/**
 * @file FileFinder/GUI/gui.h
 * @brief GUI for the FileFinder application
 * @author Enar Vaikene
 *
 * Copyright (c) 2011-2019 Enar Vaikene
 *
 * This file is part of the eVaf C++ cross-platform application development framework.
 *
 * This file can be used under the terms of the GNU General Public License
 * version 3.0 as published by the Free Software Foundation and appearing in
 * the file LICENSE included in the packaging of this file. Please review the
 * the following information to ensure the GNU General Public License version
 * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
 *
 * Alternatively, this file may be used in accordance with the Commercial License
 * Agreement provided with the Software.
 */

#ifndef __FILEFINDER_GUI_GUI_H
#  define __FILEFINDER_GUI_GUI_H

#include "version.h"

#include <Plugins/iPlugin>
#include <Gui/Panel>

#include <QObject>
#include <QString>
#include <QModelIndex>
#include <QWidget>

class QWidget;
class QCheckBox;
class QComboBox;
class QPushButton;
class QListWidget;
class QAction;
class QFileSystemModel;

namespace eVaf {
namespace SdiWindow {
    struct iSdiWindow;    
} // namespace eVaf::SdiWindow
namespace FileFinder {
    class iFileFinder;
namespace GUI {

namespace Internal {

/**
 * Main widget for the FileFinder window
 */
class MainWidget : public Gui::Panel
{
    Q_OBJECT

public:

    MainWidget(QWidget * parent = nullptr)
        : Gui::Panel(parent)
    {}

    virtual void keyPressEvent(QKeyEvent * e);


signals:

    /**
     * Request to close the windows/application
     */
    void quit();

};
    
} // namespace eVaf::FileFinder::GUI::Internal

/**
 * Graphical User Interface for the FileFinder application.
 *
 * This module adds a GUI window to the FileFinder application using the SdiWindow module.
 */
class Module : public Plugins::iPlugin
{
    Q_OBJECT
    Q_INTERFACES(eVaf::Plugins::iPlugin)
    Q_PLUGIN_METADATA(IID VER_MODULE_NAME_STR)

public:

    Module();

    virtual ~Module();

    virtual bool init(QString const & args);

    virtual void done();

    virtual bool isReady() const { return mReady; }


private slots:

    void browseDirectory();

    void find();

    void found(QString const & file, QString const & dir);

    void finished(bool);

    void currentRowChanged(int currentRow);

    void openFile(QModelIndex const & index = QModelIndex());

    void openDirectory();

    void copyName();

    void copyAllNames();


private: // Members

    /// Max number of items in each field that we save
    static int const MaxHistoryItems;

    /// Flag indicating that the module is ready
    bool mReady;

    /// The iFileFinder interface
    eVaf::FileFinder::iFileFinder * mFinder;

    /// Actions
    QAction * mOpenFileAction;
    QAction * mOpenDirectoryAction;
    QAction * mCopyNameAction;
    QAction * mCopyAllNamesAction;

    /// Widgets on the screen
    Internal::MainWidget * wMain;
    QComboBox * wDirectory;
    QPushButton * wBrowse;
    QCheckBox * wRecursive;
    QComboBox * wIncludeNames;
    QComboBox * wExcludeNames;
    QComboBox * wIncludeContent;
    QComboBox * wExcludeContent;
    QListWidget * wResults;
    QPushButton * wFind;

    /// File system auto-completion model for the directory field
    QFileSystemModel * mDirModel;


private: // Methods

    void createWidgets();

    void createActions();

    void saveHistory();

    void loadHistory();

};
    
} // namespace eVaf::FileFinder::GUI
} // namespace eVaf::FileFinder
} // namespace eVaf

#endif // gui.h