Introduce the SyncOrchestrator

CURA-6983

plugins/Toolbox/src/CloudSync/DiscrepanciesPresenter.py

@@ -0,0 +1,33 @@
+import os
+from typing import Optional
+
+from PyQt5.QtCore import QObject
+
+from UM.Qt.QtApplication import QtApplication
+from UM.Signal import Signal
+from plugins.Toolbox.src.CloudSync.SubscribedPackagesModel import SubscribedPackagesModel
+
+
+## Shows a list of packages to be added or removed. The user can select which packages to (un)install. The user's
+#  choices are emitted on the `packageMutations` Signal.
+class DiscrepanciesPresenter(QObject):
+
+    def __init__(self, app: QtApplication):
+        super().__init__(app)
+
+        self.packageMutations = Signal()  # {"SettingsGuide" : "install", "PrinterSettings" : "uninstall"}
+
+        self._app = app
+        self._dialog = None  # type: Optional[QObject]
+        self._compatibility_dialog_path = "resources/qml/dialogs/CompatibilityDialog.qml"
+
+    def present(self, plugin_path: str, model: SubscribedPackagesModel):
+        path = os.path.join(plugin_path, self._compatibility_dialog_path)
+        self._dialog = self._app.createQmlComponent(path, {"subscribedPackagesModel": model})
+        self._dialog.accepted.connect(lambda: self._onConfirmClicked(model))
+
+    def _onConfirmClicked(self, model: SubscribedPackagesModel):
+        # For now, all packages presented to the user should be installed.
+        # Later, we will support uninstall ?or ignoring? of a certain package
+        choices = {item["package_id"]: "install" for item in model.items}
+        self.packageMutations.emit(choices)