h3>
           <UserManagement />
         </div>
         <div className="bg-white rounded-xl shadow-sm border border-slate-100 p-6">
-          <h3 className="text-xl font-bold text-slate-900 mb-6">Quick Analytics</h3>
+          <h3 className="text-xl font-bold text-slate-900 mb-6">
+            Quick Analytics
+          </h3>
           <AnalyticsDashboard />
         </div>
       </div>