Add CloudOutputDeviceManager, test implementation

plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDeviceManager.py

@@ -0,0 +1,31 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+from typing import TYPE_CHECKING
+
+from plugins.UM3NetworkPrinting.src.Cloud.CloudOutputDevice import CloudOutputDevice
+
+
+if TYPE_CHECKING:
+    from cura.CuraApplication import CuraApplication
+    
+
+##  The cloud output device manager is responsible for using the Ultimaker Cloud APIs to manage remote clusters.
+#   Keeping all cloud related logic in this class instead of the UM3OutputDevicePlugin results in more readable code.
+class CloudOutputDeviceManager:
+    
+    def __init__(self, application: "CuraApplication"):
+        self._output_device_manager = application.getOutputDeviceManager()
+        self._account = application.getCuraAPI().account
+        self._getRemoteClusters()
+        
+        # For testing:
+        application.globalContainerStackChanged.connect(self._addCloudOutputDevice)
+        
+    def _getRemoteClusters(self):
+        # TODO: get list of remote clusters and create an output device for each.
+        pass
+    
+    def _addCloudOutputDevice(self):
+        device = CloudOutputDevice("xxxx-xxxx-xxxx-xxxx")
+        self._output_device_manager.addOutputDevice(device)
+        device.connect()