add related links

artist links to feed page (/feed/:ID)
release links to feed xml (release description)

mbz_rss_service/config.py

@@ -68,10 +68,13 @@ class Config:
             backup_path = f"{file_path}.{datetime.now().strftime('%Y%m%d%H%M%S')}.bak"
             shutil.copy(file_path, backup_path)
 
+        logger.debug(f"Saving yaml to {file_path}")
         os.makedirs(os.path.dirname(file_path), exist_ok=True)
         with open(file_path, 'w') as f:
             yaml.dump(data, f, default_flow_style=False, sort_keys=False)
 
+        logger.debug(f"Saved yaml to {file_path}")
+
     @property
     def feeds(self):
         return self._feeds_data.get('feeds', [])
@@ -105,13 +108,16 @@ class Config:
             self._feeds_data['feeds'] = [feed for feed in self.feeds if feed['id'] != feed_id]
             self.save_feeds()
 
-    def add_artist_to_feed(self, feed_id, artist_id, artist_name):
+    def add_artist_to_feed(self, feed_id, artist_id, artist_name, links = None):
         for feed in self.feeds:
             if feed['id'] == feed_id:
                 if 'artists' not in feed:
                     feed['artists'] = []
                 if not any(a['id'] == artist_id for a in feed['artists']):
-                    feed['artists'].append({'id': artist_id, 'name': artist_name})
+                    artist_data = {'id': artist_id, 'name': artist_name}
+                    if links:
+                        artist_data['links'] = links
+                    feed['artists'].append(artist_data)
                     feed['updated_at'] = datetime.now(timezone.utc).isoformat()
                     self.save_feeds()
                 break

mbz_rss_service/main.py

@@ -9,6 +9,8 @@ import os
 import sys
 from . import musicbrainz
 
+XML_CONTENT_TYPE = "application/xml"
+
 log_level_str = os.environ.get('LOG_LEVEL', 'INFO').upper()
 log_level = getattr(logging, log_level_str, logging.INFO)
 log_file = os.path.expandvars(os.environ.get('LOG_FILE', '/var/mbz-rss-feeder/log/mbz-rss-feeder.log'))
@@ -154,7 +156,7 @@ def _check_cache(feed_id):
         try:
             with open(cache_file, 'r') as f:
                 logger.debug(f"Serving cached feed for {feed_id}")
-                return f.read(), {"Content-Type": "application/xml"}
+                return f.read(), {"Content-Type": XML_CONTENT_TYPE}
         except IOError as e:
             logger.warning(f"Could not read cache file {cache_file}: {e}")
 
@@ -195,7 +197,8 @@ def add_artist(feed_id):
     artist_name = request.form.get('artist_name')
     logger.debug(f"Request to add artist '{artist_name}' ({artist_id}) to feed {feed_id}")
     if artist_id and artist_name:
-        config.add_artist_to_feed(feed_id, artist_id, artist_name)
+        meta = musicbrainz.get_artist_meta_by_id(artist_id)
+        config.add_artist_to_feed(feed_id, artist_id, artist_name, meta['links'])
     return redirect(url_for('edit_feed', feed_id=feed_id))
 
 @app.route("/feed/<feed_id>/artist/<artist_id>/remove", methods=["POST"])
@@ -228,7 +231,7 @@ def opml():
     logger.debug("Request for OPML file")
     feeds = config.feeds
     opml_content = render_template('opml.xml', feeds=feeds)
-    return opml_content, {"Content-Type": "application/xml"}
+    return opml_content, {"Content-Type": XML_CONTENT_TYPE}
 
 @app.route('/feed/<feed_id>')
 def get_feed_rss(feed_id):
@@ -277,7 +280,7 @@ def get_feed_rss(feed_id):
     except IOError as e:
         logger.warning(f"Could not write feed '{feed_data['name']}' to cache file {cache_file}: {e}")
 
-    return rss_content, {"Content-Type": "application/xml"}
+    return rss_content, {"Content-Type": XML_CONTENT_TYPE}
 
 @app.route("/health")
 def health_check():

mbz_rss_service/musicbrainz.py

@@ -1,6 +1,6 @@
+import re
 import musicbrainzngs
 import logging
-import os
 from .config import config
 from datetime import datetime
 from email.utils import formatdate
@@ -62,6 +62,10 @@ def _process_release(release, artist_id):
     release_date = release.get('date', 'Unknown')
     _, pub_date = _parse_release_date(release_date, release['title'])
 
+    links = {}
+    if 'url-relation-list' in release:
+        links = get_artist_relation_links(release['url-relation-list'])
+
     return {
         'artist': {
             'name': config.get_artist_name(artist_id),
@@ -72,8 +76,54 @@ def _process_release(release, artist_id):
         'title': release['title'],
         'date': release_date,
         'pub_date': pub_date,
-        'release-group': release.get('release-group', {})
+        'release-group': release.get('release-group', {}),
+        'links': links,
     }
+def get_artist_meta_by_id(artist_id):
+    """get additional meta data about an artist"""
+    meta = {
+        'links': {}
+    }
+    try:
+        logger.debug(f"Fetching artist {artist_id} meta data")
+        # Fetch artist data including URL relations
+        result = musicbrainzngs.get_artist_by_id(artist_id, includes=["url-rels"])
+        artist_data = result.get('artist', {})
+
+        if 'url-relation-list' in artist_data:
+            meta['links'] = get_artist_relation_links(artist_data['url-relation-list'])
+        else:
+            meta['links'] = None
+
+        return meta
+
+    except musicbrainzngs.WebServiceError as exc:
+        logger.error(f"Error fetching artist {artist_id} meta data from MusicBrainz: {exc}")
+
+    return meta
+
+def get_artist_relation_links(relationlist):
+    """Parse and extract named links from a MusicBrainz URL relation list."""
+    links = {}
+    for rel in relationlist:
+        target = rel.get('target')
+        if not target:
+            continue
+        if re.match(r'^https://.*imdb\.com', target):
+            links['IMDb'] = target
+        elif re.match(r'^https://music\.apple\.com', target):
+            links['apple'] = target
+        elif re.match(r'^https://music\.amazon\.com', target):
+            links['amazon'] = target
+        elif re.match(r'^https://open\.spotify\.com', target):
+            links['spotify'] = target
+        elif re.match(r'^https://.*qobuz\.com', target):
+            links['qobuz'] = target
+        elif re.match(r'^https://.*deezer\.com', target):
+            links['deezer'] = target
+        elif re.match(r'^https://.*beatport\.com', target):
+            links['beatport'] = target
+    return links
 
 def get_artist_releases(artist_id):
     """Fetch releases for a given artist ID from MusicBrainz."""
@@ -83,7 +133,7 @@ def get_artist_releases(artist_id):
         result = musicbrainzngs.browse_releases(
             artist=artist_id,
             release_type=['album'],
-            includes=['release-groups']
+            includes=['release-groups', 'url-rels']
         )
         
         releases = []

mbz_rss_service/templates/feed.html

@@ -9,6 +9,11 @@
         {% for artist in feed.artists %}
             <li>
                 {{ artist.name }}
+                {% if artist.links %}
+                    {% for type, link in artist.links.items() %}
+                        <a href="{{ link }}" target="_blank">{{ type }}</a>{% if not loop.last %} | {% endif %}
+                    {% endfor %}
+                {% endif %}
                 <div class="item-actions">
                     <form class="form-inline" action="{{ url_for('remove_artist', feed_id=feed.id, artist_id=artist.id) }}" method="post">
                         <button type="submit">Remove</button>

mbz_rss_service/templates/feed.xml

@@ -14,10 +14,17 @@
             <link>https://musicbrainz.org/release/{{ release.id }}</link>
             <guid isPermaLink="false">{{ release.id }}</guid>
             <description><![CDATA[
+                {% if release.hasCoverArt %}
+                    <img src="https://coverartarchive.org/release/{{ release.id }}/front" alt="Cover Art {{ release.title }}">
+                {% endif %}
                 <p><b>{{ release.artist.name }}</b> <i>{{ release.title }}</i><br>
                 Release Date: {{ release.date }}</p>
-                {% if release.hasCoverArt %}
+                {% if release.links %}
-                    <img src="http://coverartarchive.org/release/{{ release.id }}/front-500" alt="Cover Art {{ release.title }}">
+                <p><b>Links: </b>
+                {% for type, url in release.links.items() %}
+                    <a href="{{ url }}" target="_blank">{{ type | capitalize }}</a>{% if not loop.last %} | {% endif %}
+                {% endfor %}
+                </p>
                 {% endif %}
             ]]></description>
             {% if release.pub_date %}