Extend dismissed-exclusion to mood feeds for consistency

Mood feeds now honor the same dismissed list as the brief: /api/feed accepts an
exclude param (over-fetching to stay full), and the client passes the persisted
dismissed set. Swapping a story away now keeps it gone everywhere — brief and
browse — not just on the home view. Also simplified the feed filter path to the
shared _prefs_sql_kw helper.

Tests: feed exclude (91 total).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/src/routes/+page.svelte

@@ -83,7 +83,8 @@
       } else {
         const mood = moods.find((m) => m.key === key);
         const q = P.param(P.merge(userPrefs, mood?.filter ?? {}));
-        feed = (await getJSON(`/api/feed?limit=24${q ? '&' + q : ''}`)).items;
+        const ex = Array.from(dismissed).join(',');
+        feed = (await getJSON(`/api/feed?limit=24${q ? '&' + q : ''}${ex ? '&exclude=' + ex : ''}`)).items;
         remember(feed);
       }
     } catch (e) {

goodnews/api.py

@@ -261,6 +261,7 @@ def create_app() -> FastAPI:
         limit: int = Query(30, ge=1, le=100),
         offset: int = Query(0, ge=0),
         prefs: str | None = Query(None),
+        exclude: str = Query("", description="comma-separated article ids the reader has dismissed"),
     ) -> FeedResponse:
         if topic and topic.lower() not in TOPICS:
             raise HTTPException(400, f"unknown topic: {topic}")
@@ -268,30 +269,20 @@ def create_app() -> FastAPI:
             raise HTTPException(400, f"unknown flavor: {flavor}")
         fp = prefs_from_json(prefs)
         now = datetime.now(timezone.utc)
+        excl = {int(x) for x in exclude.split(",") if x.strip().lstrip("-").isdigit()}
+        # Categorical filters (include/mute topics+flavors incl. active pauses,
+        # cortisol ceiling) go to SQL so nothing is truncated by ranking. Only
+        # word-boundary avoid-terms and dismissals need a Python pass.
+        kw = _prefs_sql_kw(fp, now)
         with get_conn() as conn:
-            if fp.is_empty():
-                rows = queries.feed(
-                    conn, topic=topic, flavor=flavor, accepted_only=accepted_only, limit=limit, offset=offset
-                )
-            else:
-                # Categorical filters (include/mute topics+flavors incl. active
-                # pauses, cortisol ceiling) go to SQL so nothing is truncated by
-                # ranking. Only word-boundary avoid-terms need a Python pass, so
-                # over-fetch just enough to cover what they might remove.
-                kw = dict(
-                    include_topics=fp.include_topics or None,
-                    include_flavors=fp.include_flavors or None,
-                    mute_topics=list(fp.muted_topics(now)) or None,
-                    mute_flavors=list(fp.muted_flavors(now)) or None,
-                    max_cortisol=fp.max_cortisol,
-                    max_ragebait=fp.max_ragebait,
-                )
-                if fp.avoid_terms:
+            if fp.avoid_terms or excl:
+                # Over-fetch enough to cover what the Python pass might remove.
+                fetch_n = min(2000, (offset + limit) * 4 + 50 + len(excl))
                 raw = queries.feed(
                     conn, topic=topic, flavor=flavor, accepted_only=accepted_only,
-                        limit=min(2000, (offset + limit) * 4 + 50), offset=0, **kw,
+                    limit=fetch_n, offset=0, **kw,
                 )
-                    kept = filter_articles(raw, fp, now)  # drops avoid-term matches
+                kept = [a for a in filter_articles(raw, fp, now) if a["id"] not in excl]
                 rows = kept[offset : offset + limit]
             else:
                 rows = queries.feed(

tests/test_api.py

@@ -74,3 +74,9 @@ def test_brief_filters_down_without_refill(client):
 def test_category_counts_match_filtered_feed(client):
     counts = client.get("/api/category-counts", params={"prefs": json.dumps({"mute_topics": ["health"]})}).json()
     assert all(c["topic"] != "health" for c in counts)
+
+
+def test_feed_excludes_dismissed(client):
+    r = client.get("/api/feed", params={"exclude": "1"})
+    ids = [i["id"] for i in r.json()["items"]]
+    assert 1 not in ids