CHGenerator/WebsiteGenerator/Content/LinkPreviewMetadataProvider.swift

import Foundation

protocol LinkPreviewMetadataProvider {

    var linkPreview: LinkPreviewMetadata? { get }

    var title: String { get }

    var subtitle: String? { get }

    var description: String { get }
}

extension LinkPreviewMetadataProvider {

    var linkPreviewTitle: String {
        linkPreview?.title ?? title
    }

    var linkPreviewDescription: String {
        linkPreview?.description ?? subtitle ?? description
    }
}