refactor: optimizing work with network

lib/NetworkUtils/NetworkConnection.cpp

@@ -13,6 +13,7 @@ void NetworkConnection::setup(bool useDhcp) {
 
 void NetworkConnection::reset() {
   status = Status::NONE;
+  rawDisconnectReason = 0;
   disconnectReason = DisconnectReason::NONE;
 }
 
@@ -33,22 +34,25 @@ void NetworkConnection::onEvent(System_Event_t *event) {
   switch (event->event) {
     case EVENT_STAMODE_CONNECTED:
       status = useDhcp ? Status::CONNECTING : Status::CONNECTED;
+      rawDisconnectReason = 0;
       disconnectReason = DisconnectReason::NONE;
-      
       break;
 
     case EVENT_STAMODE_GOT_IP:
       status = Status::CONNECTED;
+      rawDisconnectReason = 0;
       disconnectReason = DisconnectReason::NONE;
       break;
 
     case EVENT_STAMODE_DHCP_TIMEOUT:
       status = Status::DISCONNECTED;
+      rawDisconnectReason = 0;
       disconnectReason = DisconnectReason::DHCP_TIMEOUT;
       break;
 
     case EVENT_STAMODE_DISCONNECTED:
       status = Status::DISCONNECTED;
+      rawDisconnectReason = event->event_info.disconnected.reason;
       disconnectReason = convertDisconnectReason(event->event_info.disconnected.reason);
 
       // https://github.com/esp8266/Arduino/blob/d5eb265f78bff9deb7063d10030a02d021c8c66c/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp#L231
@@ -63,6 +67,7 @@ void NetworkConnection::onEvent(System_Event_t *event) {
         auto& src = event->event_info.auth_change;
         if ((src.old_mode != AUTH_OPEN) && (src.new_mode == AUTH_OPEN)) {
           status = Status::DISCONNECTED;
+          rawDisconnectReason = 0;
           disconnectReason = DisconnectReason::OTHER;
 
           wifi_station_disconnect();
@@ -79,25 +84,27 @@ void NetworkConnection::onEvent(WiFiEvent_t event, WiFiEventInfo_t info) {
   switch (event) {
     case ARDUINO_EVENT_WIFI_STA_CONNECTED:
       status = useDhcp ? Status::CONNECTING : Status::CONNECTED;
+      rawDisconnectReason = 0;
       disconnectReason = DisconnectReason::NONE;
-      
       break;
 
     case ARDUINO_EVENT_WIFI_STA_GOT_IP:
     case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
       status = Status::CONNECTED;
+      rawDisconnectReason = 0;
       disconnectReason = DisconnectReason::NONE;
       break;
 
     case ARDUINO_EVENT_WIFI_STA_LOST_IP:
       status = Status::DISCONNECTED;
+      rawDisconnectReason = 0;
       disconnectReason = DisconnectReason::DHCP_TIMEOUT;
       break;
 
     case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
       status = Status::DISCONNECTED;
+      rawDisconnectReason = info.wifi_sta_disconnected.reason;
       disconnectReason = convertDisconnectReason(info.wifi_sta_disconnected.reason);
-
       break;
     
     default:
@@ -148,3 +155,4 @@ NetworkConnection::DisconnectReason NetworkConnection::convertDisconnectReason(u
 bool NetworkConnection::useDhcp = false;
 NetworkConnection::Status NetworkConnection::status = Status::NONE;
 NetworkConnection::DisconnectReason NetworkConnection::disconnectReason = DisconnectReason::NONE;
+uint8_t NetworkConnection::rawDisconnectReason = 0;

lib/NetworkUtils/NetworkConnection.h

@@ -27,6 +27,7 @@ namespace NetworkUtils {
 
     static Status status;
     static DisconnectReason disconnectReason;
+    static uint8_t rawDisconnectReason;
     
     static void setup(bool useDhcp);
     static void setUseDhcp(bool value);

lib/NetworkUtils/NetworkMgr.h

@@ -212,7 +212,7 @@ namespace NetworkUtils {
         }
         #endif*/
 
-        WiFi.disconnect(false, true);
+        this->disconnect();
       }
 
       if (!this->hasStaCredentials()) {
@@ -266,13 +266,17 @@ namespace NetworkUtils {
       return false;
     }
 
+    void disconnect() {
+      WiFi.disconnect(false, true);
+    }
+
     void loop() {
       if (this->reconnectFlag) {
         this->delayCallback(5000);
 
         Log.sinfoln(FPSTR(L_NETWORK), F("Reconnecting..."));
         this->reconnectFlag = false;
-        this->resetWifi();
+        this->disconnect();
         NetworkConnection::reset();
         this->delayCallback(1000);
 
@@ -297,7 +301,7 @@ namespace NetworkUtils {
         }
 
         if (this->isApEnabled() && millis() - this->connectedTime > this->reconnectInterval && !this->hasApClients()) {
-          Log.sinfoln(FPSTR(L_NETWORK), F("Stop AP because connected, start only STA"));
+          Log.sinfoln(FPSTR(L_NETWORK), F("Stop AP because STA connected"));
 
           WiFi.mode(WIFI_STA);
           return;
@@ -348,7 +352,7 @@ namespace NetworkUtils {
 
           NetworkConnection::reset();
           if (!this->connect(true, this->connectionTimeout)) {
-            Log.straceln(FPSTR(L_NETWORK), F("Connection failed. Status: %d, reason: %d"), NetworkConnection::getStatus(), NetworkConnection::getDisconnectReason());
+            Log.straceln(FPSTR(L_NETWORK), F("Connection failed. Status: %d, reason: %d, raw reason: %d"), NetworkConnection::getStatus(), NetworkConnection::getDisconnectReason(), NetworkConnection::rawDisconnectReason);
           }
 
           this->prevReconnectingTime = millis();

src/PortalTask.h

@@ -623,6 +623,10 @@ protected:
     if (this->stateWebServer()) {
       this->webServer->handleClient();
     }
+
+    if (!this->stateDnsServer() && !this->stateWebServer()) {
+      this->delay(250);
+    }
   }
 
   bool isAuthRequired() {