Split in modules

src/RaiPlaySound.d.ts

@@ -1,4 +1,4 @@
-declare namespace RaiPlaySound {
+declare module 'RaiPlaySound' {
 
     interface PageUpdated {
         date: string;
@@ -225,5 +225,4 @@ declare namespace RaiPlaySound {
         track_info: TrackInfo;
     }
 
-}
-
+}

src/api.ts

@@ -0,0 +1,7 @@
+import fetch from 'node-fetch';
+import { ProgrammaInfo } from 'RaiPlaySound';
+
+export async function fetchProgrammaAsync(programma: string) {
+    const response = await fetch(`https://www.raiplaysound.it/programmi/${programma}.json`);
+    return await response.json() as Promise<ProgrammaInfo>;
+}

src/feed.ts

@@ -0,0 +1,47 @@
+import { Feed } from 'feed';
+import moment from 'moment';
+import { ProgrammaInfo } from 'RaiPlaySound';
+export { Feed } from 'feed';
+
+export function newProgrammaFeed(programmaInfo: ProgrammaInfo) {
+    const feed = new Feed({
+        title: programmaInfo.podcast_info.title,
+        description: programmaInfo.podcast_info.description,
+        id: programmaInfo.podcast_info.uniquename,
+        link: 'https://www.raiplaysound.it/' + programmaInfo.podcast_info.weblink,
+        language: "it-it",
+        image: 'https://www.raiplaysound.it/' + programmaInfo.podcast_info.image,
+        copyright: "Rai - Radiotelevisione Italiana Spa",
+        updated: moment(programmaInfo.block.update_date, "DD-MM-YYYY hh:mm:ss").toDate(), // optional, default = today
+        generator: "RaiPlay Sound",
+        author: {
+            name: "RaiPlay Sound",
+            email: "[email protected]"
+        }
+    });
+
+    programmaInfo.podcast_info.genres.forEach(genre => feed.addCategory(genre.name));
+    programmaInfo.podcast_info.subgenres.forEach(subgenre => feed.addCategory(subgenre.name));
+
+    programmaInfo.block.cards.forEach(post => {
+        feed.addItem({
+            title: post.episode_title,
+            link: 'https://www.raiplaysound.it/' + post.weblink,
+            id: post.uniquename,
+            description: post.description,
+            date: moment(post.literal_publication_date, "DD MMM YYYY", "it").toDate() || moment(post.create_date, "DD-MM-YYYY").toDate(),
+            image: 'https://www.raiplaysound.it/' + post.image,
+            audio: {
+                url: (post.downloadable_audio || post.audio).url,
+                title: (post.downloadable_audio || post.audio).title,
+                type: 'audio/mpeg'
+            }
+        });
+    });
+
+    feed.addContributor({
+        email: programmaInfo.podcast_info.contacts.email,
+    });
+
+    return feed;
+}

src/server.ts

@@ -1,9 +1,8 @@
 import express from 'express';
-import fetch from 'node-fetch';
 import pino from 'pino-http';
-import { Feed } from 'feed';
-import moment from 'moment';
 import cache from './cache';
+import { fetchProgrammaAsync } from './api';
+import { newProgrammaFeed } from './feed';
 
 const app = express()
 const port = 3000
@@ -12,8 +11,8 @@ app.use(pino());
 
 app.get('/:programma', cache(60), async (req, res, next) => {
   try {
-    const programmaInfo = await getProgrammaInfoAsync(`https://www.raiplaysound.it/programmi/${req.params.programma}.json`);
-    const feed = generateFeed(programmaInfo);
+    const programmaInfo = await fetchProgrammaAsync(req.params.programma);
+    const feed = newProgrammaFeed(programmaInfo);
     res.set('Content-Type', 'application/rss+xml');
     res.send(feed.rss2());
   } catch (error) {
@@ -23,52 +22,4 @@ app.get('/:programma', cache(60), async (req, res, next) => {
 
 app.listen(port, () => {
   console.log(`Example app listening on port ${port}`)
-})
-
-async function getProgrammaInfoAsync(url: string) {
-  const response = await fetch(url);
-  return await response.json() as Promise<RaiPlaySound.ProgrammaInfo>;
-}
-
-function generateFeed(programmaInfo: RaiPlaySound.ProgrammaInfo) {
-  const feed = new Feed({
-    title: programmaInfo.podcast_info.title,
-    description: programmaInfo.podcast_info.description,
-    id: programmaInfo.podcast_info.uniquename,
-    link: 'https://www.raiplaysound.it/' + programmaInfo.podcast_info.weblink,
-    language: "it-it",
-    image: 'https://www.raiplaysound.it/' + programmaInfo.podcast_info.image,
-    copyright: "Rai - Radiotelevisione Italiana Spa",
-    updated: moment(programmaInfo.block.update_date, "DD-MM-YYYY hh:mm:ss").toDate(), // optional, default = today
-    generator: "RaiPlay Sound",
-    author: {
-      name: "RaiPlay Sound",
-      email: "[email protected]"
-    }
-  });
-
-  programmaInfo.podcast_info.genres.forEach(genre => feed.addCategory(genre.name));
-  programmaInfo.podcast_info.subgenres.forEach(subgenre => feed.addCategory(subgenre.name));
-
-  programmaInfo.block.cards.forEach(post => {
-    feed.addItem({
-      title: post.episode_title,
-      link: 'https://www.raiplaysound.it/' + post.weblink,
-      id: post.uniquename,
-      description: post.description,
-      date: moment(post.literal_publication_date, "DD MMM YYYY", "it").toDate() || moment(post.create_date, "DD-MM-YYYY").toDate(),
-      image: 'https://www.raiplaysound.it/' + post.image,
-      audio: {
-        url: (post.downloadable_audio || post.audio).url,
-        title: (post.downloadable_audio || post.audio).title,
-        type: 'audio/mpeg'
-      }
-    });
-  });
-
-  feed.addContributor({
-    email: programmaInfo.podcast_info.contacts.email,
-  });
-
-  return feed;
-}
+})