feat: set labels in NodeContext/Info

examples/base/main.cpp

@@ -9,23 +9,21 @@
 
 using namespace std;
 
-NodeContext ctx;
+NodeContext ctx({
+	{"app", "base"},
+	{"role", "demo"}
+});
 NetworkManager network(ctx);
 TaskManager taskManager(ctx);
 ClusterManager cluster(ctx, taskManager);
 ApiServer apiServer(ctx, taskManager, ctx.config.api_server_port);
 
 void setup() {
+    Serial.begin(115200);
+
 	// Setup WiFi first
 	network.setupWiFi();
 
-	// Add example labels for this node
-	auto it = ctx.memberList->find(ctx.hostname);
-	if (it != ctx.memberList->end()) {
-		it->second.labels["app"] = "base";
-		it->second.labels["role"] = "demo";
-	}
-
 	// Initialize and start all tasks
 	taskManager.initialize();
 	

examples/neopixel/main.cpp

@@ -339,7 +339,12 @@ private:
   uint8_t brightness;
 };
 
-NodeContext ctx;
+NodeContext ctx({
+  {"app", "neopixel"},
+  {"device", "light"},
+  {"pixels", String(NEOPIXEL_COUNT)},
+  {"pin", String(NEOPIXEL_PIN)}
+});
 NetworkManager network(ctx);
 TaskManager taskManager(ctx);
 ClusterManager cluster(ctx, taskManager);
@@ -347,16 +352,9 @@ ApiServer apiServer(ctx, taskManager, ctx.config.api_server_port);
 NeoPixelService neoService(ctx, taskManager, NEOPIXEL_COUNT, NEOPIXEL_PIN, NEOPIXEL_TYPE);
 
 void setup() {
-  network.setupWiFi();
+  Serial.begin(115200);
 
-  // Add example labels for this node
-  auto it = ctx.memberList->find(ctx.hostname);
-  if (it != ctx.memberList->end()) {
-    it->second.labels["app"] = "neopixel";
-    it->second.labels["device"] = "light";
-    it->second.labels["pixels"] = String(NEOPIXEL_COUNT);
-    it->second.labels["pin"] = String(NEOPIXEL_PIN);
-  }
+  network.setupWiFi();
 
   taskManager.initialize();
 

examples/relay/main.cpp

@@ -96,7 +96,11 @@ private:
     bool relayOn;
 };
 
-NodeContext ctx;
+NodeContext ctx({
+    {"app", "relay"},
+    {"device", "actuator"},
+    {"pin", String(RELAY_PIN)}
+});
 NetworkManager network(ctx);
 TaskManager taskManager(ctx);
 ClusterManager cluster(ctx, taskManager);
@@ -104,17 +108,11 @@ ApiServer apiServer(ctx, taskManager, ctx.config.api_server_port);
 RelayService relayService(ctx, taskManager, RELAY_PIN);
 
 void setup() {
+    Serial.begin(115200);
+
     // Setup WiFi first
     network.setupWiFi();
 
-    // Add example labels for this node
-    auto it = ctx.memberList->find(ctx.hostname);
-    if (it != ctx.memberList->end()) {
-        it->second.labels["app"] = "relay";
-        it->second.labels["device"] = "actuator";
-        it->second.labels["pin"] = String(RELAY_PIN);
-    }
-
     // Initialize and start all tasks
     taskManager.initialize();
 

include/NodeContext.h

@@ -5,15 +5,18 @@
 #include "NodeInfo.h"
 #include <functional>
 #include <string>
+#include <initializer_list>
 #include "Config.h"
 
 class NodeContext {
 public:
     NodeContext();
+    NodeContext(std::initializer_list<std::pair<String, String>> initialLabels);
     ~NodeContext();
     WiFiUDP* udp;
     String hostname;
     IPAddress localIP;
+    NodeInfo self;
     std::map<String, NodeInfo>* memberList;
     Config config;
 

src/ApiServer.cpp

@@ -103,6 +103,11 @@ void ApiServer::onSystemStatusRequest(AsyncWebServerRequest *request) {
             for (const auto& kv : it->second.labels) {
                 labelsObj[kv.first.c_str()] = kv.second;
             }
+        } else if (!ctx.self.labels.empty()) {
+            JsonObject labelsObj = doc["labels"].to<JsonObject>();
+            for (const auto& kv : ctx.self.labels) {
+                labelsObj[kv.first.c_str()] = kv.second;
+            }
         }
     }
     String json;

src/NetworkManager.cpp

@@ -14,7 +14,6 @@ void NetworkManager::setHostnameFromMac() {
 }
 
 void NetworkManager::setupWiFi() {
-    Serial.begin(115200);
     WiFi.mode(WIFI_STA);
     WiFi.begin(ctx.config.wifi_ssid.c_str(), ctx.config.wifi_password.c_str());
     Serial.println("[WiFi] Connecting to AP...");
@@ -43,18 +42,26 @@ void NetworkManager::setupWiFi() {
     Serial.println(ctx.hostname);
     Serial.printf("[WiFi] UDP listening on port %d\n", ctx.config.udp_port);
 
-    // Register this node in the memberlist via event system
-    NodeInfo self;
-    self.hostname = ctx.hostname;
+    // Populate self NodeInfo
+    ctx.self.hostname = ctx.hostname;
     if (WiFi.isConnected()) {
-        self.ip = WiFi.localIP();
+        ctx.self.ip = WiFi.localIP();
     } else {
-        // Fallback to AP IP if not connected
-        self.ip = WiFi.softAPIP();
+        ctx.self.ip = WiFi.softAPIP();
     }
-    self.lastSeen = millis();
-    self.status = NodeInfo::ACTIVE;
-    // Initialize a default label for demonstration; users can modify at runtime
-    self.labels["hostname"] = ctx.hostname;
-    ctx.fire("node_discovered", &self);
+    ctx.self.lastSeen = millis();
+    ctx.self.status = NodeInfo::ACTIVE;
+    ctx.self.labels["hostname"] = ctx.hostname;
+
+    // Ensure member list has an entry for this node
+    auto &memberList = *ctx.memberList;
+    auto existing = memberList.find(ctx.hostname);
+    if (existing == memberList.end()) {
+        memberList[ctx.hostname] = ctx.self;
+    } else {
+        existing->second = ctx.self;
+    }
+
+    // Notify listeners that the node is (re)discovered
+    ctx.fire("node_discovered", &ctx.self);
 }

src/NodeContext.cpp

@@ -4,6 +4,16 @@ NodeContext::NodeContext() {
     udp = new WiFiUDP();
     memberList = new std::map<String, NodeInfo>();
     hostname = "";
+    self.hostname = "";
+    self.ip = IPAddress();
+    self.lastSeen = 0;
+    self.status = NodeInfo::INACTIVE;
+}
+
+NodeContext::NodeContext(std::initializer_list<std::pair<String, String>> initialLabels) : NodeContext() {
+    for (const auto& kv : initialLabels) {
+        self.labels[kv.first] = kv.second;
+    }
 }
 
 NodeContext::~NodeContext() {