/**
  * @RDE_HEADER@
  * LtsFileDialogWidget and LtsFileDialog - custom widgets
  * $Id$
  * $HeadURL$
  * $Author$
  *
  * Created by Iuliana Ojog & Mike Wille, SLSE, 2017-09-15
  */

#pragma once

#include "lts_file_dialog.h"

#include <LtsFileDialog/ltsfiledialog_export.h>
#include <Plugins/FileManagement/flm_data_plugin_interface.h>
#include <Plugins/OperatorManagement/opm_data_plugin_interface.h>
#include <Plugins/ExerciseManagement/exm_data_plugin_interface.h>

#include <QWidget>

namespace LtsWidgets
{
class DialogModelFile;
class DialogModelFolder;
class DialogModelProxyFolder;
class DialogFileProxyModel;

class LTSFILEDIALOG_EXPORT LtsFileDialogWidget : public QWidget
{
  friend class LtsFileDialog;
  Q_OBJECT

public:
  explicit LtsFileDialogWidget(QWidget *parent = nullptr);
  ~LtsFileDialogWidget();

  bool init(LtsSession::LtsSession *session,
            const std::shared_ptr<FileManagement::Interface::Dtc> &dtc,
            const std::shared_ptr<OperatorManagement::Interface::Dtc> &opmDtc,
            const std::shared_ptr<ExerciseManagement::Interface::Dtc> &exmDtc,
            const FileDialogMode &dlgMode = FileDialogMode::modeOpenFile,
            const QVector<FileManagement::MainFolder> &mainFolders = {},
            const QVector<FileManagement::FileType> &fileTypes = {FileManagement::FileType::Unknown},
            const int &folderId = 0,
            const QString &xmlType = QString());

  void requestReadingSelectedFile();
  QString dragMimeType() const;

signals:
  void enableButtons();
  void accepted();
  void readSelectedFile(int fileId);

private:
  void enaDisa();
  void saveFileName(const QString &name);

  QModelIndex selectedIndexViewFolder();
  void selectFolder();

protected slots:
  // folders
  void onFolderSelectionChanged(const QItemSelection & /*selected*/,
                                const QItemSelection& /*deselected*/);
  void onFolderChanged(const FileManagement::Folder &data, DataModification modType);

  // files
  FileManagement::FileContent onSelectFile();
  void onChooseFileName();
  void onFileChanged(const FileManagement::FileContent &data, DataModification modType);
  bool showFile(const FileManagement::FileContent &fc, const QString &xmlType);

private:
  DialogModelFolder      *m_modelFolder{nullptr};
  DialogModelProxyFolder *m_proxyModelFolder{nullptr};
  DialogModelFile        *m_modelFile{nullptr};
  DialogFileProxyModel   *m_proxyModelFile{nullptr};
  std::shared_ptr<FileManagement::Interface::Dtc> m_dtc;
  std::shared_ptr<OperatorManagement::Interface::Dtc> m_opmDtc;
  std::shared_ptr<ExerciseManagement::Interface::Dtc> m_exmDtc;

  Ui::LtsFileDialogWidget         *m_ui{nullptr};
  LtsSession::LtsSession          *m_session{nullptr};

  int                             m_selectedFolderId{-1};
  FileManagement::FileContent     m_selectedFileContent;

  QString                           m_fileName;
  QVector<FileManagement::FileType> m_fileTypes;
  QString                           m_xmlType;
  FileDialogMode                    m_dialogMode;
  QVector<FileManagement::MainFolder> m_mainFolders;
};

} // namespace LtsWidgets