RSS feed returns all entries (unpaginated); db handles limit=0 as unlimited

src/main/java/com/discdrop/db/DatabaseService.java

@@ -224,15 +224,19 @@ public class DatabaseService {
             sql += " AND primary_type IN (" + typePlaceholders + ")";
         }
         sql += " ORDER BY (CASE WHEN first_release_date IS NULL OR first_release_date = '' THEN 1 ELSE 0 END), first_release_date DESC";
-        sql += " LIMIT ? OFFSET ?";
+
+        boolean useLimit = limit > 0;
+        if (useLimit) sql += " LIMIT ? OFFSET ?";
 
         try (Connection conn = getConnection();
              PreparedStatement ps = conn.prepareStatement(sql)) {
             int idx = 1;
             for (var mbid : artistMbids) ps.setString(idx++, mbid);
             for (var type : primaryTypes) ps.setString(idx++, type);
+            if (useLimit) {
                 ps.setInt(idx++, limit + 1);
                 ps.setInt(idx, offset);
+            }
             try (ResultSet rs = ps.executeQuery()) {
                 while (rs.next()) {
                     groups.add(mapReleaseGroup(rs));
@@ -241,7 +245,7 @@ public class DatabaseService {
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }
-        boolean hasMore = groups.size() > limit;
+        boolean hasMore = useLimit && groups.size() > limit;
         if (hasMore) groups.remove(groups.size() - 1);
         return new FeedResult(groups, hasMore);
     }

src/main/java/com/discdrop/service/FeedService.java

@@ -26,8 +26,25 @@ public class FeedService {
 
     public static final int PAGE_SIZE = 20;
 
-    public List<ReleaseGroup> getFeedEntries() {
-        return getFeedEntries(1).entries();
+    public List<ReleaseGroup> getAllFeedEntries() {
+        var artists = artistService.findAll();
+        if (artists.isEmpty()) return List.of();
+
+        var artistMbids = new ArrayList<String>();
+        for (var a : artists) {
+            if (cacheService.needsRefresh(a.mbid())) {
+                var types = getMonitoredTypes(a);
+                releaseGroupService.fetchAndCache(a.mbid(), a.name(), types);
+            }
+            artistMbids.add(a.mbid());
+        }
+
+        var allTypes = List.of("Album", "Single", "EP", "Broadcast", "Other");
+        var monitoredTypes = new ArrayList<String>();
+        for (var a : artists) {
+            monitoredTypes.addAll(getMonitoredTypes(a));
+        }
+        return db.getFeed(artistMbids, monitoredTypes.isEmpty() ? allTypes : monitoredTypes, 0, 0).entries();
     }
 
     public FeedResult getFeedEntries(int page) {

src/main/java/com/discdrop/web/FeedController.java

@@ -22,7 +22,7 @@ public class FeedController {
     @Path("/rss.xml")
     @Produces(MediaType.APPLICATION_XML)
     public Response rssFeed() {
-        var entries = feedService.getFeedEntries();
+        var entries = feedService.getAllFeedEntries();
         var xml = feedBuilder.buildRss(entries);
         return Response.ok(xml, MediaType.APPLICATION_XML).build();
     }