func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    if indexPath.row == 0 {
        handleSelectProfileImageView()
    } else {
        let cell = collectionView.cellForItem(at: indexPath) as ?
            CustomUICollectionViewCell
        let currentPhoto = gallery[indexPath.row - 1]
        let galleryPreview = INSPhotosViewController(photos: gallery, initialPhoto: currentPhoto, referenceView: cell)
        galleryPreview.referenceViewForPhotoWhenDismissingHandler = {
            [weak self] photo in
            if let index = self ? .gallery.index(where: {
                $0 === photo
            }) {
                let indexPath = NSIndexPath(item: index, section: 0)
                return collectionView.cellForItem(at: indexPath as IndexPath) as ? CustomUICollectionViewCell
            }
            return nil
        }
        present(galleryPreview, animated: true, completion: nil)
    }
}

@objc func handleSelectProfileImageView() {
    let picker = UIImagePickerController()
    picker.delegate = self
    picker.allowsEditing = false
    present(picker, animated: true, completion: nil)
}