ocarina/core/tags/track.cpp

/**
 * Copyright 2014 (c) Anna Schumaker.
 */
#include <core/filter.h>
#include <core/string.h>
#include <core/tags/track.h>

#include <glib.h>


static Database<Track> track_db("track.db", false);


Track :: Track()
       : GenericTag(),
	 _album(NULL), _artist(NULL), _genre(NULL), _library(NULL),
	 _count(0), _length(0), _track(0)
{}

Track :: Track(Album *album, Artist *artist, Genre *genre, Library *library,
	       const std::string &filepath, const std::string &name,
	       unsigned int length, unsigned int track)
       : GenericTag(name),
	 _album(album), _artist(artist), _genre(genre), _library(library),
	 _count(0), _length(length), _track(track), _path(filepath)
{
	date_set(&_date, 0, 0, 0);
	filter :: add(this->name(), index());
	filter :: add(_artist->name(), index());
	filter :: add(_album->name(), index());
	_library->inc_size();
}

Track :: Track(const Track &track)
       : GenericTag(track),
	 _album(track._album), _artist(track._artist), _genre(track._genre),
	 _library(track._library), _count(track._count), _length(track._length),
	 _track(track._track), _date(track._date), _path(track._path)
{
	_library->inc_size();
}

Track :: ~Track()
{
	if (_library)
		_library->dec_size();
}

Album   *Track :: album()   { return _album;   }
Artist  *Track :: artist()  { return _artist;  }
Genre   *Track :: genre()   { return _genre;   }
Library *Track :: library() { return _library; }

unsigned int Track :: count()  { return _count;  }
unsigned int Track :: length() { return _length; }
unsigned int Track :: track()  { return _track;  }

const std::string Track :: date() const
{
	char *buf;
	std::string res = "Never";

	if (_count > 0) {
		buf = date_string(&_date);
		res = buf;
		g_free(buf);
	}
	return res;
}

const std::string Track :: path() const
{
	if (_library)
		return _library->primary_key() + "/" + _path;
	return "";
}

const std::string Track :: primary_key() const
{
	std :: string res;

	if (_library) {
		gchar *g_res = g_strdup_printf("%u/%s", _library->index(),
						_path.c_str());
		res = g_res;
		g_free(g_res);
	}

	return res;
}

void Track :: played()
{
	_count++;
	date_today(&_date);
	tags :: commit_track_db();
}

int Track :: compare_date(const Track *rhs)
{
	return date_compare(&_date, &rhs->_date);
}

void Track :: read(file &file)
{
	unsigned int library_id, artist_id, album_id, genre_id;
	gchar *path;

	file_readf(&file, "%u %u %u %u %u", &library_id, &artist_id,
					    &album_id, &genre_id, &_track);
	date_read(&file, &_date);
	file_readf(&file, "%u %u", &_count, &_length);

	GenericTag :: read(file);
	path  = file_readl(&file);
	_path = path;
	g_free(path);

	_library = tags :: get_library(library_id);
	_artist  = tags :: get_artist(artist_id);
	_album   = tags :: get_album(album_id);
	_genre   = tags :: get_genre(genre_id);

	filter :: add(name(), index());
	filter :: add(_artist->name(), index());
	filter :: add(_album->name(), index());
	_library->inc_size();
}

void Track :: write(file &file)
{
	file_writef(&file, "%u %u %u %u %u ", _library->index(), _artist->index(),
				_album->index(), _genre->index(), _track);
	date_write(&file, &_date);
	file_writef(&file, " %u %u ", _count, _length);
	GenericTag :: write(file);
	file_writef(&file, "\n%s\n", _path.c_str());
}


void tags :: init_track_db()
{
	track_db.load();
}

Track *tags :: add_track(Album *album, Artist *artist, Genre *genre,
			 Library *library, const std::string &filepath,
			 const std::string &name, unsigned int length,
			 unsigned int track)
{
	std::string path = filepath.substr(library->primary_key().size() + 1);
	return track_db.insert(Track(album, artist, genre, library, path,
				     name, length, track));
}

Track *tags :: get_track(const unsigned int index)
{
	return track_db.at(index);
}

void tags :: remove_track(Track *track)
{
	track_db.remove(track->index());
}

void tags :: remove_library_tracks(Library *library)
{
	Database<Track>::iterator it;

	for (it = track_db.begin(); it != track_db.end(); it = track_db.next(it)) {
		if ((*it)->library() == library)
			track_db.remove((*it)->index());
	}
	tags :: commit_track_db();
}

unsigned int tags :: track_size()
{
	return track_db.actual_size();
}

void tags :: commit_track_db()
{
	track_db.save();
}