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ha_client/lib/home_assistant.class.dart
2020-05-16 21:25:58 +00:00

353 lines
11 KiB
Dart

part of 'main.dart';
class HomeAssistant {
static const DEFAULT_DASHBOARD = 'lovelace';
static final HomeAssistant _instance = HomeAssistant._internal();
factory HomeAssistant() {
return _instance;
}
EntityCollection entities;
HomeAssistantUI ui;
Map _instanceConfig = {};
String _userName;
String currentDashboardPath;
HSVColor savedColor;
int savedPlayerPosition;
String sendToPlayerId;
String sendFromPlayerId;
Map services;
bool autoUi = false;
String fcmToken;
Map _rawLovelaceData;
var _rawStates;
var _rawUserInfo;
var _rawPanels;
List<Panel> panels = [];
Duration fetchTimeout = Duration(seconds: 30);
String get locationName {
if (!autoUi) {
return ui?.title ?? "Home";
} else {
return _instanceConfig["location_name"] ?? "Home";
}
}
String get userName => _userName ?? '';
String get userAvatarText => userName.length > 0 ? userName[0] : "";
bool get isNoEntities => entities == null || entities.isEmpty;
bool get isNoViews => ui == null || ui.isEmpty;
HomeAssistant._internal() {
ConnectionManager().onStateChangeCallback = _handleEntityStateChange;
ConnectionManager().onLovelaceUpdatedCallback = _handleLovelaceUpdate;
DeviceInfoManager().loadDeviceInfo();
}
Completer _fetchCompleter;
Future fetchData(bool uiOnly) {
if (_fetchCompleter != null && !_fetchCompleter.isCompleted) {
Logger.w("Previous data fetch is not completed yet");
return _fetchCompleter.future;
}
_fetchCompleter = Completer();
List<Future> futures = [];
if (!uiOnly) {
if (entities == null) entities = EntityCollection(AppSettings().httpWebHost);
futures.add(_getStates(null));
futures.add(_getConfig(null));
futures.add(_getUserInfo(null));
futures.add(_getPanels(null));
futures.add(_getServices(null));
}
if (!autoUi) {
futures.add(_getLovelace(null));
}
Future.wait(futures).then((_) {
if (isComponentEnabled('mobile_app')) {
_createUI();
_fetchCompleter.complete();
} else {
_fetchCompleter.completeError(HACException("Mobile app component not found", actions: [HAErrorAction.tryAgain(), HAErrorAction(type: HAErrorActionType.URL ,title: "Help",url: "http://ha-client.app/docs#mobile-app-integration")]));
}
}).catchError((e) {
_fetchCompleter.completeError(e);
});
return _fetchCompleter.future;
}
Future<void> fetchDataFromCache() async {
Logger.d('Loading cached data');
SharedPreferences prefs = await SharedPreferences.getInstance();
bool cached = prefs.getBool('cached');
if (cached != null && cached) {
if (entities == null) entities = EntityCollection(AppSettings().httpWebHost);
try {
_getStates(prefs);
if (!autoUi) {
_getLovelace(prefs);
}
_getConfig(prefs);
_getUserInfo(prefs);
_getPanels(prefs);
_getServices(prefs);
if (isComponentEnabled('mobile_app')) {
_createUI();
}
} catch (e) {
Logger.d('Didnt get cached data: $e');
}
}
}
void saveCache() async {
Logger.d('Saving data to cache...');
SharedPreferences prefs = await SharedPreferences.getInstance();
try {
await prefs.setString('cached_states', json.encode(_rawStates));
await prefs.setString('cached_lovelace', json.encode(_rawLovelaceData));
await prefs.setString('cached_user', json.encode(_rawUserInfo));
await prefs.setString('cached_config', json.encode(_instanceConfig));
await prefs.setString('cached_panels', json.encode(_rawPanels));
await prefs.setString('cached_services', json.encode(services));
await prefs.setBool('cached', true);
} catch (e, stacktrace) {
await prefs.setBool('cached', false);
Logger.e('Error saving cache: $e', stacktrace: stacktrace);
}
Logger.d('Done saving cache');
}
Future logout() async {
Logger.d("Logging out...");
await ConnectionManager().logout().then((_) {
ui?.clear();
entities?.clear();
panels?.clear();
});
}
Future _getConfig(SharedPreferences sharedPrefs) async {
_instanceConfig?.clear();
if (sharedPrefs != null && sharedPrefs.containsKey('cached_config')) {
try {
var data = json.decode(sharedPrefs.getString('cached_config'));
_parseConfig(data);
} catch (e, stacktrace) {
Logger.e('Error gettong config from cache: $e', stacktrace: stacktrace);
}
} else {
await ConnectionManager().sendSocketMessage(type: "get_config").then((data) => _parseConfig(data)).catchError((e) {
Logger.e('get_config error: $e');
throw HACException("Error getting config: $e");
});
}
}
void _parseConfig(data) {
_instanceConfig = data;
}
Future _getStates(SharedPreferences sharedPrefs) async {
if (sharedPrefs != null && sharedPrefs.containsKey('cached_states')) {
try {
var data = json.decode(sharedPrefs.getString('cached_states'));
_parseStates(data ?? []);
} catch (e, stacktrace) {
Logger.e('Error getting cached states: $e', stacktrace: stacktrace);
}
} else {
await ConnectionManager().sendSocketMessage(type: "get_states").then(
(data) => _parseStates(data)
).catchError((e) {
Logger.e('get_states error: $e');
throw HACException("Error getting states: $e");
});
}
}
void _parseStates(data) {
_rawStates = data;
entities.parse(data);
}
Future _getLovelace(SharedPreferences sharedPrefs) {
if (sharedPrefs != null && sharedPrefs.containsKey('cached_lovelace')) {
try {
var data = json.decode(sharedPrefs.getString('cached_lovelace'));
_rawLovelaceData = data;
} catch (e) {
autoUi = true;
}
return Future.value();
} else {
Completer completer = Completer();
var additionalData;
if (AppSettings().haVersion >= 107 && currentDashboardPath != HomeAssistant.DEFAULT_DASHBOARD) {
additionalData = {
'url_path': currentDashboardPath
};
}
ConnectionManager().sendSocketMessage(
type: 'lovelace/config',
additionalData: additionalData
).then((data) {
_rawLovelaceData = data;
completer.complete();
}).catchError((e) {
if ("$e".contains("config_not_found")) {
autoUi = true;
_rawLovelaceData = null;
completer.complete();
} else {
Logger.e('lovelace/config error: $e');
completer.completeError(HACException("Error getting lovelace config: $e"));
}
});
return completer.future;
}
}
Future _getServices(SharedPreferences prefs) async {
services?.clear();
if (prefs != null && prefs.containsKey('cached_services')) {
try {
var data = json.decode(prefs.getString('cached_services'));
_parseServices(data ?? {});
} catch (e, stacktrace) {
Logger.e(e, stacktrace: stacktrace);
}
}
await ConnectionManager().sendSocketMessage(type: "get_services").then((data) => _parseServices(data)).catchError((e) {
Logger.e('get_services error: $e');
});
}
void _parseServices(data) {
services = data;
}
Future _getUserInfo(SharedPreferences sharedPrefs) async {
_userName = null;
if (sharedPrefs != null && sharedPrefs.containsKey('cached_user')) {
try {
var data = json.decode(sharedPrefs.getString('cached_user'));
_parseUserInfo(data ?? {});
} catch (e, stacktrace) {
Logger.e('Error getting cached user info: $e', stacktrace: stacktrace);
}
return Future.value();
} else {
await ConnectionManager().sendSocketMessage(type: "auth/current_user").then((data) => _parseUserInfo(data)).catchError((e) {
Logger.e('auth/current_user error: $e');
});
}
}
void _parseUserInfo(data) {
_rawUserInfo = data;
_userName = data["name"];
}
Future _getPanels(SharedPreferences sharedPrefs) async {
if (sharedPrefs != null && sharedPrefs.containsKey('cached_panels')) {
try {
var data = json.decode(sharedPrefs.getString('cached_panels'));
_parsePanels(data ?? {});
} catch (e, stacktrace) {
Logger.e(e, stacktrace: stacktrace);
panels.clear();
}
} else {
await ConnectionManager().sendSocketMessage(type: "get_panels").then((data) => _parsePanels(data)).catchError((e, stacktrace) {
Logger.e('get_panels error: $e', stacktrace: stacktrace);
panels.clear();
throw HACException('Can\'t get panels: $e');
});
}
}
void _parsePanels(data) {
panels.clear();
_rawPanels = data;
List<Panel> dashboards = [];
data.forEach((k,v) {
String title = v['title'] == null ? "${k[0].toUpperCase()}${k.substring(1)}" : "${v['title'][0].toUpperCase()}${v['title'].substring(1)}";
if (v['component_name'] != null && v['component_name'] == 'lovelace') {
dashboards.add(
Panel(
id: k,
componentName: v['component_name'],
title: title,
urlPath: v['url_path'],
config: v['config'],
icon: (v['icon'] == null || v['icon'] == 'hass:view-dashboard') ? 'mdi:view-dashboard' : v['icon']
)
);
} else {
panels.add(
Panel(
id: k,
componentName: v['component_name'],
title: title,
urlPath: v['url_path'],
config: v['config'],
icon: v['icon']
)
);
}
});
panels.insertAll(0, dashboards);
}
Future getCameraStream(String entityId) {
Completer completer = Completer();
ConnectionManager().sendSocketMessage(type: "camera/stream", additionalData: {"entity_id": entityId}).then((data) {
completer.complete(data);
}).catchError((e) {
completer.completeError(e);
});
return completer.future;
}
bool isComponentEnabled(String name) {
return _instanceConfig["components"] != null && (_instanceConfig["components"] as List).contains("$name");
}
void _handleLovelaceUpdate() {
if (_fetchCompleter != null && _fetchCompleter.isCompleted) {
eventBus.fire(new LovelaceChangedEvent());
}
}
void _handleEntityStateChange(Map eventData) {
if (_fetchCompleter != null && _fetchCompleter.isCompleted) {
Map data = Map.from(eventData);
eventBus.fire(new StateChangedEvent(
entityId: data["entity_id"],
needToRebuildUI: entities.updateState(data)
));
}
}
bool isServiceExist(String service) {
return services != null &&
services.isNotEmpty &&
services.containsKey(service);
}
void _createUI() {
Logger.d("Creating Lovelace UI");
ui = HomeAssistantUI(rawLovelaceConfig: _rawLovelaceData);
}
}