chore: properly count agents

src/cache.ts

···
 	}
 
 	/**
+	 * Gets total count of unique user agents
+	 * @returns Total count of unique user agents
+	 */
+	async getUserAgentCount(): Promise<number> {
+		const result = this.db
+			.query(
+				`SELECT COUNT(*) as count FROM user_agent_stats WHERE user_agent IS NOT NULL`,
+			)
+			.get() as { count: number };
+		return result?.count || 0;
+	}
+
+	/**
 	 * Gets referer stats from cumulative stats table
 	 * @returns Referer host data sorted by hits
 	 */

src/dashboard.html

···
         }
 
         const stats = await statsRes.json();
-        const userAgents = await uaRes.json();
+        const uaData = await uaRes.json();
         const referers = await refRes.json();
 
         // Update stats cards
         document.getElementById('totalRequests').textContent = formatNumber(stats.totalRequests || 0);
         document.getElementById('avgResponseTime').textContent = formatMs(stats.averageResponseTime);
         document.getElementById('uptime').textContent = stats.uptime ? `${stats.uptime.toFixed(1)}%` : '-';
-        document.getElementById('uniqueAgents').textContent = formatNumber(userAgents.length || 0);
+        document.getElementById('uniqueAgents').textContent = formatNumber(uaData.totalCount || 0);
 
         // Update chart
         currentTrafficData = trafficData;
         initChart(trafficData);
 
         // Update user agents and referers
-        allUserAgents = userAgents;
-        renderTrafficSources(userAgents, referers);
+        allUserAgents = uaData.userAgents;
+        renderTrafficSources(uaData.userAgents, referers);
         updateLastUpdated();
 
       } catch (e) {
···
             return;
           }
           const stats = await statsRes.json();
-          const userAgents = await uaRes.json();
+          const uaData = await uaRes.json();
           const referers = await refRes.json();
           
           document.getElementById('totalRequests').textContent = formatNumber(stats.totalRequests || 0);
           document.getElementById('avgResponseTime').textContent = formatMs(stats.averageResponseTime);
           document.getElementById('uptime').textContent = stats.uptime ? `${stats.uptime.toFixed(1)}%` : '-';
-          document.getElementById('uniqueAgents').textContent = formatNumber(userAgents.length || 0);
+          document.getElementById('uniqueAgents').textContent = formatNumber(uaData.totalCount || 0);
           
           currentTrafficData = trafficData;
           initChart(trafficData);
-          allUserAgents = userAgents;
-          renderTrafficSources(userAgents, referers);
+          allUserAgents = uaData.userAgents;
+          renderTrafficSources(uaData.userAgents, referers);
           updateLastUpdated();
           showLoading(false);
         });

src/handlers/index.ts

···
 	_request,
 	recordAnalytics,
 ) => {
-	const userAgents = await cache.getUserAgents();
+	const [userAgents, totalCount] = await Promise.all([
+		cache.getUserAgents(),
+		cache.getUserAgentCount(),
+	]);
 	await recordAnalytics(200);
-	return Response.json(userAgents);
+	return Response.json({ userAgents, totalCount });
 };
 
 export const handleGetReferers: RouteHandlerWithAnalytics = async (

src/routes/api-routes.ts

···
 				{
 					summary: "Get user agents statistics",
 					description:
-						"Cumulative list of user agents accessing the service with hit counts",
+						"Cumulative list of user agents accessing the service with hit counts (top 50) and total unique count",
 					tags: ["Analytics"],
 					responses: Object.fromEntries([
 						apiResponse(200, "User agents data retrieved successfully", {
-							type: "array",
-							items: {
-								type: "object",
-								properties: {
-									userAgent: { type: "string", example: "Mozilla/5.0..." },
-									hits: { type: "number", example: 123 },
+							type: "object",
+							properties: {
+								userAgents: {
+									type: "array",
+									items: {
+										type: "object",
+										properties: {
+											userAgent: { type: "string", example: "Mozilla/5.0..." },
+											hits: { type: "number", example: 123 },
+										},
+									},
 								},
+								totalCount: { type: "number", example: 150 },
 							},
 						}),
 					]),