feat: switch agent fetching to the server side

this brings the benefit of fitting in the revalidator lifecycle we have
created via the useLiveData hook.

app/server/index.ts

@@ -74,11 +74,17 @@ export default await createHonoServer({
 		return appLoadContext;
 	},
 
-	configure(server, { upgradeWebSocket }) {
-		if (appLoadContext.agents !== undefined) {
-			// We need this since we cannot pass the WSEvents context
-			(upgradeWebSocket as UpgradeWebSocket<WebSocket>)(
-				appLoadContext.agents.configureSocket,
+	configure(app, { upgradeWebSocket }) {
+		const agentManager = appLoadContext.agents;
+		if (agentManager) {
+			app.get(
+				`${__PREFIX__}/_dial`,
+				// We need this since we cannot pass the WSEvents context
+				// Also important to not pass the callback directly
+				// since we need to retain `this` context
+				(upgradeWebSocket as UpgradeWebSocket<WebSocket>)((c) =>
+					agentManager.configureSocket(c),
+				),
 			);
 		}
 	},

app/server/web/agent.ts

@@ -49,10 +49,20 @@ class AgentManager {
 		return Array.from(this.agents.keys());
 	}
 
+	lookup(nodeIds: string[]) {
+		const entries = this.cache.toJSON();
+		const missing = nodeIds.filter((nodeId) => !entries[nodeId]);
+		if (missing.length > 0) {
+			this.requestData(missing);
+		}
+
+		return entries;
+	}
+
 	// Request data from all connected agents
 	// This does not return anything, but caches the data which then needs to be
 	// queried by the caller separately.
-	requestData(nodeList: string[]) {
+	private requestData(nodeList: string[]) {
 		const NodeIDs = [...new Set(nodeList)];
 		NodeIDs.map((node) => {
 			log.debug('agent', 'Requesting agent data for %s', node);