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ha_client/lib/data_provider.class.dart
2018-09-25 22:47:06 +03:00

353 lines
12 KiB
Dart

part of 'main.dart';
class HADataProvider {
String _hassioAPIEndpoint;
String _hassioPassword;
String _hassioAuthType;
IOWebSocketChannel _hassioChannel;
int _currentMessageId = 0;
int _statesMessageId = 0;
int _servicesMessageId = 0;
int _subscriptionMessageId = 0;
int _configMessageId = 0;
Map _entitiesData = {};
Map _servicesData = {};
Map _uiStructure = {};
Map _instanceConfig = {};
Completer _fetchCompleter;
Completer _statesCompleter;
Completer _servicesCompleter;
Completer _configCompleter;
Timer _fetchingTimer;
List _topBadgeDomains = ["alarm_control_panel", "binary_sensor", "device_tracker", "updater", "sun", "timer", "sensor"];
Map get entities => _entitiesData;
Map get services => _servicesData;
Map get uiStructure => _uiStructure;
Map get instanceConfig => _instanceConfig;
HADataProvider(String url, String password, String authType) {
_hassioAPIEndpoint = url;
_hassioPassword = password;
_hassioAuthType = authType;
}
Future fetch() {
if ((_fetchCompleter != null) && (!_fetchCompleter.isCompleted)) {
TheLogger.log("Warning","Previous fetch is not complited");
} else {
//TODO: Fetch timeout timer. Should be removed after #21 fix
_fetchingTimer = Timer(Duration(seconds: 15), () {
closeConnection();
_fetchCompleter.completeError({"errorCode" : 1,"errorMessage": "Connection timeout"});
});
_fetchCompleter = new Completer();
_reConnectSocket().then((r) {
_getData();
}).catchError((e) {
_finishFetching(e);
});
}
return _fetchCompleter.future;
}
closeConnection() {
if (_hassioChannel?.closeCode == null) {
_hassioChannel?.sink?.close();
}
_hassioChannel = null;
}
Future _reConnectSocket() {
var _connectionCompleter = new Completer();
if ((_hassioChannel == null) || (_hassioChannel.closeCode != null)) {
TheLogger.log("Debug","Socket connecting...");
_hassioChannel = IOWebSocketChannel.connect(_hassioAPIEndpoint);
_hassioChannel.stream.handleError((e) {
TheLogger.log("Error","Unhandled socket error: ${e.toString()}");
});
_hassioChannel.stream.listen((message) =>
_handleMessage(_connectionCompleter, message));
} else {
_connectionCompleter.complete();
}
return _connectionCompleter.future;
}
_getData() {
_getConfig().then((result) {
_getStates().then((result) {
_getServices().then((result) {
_finishFetching(null);
}).catchError((e) {
_finishFetching(e);
});
}).catchError((e) {
_finishFetching(e);
});
}).catchError((e) {
_finishFetching(e);
});
}
_finishFetching(error) {
_fetchingTimer.cancel();
if (error != null) {
_fetchCompleter.completeError(error);
} else {
_fetchCompleter.complete();
}
}
_handleMessage(Completer connectionCompleter, String message) {
var data = json.decode(message);
//TheLogger.log("Debug","[Received] => Message type: ${data['type']}");
if (data["type"] == "auth_required") {
_sendMessageRaw('{"type": "auth","$_hassioAuthType": "$_hassioPassword"}');
} else if (data["type"] == "auth_ok") {
_sendSubscribe();
connectionCompleter.complete();
} else if (data["type"] == "auth_invalid") {
connectionCompleter.completeError({"errorCode": 6, "errorMessage": "${data["message"]}"});
} else if (data["type"] == "result") {
if (data["id"] == _configMessageId) {
_parseConfig(data);
} else if (data["id"] == _statesMessageId) {
_parseEntities(data);
} else if (data["id"] == _servicesMessageId) {
_parseServices(data);
} else if (data["id"] == _currentMessageId) {
TheLogger.log("Debug","Request id:$_currentMessageId was successful");
}
} else if (data["type"] == "event") {
if ((data["event"] != null) && (data["event"]["event_type"] == "state_changed")) {
_handleEntityStateChange(data["event"]["data"]);
} else if (data["event"] != null) {
TheLogger.log("Warning","Unhandled event type: ${data["event"]["event_type"]}");
} else {
TheLogger.log("Error","Event is null: $message");
}
} else {
TheLogger.log("Warning","Unknown message type: $message");
}
}
void _sendSubscribe() {
_incrementMessageId();
_subscriptionMessageId = _currentMessageId;
_sendMessageRaw('{"id": $_subscriptionMessageId, "type": "subscribe_events", "event_type": "state_changed"}');
}
Future _getConfig() {
_configCompleter = new Completer();
_incrementMessageId();
_configMessageId = _currentMessageId;
_sendMessageRaw('{"id": $_configMessageId, "type": "get_config"}');
return _configCompleter.future;
}
Future _getStates() {
_statesCompleter = new Completer();
_incrementMessageId();
_statesMessageId = _currentMessageId;
_sendMessageRaw('{"id": $_statesMessageId, "type": "get_states"}');
return _statesCompleter.future;
}
Future _getServices() {
_servicesCompleter = new Completer();
_incrementMessageId();
_servicesMessageId = _currentMessageId;
_sendMessageRaw('{"id": $_servicesMessageId, "type": "get_services"}');
return _servicesCompleter.future;
}
_incrementMessageId() {
_currentMessageId += 1;
}
_sendMessageRaw(String 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) {
//TheLogger.log("Debug", "Parsing new state for ${eventData['entity_id']}");
if (eventData["new_state"] == null) {
TheLogger.log("Error", "No new_state found");
} else {
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"]));
}
}
void _parseConfig(Map data) {
if (data["success"] == true) {
_instanceConfig = Map.from(data["result"]);
_configCompleter.complete();
} else {
_configCompleter.completeError({"errorCode": 2, "errorMessage": data["error"]["message"]});
}
}
void _parseServices(response) {
if (response["success"] == false) {
_servicesCompleter.completeError({"errorCode": 4, "errorMessage": response["error"]["message"]});
return;
}
try {
Map data = response["result"];
Map result = {};
TheLogger.log("Debug","Parsing ${data.length} Home Assistant service domains");
data.forEach((domain, services) {
result[domain] = Map.from(services);
services.forEach((serviceName, serviceData) {
if (_entitiesData["$domain.$serviceName"] != null) {
result[domain].remove(serviceName);
}
});
});
_servicesData = result;
_servicesCompleter.complete();
} catch (e) {
//TODO hadle it properly
TheLogger.log("Error","Error parsing services. But they are not used :-)");
_servicesCompleter.complete();
}
}
void _parseEntities(response) async {
_entitiesData.clear();
_uiStructure.clear();
if (response["success"] == false) {
_statesCompleter.completeError({"errorCode": 3, "errorMessage": response["error"]["message"]});
return;
}
List data = response["result"];
TheLogger.log("Debug","Parsing ${data.length} Home Assistant entities");
List<String> viewsList = [];
data.forEach((entity) {
try {
var composedEntity = _parseEntity(entity);
if (composedEntity["attributes"] != null) {
if ((composedEntity["domain"] == "group") &&
(composedEntity["attributes"]["view"] == true)) {
viewsList.add(composedEntity["entity_id"]);
}
}
_entitiesData[entity["entity_id"]] = composedEntity;
} catch (error) {
TheLogger.log("Error","Error parsing entity: ${entity['entity_id']}");
}
});
//Gethering information for UI
TheLogger.log("Debug","Gethering views");
int viewCounter = 0;
viewsList.forEach((viewId) { //Each view
try {
Map viewStructure = {};
viewCounter += 1;
var viewGroupData = _entitiesData[viewId];
if ((viewGroupData != null) && (viewGroupData["attributes"] != null)) {
viewStructure["groups"] = {};
viewStructure["state"] = "on";
viewStructure["entity_id"] = viewGroupData["entity_id"];
viewStructure["badges"] = {"children": []};
viewStructure["attributes"] = {
"icon": viewGroupData["attributes"]["icon"]
};
viewGroupData["attributes"]["entity_id"].forEach((
entityId) { //Each entity or group in view
Map newGroup = {};
if (_entitiesData[entityId] != null) {
Map cardOrEntityData = _entitiesData[entityId];
String domain = cardOrEntityData["domain"];
if (domain != "group") {
if (_topBadgeDomains.contains(domain)) {
viewStructure["badges"]["children"].add(entityId);
} else {
String autoGroupID = "$domain.$domain$viewCounter";
if (viewStructure["groups"]["$autoGroupID"] == null) {
newGroup["entity_id"] = "$domain.$domain$viewCounter";
newGroup["friendly_name"] = "$domain";
newGroup["children"] = [];
newGroup["children"].add(entityId);
viewStructure["groups"]["$autoGroupID"] =
Map.from(newGroup);
} else {
viewStructure["groups"]["$autoGroupID"]["children"].add(
entityId);
}
}
} else {
newGroup["entity_id"] = entityId;
newGroup["friendly_name"] =
(cardOrEntityData['attributes'] != null)
? (cardOrEntityData['attributes']['friendly_name'] ??
"")
: "";
newGroup["children"] = List<String>();
cardOrEntityData["attributes"]["entity_id"].forEach((
groupedEntityId) {
newGroup["children"].add(groupedEntityId);
});
viewStructure["groups"]["$entityId"] = Map.from(newGroup);
}
} else {
TheLogger.log("Warning", "Unknown entity inside view: $entityId");
}
});
_uiStructure[viewId.split(".")[1]] = viewStructure;
} else {
TheLogger.log("Warning", "No state or attributes found for view: $viewId");
}
} catch (error) {
TheLogger.log("Error","Error parsing view: $viewId");
}
});
_statesCompleter.complete();
}
Map _parseEntity(rawData) {
var composedEntity = Map.from(rawData);
String entityDomain = rawData["entity_id"].split(".")[0];
composedEntity["display_name"] = "${rawData["attributes"]!=null ? rawData["attributes"]["friendly_name"] ?? rawData["attributes"]["name"] : "_"}";
composedEntity["domain"] = entityDomain;
return composedEntity;
}
Future callService(String domain, String service, String entity_id) {
var sendCompleter = Completer();
//TODO: Send service call timeout timer. Should be removed after #21 fix
Timer _sendTimer = Timer(Duration(seconds: 7), () {
sendCompleter.completeError({"errorCode" : 8,"errorMessage": "Connection timeout"});
});
_reConnectSocket().then((r) {
_incrementMessageId();
_sendMessageRaw('{"id": $_currentMessageId, "type": "call_service", "domain": "$domain", "service": "$service", "service_data": {"entity_id": "$entity_id"}}');
_sendTimer.cancel();
sendCompleter.complete();
}).catchError((e){
_sendTimer.cancel();
sendCompleter.completeError(e);
});
return sendCompleter.future;
}
}