/* === This file is part of Calamares - <https://github.com/calamares> ===
 *
 *   Copyright 2019-2020, Adriaan de Groot <groot@kde.org>
 *
 *   Calamares is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   Calamares is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef KEYBOARD_CONFIG_H
#define KEYBOARD_CONFIG_H

#include <QObject>
#include <QUrl>
#include <QTimer>
#include <QMap>
#include "Job.h"
#include <QAbstractListModel>
#include "KeyboardLayoutModel.h"

class KeyboardModelsModel : public QAbstractListModel
{
    Q_OBJECT
    Q_PROPERTY(int currentIndex WRITE setCurrentIndex READ currentIndex NOTIFY currentIndexChanged)

public:
    explicit KeyboardModelsModel(QObject *parent = nullptr);
    int rowCount(const QModelIndex& = QModelIndex()) const override;
    QVariant data(const QModelIndex& index, int role) const override;

    void setCurrentIndex(const int &index);
    int currentIndex() const;
    const QMap<QString, QString> item(const int &index) const;

public slots:
    void refresh();

protected:
    QHash<int, QByteArray> roleNames() const override;

private:
    int m_currentIndex =-1;
    QVector<QMap<QString, QString>> m_list;
    void detectModels();

signals:
    void currentIndexChanged(int index);
};

class KeyboardVariantsModel : public QAbstractListModel
{
    Q_OBJECT
    Q_PROPERTY(int currentIndex WRITE setCurrentIndex READ currentIndex NOTIFY currentIndexChanged)

public:
    explicit KeyboardVariantsModel(QObject *parent = nullptr);
    void setVariants(QMap< QString, QString > variants);

    int rowCount(const QModelIndex& = QModelIndex()) const override;
    QVariant data(const QModelIndex& index, int role) const override;

    void setCurrentIndex(const int &index);
    int currentIndex() const;

    const QMap<QString, QString> item(const int &index) const;

protected:
    QHash<int, QByteArray> roleNames() const override;

private:
    int m_currentIndex =-1;
    QVector<QMap<QString, QString>> m_list;

signals:
    void currentIndexChanged(int index);
};

class Config : public QObject
{
    Q_OBJECT
    Q_PROPERTY(KeyboardModelsModel * keyboardModelsModel READ keyboardModels CONSTANT FINAL)
    Q_PROPERTY(KeyboardLayoutModel * keyboardLayoutsModel READ keyboardLayouts CONSTANT FINAL)
    Q_PROPERTY(KeyboardVariantsModel * keyboardVariantsModel READ keyboardVariants CONSTANT FINAL)
    Q_PROPERTY(QString prettyStatus READ prettyStatus NOTIFY prettyStatusChanged FINAL)

public:
    Config( QObject* parent = nullptr );

    void init();

    Calamares::JobList createJobs( const QString& xOrgConfFileName,
                                   const QString& convertedKeymapPath,
                                   bool writeEtcDefaultKeyboard );
    QString prettyStatus() const;

    void onActivate();
    void finalize();

private:
    void guessLayout( const QStringList& langParts );
    void updateVariants( const QPersistentModelIndex& currentItem,
                         QString currentVariant = QString() );

    KeyboardModelsModel *m_keyboardModelsModel;
    KeyboardLayoutModel *m_keyboardLayoutsModel;
    KeyboardVariantsModel *m_keyboardVariantsModel;

    QString m_selectedLayout;
    QString m_selectedModel;
    QString m_selectedVariant;
    QTimer m_setxkbmapTimer;

protected:
    KeyboardModelsModel * keyboardModels() const;
    KeyboardLayoutModel * keyboardLayouts() const;
    KeyboardVariantsModel * keyboardVariants() const;


signals:
    void prettyStatusChanged();
};


#endif