New error class

lib/auth_manager.class.dart

@@ -33,7 +33,7 @@ class AuthManager {
           flutterWebviewPlugin.close();
           Logger.e("Error getting temp token: ${e.toString()}");
           eventBus.fire(StartAuthEvent(oauthUrl, false));
-          completer.completeError({"errorCode": 61, "errorMessage": "Error getting temp token"});
+          completer.completeError(HAError("Error getting temp token"));
         });
       }
     });

lib/connection.class.dart

@@ -63,7 +63,7 @@ class Connection {
     }
     if ((_domain == null) || (_port == null) ||
         (_domain.isEmpty) || (_port.isEmpty)) {
-      completer.completeError({"errorCode": 5, "errorMessage": "Check connection settings"});
+      completer.completeError(HAError.checkConnectionSettings());
     }
 
     if (_token == null) {
@@ -87,8 +87,7 @@ class Connection {
     if (forceReconnect || !isConnected) {
       _connect().timeout(connectTimeout, onTimeout: () {
         _disconnect().then((_) {
-          completer?.completeError(
+          completer?.completeError(HAError("Connection timeout"));
-              {"errorCode": 1, "errorMessage": "Connection timeout"});
         });
       }).then((_) => completer?.complete()).catchError((e) {
         completer?.completeError(e);
@@ -127,12 +126,10 @@ class Connection {
               if (!connecting.isCompleted) connecting.complete();
             } else if (data["type"] == "auth_invalid") {
               Logger.d("[Received] <== ${data.toString()}");
-              _messageResolver["auth"]?.completeError(
+              _messageResolver["auth"]?.completeError(HAError("${data["message"]}", actions: [HAErrorAction.loginAgain()]));
-                  {"errorCode": 62, "errorMessage": "${data["message"]}"});
               _messageResolver.remove("auth");
               logout().then((_) {
-                if (!connecting.isCompleted) connecting.completeError(
+                if (!connecting.isCompleted) connecting.completeError(HAError("${data["message"]}", actions: [HAErrorAction.loginAgain()]));
-                    {"errorCode": 62, "errorMessage": "${data["message"]}"});
               });
             } else {
               _handleMessage(data);
@@ -146,6 +143,8 @@ class Connection {
     }
   }
 
+
+
   Future _disconnect() {
     Completer completer = Completer();
     if (!isConnected) {
@@ -173,7 +172,7 @@ class Connection {
         _messageResolver["${data["id"]}"]?.complete(data["result"]);
       } else if (data["id"] != null) {
         Logger.e("[Received] <== Error received on request id ${data['id']}: ${data['error']}");
-        _messageResolver["${data["id"]}"]?.completeError({"errorMessage": "${data['error']["message"]}"});
+        _messageResolver["${data["id"]}"]?.completeError("${data['error']["message"]}");
       }
       _messageResolver.remove("${data["id"]}");
     } else if (data["type"] == "event") {
@@ -194,14 +193,14 @@ class Connection {
     Logger.d("Socket disconnected.");
     if (!connectionCompleter.isCompleted) {
       isConnected = false;
-      connectionCompleter.completeError({"errorCode": 82, "errorMessage": "Disconnected"});
+      connectionCompleter.completeError(HAError("Disconnected", actions: [HAErrorAction.reconnect()]));
     } else {
       _disconnect().then((_) {
         Timer(Duration(seconds: 5), () {
           Logger.d("Trying to reconnect...");
           _connect().catchError((e) {
             isConnected = false;
-            eventBus.fire(ShowErrorEvent("Unable to connect to Home Assistant", 81));
+            eventBus.fire(ShowErrorEvent(HAError("Unable to connect to Home Assistant")));
           });
         });
       });
@@ -212,14 +211,14 @@ class Connection {
     Logger.e("Socket stream Error: $e");
     if (!connectionCompleter.isCompleted) {
       isConnected = false;
-      connectionCompleter.completeError({"errorCode": 81, "errorMessage": "Unable to connect to Home Assistant"});
+      connectionCompleter.completeError(HAError("Unable to connect to Home Assistant"));
     } else {
       _disconnect().then((_) {
         Timer(Duration(seconds: 5), () {
           Logger.d("Trying to reconnect...");
           _connect().catchError((e) {
             isConnected = false;
-            eventBus.fire(ShowErrorEvent("Unable to connect to Home Assistant", 81));
+            eventBus.fire(ShowErrorEvent(HAError("Unable to connect to Home Assistant")));
           });
         });
       });
@@ -254,7 +253,7 @@ class Connection {
         });
       }).catchError((e) => completer.completeError(e));
     } else {
-      completer.completeError({"errorCode": 63, "errorMessage": "General login error"});
+      completer.completeError(HAError("General login error"));
     }
     return completer.future;
   }
@@ -286,7 +285,7 @@ class Connection {
       });
     }).catchError((e) {
       logout();
-      completer.completeError({"errorCode": 63, "errorMessage": "Authentication error: $e"});
+      completer.completeError(HAError("Authentication error: $e", actions: [HAErrorAction.loginAgain()]));
     });
     return completer.future;
   }
@@ -309,7 +308,7 @@ class Connection {
     String rawMessage = json.encode(dataObject);
     if (!isConnected) {
       _connect().timeout(connectTimeout, onTimeout: (){
-        _completer.completeError({"errorCode": 8, "errorMessage": "No connection to Home Assistant"});
+        _completer.completeError(HAError("No connection to Home Assistant", actions: [HAErrorAction.reconnect()]));
       }).then((_) {
         Logger.d("[Sending] ==> $rawMessage");
         _socket.sink.add(rawMessage);

lib/home_assistant.class.dart

@@ -54,8 +54,12 @@ class HomeAssistant {
       additionalData: {"event_type": "state_changed"},
     ));
     Future.wait(futures).then((_) {
-      _createUI();
+      if (isMobileAppEnabled) {
-      _fetchCompleter.complete();
+        _createUI();
+        _fetchCompleter.complete();
+      } else {
+        _fetchCompleter.completeError(HAError("Mobile app component not found", actions: [HAErrorAction.tryAgain(), HAErrorAction(type: HAErrorActionType.URL ,title: "Help",url: "http://ha-client.homemade.systems/docs#mobile-app")]));
+      }
     }).catchError((e) {
       _fetchCompleter.completeError(e);
     });
@@ -75,7 +79,7 @@ class HomeAssistant {
     await Connection().sendSocketMessage(type: "get_config").then((data) {
       _instanceConfig = Map.from(data);
     }).catchError((e) {
-      throw {"errorCode": 1, "errorMessage": "Error getting config: $e"};
+      throw HAError("Error getting config: ${e}");
     });
   }
 
@@ -83,13 +87,13 @@ class HomeAssistant {
     await Connection().sendSocketMessage(type: "get_states").then(
             (data) => entities.parse(data)
     ).catchError((e) {
-      throw {"errorCode": 1, "errorMessage": "Error getting states: $e"};
+      throw HAError("Error getting states: $e");
     });
   }
 
   Future _getLovelace() async {
     await Connection().sendSocketMessage(type: "lovelace/config").then((data) => _rawLovelaceData = data).catchError((e) {
-      throw {"errorCode": 1, "errorMessage": "Error getting lovelace config: $e"};
+      throw HAError("Error getting lovelace config: $e");
     });
   }
 
@@ -122,7 +126,7 @@ class HomeAssistant {
         );
       });
     }).catchError((e) {
-      throw {"errorCode": 1, "errorMessage": "Error getting panels list: $e"};
+      throw HAError("Error getting panels list: $e");
     });
   }
 

lib/main.dart

@@ -277,7 +277,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
 
     if (_showErrorSubscription == null) {
       _showErrorSubscription = eventBus.on<ShowErrorEvent>().listen((event){
-        _showErrorBottomBar(message: event.text, errorCode: event.errorCode);
+        _showErrorBottomBar(event.error);
       });
     }
 
@@ -326,17 +326,13 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
     );
   }
 
-  _setErrorState(e) {
+  _setErrorState(HAError e) {
-    if (e["errorCode"] == null) {
+    if (e == null) {
       _showErrorBottomBar(
-          message: "Unknown error",
+        HAError("Unknown error")
-          errorCode: 13
       );
     } else {
-      _showErrorBottomBar(
+      _showErrorBottomBar(e);
-          message: e != null ? e["errorMessage"] ?? "$e" : "Unknown error",
-          errorCode: e["errorCode"] != null ? e["errorCode"] : 99
-      );
     }
   }
 
@@ -538,108 +534,70 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
     }
   }
 
-  void _showErrorBottomBar({Key key, @required String message, @required int errorCode}) {
+  void _showErrorBottomBar(HAError error) {
     TextStyle textStyle = TextStyle(
-      color: Colors.blue,
+        color: Colors.blue,
-      fontSize: Sizes.nameFontSize
+        fontSize: Sizes.nameFontSize
     );
     _bottomBarColor = Colors.red.shade100;
-      switch (errorCode) {
+    List<Widget> actions = [];
-        case 9:
+    error.actions.forEach((HAErrorAction action) {
-        case 11:
+      switch (action.type) {
-        case 7:
+        case HAErrorActionType.FULL_RELOAD: {
-        case 1: {
+          actions.add(FlatButton(
-        _bottomBarAction = FlatButton(
+            child: Text("${action.title}", style: textStyle),
-                child: Text("Retry", style: textStyle),
+            onPressed: () {
-                onPressed: () {
+              _fullLoad();
-                  //_scaffoldKey?.currentState?.hideCurrentSnackBar();
+            },
-                  _quickLoad();
+          ));
-                },
+          break;
-            );
+        }
-            break;
+
-          }
+        case HAErrorActionType.QUICK_RELOAD: {
-
+          actions.add(FlatButton(
-        case 5: {
+            child: Text("${action.title}", style: textStyle),
-          message = "Check connection settings";
+            onPressed: () {
-          _bottomBarAction = FlatButton(
+              _quickLoad();
-              child: Text("Open", style: textStyle),
+            },
+          ));
+          break;
+        }
+
+        case HAErrorActionType.URL: {
+          actions.add(FlatButton(
+            child: Text("${action.title}", style: textStyle),
+            onPressed: () {
+              HAUtils.launchURLInCustomTab(context, "${action.url}");
+            },
+          ));
+          break;
+        }
+
+        case HAErrorActionType.OPEN_CONNECTION_SETTINGS: {
+          actions.add(FlatButton(
+            child: Text("${action.title}", style: textStyle),
             onPressed: () {
-              //_scaffoldKey?.currentState?.hideCurrentSnackBar();
               Navigator.pushNamed(context, '/connection-settings');
             },
-          );
+          ));
-          break;
-        }
-
-        case 60: {
-          _bottomBarAction = FlatButton(
-              child: Text("Login", style: textStyle),
-            onPressed: () {
-              _fullLoad();
-            },
-          );
-          break;
-        }
-
-        case 63:
-        case 61: {
-          _bottomBarAction = FlatButton(
-            child: Text("Try again", style: textStyle),
-            onPressed: () {
-              _fullLoad();
-            },
-          );
-          break;
-        }
-
-        case 62: {
-          _bottomBarAction = FlatButton(
-            child: Text("Login again", style: textStyle),
-            onPressed: () {
-              _fullLoad();
-            },
-          );
-          break;
-        }
-
-        case 10: {
-          _bottomBarAction = FlatButton(
-              child: Text("Reload", style: textStyle),
-            onPressed: () {
-              //_scaffoldKey?.currentState?.hideCurrentSnackBar();
-              _fullLoad();
-            },
-          );
-          break;
-        }
-
-        case 82:
-        case 81:
-        case 8: {
-          _bottomBarAction = FlatButton(
-              child: Text("Reconnect", style: textStyle),
-            onPressed: () {
-              _fullLoad();
-            },
-          );
-          break;
-        }
-
-        default: {
-          _bottomBarAction = FlatButton(
-            child: Text("Try again", style: textStyle),
-            onPressed: () {
-              _fullLoad();
-            },
-          );
           break;
         }
       }
-      setState(() {
+    });
-        _bottomBarProgress = false;
+    if (actions.isNotEmpty) {
-        _bottomBarText = "$message";
+      _bottomBarAction = Row(
-        _showBottomBar = true;
+        mainAxisSize: MainAxisSize.min,
-      });
+        children: actions,
+        mainAxisAlignment: MainAxisAlignment.end,
+      );
+    } else {
+      _bottomBarAction = Container(height: 0.0, width: 0.0,);
+    }
+    setState(() {
+      _bottomBarProgress = false;
+      _bottomBarText = "${error.message}";
+      _showBottomBar = true;
+    });
   }
 
   final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();

lib/utils.class.dart

@@ -45,6 +45,50 @@ class Logger {
 
 }
 
+class HAError {
+  String message;
+  final List<HAErrorAction> actions;
+
+  HAError(this.message, {this.actions: const [HAErrorAction.tryAgain()]});
+
+  HAError.unableToConnect({this.actions = const [HAErrorAction.tryAgain()]}) {
+    this.message = "Unable to connect to Home Assistant";
+  }
+
+  HAError.disconnected({this.actions = const [HAErrorAction.reconnect()]}) {
+    this.message = "Disconnected";
+  }
+
+  HAError.checkConnectionSettings({this.actions = const [HAErrorAction.reload(), HAErrorAction(title: "Settings", type: HAErrorActionType.OPEN_CONNECTION_SETTINGS)]}) {
+    this.message = "Check connection settings";
+  }
+}
+
+class HAErrorAction {
+  final String title;
+  final int type;
+  final String url;
+
+  const HAErrorAction({@required this.title, this.type: HAErrorActionType.FULL_RELOAD, this.url});
+
+  const HAErrorAction.tryAgain({this.title = "Try again", this.type = HAErrorActionType.FULL_RELOAD, this.url});
+
+  const HAErrorAction.reconnect({this.title = "Reconnect", this.type = HAErrorActionType.FULL_RELOAD, this.url});
+
+  const HAErrorAction.reload({this.title = "Reload", this.type = HAErrorActionType.FULL_RELOAD, this.url});
+
+  const HAErrorAction.loginAgain({this.title = "Login again", this.type = HAErrorActionType.FULL_RELOAD, this.url});
+
+}
+
+class HAErrorActionType {
+  static const FULL_RELOAD = 0;
+  static const QUICK_RELOAD = 1;
+  static const LOGOUT = 2;
+  static const URL = 3;
+  static const OPEN_CONNECTION_SETTINGS = 4;
+}
+
 class HAUtils {
   static void launchURL(String url) async {
     if (await urlLauncher.canLaunch(url)) {
@@ -136,8 +180,7 @@ class ShowEntityPageEvent {
 }
 
 class ShowErrorEvent {
-  String text;
+  final HAError error;
-  int errorCode;
 
-  ShowErrorEvent(this.text, this.errorCode);
+  ShowErrorEvent(this.error);
 }