/*
 * Strawberry Music Player
 * This file was part of Clementine.
 * Copyright 2010, David Sansome <me@davidsansome.com>
 * Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
 *
 * Strawberry 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.
 *
 * Strawberry 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 Strawberry.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef SETTINGSPROVIDER_H
#define SETTINGSPROVIDER_H

#include "config.h"

#include <QVariant>
#include <QString>
#include <QSettings>

class SettingsProvider {
 public:
  explicit SettingsProvider();
  virtual ~SettingsProvider() {}

  virtual void set_group(const char *group) = 0;

  virtual QVariant value(const QString &key, const QVariant &default_value = QVariant()) const = 0;
  virtual void setValue(const QString &key, const QVariant &value) = 0;
  virtual int beginReadArray(const QString &prefix) = 0;
  virtual void beginWriteArray(const QString &prefix, int size = -1) = 0;
  virtual void setArrayIndex(int i) = 0;
  virtual void endArray() = 0;

 private:
  Q_DISABLE_COPY(SettingsProvider)
};

class DefaultSettingsProvider : public SettingsProvider {
 public:
  DefaultSettingsProvider();

  void set_group(const char *group) override;

  QVariant value(const QString &key, const QVariant &default_value = QVariant()) const override;
  void setValue(const QString &key, const QVariant &value) override;
  int beginReadArray(const QString &prefix) override;
  void beginWriteArray(const QString &prefix, int size = -1) override;
  void setArrayIndex(int i) override;
  void endArray() override;

 private:
  QSettings backend_;

  Q_DISABLE_COPY(DefaultSettingsProvider)
};

#endif  // SETTINGSPROVIDER_H