#include "ntxclipboard.h"

namespace ntx
{
  void NtxClipboard::copyNodes(const NtxNodeList& nodes)
  {
    m_nodeEntryList.clear();

    for (const auto& node : nodes)
    {
      if (!node) continue;

      NtxNodeEntry entry;
      entry.clone = createOrphanClone(node);
      entry.originalParent = node->getParent();
      entry.originalPosition = node->ownPos().value_or(0);

      m_nodeEntryList.push_back(entry);
    }
  }

  void NtxClipboard::cutNodes(const NtxNodeList& nodes)
  {
    // Identisch zu copyNodes - Der Unterschied liegt in NtxHeadNode
    copyNodes(nodes);
  }

  NtxNodeList NtxClipboard::pasteNodes() const
  {
    NtxNodeList result;

    for (const auto& entry : m_nodeEntryList)
    {
      if (!entry.clone) continue;

      // Neuen Klon vom Clipboard-Clone erstellen (mehrfaches Paste möglich)
      auto freshClone = entry.clone->clone();
      if (freshClone)
      {
        result.push_back(freshClone);
      }
    }

    return result;
  }

  bool NtxClipboard::isEmpty() const
  {
    return m_nodeEntryList.empty();
  }

  size_t NtxClipboard::getCount() const
  {
    return m_nodeEntryList.size();
  }

  void NtxClipboard::clear()
  {
    m_nodeEntryList.clear();
  }

  const NtxNodeEntryList& NtxClipboard::getEntries() const
  {
    return m_nodeEntryList;
  }

  NtxNodePtr NtxClipboard::createOrphanClone(NtxNodePtr node) const
  {
    if (!node) return nullptr;

    // Deep-Clone erstellen
    auto clone = node->clone();

    // Parent-Verbindung trennen (Elternlos machen)
    if (clone)
    {
      clone->setParent(nullptr);
    }

    return clone;
  }

} // namespace ntx