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The folder model and representation code should be separated from the view presentation in VLCLibraryController. There is a lot of state to handle the representation and creation of folders, the moving in and out of folders and for reordering within.

This leads to a lot of complexity and state that needs to be maintained like:

• BOOL _inFolder;
• _indexPaths (which are also used for deletion)
• id _folderObject;

After solving the decoupling of MediaModel from the View representation we should move code handling folders out of the LibraryVC as well.

This includes methods like:

• (void)rearrangeFolderTrackNumbersForRemovedItem:(MLFile *) mediaObject
• (void)createFolder
• (void)removeFromFolder
• (void)createFolderWithName:(NSString *)folderName
• (void)collectionView:(UICollectionView *)collectionView requestToMoveItemAtIndexPath:(NSIndexPath *)itemPath intoFolderAtIndexPath:(NSIndexPath *)folderPath