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[#43] Handling bad configuration. Advanced connection error handling

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This commit is contained in:
estevez
2018-09-20 23:21:03 +03:00
parent e5fbc40c66
commit eceece5a90
3 changed files with 95 additions and 40 deletions
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111
lib/main.dart
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@ -51,8 +51,10 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
Map _instanceConfig;
int _uiViewsCount = 0;
String _instanceHost;
int _fetchErrorCode = 0;
bool loading = true;
int _errorCodeToBeShown = 0;
String _lastErrorMessage = "";
StreamSubscription _stateSubscription;
bool _isLoading = true;
Map _stateIconColors = {
"on": Colors.amber,
"off": Colors.blueGrey,
@ -65,7 +67,14 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
void initState() {
super.initState();
WidgetsBinding.instance.addObserver(this);
_init();
eventBus.on<SettingsChangedEvent>().listen((event) {
debugPrint("Settings change event: reconnect=${event.reconnect}");
setState(() {
_errorCodeToBeShown = 0;
});
_initConnection();
});
_initConnection();
}
@override
@ -76,16 +85,29 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
}
}
_init() async {
_initConnection() async {
SharedPreferences prefs = await SharedPreferences.getInstance();
String domain = prefs.getString('hassio-domain');
String port = prefs.getString('hassio-port');
_instanceHost = "$domain:$port";
String _hassioAPIEndpoint = "${prefs.getString('hassio-protocol')}://$domain:$port/api/websocket";
String _hassioPassword = prefs.getString('hassio-password');
_dataModel = HassioDataModel(_hassioAPIEndpoint, _hassioPassword);
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) ||
(domain.length == 0) || (port.length == 0) || (apiEndpoint.length == 0) || (apiPassword.length == 0)) {
setState(() {
_errorCodeToBeShown = 5;
});
} else {
if (_dataModel != null) _dataModel.closeConnection();
_createConnection(apiEndpoint, apiPassword);
}
}
_createConnection(String apiEndpoint, String apiPassword) {
_dataModel = HassioDataModel(apiEndpoint, apiPassword);
_refreshData();
eventBus.on<StateChangedEvent>().listen((event) {
if (_stateSubscription != null) _stateSubscription.cancel();
_stateSubscription = eventBus.on<StateChangedEvent>().listen((event) {
debugPrint("State change event for ${event.entityId}");
setState(() {
_entitiesData = _dataModel.entities;
@ -95,9 +117,9 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
_refreshData() async {
setState(() {
loading = true;
_isLoading = true;
});
_fetchErrorCode = 0;
_errorCodeToBeShown = 0;
if (_dataModel != null) {
await _dataModel.fetch().then((result) {
setState(() {
@ -105,12 +127,13 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
_entitiesData = _dataModel.entities;
_uiStructure = _dataModel.uiStructure;
_uiViewsCount = _uiStructure.length;
loading = false;
_isLoading = false;
});
}).catchError((e) {
setState(() {
_fetchErrorCode = e["errorCode"] != null ? e["errorCode"] : 2;
loading = false;
_errorCodeToBeShown = e["errorCode"] != null ? e["errorCode"] : 99;
_lastErrorMessage = e["errorMessage"] ?? "Unknown error";
_isLoading = false;
});
});
}
@ -259,7 +282,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
Row titleRow = Row(
children: [Text(_instanceConfig != null ? _instanceConfig["location_name"] : "")],
);
if (loading) {
if (_isLoading) {
titleRow.children.add(Padding(
child: JumpingDotsProgressIndicator(
fontSize: 26.0,
@ -297,35 +320,61 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
);
}
_getErrorMessageByCode(int code, bool short) {
String message = short ? "Unknown error" : "Unknown error";
switch (code) {
case 1: {
message = short ? "Unable to connect" : "Unable to connect\n Please check your internet connection and Home Assistant instance state";
break;
}
}
return message;
}
_checkShowInfo(BuildContext context) {
if (_fetchErrorCode > 0) {
String text = _getErrorMessageByCode(_fetchErrorCode, true);
if (_errorCodeToBeShown > 0) {
String message = _lastErrorMessage;
SnackBarAction action;
switch (_fetchErrorCode) {
switch (_errorCodeToBeShown) {
case 1: {
action = SnackBarAction(
label: "Retry",
onPressed: _refreshData,
onPressed: () {
_scaffoldKey?.currentState?.hideCurrentSnackBar();
_refreshData();
},
);
break;
}
case 5: {
message = "Check connection settings";
action = SnackBarAction(
label: "Open",
onPressed: () {
_scaffoldKey?.currentState?.hideCurrentSnackBar();
Navigator.pushNamed(context, '/connection-settings');
},
);
break;
}
case 6: {
action = SnackBarAction(
label: "Settings",
onPressed: () {
_scaffoldKey?.currentState?.hideCurrentSnackBar();
Navigator.pushNamed(context, '/connection-settings');
},
);
break;
}
case 7: {
action = SnackBarAction(
label: "Retry",
onPressed: () {
_scaffoldKey?.currentState?.hideCurrentSnackBar();
_refreshData();
},
);
break;
}
}
Timer(Duration(seconds: 1), () {
_scaffoldKey.currentState.hideCurrentSnackBar();
_scaffoldKey.currentState.showSnackBar(
SnackBar(
content: Text("$text"),
content: Text("$message (code: $_errorCodeToBeShown)"),
action: action,
duration: Duration(hours: 1),
)
@ -363,7 +412,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
Icon(
_createMDIfromCode(MaterialDesignIcons.getCustomIconByName("mdi:home-assistant")),
size: 100.0,
color: _fetchErrorCode == 0 ? Colors.blue : Colors.redAccent,
color: _errorCodeToBeShown == 0 ? Colors.blue : Colors.redAccent,
),
]
),