checkpoint

src/api/rss-parser.ts

@@ -0,0 +1,53 @@
+import type { Podcast } from "../types/podcast"
+import type { Episode } from "../types/episode"
+
+const getTagValue = (xml: string, tag: string): string => {
+  const match = xml.match(new RegExp(`<${tag}[^>]*>([\s\S]*?)</${tag}>`, "i"))
+  return match?.[1]?.trim() ?? ""
+}
+
+const decodeEntities = (value: string) =>
+  value
+    .replace(/&lt;/g, "<")
+    .replace(/&gt;/g, ">")
+    .replace(/&amp;/g, "&")
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+
+export const parseRSSFeed = (xml: string, feedUrl: string): Podcast & { episodes: Episode[] } => {
+  const channel = xml.match(/<channel[\s\S]*?<\/channel>/i)?.[0] ?? xml
+  const title = decodeEntities(getTagValue(channel, "title")) || "Untitled Podcast"
+  const description = decodeEntities(getTagValue(channel, "description"))
+  const author = decodeEntities(getTagValue(channel, "itunes:author"))
+  const lastUpdated = new Date()
+
+  const items = channel.match(/<item[\s\S]*?<\/item>/gi) ?? []
+  const episodes = items.map((item, index) => {
+    const epTitle = decodeEntities(getTagValue(item, "title")) || `Episode ${index + 1}`
+    const epDescription = decodeEntities(getTagValue(item, "description"))
+    const pubDate = new Date(getTagValue(item, "pubDate") || Date.now())
+    const enclosure = item.match(/<enclosure[^>]*url=["']([^"']+)["'][^>]*>/i)
+    const audioUrl = enclosure?.[1] ?? ""
+
+    return {
+      id: `${feedUrl}#${index}`,
+      podcastId: feedUrl,
+      title: epTitle,
+      description: epDescription,
+      audioUrl,
+      duration: 0,
+      pubDate,
+    }
+  })
+
+  return {
+    id: feedUrl,
+    title,
+    description,
+    author,
+    feedUrl,
+    lastUpdated,
+    isSubscribed: true,
+    episodes,
+  }
+}