final class PageGenerator {

    private let content: Content

    private let imageGenerator: ImageGenerator

    private let navigationBarLinks: [NavigationBar.Link]

    init(content: Content, imageGenerator: ImageGenerator, navigationBarLinks: [NavigationBar.Link]) {
        self.content = content
        self.imageGenerator = imageGenerator
        self.navigationBarLinks = navigationBarLinks
    }

    func generate(page: Page, language: ContentLanguage) throws -> (page: String, results: PageGenerationResults) {
        let contentGenerator = PageContentParser(
            content: content,
            language: language)

        let rawPageContent = try content.storage.pageContent(for: page.id, language: language)

        let pageContent = contentGenerator.generatePage(from: rawPageContent)

        contentGenerator.requestImages(imageGenerator)

        let localized = page.localized(in: language)

        let tags: [FeedEntryData.Tag] = page.tags.map { tag in
            .init(name: tag.localized(in: language).name,
                  url: content.absoluteUrlToTag(tag, language: language))
        }

        let headers = AdditionalPageHeaders(
            headers: contentGenerator.results.requiredHeaders,
            assetPath: content.settings.pages.javascriptFilesPath)
        let fullPage = ContentPage(
            language: language,
            dateString: page.dateText(in: language),
            title: localized.title,
            tags: tags,
            linkTitle: localized.linkPreviewTitle ?? localized.title,
            description: localized.linkPreviewDescription ?? "",
            navigationBarLinks: navigationBarLinks,
            pageContent: pageContent,
            headers: headers.content,
            footers: contentGenerator.results.requiredFooters.sorted())
            .content

        return (fullPage, contentGenerator.results)
    }
}