Update dinosaurwet

src/dinosaurwet/dinosaurwet.controller.ts

@@ -1,5 +1,6 @@
 import { Controller, Get, Res } from '@nestjs/common';
 import { Response } from 'express';
+import { identity } from 'ramda';
 import * as xml from 'xml';
 
 const episodeFiles: [number, string][] = [
@@ -27,7 +28,16 @@ const episodeFiles: [number, string][] = [
 
 const startDate = new Date('2023-10-02');
 
-const episodes = episodeFiles.map((file, i) => {
+type Episode = {
+  filename: string;
+  length: number;
+  url: string;
+  title: string;
+  description: string;
+  fakeReleaseDate: Date;
+};
+
+const episodes: Episode[] = episodeFiles.map((file, i) => {
   const [length, filename] = file;
   return {
     filename,
@@ -40,69 +50,79 @@ const episodes = episodeFiles.map((file, i) => {
       .trim(),
     description:
       'A bootleg-ish of Dinosar Wet, making the downloaded files more like and RSS feed',
-    fakeReleaseDate: new Date(startDate).setDate(startDate.getDate() + i * 7),
+    fakeReleaseDate: new Date(
+      new Date(startDate).setDate(startDate.getDate() + i * 7),
+    ),
   };
 });
 
+const buildFeeds = (
+  episodes: Episode[],
+  dateFn: (date: Date) => Date = identity,
+) => {
+  const feedObject = {
+    rss: [
+      {
+        _attr: {
+          version: '2.0',
+          'xmlns:atom': 'http://www.w3.org/2005/Atom',
+        },
+      },
+      {
+        channel: [
+          {
+            'atom:link': {
+              _attr: {
+                href: 'https://api.us.dev/dinosaurwet',
+                rel: 'self',
+                type: 'application/rss+xml',
+              },
+            },
+          },
+          {
+            title: 'Dinosaur Wet - All At Once',
+          },
+          {
+            link: 'https://sanspantsradio.com',
+          },
+          {
+            description:
+              'A recreation of Dinosaur Wet as an RSS feed for listeners-with-licenses enjoyment.',
+          },
+          { language: 'en-US' },
+          ...episodes.map(({ title, url, length }) => ({
+            item: [
+              { title },
+              { guid: url },
+              { pubDate: startDate.toUTCString() },
+              {
+                enclosure: [
+                  {
+                    _attr: {
+                      url,
+                      type: 'audio/mpeg',
+                      length,
+                    },
+                  },
+                ],
+              },
+            ],
+          })),
+        ],
+      },
+    ],
+  };
+
+  const feed = '<?xml version="1.0" encoding="UTF-8"?>' + xml(feedObject);
+  return feed;
+};
+
 @Controller('dinosaurwet')
 export class DinosaurwetController {
   @Get('')
   getAllAtOnce(@Res() response: Response) {
     response.header('Content-Type', 'application/xml');
-    const feedObject = {
-      rss: [
-        {
-          _attr: {
-            version: '2.0',
-            'xmlns:atom': 'http://www.w3.org/2005/Atom',
-          },
-        },
-        {
-          channel: [
-            {
-              'atom:link': {
-                _attr: {
-                  href: 'https://api.us.dev/dinosaurwet',
-                  rel: 'self',
-                  type: 'application/rss+xml',
-                },
-              },
-            },
-            {
-              title: 'Dinosaur Wet - All At Once',
-            },
-            {
-              link: 'https://sanspantsradio.com',
-            },
-            {
-              description:
-                'A recreation of Dinosaur Wet as an RSS feed for listeners-with-licenses enjoyment.',
-            },
-            { language: 'en-US' },
-            ...episodes.map(({ title, url, length }) => ({
-              item: [
-                { title },
-                { guid: url },
-                { pubDate: startDate.toUTCString() },
-                {
-                  enclosure: [
-                    {
-                      _attr: {
-                        url,
-                        type: 'audio/mpeg',
-                        length,
-                      },
-                    },
-                  ],
-                },
-              ],
-            })),
-          ],
-        },
-      ],
-    };
-
-    const feed = '<?xml version="1.0" encoding="UTF-8"?>' + xml(feedObject);
+    const feed = buildFeeds(episodes);
     return response.send(feed);
   }
 }