feat: Expose device serial number and origin (#7)

src/main.ts

@@ -64,8 +64,24 @@ async function main() {
     await client.login(options.mysaUsername, options.mysaPassword);
   }
 
+  rootLogger.debug('Fetching devices and firmwares...');
   const [devices, firmwares] = await Promise.all([client.getDevices(), client.getDeviceFirmwares()]);
 
+  rootLogger.debug('Fetching serial numbers...');
+  const serialNumbers = new Map<string, string>();
+  for (const [deviceId] of Object.entries(devices.DevicesObj)) {
+    try {
+      const serial = await client.getDeviceSerialNumber(deviceId);
+      if (serial) {
+        serialNumbers.set(deviceId, serial);
+      }
+    } catch (error) {
+      rootLogger.error(`Failed to retrieve serial number for device ${deviceId}`, error);
+    }
+  }
+
+  rootLogger.debug('Initializing MQTT entities...');
+
   const mqttSettings: MqttSettings = {
     host: options.mqttHost,
     port: options.mqttPort,
@@ -82,7 +98,8 @@ async function main() {
         device,
         mqttSettings,
         new PinoLogger(rootLogger.child({ module: 'thermostat', deviceId: device.Id })),
-        firmwares.Firmware[device.Id]
+        firmwares.Firmware[device.Id],
+        serialNumbers.get(device.Id)
       )
   );
 

src/options.ts

@@ -64,6 +64,8 @@ function parseRequiredInt(value: string) {
   return parsedValue;
 }
 
+export const version = getPackageVersion();
+
 const extraHelpText = `
 Copyright (c) 2025 Pascal Bourque
 Licensed under the MIT License
@@ -72,7 +74,7 @@ Source code and documentation available at: https://github.com/bourquep/mysa2mqt
 `;
 
 export const options = new Command('mysa2mqtt')
-  .version(getPackageVersion())
+  .version(version)
   .description('Expose Mysa smart thermostats to home automation platforms via MQTT.')
   .addHelpText('afterAll', extraHelpText)
   .addOption(

src/thermostat.ts

@@ -21,12 +21,22 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 */
 
-import { Climate, ClimateAction, DeviceConfiguration, Logger, MqttSettings, Sensor } from 'mqtt2ha';
+import {
+  Climate,
+  ClimateAction,
+  DeviceConfiguration,
+  Logger,
+  MqttSettings,
+  OriginConfiguration,
+  Sensor
+} from 'mqtt2ha';
 import { DeviceBase, FirmwareDevice, MysaApiClient, MysaDeviceMode, StateChange, Status } from 'mysa-js-sdk';
+import { version } from './options';
 
 export class Thermostat {
   private isStarted = false;
   private readonly mqttDevice: DeviceConfiguration;
+  private readonly mqttOrigin: OriginConfiguration;
   private readonly mqttClimate: Climate;
   private readonly mqttTemperature: Sensor;
   private readonly mqttHumidity: Sensor;
@@ -40,14 +50,22 @@ export class Thermostat {
     public readonly mysaDevice: DeviceBase,
     private readonly mqttSettings: MqttSettings,
     private readonly logger: Logger,
-    public readonly mysaDeviceFirmware?: FirmwareDevice
+    public readonly mysaDeviceFirmware?: FirmwareDevice,
+    public readonly mysaDeviceSerialNumber?: string
   ) {
     this.mqttDevice = {
       identifiers: mysaDevice.Id,
       name: mysaDevice.Name,
       manufacturer: 'Mysa',
       model: mysaDevice.Model,
-      sw_version: mysaDeviceFirmware?.InstalledVersion
+      sw_version: mysaDeviceFirmware?.InstalledVersion,
+      serial_number: mysaDeviceSerialNumber
+    };
+
+    this.mqttOrigin = {
+      name: 'mysa2mqtt',
+      sw_version: version,
+      support_url: 'https://github.com/bourquep/mysa2mqtt'
     };
 
     this.mqttClimate = new Climate(
@@ -57,6 +75,7 @@ export class Thermostat {
         component: {
           component: 'climate',
           device: this.mqttDevice,
+          origin: this.mqttOrigin,
           unique_id: `mysa_${mysaDevice.Id}_climate`,
           name: 'Thermostat',
           min_temp: mysaDevice.MinSetpoint,
@@ -112,6 +131,7 @@ export class Thermostat {
       component: {
         component: 'sensor',
         device: this.mqttDevice,
+        origin: this.mqttOrigin,
         unique_id: `mysa_${mysaDevice.Id}_temperature`,
         name: 'Current temperature',
         device_class: 'temperature',
@@ -128,6 +148,7 @@ export class Thermostat {
       component: {
         component: 'sensor',
         device: this.mqttDevice,
+        origin: this.mqttOrigin,
         unique_id: `mysa_${mysaDevice.Id}_humidity`,
         name: 'Current humidity',
         device_class: 'humidity',
@@ -144,6 +165,7 @@ export class Thermostat {
       component: {
         component: 'sensor',
         device: this.mqttDevice,
+        origin: this.mqttOrigin,
         unique_id: `mysa_${mysaDevice.Id}_power`,
         name: 'Current power',
         device_class: 'power',