add network timeout to restart option

Network.cpp

@@ -116,6 +116,13 @@ void Network::initialize()
 
     _device->mqttClient()->setServer(_mqttBrokerAddr, port);
     _device->mqttClient()->setCallback(Network::onMqttDataReceivedCallback);
+
+    _networkTimeout = _preferences->getInt(preference_network_timeout);
+    if(_networkTimeout == 0)
+    {
+        _networkTimeout = -1;
+        _preferences->putInt(preference_network_timeout, _networkTimeout);
+    }
 }
 
 bool Network::reconnect()
@@ -165,8 +172,6 @@ void Network::update()
 {
     long ts = millis();
 
-    if((ts - _lastMaintain) > 1000)
-    {
     _device->update();
 
     if(!_device->isConnected())
@@ -175,13 +180,20 @@ void Network::update()
         bool success = _device->reconnect();
         Serial.println(success ? F("Reconnect successful") : F("Reconnect failed"));
     }
-    }
 
     if(!_device->isConnected())
     {
+        if(ts - _lastConnectedTs > _networkTimeout * 1000)
+        {
+            Serial.println("Network timeout has been reached, restarting ...");
+            delay(200);
+            ESP.restart();
+        }
         return;
     }
 
+    _lastConnectedTs = ts;
+
     if(!_device->mqttClient()->connected())
     {
         bool success = reconnect();

Network.h

@@ -68,6 +68,9 @@ private:
     char _mqttPath[181] = {0};
     char _mqttUser[31] = {0};
     char _mqttPass[31] = {0};
+    int _networkTimeout = 0;
+
+    unsigned long _lastConnectedTs = 0;
 
     char* _presenceCsv = nullptr;
 
@@ -75,8 +78,6 @@ private:
 
     bool _firstTunerStatePublish = true;
 
-    long _lastMaintain = 0;
-
     bool (*_lockActionReceivedCallback)(const char* value) = nullptr;
     void (*_configUpdateReceivedCallback)(const char* path, const char* value) = nullptr;
 };

WebCfgServer.cpp

@@ -146,6 +146,11 @@ bool WebCfgServer::processArgs(String& message)
             _preferences->putString(preference_hostname, value);
             configChanged = true;
         }
+        else if(key == "NETTIMEOUT")
+        {
+            _preferences->putInt(preference_network_timeout, value.toInt());
+            configChanged = true;
+        }
         else if(key == "LSTINT")
         {
             _preferences->putInt(preference_query_interval_lockstate, value.toInt());
@@ -265,10 +270,11 @@ void WebCfgServer::buildHtml(String& response)
     printInputField(response, "MQTTPASS", "MQTT Password", "*", 30, true);
     printInputField(response, "MQTTPATH", "MQTT Path", _preferences->getString(preference_mqtt_path).c_str(), 180);
     printInputField(response, "HOSTNAME", "Host name", _preferences->getString(preference_hostname).c_str(), 100);
+    printInputField(response, "NETTIMEOUT", "Network Timeout until restart (seconds; -1 to disable)", _preferences->getInt(preference_network_timeout), 5);
     printInputField(response, "LSTINT", "Query interval lock state (seconds)", _preferences->getInt(preference_query_interval_lockstate), 10);
     printInputField(response, "BATINT", "Query interval battery (seconds)", _preferences->getInt(preference_query_interval_battery), 10);
     printCheckBox(response, "PUBAUTH", "Publish auth data (May reduce battery life)", _preferences->getBool(preference_publish_authdata));
-    printInputField(response, "PRDTMO", "Presence detection timeout (seconds, -1 to disable)", _preferences->getInt(preference_presence_detection_timeout), 10);
+    printInputField(response, "PRDTMO", "Presence detection timeout (seconds; -1 to disable)", _preferences->getInt(preference_presence_detection_timeout), 10);
     response.concat("</table>");
 
     response.concat("<br><INPUT TYPE=SUBMIT NAME=\"submit\" VALUE=\"Save\">");