♻️ Restructured sources and managers

src/store/managers/manager.py

@@ -0,0 +1,49 @@
+from abc import abstractmethod
+from gi.repository import Gio
+
+from src.game import Game
+
+
+class Manager:
+    """Class in charge of handling a post creation action for games.
+
+    * May connect to signals on the game to handle them.
+    * May cancel its running tasks on critical error,
+    in that case a new cancellable must be generated for new tasks to run.
+    """
+
+    run_after: set[type["Manager"]]
+
+    cancellable: Gio.Cancellable
+    errors: list[Exception]
+
+    def __init__(self) -> None:
+        super().__init__()
+        self.cancellable = Gio.Cancellable()
+        self.errors = list()
+
+    def cancel_tasks(self):
+        """Cancel all tasks for this manager"""
+        self.cancellable.cancel()
+
+    def reset_cancellable(self):
+        """Reset the cancellable for this manager.
+        Alreadyn scheduled Tasks will no longer be cancellable."""
+        self.cancellable = Gio.Cancellable()
+
+    def report_error(self, error: Exception):
+        """Report an error that happened in of run"""
+        self.errors.append(error)
+
+    def collect_errors(self) -> list[Exception]:
+        """Get the errors produced by the manager and remove them from self.errors"""
+        errors = list(self.errors)
+        self.errors.clear()
+        return errors
+
+    @abstractmethod
+    def run(self, game: Game) -> None:
+        """Pass the game through the manager.
+        May block its thread.
+        May not raise exceptions, as they will be silently ignored."""
+        pass