public void moveTracks(int[] indexesToMove, int insertionPoint, TrackDatabase db) {
Arrays.sort(indexesToMove);
Track[] oldPlaylist = getTracksInPlaylist(db);
int[] newTrackIDs = new int[oldPlaylist.length];
TrackType[] trackTypes = new TrackType[oldPlaylist.length];
boolean allLocal = true;
boolean allSpotify = true;
// Create the array of track IDs based on the insertion point and indexes to move
int addAt = 0;
for (int i = 0; i <= oldPlaylist.length; i++) {
// if i = row, this is the insertion point. cyle through indexesToMove and copy them across
if (i == insertionPoint) {
for (int j = 0; j < indexesToMove.length; j++) {
newTrackIDs[addAt] = oldPlaylist[indexesToMove[j]].getTrackID();
if (oldPlaylist[indexesToMove[j]] instanceof ClientTrack) {
trackTypes[addAt] = TrackType.Local;
allSpotify = false;
} else {
trackTypes[addAt] = TrackType.Spotify;
allLocal = false;
}
addAt++;
}
}
// Add track.get(i) to new tracks if it's not in the list of indexes to move
// Also check array bounds -- we have to cycle with i untill one after the length, in case we
// drop at the end of the list.
if (i < oldPlaylist.length && Arrays.binarySearch(indexesToMove, i) < 0) {
newTrackIDs[addAt] = oldPlaylist[i].getTrackID();
if (oldPlaylist[i].isClientTrack()) {
trackTypes[addAt] = TrackType.Local;
allSpotify = false;
} else {
trackTypes[addAt] = TrackType.Spotify;
allLocal = false;
}
addAt++;
}
}
// Recreate the playlist with the new trackIDs
db.recreatePlaylist(newTrackIDs, this.playlistID, allLocal, allSpotify, trackTypes);
}
public void addTracks(ClientTrack[] tracksToAdd, int insertionPoint, TrackDatabase db) {
Track[] oldPlaylist = getTracksInPlaylist(db);
int[] newTrackIDs = new int[oldPlaylist.length + tracksToAdd.length];
TrackType[] trackTypes = new TrackType[oldPlaylist.length + tracksToAdd.length];
boolean allLocal = true;
boolean allSpotify = true;
int addAt = 0;
for (int i = 0; i <= oldPlaylist.length; i++) {
if (i == insertionPoint) {
for (int j = 0; j < tracksToAdd.length; j++) {
newTrackIDs[addAt] = tracksToAdd[j].getTrackID();
if (tracksToAdd[j] instanceof ClientTrack) {
trackTypes[addAt] = TrackType.Local;
allSpotify = false;
} else {
trackTypes[addAt] = TrackType.Spotify;
allLocal = false;
}
addAt++;
}
}
if (i < oldPlaylist.length) {
newTrackIDs[addAt] = oldPlaylist[i].getTrackID();
if (oldPlaylist[i] instanceof ClientTrack) {
trackTypes[addAt] = TrackType.Local;
allSpotify = false;
} else {
trackTypes[addAt] = TrackType.Spotify;
allLocal = false;
}
addAt++;
}
}
db.recreatePlaylist(newTrackIDs, this.playlistID, allLocal, allSpotify, trackTypes);
}
