[#38] Add access token support

lib/data_model.dart

@@ -15,6 +15,7 @@ class SettingsChangedEvent {
 class HassioDataModel {
   String _hassioAPIEndpoint;
   String _hassioPassword;
+  String _hassioAuthType;
   IOWebSocketChannel _hassioChannel;
   int _currentMssageId = 0;
   int _statesMessageId = 0;
@@ -36,9 +37,10 @@ class HassioDataModel {
   Map get uiStructure => _uiStructure;
   Map get instanceConfig => _instanceConfig;
 
-  HassioDataModel(String url, String password) {
+  HassioDataModel(String url, String password, String authType) {
     _hassioAPIEndpoint = url;
     _hassioPassword = password;
+    _hassioAuthType = authType;
   }
 
   Future fetch() {
@@ -112,7 +114,7 @@ class HassioDataModel {
     var data = json.decode(message);
     debugPrint("[Received]Message type: ${data['type']}");
     if (data["type"] == "auth_required") {
-      _sendMessageRaw('{"type": "auth","api_password": "$_hassioPassword"}');
+      _sendMessageRaw('{"type": "auth","$_hassioAuthType": "$_hassioPassword"}');
     } else if (data["type"] == "auth_ok") {
       _sendSubscribe();
       connectionCompleter.complete();

lib/main.dart

@@ -54,6 +54,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
   int _errorCodeToBeShown = 0;
   String _lastErrorMessage = "";
   StreamSubscription _stateSubscription;
+  StreamSubscription _settingsSubscription;
   bool _isLoading = true;
   Map _stateIconColors = {
     "on": Colors.amber,
@@ -67,7 +68,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
   void initState() {
     super.initState();
     WidgetsBinding.instance.addObserver(this);
-    eventBus.on<SettingsChangedEvent>().listen((event) {
+    _settingsSubscription = eventBus.on<SettingsChangedEvent>().listen((event) {
       debugPrint("Settings change event: reconnect=${event.reconnect}");
       setState(() {
         _errorCodeToBeShown = 0;
@@ -92,19 +93,20 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
     _instanceHost = "$domain:$port";
     String apiEndpoint = "${prefs.getString('hassio-protocol')}://$domain:$port/api/websocket";
     String apiPassword = prefs.getString('hassio-password');
-    if ((domain == null) || (port == null) || (apiEndpoint == null) || (apiPassword == null) ||
+    String authType = prefs.getString('hassio-auth-type');
-        (domain.length == 0) || (port.length == 0) || (apiEndpoint.length == 0) || (apiPassword.length == 0)) {
+    if ((domain == null) || (port == null) || (apiPassword == null) ||
+        (domain.length == 0) || (port.length == 0) || (apiPassword.length == 0)) {
       setState(() {
         _errorCodeToBeShown = 5;
       });
     } else {
       if (_dataModel != null) _dataModel.closeConnection();
-      _createConnection(apiEndpoint, apiPassword);
+      _createConnection(apiEndpoint, apiPassword, authType);
     }
   }
 
-  _createConnection(String apiEndpoint, String apiPassword) {
+  _createConnection(String apiEndpoint, String apiPassword, String authType) {
-    _dataModel = HassioDataModel(apiEndpoint, apiPassword);
+    _dataModel = HassioDataModel(apiEndpoint, apiPassword, authType);
     _refreshData();
     if (_stateSubscription != null) _stateSubscription.cancel();
     _stateSubscription = eventBus.on<StateChangedEvent>().listen((event) {
@@ -406,6 +408,8 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
             )
         );
       });
+    } else {
+      _scaffoldKey?.currentState?.hideCurrentSnackBar();
     }
   }
 
@@ -479,6 +483,8 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
   @override
   void dispose() {
     WidgetsBinding.instance.removeObserver(this);
+    if (_stateSubscription != null) _stateSubscription.cancel();
+    if (_settingsSubscription != null) _settingsSubscription.cancel();
     _dataModel.closeConnection();
     super.dispose();
   }

lib/settings.dart

@@ -14,6 +14,7 @@ class _ConnectionSettingsPageState extends State<ConnectionSettingsPage> {
   String _hassioPort = "8123";
   String _hassioPassword = "";
   String _socketProtocol = "wss";
+  String _authType = "access_token";
 
   @override
   void initState() {
@@ -29,6 +30,7 @@ class _ConnectionSettingsPageState extends State<ConnectionSettingsPage> {
       _hassioPort = prefs.getString("hassio-port") ?? '8123';
       _hassioPassword = prefs.getString("hassio-password");
       _socketProtocol = prefs.getString("hassio-protocol") ?? 'wss';
+      _authType = prefs.getString("hassio-auth-type") ?? 'access_token';
     });
   }
 
@@ -38,6 +40,7 @@ class _ConnectionSettingsPageState extends State<ConnectionSettingsPage> {
     prefs.setString("hassio-port", _hassioPort);
     prefs.setString("hassio-password", _hassioPassword);
     prefs.setString("hassio-protocol", _socketProtocol);
+    prefs.setString("hassio-auth-type", _authType);
   }
 
   @override
@@ -95,9 +98,23 @@ class _ConnectionSettingsPageState extends State<ConnectionSettingsPage> {
               _saveSettings();
             },
           ),
+          new Row(
+            children: [
+              Text("Login with access token (HA >= 0.78.0)"),
+              Switch(
+                value: (_authType == "access_token"),
+                onChanged: (value) {
+                  setState(() {
+                    _authType = value ? "access_token" : "api_password";
+                  });
+                  _saveSettings();
+                },
+              )
+            ],
+          ),
           new TextField(
             decoration: InputDecoration(
-                labelText: "Home Assistant password"
+                labelText: _authType == "access_token" ? "Access token" : "API password"
             ),
             controller: TextEditingController(
                 text: _hassioPassword