feat: add Prometheus exporter extension

.github/workflows/ci.yml

@@ -233,6 +233,10 @@ jobs:
               # --ignore-scripts prevents build on Windows (only for unix-dgram, so doesn't matter, others have pre-builds)
               run: pnpm i --frozen-lockfile ${{ matrix.os == 'windows-latest' && '--ignore-scripts' || '' }}
 
+            - name: Build zigbee-herdsman (Windows only)
+              if: matrix.os == 'windows-latest'
+              run: pnpm --filter zigbee-herdsman run build
+
             - name: Build
               run: pnpm run build
 

.gitignore

@@ -81,3 +81,4 @@ data-bench
 
 # commit-user-lookup.json
 scripts/commit-user-lookup.json
+.claude/

biome.json

@@ -1,5 +1,5 @@
 {
-    "$schema": "https://biomejs.dev/schemas/2.4.10/schema.json",
+    "$schema": "https://biomejs.dev/schemas/2.4.12/schema.json",
     "vcs": {
         "enabled": true,
         "clientKind": "git",

lib/controller.ts

@@ -96,6 +96,12 @@ export class Controller {
             this.extensions.add(new HomeAssistant(...this.extensionArgs));
         }
 
+        if (settings.get().prometheus_exporter.enabled) {
+            const {PrometheusExporter} = await import("./extension/prometheusExporter.js");
+
+            this.extensions.add(new PrometheusExporter(...this.extensionArgs));
+        }
+
         this.state.start();
 
         if (abortSignal.aborted) {

lib/eventBus.ts

@@ -19,6 +19,7 @@ interface EventBusMap {
     exposesChanged: [data: eventdata.ExposesChanged];
     deviceLeave: [data: eventdata.DeviceLeave];
     deviceMessage: [data: eventdata.DeviceMessage];
+    deviceMessageFailed: [data: eventdata.DeviceMessageFailed];
     mqttMessage: [data: eventdata.MQTTMessage];
     mqttMessagePublished: [data: eventdata.MQTTMessagePublished];
     publishEntityState: [data: eventdata.PublishEntityState];
@@ -177,6 +178,13 @@ export default class EventBus {
         this.on("deviceMessage", callback, key);
     }
 
+    public emitDeviceMessageFailed(data: eventdata.DeviceMessageFailed): void {
+        this.emitter.emit("deviceMessageFailed", data);
+    }
+    public onDeviceMessageFailed(key: ListenerKey, callback: (data: eventdata.DeviceMessageFailed) => void): void {
+        this.on("deviceMessageFailed", callback, key);
+    }
+
     public emitMQTTMessage(data: eventdata.MQTTMessage): void {
         this.emitter.emit("mqttMessage", data);