Add log view page to see app events and debug messages

lib/data_model.dart

@@ -46,7 +46,7 @@ class HassioDataModel {
 
   Future fetch() {
     if ((_fetchCompleter != null) && (!_fetchCompleter.isCompleted)) {
-      debugPrint("Previous fetch is not complited");
+      TheLogger.log("Warning","Previous fetch is not complited");
     } else {
       //TODO: Fetch timeout timer. Should be removed after #21 fix
       _fetchingTimer = Timer(Duration(seconds: 15), () {
@@ -73,10 +73,10 @@ class HassioDataModel {
   Future _reConnectSocket() {
     var _connectionCompleter = new Completer();
     if ((_hassioChannel == null) || (_hassioChannel.closeCode != null)) {
-      debugPrint("Socket connecting...");
+      TheLogger.log("Debug","Socket connecting...");
       _hassioChannel = IOWebSocketChannel.connect(_hassioAPIEndpoint);
       _hassioChannel.stream.handleError((e) {
-        debugPrint("Unhandled socket error: ${e.toString()}");
+        TheLogger.log("Error","Unhandled socket error: ${e.toString()}");
       });
       _hassioChannel.stream.listen((message) =>
           _handleMessage(_connectionCompleter, message));
@@ -113,7 +113,7 @@ class HassioDataModel {
 
   _handleMessage(Completer connectionCompleter, String message) {
     var data = json.decode(message);
-    debugPrint("[Received]Message type: ${data['type']}");
+    TheLogger.log("Debug","[Received] => Message type: ${data['type']}");
     if (data["type"] == "auth_required") {
       _sendMessageRaw('{"type": "auth","$_hassioAuthType": "$_hassioPassword"}');
     } else if (data["type"] == "auth_ok") {
@@ -129,22 +129,18 @@ class HassioDataModel {
       } else if (data["id"] == _servicesMessageId) {
         _parseServices(data);
       } else if (data["id"] == _currentMessageId) {
-        debugPrint("Request id:$_currentMessageId was successful");
+        TheLogger.log("Debug","Request id:$_currentMessageId was successful");
-      } else {
-        debugPrint("Skipped message due to messageId:");
-        debugPrint(message);
       }
     } else if (data["type"] == "event") {
       if ((data["event"] != null) && (data["event"]["event_type"] == "state_changed")) {
         _handleEntityStateChange(data["event"]["data"]);
       } else if (data["event"] != null) {
-        debugPrint("Unhandled event type: ${data["event"]["event_type"]}");
+        TheLogger.log("Warning","Unhandled event type: ${data["event"]["event_type"]}");
       } else {
-        debugPrint("Event is null");
+        TheLogger.log("Error","Event is null: $message");
       }
     } else {
-      debugPrint("Unknown message type");
+      TheLogger.log("Warning","Unknown message type: $message");
-      debugPrint(message);
     }
   }
 
@@ -185,20 +181,29 @@ class HassioDataModel {
     _currentMessageId += 1;
   }
 
-  _sendMessageRaw(message) {
+  _sendMessageRaw(String message) {
-    debugPrint("[Sent]$message");
+    if (message.indexOf('"type": "auth"') > 0) {
+      TheLogger.log("Debug", "[Sending] ==> auth request");
+    } else {
+      TheLogger.log("Debug", "[Sending] ==> $message");
+    }
     _hassioChannel.sink.add(message);
   }
 
   void _handleEntityStateChange(Map eventData) {
-    var parsedEntityData = _parseEntity(eventData["new_state"]);
+    TheLogger.log("Debug", "Parsing new state for ${eventData['entity_id']}");
-    String entityId = parsedEntityData["entity_id"];
+    if (eventData["new_state"] == null) {
-    if (_entitiesData[entityId] == null) {
+      TheLogger.log("Error", "No new_state found");
-      _entitiesData[entityId] = parsedEntityData;
     } else {
-      _entitiesData[entityId].addAll(parsedEntityData);
+      var parsedEntityData = _parseEntity(eventData["new_state"]);
+      String entityId = parsedEntityData["entity_id"];
+      if (_entitiesData[entityId] == null) {
+        _entitiesData[entityId] = parsedEntityData;
+      } else {
+        _entitiesData[entityId].addAll(parsedEntityData);
+      }
+      eventBus.fire(new StateChangedEvent(eventData["entity_id"]));
     }
-    eventBus.fire(new StateChangedEvent(eventData["entity_id"]));
   }
 
   void _parseConfig(Map data) {
@@ -218,7 +223,7 @@ class HassioDataModel {
     try {
       Map data = response["result"];
       Map result = {};
-      debugPrint("Parsing ${data.length} Home Assistant service domains");
+      TheLogger.log("Debug","Parsing ${data.length} Home Assistant service domains");
       data.forEach((domain, services) {
         result[domain] = Map.from(services);
         services.forEach((serviceName, serviceData) {
@@ -231,7 +236,7 @@ class HassioDataModel {
       _servicesCompleter.complete();
     } catch (e) {
       //TODO hadle it properly
-      debugPrint("Error parsing services");
+      TheLogger.log("Error","Error parsing services. But they are not used :-)");
       _servicesCompleter.complete();
     }
   }
@@ -244,7 +249,7 @@ class HassioDataModel {
       return;
     }
     List data = response["result"];
-    debugPrint("Parsing ${data.length} Home Assistant entities");
+    TheLogger.log("Debug","Parsing ${data.length} Home Assistant entities");
     List<String> uiGroups = [];
     data.forEach((entity) {
       try {
@@ -258,13 +263,12 @@ class HassioDataModel {
         }
         _entitiesData[entity["entity_id"]] = composedEntity;
       } catch (error) {
-        debugPrint("Error parsing entity: ${entity['entity_id']}");
+        TheLogger.log("Error","Error parsing entity: ${entity['entity_id']}");
-        debugPrint("$error");
       }
     });
 
     //Gethering information for UI
-    debugPrint("Gethering views");
+    TheLogger.log("Debug","Gethering views");
     int viewCounter = 0;
     uiGroups.forEach((viewId) { //Each view
       try {
@@ -320,7 +324,7 @@ class HassioDataModel {
         }
         _uiStructure[viewId.split(".")[1]] = viewGroupStructure;
       } catch (error) {
-        debugPrint("Error parsing view: $viewId");
+        TheLogger.log("Error","Error parsing view: $viewId");
       }
     });
     _statesCompleter.complete();

lib/logPage.dart

@@ -0,0 +1,49 @@
+part of 'main.dart';
+
+class LogViewPage extends StatefulWidget {
+  LogViewPage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _LogViewPageState createState() => new _LogViewPageState();
+}
+
+class _LogViewPageState extends State<LogViewPage> {
+  String _hassioDomain = "";
+  String _hassioPort = "8123";
+  String _hassioPassword = "";
+  String _socketProtocol = "wss";
+  String _authType = "access_token";
+
+  @override
+  void initState() {
+    super.initState();
+    _loadLog();
+  }
+
+  _loadLog() async {
+    //
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return new Scaffold(
+      appBar: new AppBar(
+        leading: IconButton(icon: Icon(Icons.arrow_back), onPressed: (){
+          Navigator.pop(context);
+        }),
+        // Here we take the value from the MyHomePage object that was created by
+        // the App.build method, and use it to set our appbar title.
+        title: new Text(widget.title),
+      ),
+      body: TextField(
+        maxLines: null,
+
+        controller: TextEditingController(
+            text: TheLogger.getLog()
+        ),
+      )
+    );
+  }
+}

lib/main.dart

@@ -9,8 +9,9 @@ import 'package:event_bus/event_bus.dart';
 import 'package:flutter/widgets.dart';
 import 'package:cached_network_image/cached_network_image.dart';
 
-part 'settings.dart';
+part 'settingsPage.dart';
 part 'data_model.dart';
+part 'logPage.dart';
 
 EventBus eventBus = new EventBus();
 const String appName = "HA Client";
@@ -18,6 +19,36 @@ const appVersion = "0.1.0-alpha";
 
 String homeAssistantWebHost;
 
+class TheLogger {
+
+  static List<String> _log = [];
+
+  static String getLog() {
+    String res = '';
+    _log.forEach((line) {
+      res += "$line\n\n";
+    });
+    return res;
+  }
+
+  static bool get isInDebugMode {
+    bool inDebugMode = false;
+
+    assert(inDebugMode = true);
+
+    return inDebugMode;
+  }
+
+  static void log(String level, String message) {
+    debugPrint('$message');
+    _log.add("[$level] :  $message");
+    if (_log.length > 50) {
+      _log.removeAt(0);
+    }
+  }
+
+}
+
 void main() => runApp(new HassClientApp());
 
 class HassClientApp extends StatelessWidget {
@@ -32,7 +63,8 @@ class HassClientApp extends StatelessWidget {
       initialRoute: "/",
       routes: {
         "/": (context) => MainPage(title: 'Hass Client'),
-        "/connection-settings": (context) => ConnectionSettingsPage(title: "Connection Settings")
+        "/connection-settings": (context) => ConnectionSettingsPage(title: "Connection Settings"),
+        "/log-view": (context) => LogViewPage(title: "Log")
       },
     );
   }
@@ -76,7 +108,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
     super.initState();
     WidgetsBinding.instance.addObserver(this);
     _settingsSubscription = eventBus.on<SettingsChangedEvent>().listen((event) {
-      debugPrint("Settings change event: reconnect=${event.reconnect}");
+      TheLogger.log("Debug","Settings change event: reconnect=${event.reconnect}");
       setState(() {
         _errorCodeToBeShown = 0;
       });
@@ -87,7 +119,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
 
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) {
-    debugPrint("$state");
+    TheLogger.log("Debug","$state");
     if (state == AppLifecycleState.resumed) {
       _refreshData();
     }
@@ -118,7 +150,6 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
     _refreshData();
     if (_stateSubscription != null) _stateSubscription.cancel();
     _stateSubscription = eventBus.on<StateChangedEvent>().listen((event) {
-      debugPrint("State change event for ${event.entityId}");
       setState(() {
         _entitiesData = _dataModel.entities;
       });
@@ -212,11 +243,9 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
     List<Widget> result = [];
     ids.forEach((entityId) {
       var data = _entitiesData[entityId];
-      if (data == null) {
+      if (data != null) {
-        debugPrint("Hiding unknown entity from badges: $entityId");
-      } else {
         result.add(
-        _buildSingleBadge(data)
+          _buildSingleBadge(data)
         );
       }
     });
@@ -363,9 +392,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
     List<Widget> entities = [];
     ids.forEach((id) {
       var data = _entitiesData[id];
-      if (data == null) {
+      if (data != null) {
-        debugPrint("Hiding unknown entity from card: $id");
-      } else {
         entities.add(new ListTile(
           leading: MaterialDesignIcons.createIconFromEntityData(data, 28.0, _stateIconColors[data["state"]] ?? Colors.blueGrey),
           //subtitle: Text("${data['entity_id']}"),
@@ -487,6 +514,13 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
               Navigator.pushNamed(context, '/connection-settings');
             },
           ),
+          new ListTile(
+            leading: Icon(Icons.insert_drive_file),
+            title: Text("Log"),
+            onTap: () {
+              Navigator.pushNamed(context, '/log-view');
+            },
+          ),
           new AboutListTile(
             applicationName: appName,
             applicationVersion: appVersion,