import Foundation

extension Page {

    struct LocalizedMetadata {

        let id: String

        let title: String

        #warning("Generate title suffix")
        let titleSuffix: String?

        let linkPreview: LinkPreviewMetadata?

        let subtitle: String?

        #warning("Generate thumbnail suffix")
        let thumbnailSuffix: String?

        let cornerText: String?

        /**
         The external url to use instead of automatically generating the page.

         This property can be used for links to other parts of the site, like additional services.
         It can also be set to manually write a page.
         */
        let externalUrl: String?

    }

}
extension Page.LocalizedMetadata: Codable {

}

extension Page.LocalizedMetadata: LanguageIdentifiable {

    var languageIdentifier: String {
        id
    }
}

extension Page.LocalizedMetadata {

    static var initial: Page.LocalizedMetadata {
        .init(id: "en",
              title: "Page title",
              titleSuffix: nil,
              linkPreview: .initial,
              subtitle: "Some text below the title",
              thumbnailSuffix: "Project",
              cornerText: nil,
              externalUrl: nil)
    }
}

extension Page.LocalizedMetadata: LinkPreviewMetadataProvider {

    var description: String { subtitle ?? title }
}