// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2011 ISIS Rutherford Appleton Laboratory UKRI,
//     NScD Oak Ridge National Laboratory, European Spallation Source
//     & Institut Laue - Langevin
// SPDX - License - Identifier: GPL - 3.0 +
#ifndef MANTID_ISISREFLECTOMETRY_MAINWINDOWPRESENTER_H
#define MANTID_ISISREFLECTOMETRY_MAINWINDOWPRESENTER_H

#include "Common/DllConfig.h"
#include "GUI/Batch/IBatchPresenter.h"
#include "IMainWindowPresenter.h"
#include "IMainWindowView.h"
#include "MantidGeometry/Instrument.h"
#include <memory>

namespace MantidQt {
namespace CustomInterfaces {
namespace ISISReflectometry {

class IBatchPresenterFactory;
class IMainWindowView;
class IMessageHandler;

/** @class MainWindowPresenter

MainWindowPresenter is the concrete main window presenter implementing the
functionality defined by the interface IMainWindowPresenter.
*/
class MANTIDQT_ISISREFLECTOMETRY_DLL MainWindowPresenter
    : public MainWindowSubscriber,
      public IMainWindowPresenter {
public:
  /// Constructor
  MainWindowPresenter(
      IMainWindowView *view, IMessageHandler *messageHandler,
      std::unique_ptr<IBatchPresenterFactory> batchPresenterFactory);
  ~MainWindowPresenter();
  MainWindowPresenter(MainWindowPresenter const &) = delete;
  MainWindowPresenter(MainWindowPresenter &&);
  MainWindowPresenter &operator=(MainWindowPresenter const &) = delete;
  MainWindowPresenter &operator=(MainWindowPresenter &&);

  // IMainWindowPresenter overrides
  bool isAnyBatchProcessing() const override;
  bool isAnyBatchAutoreducing() const override;
  void notifyAutoreductionResumed() override;
  void notifyAutoreductionPaused() override;
  void reductionResumed() override;
  void reductionPaused() override;
  void
  notifyInstrumentChangedRequested(std::string const &instrumentName) override;
  void notifyUpdateInstrumentRequested() override;
  Mantid::Geometry::Instrument_const_sptr instrument() const override;
  std::string instrumentName() const override;

  // MainWindowSubscriber overrides
  void notifyHelpPressed() override;
  void notifyNewBatchRequested() override;
  void notifyCloseBatchRequested(int batchIndex) override;
  void notifySaveBatchRequested(int batchIndex) override;
  void notifyLoadBatchRequested(int batchIndex) override;

protected:
  IMainWindowView *m_view;
  IMessageHandler *m_messageHandler;
  std::vector<std::unique_ptr<IBatchPresenter>> m_batchPresenters;
  std::unique_ptr<IBatchPresenterFactory> m_batchPresenterFactory;

private:
  Mantid::Geometry::Instrument_const_sptr m_instrument;

  void showHelp();
  void addNewBatch(IBatchView *batchView);
  void initNewBatch(IBatchPresenter *batchPresenter,
                    std::string const &instrument);
  void changeInstrument(std::string const &instrumentName);
  void updateInstrument(const std::string &instrumentName);

  void disableSaveAndLoadBatch();
  void enableSaveAndLoadBatch();

  friend class Encoder;
  friend class Decoder;
  friend class CoderCommonTester;
};
} // namespace ISISReflectometry
} // namespace CustomInterfaces
} // namespace MantidQt
#endif /* MANTID_ISISREFLECTOMETRY_MAINWINDOWPRESENTER_H */