/**
  * Scan directory for new XDR files
  * $Id$
  * $HeadURL$
  * $Author$
  */

#pragma once

#include <QtCore/QObject>
#include <QtCore/QString>

#ifndef XDR_QTHANDLER_DIR_EXPORT
# ifdef BUILD_STATIC_LIBRARIES
#  define XDR_QTHANDLER_DIR_EXPORT
# else
#  ifdef MAKE_XDR_QTHANDLER_DIR_LIB
#   define XDR_QTHANDLER_DIR_EXPORT Q_DECL_EXPORT
#  else
#   define XDR_QTHANDLER_DIR_EXPORT Q_DECL_IMPORT
#  endif
# endif
#endif

class XDR_DirHandlerIfc;
class XDR_QTHANDLER_DIR_EXPORT XDR_DirHandler : public QObject
{
  Q_OBJECT
public:
  XDR_DirHandler(const QString &dirToWatch, bool startWatching = true, QObject *parent = nullptr);
  ~XDR_DirHandler();

  void startWatching();
  QString dirToWatch() const { return m_dirToWatch; }

protected Q_SLOTS:
  virtual void newTelegramArrived(const QString &fullPath) = 0;
private:
  QThread *m_workerThread;
  XDR_DirHandlerIfc *m_workerObject;
  bool       m_startWatching;
  QString    m_dirToWatch;
};

class XDR_QTHANDLER_DIR_EXPORT XDR_DirHandler_emit : public XDR_DirHandler
{
  Q_OBJECT
public:
  XDR_DirHandler_emit(const QString &dirToWatch, QObject *parent = nullptr)
    : XDR_DirHandler(dirToWatch, true, parent)
  {}
  ~XDR_DirHandler_emit()
  {}
protected:
  virtual void newTelegramArrived(const QString &fullPath)
  {
    emit newTelegram(fullPath);
  }

Q_SIGNALS:
  void newTelegram(const QString &fullPath);
};