/* 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 PLAYLISTCONTAINER_H
#define PLAYLISTCONTAINER_H

#include <QSettings>
#include <QWidget>

class Ui_PlaylistContainer;

class Application;
class LineEditInterface;
class Playlist;
class PlaylistManager;
class PlaylistView;

class QTimeLine;
class QTimer;
class QLabel;

class PlaylistContainer : public QWidget {
  Q_OBJECT

 public:
  PlaylistContainer(QWidget* parent = nullptr);
  ~PlaylistContainer();

  static const char* kSettingsGroup;

  void SetApplication(Application* app);
  void SetActions(QAction* new_playlist, QAction* load_playlist,
                  QAction* save_playlist, QAction* next_playlist,
                  QAction* previous_playlist);
  void SetManager(PlaylistManager* manager);

  PlaylistView* view() const;

  bool eventFilter(QObject* objectWatched, QEvent* event);

 signals:
  void TabChanged(int id);
  void Rename(int id, const QString& new_name);

  void UndoRedoActionsChanged(QAction* undo, QAction* redo);
  void ViewSelectionModelChanged();

 protected:
  // QWidget
  void resizeEvent(QResizeEvent*);

 public slots:
  void ReloadSettings();

 private slots:
  void NewPlaylist();
  void LoadPlaylist();
  void SavePlaylist() { SavePlaylist(-1); }
  void SavePlaylist(int id);
  void GoToNextPlaylistTab();
  void GoToPreviousPlaylistTab();

  void SetViewModel(Playlist* playlist);
  void PlaylistAdded(int id, const QString& name, bool favorite);
  void PlaylistClosed(int id);
  void PlaylistRenamed(int id, const QString& new_name);

  void Started();

  void ActivePlaying();
  void ActivePaused();
  void ActiveStopped();

  void DirtyTabBar();
  void Save(QSettings* settings_);

  void SetTabBarVisible(bool visible);
  void SetTabBarHeight(int height);

  void SelectionChanged();
  void MaybeUpdateFilter();
  void UpdateFilter();
  void FocusOnFilter(QKeyEvent* event);

  void UpdateNoMatchesLabel();

 private:
  void UpdateActiveIcon(const QIcon& icon);
  void RepositionNoMatchesLabel(bool force = false);

 private:
  static const int kFilterDelayMs;
  static const int kFilterDelayPlaylistSizeThreshold;

  Application* app_;
  Ui_PlaylistContainer* ui_;

  PlaylistManager* manager_;
  QAction* undo_;
  QAction* redo_;
  Playlist* playlist_;

  QSettings settings_;
  bool starting_up_;

  bool tab_bar_visible_;
  QTimeLine* tab_bar_animation_;

  QLabel* no_matches_label_;

  QTimer* filter_timer_;

  bool dirty_;
};

#endif  // PLAYLISTCONTAINER_H