fixup! Implement ExposedThing functionality

Author: JKRhb

lib/src/core/implementation/exposed_thing.dart

@@ -288,84 +288,126 @@ class ExposedThing implements scripting_api.ExposedThing, ExposableThing {
   }
 
   @override
-  Stream<Content> handleObserveProperty(
-    String propertyName, {
+  Future<void> handleReadAllProperties(
+    List<String> propertyNames,
+    PropertyContentMap inputs, {
     int? formIndex,
     Map<String, Object>? uriVariables,
     Object? data,
   }) {
-    final property = _obtainProperty(propertyName);
-
-    // TODO: implement handleObserveProperty
+    // TODO: implement handleReadAllProperties
     throw UnimplementedError();
   }
 
   @override
-  Future<void> handleReadAllProperties(
+  Future<PropertyContentMap> handleReadMultipleProperties(
     List<String> propertyNames,
-    PropertyContentMap inputs, {
+    Content input, {
     int? formIndex,
     Map<String, Object>? uriVariables,
     Object? data,
   }) {
-    // TODO: implement handleReadAllProperties
+    // TODO: implement handleReadMultipleProperties
     throw UnimplementedError();
   }
 
   @override
-  Future<PropertyContentMap> handleReadMultipleProperties(
+  Future<void> handleWriteMultipleProperties(
     List<String> propertyNames,
     Content input, {
     int? formIndex,
     Map<String, Object>? uriVariables,
     Object? data,
   }) {
-    // TODO: implement handleReadMultipleProperties
+    // TODO: implement handleWriteMultipleProperties
     throw UnimplementedError();
   }
 
   @override
-  Stream<Content> handleSubscribeEvent(
-    String eventName, {
+  Future<void> handleObserveProperty(
+    String propertyName, {
     int? formIndex,
     Map<String, Object>? uriVariables,
     Object? data,
-  }) {
-    // TODO: implement handleSubscribeEvent
-    throw UnimplementedError();
+  }) async {
+    final observeHandler = _propertyObserveHandlers[propertyName];
+
+    if (observeHandler == null) {
+      throw Exception(
+        "Observe handler for property $propertyName is not defined.",
+      );
+    }
+
+    await observeHandler(
+      data: data,
+      uriVariables: uriVariables,
+      formIndex: formIndex,
+    );
   }
 
   @override
-  Future<void> handleUnsubscribeEvent(
-    String eventName, {
+  Future<void> handleUnobserveProperty(
+    String propertyName, {
     int? formIndex,
     Map<String, Object>? uriVariables,
     Object? data,
-  }) {
-    // TODO: implement handleUnsubscribeEvent
-    throw UnimplementedError();
+  }) async {
+    final unobserveHandler = _propertyUnobserveHandlers[propertyName];
+
+    if (unobserveHandler == null) {
+      throw Exception(
+        "Unobserve handler for property $propertyName is not defined.",
+      );
+    }
+
+    await unobserveHandler(
+      data: data,
+      uriVariables: uriVariables,
+      formIndex: formIndex,
+    );
   }
 
   @override
-  Future<void> handleWriteMultipleProperties(
-    List<String> propertyNames,
-    Content input, {
+  Future<void> handleSubscribeEvent(
+    String eventName, {
     int? formIndex,
     Map<String, Object>? uriVariables,
     Object? data,
-  }) {
-    // TODO: implement handleWriteMultipleProperties
-    throw UnimplementedError();
+  }) async {
+    final subscribeHandler = _eventSubscribeHandlers[eventName];
+
+    if (subscribeHandler == null) {
+      throw Exception(
+        "Observe handler for property $eventName is not defined.",
+      );
+    }
+
+    await subscribeHandler(
+      data: data,
+      uriVariables: uriVariables,
+      formIndex: formIndex,
+    );
   }
 
   @override
-  Future<void> handleUnobserveProperty(
+  Future<void> handleUnsubscribeEvent(
     String eventName, {
     int? formIndex,
     Map<String, Object>? uriVariables,
     Object? data,
-  }) {
-    // TODO: implement handleUnobserveProperty
-    throw UnimplementedError();
+  }) async {
+    final unsubscribeHandler = _eventUnsubscribeHandlers[eventName];
+
+    if (unsubscribeHandler == null) {
+      throw Exception(
+        "Observe handler for property $eventName is not defined.",
+      );
+    }
+
+    await unsubscribeHandler(
+      data: data,
+      uriVariables: uriVariables,
+      formIndex: formIndex,
+    );
   }
 }

lib/src/core/protocol_interfaces/exposable_thing.dart

@@ -61,7 +61,7 @@ abstract interface class ExposableThing {
   });
 
   /// Handles an `observeproperty` operation triggered by a TD consumer.
-  Stream<Content> handleObserveProperty(
+  Future<void> handleObserveProperty(
     String eventName, {
     int? formIndex,
     Map<String, Object>? uriVariables,
@@ -86,7 +86,7 @@ abstract interface class ExposableThing {
   });
 
   /// Handles a `subscribeevent` operation triggered by a TD consumer.
-  Stream<Content> handleSubscribeEvent(
+  Future<void> handleSubscribeEvent(
     String eventName, {
     int? formIndex,
     Map<String, Object>? uriVariables,