fixing the internal subscriptions

modules/mqtt-connector/src/mqtt.client.module.ts

@@ -7,6 +7,7 @@
  */
 
 import { connect, MqttClient } from "mqtt";
+import { Subscription } from "rxjs";
 import { Logger } from "winston";
 import { exportProperty } from "../../../lib/decorators/moduleDecorators";
 import { SPLITCHAR } from "../../../lib/helpers/objectMethods";
@@ -14,7 +15,7 @@ import { replaceAll } from "../../../lib/helpers/stringMethods";
 import { getNopeLogger } from "../../../lib/logger/getLogger";
 import { NopeBaseModule } from "../../../lib/module/BaseModule";
 import { NopeObservable } from "../../../lib/observables/nopeObservable";
-import { INopeObserver } from "../../../lib/types/nope/nopeObservable.interface";
+import { throttleTime } from 'rxjs/operators'
 import { ISubscriptionOptions } from "../../mod-Publish-And-Subscribe-System/type/interfaces";
 
 const MQTT_SUBSCRIPTIONS_TOPIC = 'mqtt/subscriptions';
@@ -304,7 +305,7 @@ export class MQTTClientModule extends NopeBaseModule {
     }
 
     protected _firstConnect = true;
-    protected _interallyPublishedTopics: Map<string,INopeObserver> = new Map();
+    protected _interallyPublishedTopics: Map<string,Subscription> = new Map();
     protected _client: MqttClient;
     protected _id: string;
 
@@ -397,12 +398,38 @@ export class MQTTClientModule extends NopeBaseModule {
                         delimitTime: 500
                     }, _subscribeOptions || {});
 
-                    console.log('Subscribing Hier',topic)
+                    // differenciate between internal and external elements
+                    // Therefore iterate over the elements and compare the subscribed and 
+                    // offered topic.
+                    for (const prop of _this._registeredProperties.values()){
+                        
+                        const _pubTopic = typeof prop.options.topic === 'string' ? prop.options.topic : prop.options.topic.publish || null;
+
+                        if (_pubTopic === topic) {
+                            // get an observable, holding the content
+                            const observer = prop.observable.enhancedSubscription((data) => {
+                                // Publish the Content.
+                                _publishToMQTT(data, _this.identifier, _pubTopic);
+                            }, _subscribeOptions.delimitTime > 0 ? {
+                                pipe(scope, obs) {
+                                    return obs.pipe(scope.throttleTime(_subscribeOptions.delimitTime))
+                                },
+                                scope: {
+                                    throttleTime
+                                }
+                            } : {});
+
+                            // Mark the Topic as subscribed.
+                            _this._interallyPublishedTopics.set(topic, observer);
+
+                            // End the call
+                            return;
+                        }
+                    }
 
                     // get an observable, holding the content
                     const observer = await _this._dispatcher.subscribeToEvent(topic, (data, sender, timestamp) => {
                         // Publish the Content.
-                        console.log(topic,data);
                         _publishToMQTT(data, sender, topic);
                     }, _subscribeOptions.delimitTime > 0 ? {
                         pipe: {
@@ -410,9 +437,10 @@ export class MQTTClientModule extends NopeBaseModule {
                                 return obs.pipe(scope.throttleTime(_subscribeOptions.delimitTime))
                             },
                             scope: {
-                                throttleTime: 0
+                                throttleTime
                             }
-                        }
+                        },
+                        mode: 'sync'
                     } : {
                             mode: 'sync',
                         })