#ifndef STORM_SETTINGS_SETTINGMEMENTO_H_
#define STORM_SETTINGS_SETTINGMEMENTO_H_

#include <string>
#include <memory>


namespace storm {
    namespace settings {
        
        // Forward-declare the module settings.
        namespace modules {
            class ModuleSettings;
        }
        
        /*!
         * This class is used to reset the state of an option that was temporarily set to a different status.
         */
        class SettingMemento {
		public:
            /*!
             * Constructs a new memento for the specified option.
             *
             * @param settings The settings object in which to restore the state of the option.
             * @param longOptionName The long name of the option.
             * @param resetToState A flag that indicates the status to which the option is to be reset upon
             * deconstruction of this object.
             */
            SettingMemento(modules::ModuleSettings& settings, std::string const& longOptionName, bool resetToState);
            
            /*!
             * Destructs the memento object and resets the value of the option to its original state.
             */
            virtual ~SettingMemento();
            
		private:
            // The settings object in which the setting is to be restored.
            modules::ModuleSettings& settings;
            
            // The long name of the option that was temporarily set.
			std::string const optionName;
            
            // The state of the option before it was set.
			bool resetToState;
        };
        
    } // namespace settings
} // namespace storm

#endif // STORM_SETTINGS_SETTINGMEMENTO_H_