#ifndef QT_UTILITIES_SETTINGSDIALOG_H
#define QT_UTILITIES_SETTINGSDIALOG_H

#include <c++utilities/application/global.h>

#include <QDialog>

#include <memory>

namespace Dialogs {

class OptionCategoryModel;
class OptionCategoryFilterModel;
class OptionCategory;
class OptionPage;

namespace Ui {
class SettingsDialog;
}

class LIB_EXPORT SettingsDialog : public QDialog
{
    Q_OBJECT
    Q_PROPERTY(bool tabBarAlwaysVisible READ isTabBarAlwaysVisible WRITE setTabBarAlwaysVisible)
    Q_PROPERTY(bool categoriesAlwaysVisible READ areCategoriesAlwaysVisible WRITE setCategoriesAlwaysVisible)
    
public:
    explicit SettingsDialog(QWidget *parent = nullptr);
    ~SettingsDialog();
    bool isTabBarAlwaysVisible() const;
    void setTabBarAlwaysVisible(bool value);
    bool areCategoriesAlwaysVisible() const;
    void setCategoriesAlwaysVisible(bool value);
    OptionCategoryModel *categoryModel();
    OptionCategory *category(int categoryIndex) const;
    OptionPage *page(int categoryIndex, int pageIndex) const;

Q_SIGNALS:
    void applied();
    void resetted();

protected:
    void showEvent(QShowEvent *event);

private Q_SLOTS:
    void currentCategoryChanged(const QModelIndex &index);
    void updateTabWidget();

    bool apply();
    void reset();

private:
    void showCategory(OptionCategory *category);

    std::unique_ptr<Ui::SettingsDialog> m_ui;
    OptionCategoryModel *m_categoryModel;
    OptionCategoryFilterModel *m_categoryFilterModel;
    OptionCategory *m_currentCategory;
    bool m_tabBarAlwaysVisible;
    bool m_categoriesAlwaysVisible;
};

/*!
 * \brief Returns whether the tab bar is always visible.
 *
 * The tab bar is always visible by default.
 *
 * \sa SettingsDialog::setTabBarAlwaysVisible()
 */
inline bool SettingsDialog::isTabBarAlwaysVisible() const
{
    return m_tabBarAlwaysVisible;
}

/*!
 * \brief Returns whether the category selection is always visible.
 *
 * The category selection is always visible by default.
 *
 * \sa SettingsDialog::setCategoriesAlwaysVisible()
 */
inline bool SettingsDialog::areCategoriesAlwaysVisible() const
{
    return m_categoriesAlwaysVisible;
}

/*!
 * \brief Returns the category model used by the settings dialog to manage the categories.
 */
inline OptionCategoryModel *SettingsDialog::categoryModel()
{
    return m_categoryModel;
}

}

#endif // QT_UTILITIES_SETTINGSDIALOG_H