/*!
 * @file shell_command_class.h
 * Definition of a on-screen-shell
 */

#ifndef _SHELL_COMMAND_CLASS_H
#define _SHELL_COMMAND_CLASS_H

#include "base_object.h"


// FORWARD DECLARATION
template<class T> class tList;

////////////////
// BASE CLASS //
////////////////
class ShellCommand;
class ShellCommandAlias;

//! A class to hold all Classes that have (once) registered Commands.
class ShellCommandClass : public BaseObject
{
  friend class ShellCommand;

  public:
    /** @returns the CommandClassList */
    static const tList<ShellCommandClass>* getCommandClassList() { return ShellCommandClass::commandClassList; };
    static bool getCommandListOfClass(const char* className, tList<const char>* stringList);
    static bool getCommandListOfAlias(tList<const char>* aliasList);

    static ShellCommandClass* getCommandClass(const char* className);
    static void unregisterAllCommands();

    static void help (const char* className);

  private:
    ShellCommandClass(const char* className);
    ~ShellCommandClass();

    static const ShellCommandClass* isRegistered(const char* className);
    static void initCommandClassList();

  private:
    const char*                      className;                 //!< The Name of the Class. This should match the ClassName of the Commands Class.
    long                             classID;                   //!< The classID of this Class
    tList<ShellCommand>*             commandList;               //!< A list of Commands from this Class
    static tList<ShellCommandClass>* commandClassList;          //!< A list of Classes
    static tList<ShellCommandAlias>* aliasList;                 //!< An Alias to A Command. (only for classes with one Instance)
};

#endif /* _SHELL_COMMAND_H */