import Foundation

extension Site {
    
    struct LocalizedMetadata {

        let languageIdentifier: String

        let linkPreview: LinkPreviewMetadata?

        let title: String

        let subtitle: String?

        let description: String

        /**
         The text on the back navigation link of contained elements.

         This text does not appear on the section page, but on the pages contained within the section.
         */
        let backLinkText: String?

        /**
         The back text to use for element which don't specify a `backLinkText` themselves.
         */
        let defaultBackLinkText: String

        /**
         The text to show as a title for placeholder boxes

         Placeholders are included in missing pages.
         */
        let placeholderTitle: String

        /**
         The text to show as a description for placeholder boxes

         Placeholders are included in missing pages.
         */
        let placeholderText: String
    }
}

extension Site.LocalizedMetadata: Codable {

}

extension Site.LocalizedMetadata: LanguageIdentifiable {

}

extension Site.LocalizedMetadata {

    static var initial: Site.LocalizedMetadata {
        .init(
            languageIdentifier: "en",
            linkPreview: .initial,
            title: "Website name on front page",
            subtitle: "Tag line on front page",
            description: "Some text below the tag line on the title page",
            backLinkText: "Back to start",
            defaultBackLinkText: "Back",
            placeholderTitle: "Content missing",
            placeholderText: "This page is incomplete. Content will be added in the coming days.")
    }
}

extension Site.LocalizedMetadata: LinkPreviewMetadataProvider {

}