commandmanager.h

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#ifndef COMMANDMANAGER_H
#define COMMANDMANAGER_H

#include <stack>
#include <queue>

#include "dnai/interfaces/icommand.h"
#include "dnai/controllers/consolecontroller.h"

namespace dnai
{
    namespace commands
    {
        class CommandManager
        {
        private:
            class CommandStack
            {
            public:
                CommandStack() = default;
                ~CommandStack() = default;

            public:
                void push(interfaces::ICommand *c)
                {
                    stack.push_back(c);
                }

                void pop()
                {
                    stack.pop_back();
                }

                interfaces::ICommand *top() const
                {
                    return stack.back();
                }

                bool empty() const
                {
                    return stack.empty();
                }

                void remove(interfaces::ICommand *c)
                {
                    stack.remove(c);
                }

            private:
                std::list<interfaces::ICommand *> stack;
            };

        public:
            CommandManager();

            static CommandManager *Instance();
            void registerCommand(interfaces::ICommand* cmd);

            void execAll();

            void exec(interfaces::ICommand * command);

            void redo(int levels);

            void undo(int levels);

            void setConsoleView(views::Console *consoleView);
            const controllers::ConsoleController& console() const;

            void removeCommand(interfaces::ICommand *c);

        private:
            CommandStack m_undoList;
            CommandStack m_redoList;
            std::queue<interfaces::ICommand *> m_doList;

            controllers::ConsoleController m_console;
            static CommandManager *m_instance;
        };
    }
}

#endif // COMMANDMANAGER_H