class HomeTableViewCell: UITableViewCell{
    @IBOutlet weak var collectionView: UICollectionView!
    @IBOutlet weak var pageControl: UIPageControl!

    override func awakeFromNib() {
        super.awakeFromNib()

        // pageControl 
        pageControl.numberOfPages = 2
        pageControl.currentPage = 0
        pageControl.pageIndicatorTintColor = UIColor.white.withAlphaComponent(0.3)
        pageControl.currentPageIndicatorTintColor = UIColor(named: "7A7BDA")
        pageControl.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
    }
}

extension HomeTableViewCell: UICollectionViewDelegate, UICollectionViewDataSource {
    func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
        let page = Int(targetContentOffset.pointee.x / self.frame.width)
        self.pageControl.currentPage = page
      }
    
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        let width = scrollView.bounds.size.width
        let x = scrollView.contentOffset.x + (width/2)
        
        let newPage = Int(x/width)
        if pageControl.currentPage != newPage {
            pageControl.currentPage = newPage
        }
    }
}