/* This file is part of Clementine.
   Copyright 2010, David Sansome <davidsansome@gmail.com>
   Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
   Copyright 2014, John Maguire <john.maguire@gmail.com>

   Clementine 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.

   Clementine 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 Clementine.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef INTERNET_ICECAST_ICECASTMODEL_H_
#define INTERNET_ICECAST_ICECASTMODEL_H_

#include <QIcon>
#include <memory>

#include "core/simpletreemodel.h"
#include "icecastitem.h"
#include "library/librarymodel.h"

class IcecastBackend;

class IcecastModel : public SimpleTreeModel<IcecastItem> {
  Q_OBJECT

 public:
  explicit IcecastModel(std::shared_ptr<IcecastBackend> backend,
                        QObject* parent = nullptr);
  ~IcecastModel();

  // These values get saved in QSettings - don't change them
  enum SortMode {
    SortMode_GenreByPopularity = 0,
    SortMode_GenreAlphabetical = 1,
    SortMode_StationAlphabetical = 2,
  };

  enum Role {
    Role_IsDivider = LibraryModel::Role_IsDivider,
  };

  Song GetSong(const QModelIndex& index) const;

  // QAbstractItemModel
  QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;
  Qt::ItemFlags flags(const QModelIndex& index) const;
  QStringList mimeTypes() const;
  QMimeData* mimeData(const QModelIndexList& indexes) const;

 public slots:
  void Init();
  void Reset();

  void SetFilterText(const QString& filter);
  void SetSortMode(SortMode mode);

 protected:
  void LazyPopulate(IcecastItem* parent);

 private:
  QVariant data(const IcecastItem* item, int role) const;
  void PopulateGenre(IcecastItem* parent, const QString& genre,
                     bool create_dividers);
  void AddGenres(const QStringList& genres, bool create_dividers);

  static QChar DividerKey(const QString& text);
  static QString DividerDisplayText(const QChar& key);

 private:
  std::shared_ptr<IcecastBackend> backend_;

  QString filter_;
  SortMode sort_mode_;

  QIcon genre_icon_;
  QIcon station_icon_;
};

#endif  // INTERNET_ICECAST_ICECASTMODEL_H_