/// <summary>
/// Default constructor. Resolves references to quest list model and command factories.
/// </summary>
public QuestListViewModel(
IQuestListModel questListModel,
IStateCommandsFactory stateCommandsFactory,
ITreeCommandsFactory treeCommandsFactory)
{
questListModel.ThrowIfNull(nameof(questListModel));
stateCommandsFactory.ThrowIfNull(nameof(stateCommandsFactory));
treeCommandsFactory.ThrowIfNull(nameof(treeCommandsFactory));
QuestListModel = questListModel;
StateCommads = stateCommandsFactory;
TreeCommands = treeCommandsFactory;
}