def test_delete_with_invalid_task_is_noop() -> None:
manager = TaskManager([Task("fiog")])
manager.delete(Task("fop"))
assert manager.tasks() == [Task("fiog")]
class MainPresenter:
def __init__(self,
view: _View,
serializer_type: Type[_Serializer] = JsonSerializer) -> None:
self._view = view
self._serializer_type = serializer_type
self._serializer: Optional[_Serializer] = None
self._task_manager: Optional[TaskManager] = None
def load_from_file(self, path: Path) -> None:
self._serializer = self._serializer_type(path)
self._task_manager = TaskManager(self._serializer.load())
self._view.setWindowTitle(path.name)
self.request_update()
def request_update(self) -> None:
if self._task_manager is None:
self._view.hide_lists()
else:
self._view.update_tasks(self._task_manager.tasks())
def _save_and_update_view(self) -> None:
assert self._task_manager is not None
assert self._serializer is not None
self._serializer.save(self._task_manager.tasks())
self._view.update_tasks(self._task_manager.tasks())
self._view.set_undoable(self._task_manager.is_undoable())
self._view.set_redoable(self._task_manager.is_redoable())
def add_task(self, task: Task) -> None:
assert self._task_manager is not None
self._task_manager.add(task)
self._save_and_update_view()
def complete_task(self, task: Task, completed: bool = True) -> None:
assert self._task_manager is not None
self._task_manager.set_complete(task, completed)
self._save_and_update_view()
def delete_task(self, task: Task) -> None:
assert self._task_manager is not None
self._task_manager.delete(task)
self._save_and_update_view()
def rename_task(self, task: Task, name: str) -> None:
assert self._task_manager is not None
self._task_manager.rename(task, name)
self._save_and_update_view()
def set_task_due(self, task: Task, due: Optional[date]) -> None:
assert self._task_manager is not None
self._task_manager.schedule_task(task, due)
self._save_and_update_view()
def set_task_snooze(self, task: Task, snooze: Optional[date]) -> None:
assert self._task_manager is not None
self._task_manager.snooze(task, snooze)
self._save_and_update_view()
def set_importance(self, task: Task, importance: Importance) -> None:
assert self._task_manager is not None
self._task_manager.set_importance(task, importance)
self._save_and_update_view()
def undo(self) -> None:
assert self._task_manager is not None
self._task_manager.undo()
self._save_and_update_view()
def redo(self) -> None:
assert self._task_manager is not None
self._task_manager.redo()
self._save_and_update_view()
def test_delete() -> None:
manager = TaskManager([Task("fmnk"), Task("jdoi")])
manager.delete(Task("fmnk"))
assert manager.tasks() == [Task("jdoi")]
