package se.despotify.client.protocol.command.media.playlist;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import se.despotify.client.protocol.PacketType;
import se.despotify.client.protocol.Protocol;
import se.despotify.client.protocol.channel.Channel;
import se.despotify.client.protocol.channel.ChannelCallback;
import se.despotify.client.protocol.command.Command;
import se.despotify.client.protocol.command.ChecksumException;
import se.despotify.domain.Store;
import se.despotify.domain.User;
import se.despotify.domain.media.Playlist;
import se.despotify.domain.media.PlaylistContainer;
import se.despotify.domain.media.Track;
import se.despotify.exceptions.DespotifyException;
import se.despotify.util.Hex;
import se.despotify.util.XML;
import se.despotify.util.XMLElement;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.util.Date;
import java.util.ArrayList;
/**
* despotify out
* <p/>
* head chn hex t rev? pos? chksum? ?
* | | | | | | |
* 3600e5 0000 0000000000000000000000000000000000 00000005 00000000 00000001 00
* <p/>
* spotify out
* <p/>
* | | | | | |
* 3600e5 0000 0000000000000000000000000000000000 00000006 00000001 3d2b066a 00 (1)
* <p/>
* 3600e5 0000 0000000000000000000000000000000000 00000007 00000002 dca00bb1 00 (2)
* <p/>
* 3600e5 0000 0000000000000000000000000000000000 0000000d 00000003 f17b1436 00 (3)
* <p/>
* 3600e6 0000 0000000000000000000000000000000000 0000004e 00000016 64b7b279 00 (23)
* <p/>
* <p/>
* <p/>
* <p/>
* <p/>
* create 1:
* <p/>
* 3600e50000000000 0000000000000000 0000000000000000 0006000000013d2b [6?????????????????????????????=+]
* 066a00033c636861 6e67653e3c6f7073 3e3c6164643e3c69 3e313c2f693e3c69 [?j??<change><ops><add><i>1</i><i]
* 74656d733e666435 3131393362333934 3239383133303032 3838353061316137 [tems>fd51193b394298130028850a1a7]
* 326262376630323c 2f6974656d733e3c 2f6164643e3c2f6f 70733e3c74696d65 [2bb7f02</items></add></ops><time]
* 3e31323430353335 3130353c2f74696d 653e3c757365723e 6b656e742e66696e [>1240535105</time><user>kent.fin]
* 656c6c3c2f757365 723e3c2f6368616e 67653e3c76657273 696f6e3e30303030 [ell</user></change><version>0000]
* 3030303030372c30 3030303030303030 322c333730313437 363237332c303c2f [000007,0000000002,3701476273,0</]
* 76657273696f6e3e [version>]
* <p/>
* create 2:
* <p/>
* 3600e50000000000 0000000000000000 0000000000000000 000700000002dca0 [6???????????????????????????????]
* 0bb100033c636861 6e67653e3c6f7073 3e3c6164643e3c69 3e323c2f693e3c69 [????<change><ops><add><i>2</i><i]
* 74656d733e353731 3065363663646538 6133356266613832 3464353666383566 [tems>5710e66cde8a35bfa824d56f85f]
* 646162333130323c 2f6974656d733e3c 2f6164643e3c2f6f 70733e3c74696d65 [dab3102</items></add></ops><time]
* 3e31323430353335 3134383c2f74696d 653e3c757365723e 6b656e742e66696e [>1240535148</time><user>kent.fin]
* 656c6c3c2f757365 723e3c2f6368616e 67653e3c76657273 696f6e3e30303030 [ell</user></change><version>0000]
* 3030303030382c30 3030303030303030 332c343035313337 353135382c303c2f [000008,0000000003,4051375158,0</]
* 76657273696f6e3e [version>]
* <p/>
* deleted and unded deletion of pos 1, then sent create 3:
* <p/>
* 3600e50000000000 0000000000000000 0000000000000000 000d00000003f17b [6??????????????????????????????{]
* 143600033c636861 6e67653e3c6f7073 3e3c6164643e3c69 3e333c2f693e3c69 [?6??<change><ops><add><i>3</i><i]
* 74656d733e363961 6533356665386434 3665353638353232 6333626461323565 [tems>69ae35fe8d46e568522c3bda25e]
* 356532356530323c 2f6974656d733e3c 2f6164643e3c2f6f 70733e3c74696d65 [5e25e02</items></add></ops><time]
* 3e31323430353336 3534353c2f74696d 653e3c757365723e 6b656e742e66696e [>1240536545</time><user>kent.fin]
* 656c6c3c2f757365 723e3c2f6368616e 67653e3c76657273 696f6e3e30303030 [ell</user></change><version>0000]
* 3030303031342c30 3030303030303030 342c323533343038 373830372c303c2f [000014,0000000004,2534087807,0</]
* 76657273696f6e3e [version>]
* <p/>
*
* @since 2009-apr-24 02:47:16
*/
public class CreatePlaylistWithReservedUUID extends Command<Boolean> {
private static Logger log = LoggerFactory.getLogger(CreatePlaylistWithReservedUUID.class);
private Store store;
private Playlist playlist;
private User user;
public CreatePlaylistWithReservedUUID(Store store, User user, Playlist playlist) {
this.store = store;
this.playlist = playlist;
this.user = user;
}
@Override
public Boolean send(Protocol protocol) throws DespotifyException {
if (playlist.isCollaborative() == null) {
playlist.setCollaborative(false);
}
ChannelCallback callback = new ChannelCallback();
/* Create channel and buffer. */
Channel channel = new Channel("Create-Playlist-Channel", Channel.Type.TYPE_PLAYLIST, callback);
if (user.getPlaylists() == null) {
log.warn("user playlists not loaded yet! should it be? loading..");
new LoadUserPlaylists(store, user).send(protocol);
}
PlaylistContainer playlists = user.getPlaylists();
playlists.getItems().add(playlist);
int position = playlists.getItems().size() - 1;
String xml = String.format
("<change><ops><add><i>%s</i><items>%s</items></add></ops><time>%s</time><user>%s</user></change>" +
"<version>%010d,%010d,%010d,%d</version>",
// change
position,
Hex.toHex(playlist.getUUID()) + "02",
new Date().getTime() / 1000,
user.getName(),
// version
playlists.getRevision() + 1, // new revision of user playlists
playlists.getItems().size(), // new size of user playlists
playlists.calculateChecksum(), // new checksum of user playlists
playlist.isCollaborative() ? 1 : 0
);
byte[] xmlBytes = xml.getBytes();
ByteBuffer buffer = ByteBuffer.allocate(2 + 16 + 1 + 4 + 4 + 4 + 1 + 1 + xmlBytes.length);
buffer.putShort((short) channel.getId());
buffer.put(Hex.toBytes("00000000000000000000000000000000")); // UUID? not used
buffer.put((byte) 0x00); // type? not used
buffer.putInt((int) playlists.getRevision()); // previous revision of user playlists
buffer.putInt(position);
buffer.putInt((int) playlists.getChecksum()); // previous checksum of user playlists
buffer.put((byte) (playlist.isCollaborative() ? 0x01 : 0x00));
buffer.put((byte) 0x03); // unknown
buffer.put(xmlBytes);
buffer.flip();
/* Register channel. */
Channel.register(channel);
/* Send packet. */
protocol.sendPacket(PacketType.changePlaylist, buffer, "create playlist");
/* Get response. */
byte[] data = callback.getData("create playlist response");
xml = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<playlists>\n" +
new String(data, Charset.forName("UTF-8")) +
"\n</playlists>";
if (log.isDebugEnabled()) {
log.debug(xml);
}
XMLElement response = XML.load(xml);
final XMLElement versionParentElement;
if (response.hasChild("confirm")) {
versionParentElement = response.getChild("confirm");
} else if (response.hasChild("")) {
versionParentElement = response;
} else {
throw new RuntimeException("Unknown server response:\n" + xml);
}
// <version>0000000007,0000000002,3701476273,0</version>
String[] versionTagValues = versionParentElement.getChildText("version").split(",", 4);
playlists.setRevision(Long.parseLong(versionTagValues[0]));
playlists.setChecksum(Long.parseLong(versionTagValues[2]));
if (playlists.getItems().size() != Long.parseLong(versionTagValues[1])) {
throw new RuntimeException("Size missmatch");
}
if (playlists.calculateChecksum() != playlists.getChecksum()) {
throw new ChecksumException(playlists.calculateChecksum(), playlists.getChecksum());
}
if (playlist.isCollaborative() != (Integer.parseInt(versionTagValues[3]) == 1)) {
throw new RuntimeException("Collaborative flag missmatch");
}
playlist.setRevision(1l);
playlist.setTracks(new ArrayList<Track>());
playlist.setChecksum(1l);
return true;
}
}