Added OTA events callbacks

src/app/OTAManager.cpp

@@ -39,6 +39,11 @@ boolean OTAManager::init(void)
             {
                 _isServiceEnabled = true;
                 _otaUpdater.setLedPin(_boardConfig->getOnBoard_LED(), LOW);
+                _otaUpdater.onStart(std::bind(&OTAManager::updateStartedCb, this));
+                _otaUpdater.onError(std::bind(&OTAManager::updateErrorCb, this, std::placeholders::_1));
+                _otaUpdater.onProgress(std::bind(&OTAManager::updateProgressdCb, this, std::placeholders::_1, std::placeholders::_2));
+                _otaUpdater.onEnd(std::bind(&OTAManager::updateFinishedCb, this));
+
 
                 _otaUpdater.setServerAddress((*otaCfg)("OTA_SERVER_ADDRESS")->stringValue());
                 
@@ -86,4 +91,24 @@ boolean OTAManager::isEnabled(void) const
 OTAUpdater& OTAManager::getOTAUpdater(void)
 {
     return _otaUpdater;
-}
+}
+
+void OTAManager::updateStartedCb(void)
+{
+    Serial.println("CALLBACK:  HTTP update process started");
+}
+
+void OTAManager::updateFinishedCb(void)
+{
+    Serial.println("CALLBACK:  HTTP update process finished");
+}
+
+void OTAManager::updateProgressdCb(int cur, int total)
+{
+    Serial.printf("CALLBACK:  HTTP update process at %d of %d bytes...\n", cur, total);
+}
+
+void OTAManager::updateErrorCb(int err)
+{
+    Serial.printf("CALLBACK:  HTTP update fatal error code %d\n", err);
+}

src/app/OTAManager.h

@@ -18,6 +18,11 @@ class OTAManager
         OTAManager(SDCardManager &sdCardManager, const BoardConfig &boardConfig);
         OTAManager();
     private:
+        void updateStartedCb(void);
+        void updateFinishedCb(void);
+        void updateProgressdCb(int cur, int total);
+        void updateErrorCb(int err);
+
         OTAUpdater _otaUpdater;
         SDCardManager *_sdCardManager = nullptr;
         const BoardConfig * _boardConfig = nullptr;