CollorAPI.SectionDescriptor.swift

public class SectionDescriptor: CollectionSectionDescribable {
    
    private var lineSpacing = VerticalSpace.zero
    private var horizontalInset: CGFloat = Inset.sectionDefault
    
    public func lineSpacing(_ value: VerticalSpace) -> SectionDescriptor {
        lineSpacing = value
        return self
    }
    
    public func horizontalInset(_ value: Inset) -> SectionDescriptor {
        horizontalInset = value
        return self
    }
    
    public func sectionInset(_ collectionView: UICollectionView) -> UIEdgeInsets {
        return UIEdgeInsets(top: 0, left: horizontalInset, bottom: 0, right: horizontalInset)
    }
    
    public func minimumLineSpacing(_ collectionView: UICollectionView, layout: UICollectionViewFlowLayout) -> CGFloat {
        return lineSpacing
    }