/* This file is part of Clementine.
   Copyright 2010, David Sansome <me@davidsansome.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 PLAYLISTLISTCONTAINER_H
#define PLAYLISTLISTCONTAINER_H

#include "playlistbackend.h"

#include <QWidget>

class QMenu;
class QSortFilterProxyModel;
class QStandardItemModel;

class Application;
class Playlist;
class PlaylistListModel;
class Ui_PlaylistListContainer;

class PlaylistListContainer : public QWidget {
  Q_OBJECT

public:
  PlaylistListContainer(QWidget* parent = 0);
  ~PlaylistListContainer();

  void SetApplication(Application* app);
  void SetActions(QAction* new_playlist, QAction* load_playlist,
                  QAction* save_playlist);

protected:
  void showEvent(QShowEvent* e);
  void contextMenuEvent(QContextMenuEvent* e);

private slots:
  // From the UI
  void NewFolderClicked();
  void DeleteClicked();
  void ViewIndexSelected(const QModelIndex& index);

  // From the model
  void PlaylistPathChanged(int id, const QString& new_path);

  // From the PlaylistManager
  void PlaylistAdded(int id, const QString& name);
  void PlaylistRenamed(int id, const QString& new_name);
  void PlaylistDeleted(int id);
  void CurrentChanged(Playlist* new_playlist);
  void ActiveChanged(Playlist* new_playlist);

  // From the Player
  void ActivePlaying();
  void ActivePaused();
  void ActiveStopped();

private:
  QStandardItem* ItemForPlaylist(const QString& name, int id);
  QStandardItem* ItemForFolder(const QString& name) const;
  void RecursivelySetIcons(QStandardItem* parent) const;

  void RecursivelyFindPlaylists(const QModelIndex& parent, QSet<int>* ids) const;

  void UpdateActiveIcon(int id, const QIcon& icon);

private:
  Application* app_;
  Ui_PlaylistListContainer* ui_;
  QMenu* menu_;

  QAction* action_new_folder_;
  QAction* action_new_playlist_;
  QAction* action_remove_;
  QAction* action_load_playlist_;
  QAction* action_save_playlist_;

  PlaylistListModel* model_;
  QSortFilterProxyModel* proxy_;

  bool loaded_icons_;
  QIcon padded_play_icon_;

  int active_playlist_id_;
};

#endif // PLAYLISTLISTCONTAINER_H