Extract link preview data from given URL

GetLinkPreviewDataInteractorImpl.kt

class GetLinkPreviewDataInteractorImpl @Inject constructor(
    private val okHttpClient: OkHttpClient
) : GetLinkPreviewDataInteractor {

    override fun execute(url: String): Single<LinkPreviewData> {
        return Single.fromCallable {
            okHttpClient.newCall(Builder().url(url).build()).execute().use { response ->
                val requestedUrl = response.request.url.toString()

                Jsoup.parse(response.body!!.string()).let {
                    val title = it.select("meta[property=og:title]").firstOrNull()?.attr("content")
                    val description = it.select("meta[property=og:description]").firstOrNull()?.attr("content")
                    var imageUrl = it.select("meta[property=og:image]").firstOrNull()?.attr("content")

                    if (!imageUrl.isNullOrEmpty() && Uri.parse(imageUrl).scheme.isNullOrEmpty()) {
                        imageUrl = Uri.parse(imageUrl)
                            .buildUpon()
                            .apply { scheme(Uri.parse(requestedUrl).scheme) }
                            .build()
                            .toString()
                    }

                    LinkPreviewData(title, description, imageUrl, requestedUrl)
                }
            }
        }
    }

    data class LinkPreviewData(
        val title: String? = null,
        val description: String? = null,
        val imageUrl: String? = null,
        val url: String
    )
}