79 lines
2.8 KiB
TypeScript
79 lines
2.8 KiB
TypeScript
import { nrkRadio, Episode } from "../../../lib/nrk.ts"
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import { HandlerContext } from "$fresh/server.ts";
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import { serialize, tag, declaration } from "https://raw.githubusercontent.com/olaven/serialize-xml/v0.4.0/mod.ts";
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function toItemTag(episode: Episode) {
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const description = episode.titles.subtitle || "";
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return tag("item", [
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tag("title", episode.titles.title),
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tag("link", episode.url),
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tag("description", description),
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tag("itunes:summary", description),
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tag("guid", episode.id, [["isPermaLink", "false"]]),
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tag("pubDate", new Date(episode.date).toUTCString()),
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tag("itunes:duration", episode.durationInSeconds.toString()),
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tag("enclosure", "", [
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["url", episode.url],
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["length", episode.durationInSeconds.toString()],
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["type", "audio/mpeg3"],
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]),
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])
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}
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async function buildFeed(seriesId: string) {
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const serie = await nrkRadio.getSerieData(seriesId)
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const imageUrl = serie.squareImage.at(-1)?.url;
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const linkValue = `https://radio.nrk.no/podkast/${serie.id}`;
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// Quickly adapted from https://raw.githubusercontent.com/olaven/paperpod/1cde9abd3174b26e126aa74fc5a3b63fd078c0fd/packages/converter/src/rss.ts
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return serialize(
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declaration([
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["version", "1.0"],
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["encoding", "UTF-8"],
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]),
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tag(
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"rss",
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[
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tag("channel", [
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tag("title", serie.titles.title),
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tag("link", linkValue),
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tag("itunes:author", "NRK"),
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tag(
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"description",
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serie.titles.subtitle || ""
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),
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tag("ttl", "60"), //60 minutes
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...(imageUrl ? [
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tag("itunes:image", "", [
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["href", imageUrl],
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]),
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tag("image", [
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tag("url", imageUrl),
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tag("title", serie.titles.title),
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tag("link", linkValue),
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])
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] : []),
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...serie.episodes.map(toItemTag),
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]),
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],
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[
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["version", "2.0"],
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["xmlns:itunes", "http://www.itunes.com/dtds/podcast-1.0.dtd"],
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["xmlns:content", "http://purl.org/rss/1.0/modules/content/"],
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]
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)
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);
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}
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export const handler = async (req: Request, _ctx: HandlerContext): Promise<Response> => {
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const seriesId = _ctx.params.seriesId;
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const feedContent = await buildFeed(seriesId);
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return new Response(feedContent, {
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headers: {
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"Content-Type": "application/rss+xml"
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}
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});
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};
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