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#pragma once
#include <QObject>
#include <QSqlDatabase>
#include "library/crate/crateid.h"
#include "preferences/usersettings.h"
#include "track/track_decl.h"
#include "track/trackid.h"
#include "util/class.h"
class TrackCollection;
class AutoDJCratesDAO : public QObject {
Q_OBJECT
public:
AutoDJCratesDAO(
int iAutoDjPlaylistId,
TrackCollection* pTrackCollection,
UserSettingsPointer a_pConfig);
~AutoDJCratesDAO() override;
// Get the ID of a random track.
TrackId getRandomTrackId();
// Get random track Id from library
TrackId getRandomTrackIdFromLibrary(int iPlaylistId);
private:
// Disallow copy and assign.
// (Isn't that normal for QObject subclasses?)
DISALLOW_COPY_AND_ASSIGN(AutoDJCratesDAO);
// Create the temporary auto-DJ-crates database.
// Done the first time it's used, since the user might not even make
// use of this feature.
void createAndConnectAutoDjCratesDatabase();
// Create the active-tracks view.
bool createActiveTracksView(bool a_bUseIgnoreTime);
// Update the number of auto-DJ-playlist references to each track in the
// auto-DJ-crates database. Returns true if successful.
bool updateAutoDjPlaylistReferences();
// Update the number of auto-DJ-playlist references to the given track
// in the auto-DJ-crates database. Returns true if successful.
bool updateAutoDjPlaylistReferencesForTrack(TrackId trackId);
// Update the last-played date/time for each track in the
// auto-DJ-crates database. Returns true if successful.
bool updateLastPlayedDateTime();
// Update the last-played date/time for the given track in the
// auto-DJ-crates database. Returns true if successful.
bool updateLastPlayedDateTimeForTrack(TrackId trackId);
// Calculates a random Track from AutoDJ,
// This is used when all active tracks are already queued up.
TrackId getRandomTrackIdFromAutoDj(int percentActive);
private slots:
// Signaled by the track DAO when a track's information is updated.
void slotTrackDirty(TrackId trackId);
// Signaled by the crate DAO when a crate is added.
void slotCrateInserted(CrateId crateId);
// Signaled by the crate DAO when a crate is updated.
void slotCrateUpdated(CrateId crateId);
// Signaled by the crate DAO when a crate is deleted.
void slotCrateDeleted(CrateId crateId);
// Signaled by the crate DAO when crate tracks are added/removed.
void slotCrateTracksChanged(CrateId crateId, const QList<TrackId>& addedTrackIds, const QList<TrackId>& removedTrackIds);
// Signaled by the playlist DAO when a playlist is added.
void slotPlaylistAdded(int playlistId);
// Signaled by the playlist DAO when a playlist is deleted.
void slotPlaylistDeleted(int playlistId);
// Signaled by the playlist DAO when a track is added to a playlist.
void slotPlaylistTrackAdded(int playlistId, TrackId trackId,
int position);
// Signaled by the playlist DAO when a track is removed from a playlist.
void slotPlaylistTrackRemoved(int playlistId, TrackId trackId,
int position);
// Signaled by the PlayerInfo singleton when a track is loaded to, or
// unloaded from, a deck.
void slotPlayerInfoTrackLoaded(QString group, TrackPointer pTrack);
void slotPlayerInfoTrackUnloaded(QString group, TrackPointer pTrack);
private:
void updateAutoDjCrate(CrateId crateId);
void deleteAutoDjCrate(CrateId crateId);
// The auto-DJ playlist's ID.
const int m_iAutoDjPlaylistId;
TrackCollection* m_pTrackCollection;
// The SQL database we interact with.
QSqlDatabase m_database;
// The source of our configuration.
UserSettingsPointer m_pConfig;
// True if the auto-DJ-crates database has been created.
bool m_bAutoDjCratesDbCreated;
// True if active tracks can be tracks that haven't been played in
// a while.
bool m_bUseIgnoreTime;
// The ID of every set-log playlist.
QList<int> m_lstSetLogPlaylistIds;
};
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