Prepare multi cluster tag parsing

src/scanner/MediaScanner.hpp

@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2013 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <boost/asio/deadline_timer.hpp>
+
+#include <Wt/WIOService>
+#include <Wt/WSignal>
+
+#include "metadata/TagLibParser.hpp"
+
+#include "database/DatabaseHandler.hpp"
+
+namespace Scanner {
+
+
+class MediaScanner
+{
+	public:
+
+		MediaScanner(Wt::Dbo::SqlConnectionPool& connectionPool);
+
+		void start();
+		void stop();
+		void restart();
+
+		struct Stats
+		{
+			std::size_t	nbNoChange = 0;		// no change since last scan
+			std::size_t	nbScanned = 0;		// total scanned filed
+			std::size_t	nbScanErrors = 0;	// cannot scan file
+			std::size_t	nbNotImported = 0;	// Scanned, but not imported (criteria not filled)
+			std::size_t	nbAdded = 0;		// Added in DB
+			std::size_t	nbRemoved = 0;		// removed from DB
+			std::size_t	nbUpdated = 0;		// updated file in DB
+
+			std::size_t nbChanges() const { return nbAdded + nbRemoved + nbUpdated;}
+		};
+
+
+		// Called just after track addition
+		Wt::Signal<Database::Track::pointer>& addedTrack() { return _sigAddedTrack; }
+
+		// Called just before track removal
+		Wt::Signal<Database::Track::pointer>& removedTrack() { return _sigRemovedTrack; }
+
+		// Called just after track modification
+		Wt::Signal<Database::Track::pointer>& modifiedTrack() { return _sigModifiedTrack; }
+
+		// Called just after scan complete
+		Wt::Signal<Stats>& scanComplete() { return _sigScanComplete; }
+
+	private:
+
+		// Job handling
+		void processNextJob();
+		void scheduleScan(boost::posix_time::time_duration duration);
+		void scheduleScan(boost::posix_time::ptime time);
+
+		// Update database (scheduled callback)
+		void process(boost::system::error_code ec);
+
+		void processRootDirectory( boost::filesystem::path rootDirectory, Stats& stats);
+
+		// Helpers
+		Database::Artist::pointer getArtist( const boost::filesystem::path& file, const std::string& name, const std::string& MBID);
+		Database::Release::pointer getRelease( const boost::filesystem::path& file, const std::string& name, const std::string& MBID);
+		std::vector<Database::Cluster::pointer> getClusters( const MetaData::Clusters& names);
+		void refreshScanSettings();
+
+		// Audio
+		void checkAudioFiles( Stats& stats );
+		void checkDuplicatedAudioFiles( Stats& stats );
+		void processAudioFile( const boost::filesystem::path& file, Stats& stats);
+
+		// Video
+		void checkVideoFiles( Stats& stats );
+		void processVideoFile( const boost::filesystem::path& file, Stats& stats);
+
+		bool			_running;
+		Wt::WIOService		_ioService;
+
+		Wt::Signal<Stats>	_sigScanComplete;
+		Wt::Signal<Database::Track::pointer> _sigModifiedTrack;
+		Wt::Signal<Database::Track::pointer> _sigAddedTrack;
+		Wt::Signal<Database::Track::pointer> _sigRemovedTrack;
+
+		boost::asio::deadline_timer _scheduleTimer;
+
+		Database::Handler	_db;
+
+		// Scan settings
+		std::vector<boost::filesystem::path>	_fileExtensions;
+		std::vector<boost::filesystem::path>	_rootDirectories;
+
+		MetaData::TagLibParser 	_metadataParser;
+
+}; // class MediaScanner
+
+} // Scanner
+