Resolves #186 Switch for group with same domain antities

lib/entity_class/group_entity.class.dart

@@ -0,0 +1,43 @@
+part of '../main.dart';
+
+class GroupEntity extends Entity {
+  GroupEntity(Map rawData) : super(rawData);
+
+  final List<String> _domainsForSwitchableGroup = ["switch", "light", "automation", "input_boolean"];
+  String mutualDomain;
+  bool switchable = false;
+
+  @override
+  Widget _buildStatePart(BuildContext context) {
+    if (switchable) {
+      return SwitchStateWidget(
+        domainForService: "homeassistant",
+      );
+    } else {
+      return super._buildStatePart(context);
+    }
+  }
+
+  @override
+  void update(Map rawData) {
+    super.update(rawData);
+    if (_isOneDomain()) {
+      mutualDomain = attributes['entity_id'][0].split(".")[0];
+      switchable = _domainsForSwitchableGroup.contains(mutualDomain);
+    }
+  }
+
+  bool _isOneDomain() {
+    bool result = false;
+    if (attributes['entity_id'] != null && attributes['entity_id'] is List && attributes['entity_id'].isNotEmpty) {
+      String firstChildDomain = attributes['entity_id'][0].split(".")[0];
+      result = true;
+      attributes['entity_id'].forEach((childEntityId){
+        if (childEntityId.split(".")[0] != firstChildDomain) {
+          result = false;
+        }
+      });
+    }
+    return result;
+  }
+}

lib/entity_collection.class.dart

@@ -55,6 +55,9 @@ class EntityCollection {
       case "light": {
         return LightEntity(rawEntityData);
       }
+      case "group": {
+        return GroupEntity(rawEntityData);
+      }
       case "script":
       case "scene": {
         return ButtonEntity(rawEntityData);

lib/entity_widgets/state/switch_state.dart

@@ -1,6 +1,11 @@
 part of '../../main.dart';
 
 class SwitchStateWidget extends StatefulWidget {
+
+  final String domainForService;
+
+  const SwitchStateWidget({Key key, this.domainForService}) : super(key: key);
+
   @override
   _SwitchStateWidgetState createState() => _SwitchStateWidgetState();
 }
@@ -27,8 +32,14 @@ class _SwitchStateWidgetState extends State<SwitchStateWidget> {
         //TheLogger.debug("Timer@!!");
       });
     });
+    String domain;
+    if (widget.domainForService != null) {
+      domain = widget.domainForService;
+    } else {
+      domain = entity.domain;
+    }
     eventBus.fire(new ServiceCallEvent(
-        entity.domain, (newValue as bool) ? "turn_on" : "turn_off", entity.entityId, null));
+        domain, (newValue as bool) ? "turn_on" : "turn_off", entity.entityId, null));
   }
 
   @override

lib/main.dart

@@ -30,6 +30,7 @@ part 'entity_class/other_entity.class.dart';
 part 'entity_class/slider_entity.dart';
 part 'entity_class/media_player_entity.class.dart';
 part 'entity_class/lock_entity.class.dart';
+part 'entity_class/group_entity.class.dart';
 part 'entity_widgets/common/badge.dart';
 part 'entity_widgets/model_widgets.dart';
 part 'entity_widgets/default_entity_container.dart';