#pragma once

#ifndef FILEBROWSERPOPUP_H
#define FILEBROWSERPOPUP_H

// TnzCore includes
#include "tfilepath.h"
#include "tpixel.h"

// TnzQt includes
#include "toonzqt/dvdialog.h"
#include "toonzqt/filefield.h"
#include "toonzqt/lineedit.h"
#include "toonzqt/checkbox.h"
#include "toonzqt/doublefield.h"

// Tnz6 includes
#include "cellselection.h"

//========================================================

//    Forward declaration

class FileBrowser;
class TDoubleParam;
class TCamera;
class TPropertyGroup;
class QShowEvent;
class QFrame;
class QPushButton;
class QComboBox;
class QGroupBox;
class QCheckBox;

namespace DVGui {
class ColorField;
}

//========================================================

//********************************************************************************
//    FileBrowserPopup  declaration
//********************************************************************************

class FileBrowserPopup : public QDialog {
  Q_OBJECT

public:
  enum Options  //! Various options used to customize the popup's behavior.
  { STANDARD      = 0x0,  //!< Standard options.
    CUSTOM_LAYOUT = 0x1,  //!< Prevents standard layout organization at
                          //! construction, surrendering it
    //!  to the user. Observe that sub-widgets creation is still enforced.
    MULTISELECTION = 0x2,  //!< Enable multiple selection in the browser widget.
    WITH_APPLY_BUTTON = 0x4  //!< Enable if the filebrowser has an apply button
                             //! next to the OK button
  };

public:
  FileBrowserPopup(const QString &windowTitle, Options options = STANDARD,
                   QString applyButtonTxt = "", QWidget *customWidget = 0);
  virtual ~FileBrowserPopup() {}

  void setOkText(const QString &text);
  void setFilterTypes(const QStringList &typesList);
  void removeFilterType(const QString &type);
  void addFilterType(const QString &type);
  void setFileMode(bool isDirectoryOnly);
  void setFolder(const TFilePath &folderPath);
  void setFilename(const TFilePath &filename);

  virtual void initFolder() {}

signals:

  void filePathClicked(const TFilePath &);

public slots:

  void onOkPressed();
  void onApplyPressed();

protected:
  std::set<TFilePath> m_selectedPaths;  //!< Paths in the active selection.
  TFilePath m_currentProjectPath;       //!< Path of current project.
  //!  \deprecated  Should not be cached...
  // keep TFrameId list in order to speed up the loading of sequencial files
  std::list<std::vector<TFrameId>> m_currentFIdsSet;
  FileBrowser *m_browser;

  QLabel *m_nameFieldLabel;
  DVGui::LineEdit *m_nameField;

  // QLabel*               m_fromFrameLabel;
  // LineEdit*	            m_fromFrame;
  // QLabel*               m_toFrameLabel;
  // LineEdit*             m_toFrame;

  QPushButton *m_okButton, *m_cancelButton;

  bool m_isDirectoryOnly;
  // bool                  m_checkFrameRange;
  bool m_multiSelectionEnabled;

  QSize m_dialogSize;
  QWidget *m_customWidget;

  TFilePath getCurrentPath() {
    if (m_selectedPaths.empty())
      return TFilePath();
    else
      return *m_selectedPaths.begin();
  }
  std::set<TFilePath> getCurrentPathSet() { return m_selectedPaths; }

  std::vector<TFrameId> getCurrentFIds() {
    std::vector<TFrameId> tmp;

    if (m_currentFIdsSet.empty())
      return tmp;
    else
      return *m_currentFIdsSet.begin();
  }
  std::list<std::vector<TFrameId>> getCurrentFIdsSet() {
    return m_currentFIdsSet;
  }

protected:
  /*!
Performs some action on m_paths and returns whether the action was
successful (accepted) - in which case the popup closes.
*/
  virtual bool execute() = 0;

  // change the "Apply" button for the browser in flipbook to "Append"
  virtual bool executeApply() { return execute(); }

  void showEvent(QShowEvent *) override;
  void hideEvent(QHideEvent *) override;

protected slots:

  void onFilePathClicked(const TFilePath &);
  virtual void onFilePathsSelected(
      const std::set<TFilePath> &paths,
      const std::list<std::vector<TFrameId>> &fIds);

  // utility function
public:
  static void setModalBrowserToParent(QWidget *widget);
};

//********************************************************************************
//    FileBrowserPopup Heirs  declarations
//********************************************************************************

//! The GenericLoadFilePopup is a simple, standard Toonz popup that
//! asks the user for \a single file to be loaded from disk.
class GenericLoadFilePopup final : public FileBrowserPopup {
public:
  GenericLoadFilePopup(const QString &title);

  /*!
This function shows the popup and blocks until an \a existing
file has been selected - if the returned path is empty, the action
was explicitly aborted by the user.
*/
  TFilePath getPath();

protected:
  bool execute() override;
};

//-----------------------------------------------------------------------------

//! The GenericSaveFilePopup is a simple, standard Toonz popup that
//! asks the user for a \a single file path to save something to.
class GenericSaveFilePopup final : public FileBrowserPopup {
public:
  GenericSaveFilePopup(const QString &title);

  /*!
This function shows the popup and blocks until a suitable
path has been selected - if the returned path is empty, the
action was explicitly aborted by the user.

\note The popup \a does ask for user consent to overwrite existing
    files.
*/
  TFilePath getPath();

protected:
  bool execute() override;
};

//-----------------------------------------------------------------------------

class LoadScenePopup final : public FileBrowserPopup {
  Q_OBJECT

public:
  LoadScenePopup();

  bool execute() override;
  void initFolder() override;

  // change the initial path according to the current room
  void setInitialFolderByCurrentRoom();

protected:
  void showEvent(QShowEvent *) override;
};

//-----------------------------------------------------------------------------

class LoadSubScenePopup final : public FileBrowserPopup {
  Q_OBJECT

public:
  LoadSubScenePopup();

  bool execute() override;
  void initFolder() override;

protected:
  void showEvent(QShowEvent *) override;
};

//-----------------------------------------------------------------------------

class SaveSceneAsPopup final : public FileBrowserPopup {
  Q_OBJECT

public:
  SaveSceneAsPopup();

  bool execute() override;
  void initFolder() override;
};

//-----------------------------------------------------------------------------

class SaveSubSceneAsPopup final : public FileBrowserPopup {
  Q_OBJECT

public:
  SaveSubSceneAsPopup();

  bool execute() override;
  void initFolder() override;
};

//-----------------------------------------------------------------------------

class LoadLevelPopup final : public FileBrowserPopup {
  Q_OBJECT

  QFrame *m_subsequenceFrame;
  DVGui::LineEdit *m_fromFrame;
  DVGui::LineEdit *m_toFrame;

  QFrame *m_arrangementFrame;
  DVGui::LineEdit *m_xFrom;
  DVGui::LineEdit *m_xTo;
  QComboBox *m_stepCombo;
  QComboBox *m_incCombo;
  DVGui::LineEdit *m_levelName;
  DVGui::LineEdit *m_posFrom;
  DVGui::LineEdit *m_posTo;

  QLabel *m_notExistLabel;
  QComboBox *m_loadTlvBehaviorComboBox;

public:
  LoadLevelPopup();

  bool execute() override;
  void initFolder() override;

protected:
  // reflect the current frame to GUI
  void showEvent(QShowEvent *) override;
  void hideEvent(QHideEvent *) override;

public slots:
  void onFilePathsSelected(
      const std::set<TFilePath> &paths,
      const std::list<std::vector<TFrameId>> &fIds) override;
  // if the frame switched, then move m_posFrom
  void onFrameSwitched();
  // if the from/to values in the subsequent box are changed, then reflect them
  // to m_xFrom/m_xTo
  void onSubsequentFrameChanged();
  // update m_posTo
  void updatePosTo();
  // called when the file name is typed directly
  void onNameSetEditted(void);
  // if the x-sheet cells are selected, load levels at the upper-left corner of
  // the selection
  void onSelectionChanged(TSelection *selection);

private:
  // update the fields acording to the current Path
  void updateBottomGUI(void);
  // if some option in the preferences is selected, load the level with removing
  // six letters of the scene name from the level name
  QString getLevelNameWithoutSceneNumber(std::string orgName);
};

//-----------------------------------------------------------------------------

class SaveLevelAsPopup final : public FileBrowserPopup {
  Q_OBJECT

public:
  SaveLevelAsPopup();

  bool execute() override;
  void initFolder() override;
};

//-----------------------------------------------------------------------------

class ReplaceLevelPopup final : public FileBrowserPopup {
  Q_OBJECT

  TCellSelection::Range m_range;
  bool m_replaceCells;  // true : cell selection, false : column selection
  std::set<int> m_columnRange;

public:
  ReplaceLevelPopup();

  bool execute() override;
  void show();

  void initFolder() override;

protected slots:
  void onSelectionChanged(TSelection *selection);
};

//-----------------------------------------------------------------------------

class SavePaletteAsPopup final : public FileBrowserPopup {
  Q_OBJECT

public:
  SavePaletteAsPopup();

  bool execute() override;
  void initFolder() override;
};

//-----------------------------------------------------------------------------

class LoadColorModelPopup final : public FileBrowserPopup {
  Q_OBJECT

  DVGui::LineEdit *m_paletteFrame;

public:
  LoadColorModelPopup();

  bool execute() override;

protected:
  void showEvent(QShowEvent *) override;

protected slots:

  void onFilePathsSelected(const std::set<TFilePath> &paths);
};

//-----------------------------------------------------------------------------

class ImportMagpieFilePopup final : public FileBrowserPopup {
  Q_OBJECT

public:
  ImportMagpieFilePopup();

  bool execute() override;
  void initFolder() override;

protected:
  void showEvent(QShowEvent *) override;
};

//-----------------------------------------------------------------------------
/*! replace the parent folder path of the levels in the selected cells
*/

class ReplaceParentDirectoryPopup final : public FileBrowserPopup {
  TCellSelection::Range m_range;
  bool m_replaceCells;  // true : cell selection, false : column selection
  std::set<int> m_columnRange;

public:
  ReplaceParentDirectoryPopup();
  void show();
  bool execute() override;
  void initFolder() override;
};

//-----------------------------------------------------------------------------

class BrowserPopup final : public FileBrowserPopup {
  Q_OBJECT

  TFilePath m_path;

public:
  BrowserPopup();

  const TFilePath &getPath() { return m_path; }

  bool execute() override;
  void initFolder(TFilePath path);
};

//-----------------------------------------------------------------------------

class BrowserPopupController final
    : public QObject,
      public DVGui::FileField::BrowserPopupController {
  Q_OBJECT

  BrowserPopup *m_browserPopup;
  bool m_isExecute;

public:
  BrowserPopupController();

  bool isExecute() override { return m_isExecute; }
  // if parentWidget is non-zero, then check if the any modal dialog is ancestor
  // of it.
  void openPopup(QStringList filters, bool isDirectoryOnly,
                 QString lastSelectedPath,
                 const QWidget *parentWidget = NULL) override;
  QString getPath() override;
};

#endif  // FILEBROWSERPOPUP_H