FirmwareUpgrade: Add File Not Found error message

src/VehicleSetup/FirmwareUpgradeController.cc

@@ -575,12 +575,32 @@ void FirmwareUpgradeController::_downloadError(QNetworkReply::NetworkError code)
     
     if (code == QNetworkReply::OperationCanceledError) {
         errorMsg = "Download cancelled";
+
+    } else if (code == QNetworkReply::ContentNotFoundError) {
+        errorMsg = QString("Error: File Not Found. Please check %1 firmware version is available.")
+                      .arg(firmwareTypeAsString(_selectedFirmwareType));
+
     } else {
         errorMsg = QString("Error during download. Error: %1").arg(code);
     }
     _errorCancel(errorMsg);
 }
 
+/// @brief returns firmware type as a string
+QString FirmwareUpgradeController::firmwareTypeAsString(FirmwareType_t type) const
+{
+    switch (type) {
+    case StableFirmware:
+        return "stable";
+    case DeveloperFirmware:
+        return "developer";
+    case BetaFirmware:
+        return "beta";
+    default:
+        return "custom";
+    }
+}
+
 /// @brief Signals completion of one of the specified bootloader commands. Moves the state machine to the
 ///         appropriate next step.
 void FirmwareUpgradeController::_flashComplete(void)

src/VehicleSetup/FirmwareUpgradeController.h

@@ -147,9 +147,10 @@ public:
 
     FirmwareType_t selectedFirmwareType(void) { return _selectedFirmwareType; }
     void setSelectedFirmwareType(FirmwareType_t firmwareType);
+    QString firmwareTypeAsString(FirmwareType_t type) const;
 
     QStringList apmAvailableVersions(void);
-    
+
 signals:
     void boardFound(void);
     void noBoardFound(void);