// $Id$
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#ifndef TGO4MBSFILE_H
#define TGO4MBSFILE_H

#include "TGo4MbsSource.h"

class TGo4MbsFileParameter;
class TList;

/**
 * @brief Implements the gsi mbs lmd file source
 * @details This is an alias for the TGo4MbsSource class with parameter GETEVT__FILE
 * @ingroup go4_event
 * @author J. Adamczewski
 * @since 1/2001
 */

class TGo4MbsFile : public TGo4MbsSource {
  public:

    TGo4MbsFile(const char *name);

    TGo4MbsFile();

    TGo4MbsFile(TGo4MbsFileParameter* par);

    ~TGo4MbsFile();

    /** Close the file or connection. */
    Int_t Close() override;

    /** Open the file or connection. */
    Int_t Open() override;

    /** Requests the next event from mbs source. Returns event status value. */
    Int_t NextEvent() override;

    /** Name of the Tagfile */
    const char *GetTagName() const { return fxTagFile.Data(); }

    const char *GetCurrentTagName() const { return fxCurrentTag.Data(); }

    const char *GetCurrentFileName() const { return fxCurrentFile.Data(); }

    /** interface from eventsource base class to give active file*/
    const char *GetActiveName() const override;

    /** string to indicate that no lmd tagfile is chosen */
    static const char *fgcNOTAGFILE;

    /** standard suffix for listmode data files */
    static const char *fgcLMDSUF;

    /** standard suffix for list of listmode files */
    static const char *fgcFILELISTSUF;

  private:

    void AddFileName(const char *name, const char *tagname = nullptr, bool isonly = kFALSE);

    /** For multiple input mode: Open next file in list. */
    Int_t NextFile();

    /** Open current file/tagfile. */
    Int_t OpenFile();

    /** Close current file/tagfile. */
    Int_t CloseFile();

    /** Called whenever new file is opened in multiple mode.
      * For ctor, argument dosave should be false
      * (no autosave possible inside InitEventClasses()) */
    Int_t NewFileAction(Bool_t dosave = kTRUE);

    /** Name of the tagfile associated with the listmode event file. */
    TString fxTagFile;

    /** Currently processed file (for multiple input mode) */
    TString fxCurrentFile;

    /** Currently processed tagfile (for multiple input mode) */
    TString fxCurrentTag;

    /** file that contains the list of mbs filenames.
      * format should be: "filename.lmd tagfilename" for each line. */
    TList *fxMultiFile{nullptr}; //!

    /** This indicates if the current file is open or not */
    Bool_t fbFileOpen{kFALSE};

    /** Indicates if mbs file should show information about new open file */
    Bool_t fbShowInfo{kFALSE}; //!

  ClassDefOverride(TGo4MbsFile, 3)
};

#endif //TGO4MBSFILE_H