Update WsAccessory.js

Proof of concept for Eve history, see simont77/fakegato-history#75 (comment):
- Don't expose _AIr Pressure Sensor_ service when `noPressure` or `noHumidity` is set;
- Don't expose _Humidity Sensor_ service when `noHumidity` is set;
- Expose _Weather_ service when `noPressure` or `noHumidity` is set.

lib/WsAccessory.js

@@ -25,23 +25,50 @@ class WsAccessory extends homebridgeLib.AccessoryDelegate {
 
     this.resource = context.location
     this.wsServices = {
-      temperature: new WsService.Temperature(this),
-      humidity: new WsService.Humidity(this),
-      pressure: new WsService.AirPressure(this)
+      temperature: new WsService.Temperature(this)
+    }
+    if (this.platform.config.noHumidity) {
+      // Temperature
+      this.wsServices.weather = new WsService.Weather(
+        this, {},
+        this.wsServices.temperature.characteristicDelegate('temperature')
+      )
+      this.wsServices.history = new homebridgeLib.ServiceDelegate.History.Weather(
+        this, params,
+        this.wsServices.temperature.characteristicDelegate('temperature')
+      )
+    } else {
+      this.wsServices.humidity = new WsService.Humidity(this)
+      if (this.platform.config.noPressure) {
+        // Temperature/Humidity
+        this.wsServices.weather = new WsService.Weather(
+          this, {},
+          this.wsServices.temperature.characteristicDelegate('temperature'),
+          this.wsServices.humidity.characteristicDelegate('humidity')
+        )
+        this.wsServices.history = new homebridgeLib.ServiceDelegate.History.Weather(
+          this, params,
+          this.wsServices.temperature.characteristicDelegate('temperature'),
+          this.wsServices.humidity.characteristicDelegate('humidity')
+        )
+      } else {
+        // Temperature/Humidity/Pressure
+        this.wsServices.pressure = new WsService.AirPressure(this)
+        this.wsServices.history = new homebridgeLib.ServiceDelegate.History.Weather(
+          this, params,
+          this.wsServices.temperature.characteristicDelegate('temperature'),
+          this.wsServices.humidity.characteristicDelegate('humidity'),
+          this.wsServices.pressure.characteristicDelegate('pressure')
+        )
+      }
     }
-    this.wsServices.history = new homebridgeLib.ServiceDelegate.History.Weather(
-      this, params,
-      this.wsServices.temperature.characteristicDelegate('temperature'),
-      this.wsServices.humidity.characteristicDelegate('humidity'),
-      this.wsServices.pressure.characteristicDelegate('pressure')
-    )
     setImmediate(() => {
       this.emit('initialised')
     })
   }
 
   heartbeat (beat) {
-    const heartrate = this.wsServices.pressure.values.heartrate * 60
+    const heartrate = this.wsServices.temperature.values.heartrate * 60
     if (beat % heartrate === 1) {
       this.platform.openweathermap.get(this.resource).then((response) => {
         this.debug('%j', response)
@@ -58,9 +85,11 @@ class WsAccessory extends homebridgeLib.AccessoryDelegate {
           this.error('OpenWeatherMap error: %j', response)
           return
         }
-        this.wsServices.temperature.checkObservation(response)
-        this.wsServices.humidity.checkObservation(response)
-        this.wsServices.pressure.checkObservation(response)
+        for (const id in this.wsServices) {
+          if (typeof this.wsServices[id].checkObservation === 'function') {
+            this.wsServices[id].checkObservation(response)
+          }
+        }
       }).catch((err) => {
         this.error(err)
       })