From 9dfeb7ac4e30d2e1cf2a6267d4c4cd26cc5ef85f Mon Sep 17 00:00:00 2001
From: JP Hastings-Spital <jphastings@gmail.com>
Date: Sat, 1 Feb 2025 10:51:20 +0000
Subject: [PATCH] IMprove XSL and podcast XML

---
 layouts/_default/list.podcast.xml |  5 ++++-
 layouts/shortcodes/podcast.html   |  2 ++
 static/rss.xsl                    | 35 ++++++++++++++++++++++++-------
 3 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/layouts/_default/list.podcast.xml b/layouts/_default/list.podcast.xml
index 3921b960..bc9fbd60 100644
--- a/layouts/_default/list.podcast.xml
+++ b/layouts/_default/list.podcast.xml
@@ -6,7 +6,7 @@
 {{- end -}}
 {{- printf "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>" | safeHTML }}
 {{- printf "<?xml-stylesheet href=\"/rss.xsl\" type=\"text/xsl\"?>" | safeHTML }}
-<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd">
+<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd">
   <channel>
     <title>{{ if eq  .Title  .Site.Title }}{{ .Site.Title }}{{ else }}{{ with .Title }}{{.}} on {{ end }}{{ .Site.Title }}{{ end }}</title>
     <link>{{ .Permalink | absURL }}</link>
@@ -19,6 +19,9 @@
     <itunes:image>{{ "profile-512.jpg" | absURL }}</itunes:image>{{ with .Site.Copyright }}
     <copyright>{{.}}</copyright>{{end}}{{ if not .Date.IsZero }}
     <lastBuildDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</lastBuildDate>{{ end }}
+    {{- with .OutputFormats.Get "Podcast" -}}
+    {{ printf "<atom:link href=%q rel=\"self\" type=%q />" (.Permalink | absURL) .MediaType | safeHTML }}
+    {{- end -}}
     {{- range $i, $page := $pages -}}
     {{- if not .Page.Params.Audio -}}{{ continue }}{{- end -}}
     <item>{{ with .Title }}
diff --git a/layouts/shortcodes/podcast.html b/layouts/shortcodes/podcast.html
index 1fbf1af0..d3bab66a 100644
--- a/layouts/shortcodes/podcast.html
+++ b/layouts/shortcodes/podcast.html
@@ -9,11 +9,13 @@
     const title = xmlDoc.querySelector('channel title')?.textContent
     const link = xmlDoc.querySelector('channel link')?.textContent
     const description = xmlDoc.querySelector('channel description')?.textContent
+    const image = xmlDoc.querySelector('channel image')?.textContent
     const tracks = [...xmlDoc.querySelectorAll('channel item')].map((item) => ({
       title: item.querySelector('title')?.textContent,
       link: item.querySelector('link')?.textContent,
       artist: title,
       src: item.querySelector('enclosure[type^="audio/"]')?.getAttribute('url'),
+      cover: image,
     })).filter((track) => !!track.src)
 
     return {
diff --git a/static/rss.xsl b/static/rss.xsl
index 9241609c..63f334e6 100644
--- a/static/rss.xsl
+++ b/static/rss.xsl
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet version="3.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd">
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd">
   <xsl:output method="html" version="1.0" encoding="UTF-8" indent="yes"/>
   <xsl:template match="/">
     <xsl:variable name="pageTitle">
@@ -79,12 +79,33 @@
               <p>
                 <xsl:value-of select="/rss/channel/description"/>
               </p>
-              <a hreflang="en" target="_blank">
-                <xsl:attribute name="href">
-                  <xsl:value-of select="/rss/channel/link"/>
-                </xsl:attribute>
-                Visit this page on my site &#x2192;
-              </a>
+              <ul class="open-in">
+                <xsl:if test="/rss/channel/itunes:image">
+                  <li>Use <a hreflang="en" target="_blank">
+                    <xsl:attribute name="href">
+                      <xsl:value-of select="concat('podcast:', /rss/channel/atom:link[@rel='self']/@href)" />
+                    </xsl:attribute>
+                    Apple Podcasts &#x2192;
+                  </a></li>
+                </xsl:if>
+                <xsl:if test="not(/rss/channel/itunes:image)">
+                  <li>Use <a hreflang="en" target="_blank">
+                    <xsl:attribute name="href">
+                      <xsl:value-of select="concat('feed:', /rss/channel/atom:link[@rel='self']/@href)" />
+                    </xsl:attribute>
+                    Your feed reader &#x2192;
+                  </a></li>
+                </xsl:if>
+                <li>
+                  Visit these posts 
+                  <a hreflang="en" target="_blank">
+                    <xsl:attribute name="href">
+                      <xsl:value-of select="/rss/channel/link"/>
+                    </xsl:attribute>
+                    on my site instead &#x2192;
+                  </a>
+                </li>
+              </ul>
             </header>
             <main>
               <h2>Recent Posts</h2>