#ifndef NTX_ICOMMAND_H
#define NTX_ICOMMAND_H

#include <ntxinode.h>
#include <memory>

namespace ntx
{

  // Einfache Struct für Clipboard-Eintrag
  struct NtxNodeEntry
  {
    NtxNodePtr clone;              // Elternloser Deep-Clone
    NtxNodeWeakPtr originalParent; // Schwache Referenz für Undo
    size_t originalPosition;       // Position im Original-Parent
  };

	using NtxNodeEntryList = std::vector<NtxNodeEntry>;

  class NtxICommand
  {
  public:

    virtual ~NtxICommand() = default;

    virtual bool execute() = 0;
    virtual bool undo() = 0;

    virtual bool canExecute() const = 0;
    virtual bool canUndo() const;

    virtual NtxString getDescription() const;

  protected:

    NtxICommand() = default;
    NtxICommand(const NtxICommand&) = default;
    NtxICommand& operator=(const NtxICommand&) = default;

    void setDescription(const NtxString& description);

  private:

    NtxString m_description;
  };

  using NtxCommandPtr = std::shared_ptr<NtxICommand>;
  using NtxCommandUPtr = std::unique_ptr<NtxICommand>;

} // namespace ntx

#endif // NTX_ICOMMAND_H