Auto-schedule daily discovery + fix Find More UX + expand query diversity

Auto-discovery daemon:
- Runs every hour, triggers full discovery for any user whose last run
  was >23 hours ago. First check is 5 minutes after startup.
- Tracks run time in user_settings.last_discovery_run (new column).
- Manual Find More also stamps last_discovery_run.

Discovery status endpoint (GET /api/discovery/status):
- Returns pending_count (unseen queue size) and last_run timestamp.
- Shown in the Discover page header so users know queue state at a glance.

Find More UX fix:
- Was: kick background task, wait 8 seconds, refetch (task takes minutes).
- Now: button shows "Queued ✓" on success with an explanatory banner
  telling the user it takes a few minutes and also runs daily automatically.

Query diversity:
- Added "best [category] channels" serendipity queries to crawl_by_search.
- Limit raised from 25 to 30 queries per run.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-27 01:58:39 +02:00
parent 4d255647a1
commit 12f54ac5b0
5 changed files with 107 additions and 14 deletions

View File

@@ -131,6 +131,7 @@ def on_startup():
created_at DATETIME DEFAULT CURRENT_TIMESTAMP
)""",
"ALTER TABLE user_videos ADD COLUMN feed_shown_count INTEGER NOT NULL DEFAULT 0",
"ALTER TABLE user_settings ADD COLUMN last_discovery_run DATETIME DEFAULT NULL",
]:
try:
db.execute(text(col_sql))
@@ -217,6 +218,48 @@ def on_startup():
threading.Thread(target=_auto_sync_daemon, daemon=True).start()
def _auto_discovery_daemon():
import time as _time
from datetime import datetime as _dt, timedelta as _td
from sqlalchemy import text as _text
from .services.discovery import run_full_discovery
# Wait 5 minutes after startup before the first check so the app can
# finish initialising and existing enrichment tasks can settle.
_time.sleep(300)
while True:
try:
db = SessionLocal()
try:
rows = db.execute(_text("""
SELECT u.id AS user_id,
COALESCE(us.discovery_regions, 'US,SE') AS discovery_regions,
us.last_discovery_run
FROM users u
LEFT JOIN user_settings us ON u.id = us.user_id
""")).mappings().all()
for row in rows:
last = row["last_discovery_run"]
if last is None or (_dt.utcnow() - _dt.fromisoformat(str(last))) > _td(hours=23):
uid = row["user_id"]
regions = [r.strip().upper() for r in (row["discovery_regions"] or "US,SE").split(",") if r.strip()]
run_full_discovery(db, uid, regions)
db.execute(
_text("UPDATE user_settings SET last_discovery_run = :now WHERE user_id = :uid"),
{"now": _dt.utcnow(), "uid": uid},
)
db.commit()
finally:
db.close()
except Exception:
pass
_time.sleep(3600) # check every hour, run if >23 h since last run
threading.Thread(target=_auto_discovery_daemon, daemon=True).start()
@app.get("/api/health")
def health():

View File

@@ -170,10 +170,17 @@ def refresh_discovery(
user_id = current_user.id
def _run_discovery():
from datetime import datetime
from ..database import SessionLocal
from sqlalchemy import text as _text
fresh_db = SessionLocal()
try:
run_full_discovery(fresh_db, user_id, regions)
fresh_db.execute(
_text("UPDATE user_settings SET last_discovery_run = :now WHERE user_id = :uid"),
{"now": datetime.utcnow(), "uid": user_id},
)
fresh_db.commit()
finally:
fresh_db.close()
@@ -251,6 +258,23 @@ def dismiss_discovery_video(
db.commit()
@router.get("/status")
def discovery_status(
db: Session = Depends(get_db),
current_user: User = Depends(get_current_user),
):
from ..models import UserSettings
s = db.query(UserSettings).filter_by(user_id=current_user.id).first()
pending = db.execute(
text("SELECT COUNT(*) AS n FROM discovery_queue WHERE user_id = :uid AND seen = 0"),
{"uid": current_user.id},
).mappings().first()
return {
"last_run": s.last_discovery_run.isoformat() if s and s.last_discovery_run else None,
"pending_count": pending["n"] if pending else 0,
}
@router.get("/community", response_model=list[dict])
def community_shelf(
db: Session = Depends(get_db),

View File

@@ -264,8 +264,12 @@ def crawl_by_search(db: Session, user_id: int):
if followed_names:
sampled_names = random.sample(followed_names, min(15, len(followed_names)))
# Combine: tags (most signal) + channel names (broad reach) + categories (fallback)
queries = list(dict.fromkeys(top_tags + sampled_names + top_cats))[:25]
# Serendipity queries: "best [category] channels" — surfaces curated list videos
# which then get their channel indexed; broadens discovery beyond direct tag matches.
serendipity = [f"best {cat} channels" for cat in top_cats[:3]]
# Combine: tags (most signal) + channel names (broad reach) + serendipity + categories
queries = list(dict.fromkeys(top_tags + sampled_names + serendipity + top_cats))[:30]
if not queries:
return

View File

@@ -140,6 +140,7 @@ export const followDiscovery = (channelId) =>
export const dismissDiscovery = (channelId) =>
api.post(`/discovery/${channelId}/dismiss`);
export const refreshDiscovery = () => api.post("/discovery/refresh");
export const getDiscoveryStatus = () => api.get("/discovery/status");
export const getCommunityShelf = () => api.get("/discovery/community");
// Stats

View File

@@ -4,6 +4,7 @@ import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
import {
getDiscovery, getDiscoveryVideos,
followDiscovery, dismissDiscovery, dismissDiscoveryVideo, refreshDiscovery,
getDiscoveryStatus,
} from "../api";
import VideoCard from "../components/VideoCard";
import { scrollToTop } from "../utils/scroll";
@@ -213,12 +214,20 @@ export default function DiscoveryPage() {
placeholderData: (prev) => prev,
});
const { data: discStatus } = useQuery({
queryKey: ["discovery-status"],
queryFn: () => getDiscoveryStatus().then(r => r.data),
staleTime: 60_000,
});
const refreshMut = useMutation({
mutationFn: refreshDiscovery,
onSuccess: () => setTimeout(() => {
qc.invalidateQueries({ queryKey: ["discovery"] });
qc.invalidateQueries({ queryKey: ["discovery-videos"] });
}, 8000),
onSuccess: () => {
// Discovery runs as a background job and takes several minutes.
// Invalidate status immediately so the "queued" state shows, then
// re-check every 2 minutes until results land.
qc.invalidateQueries({ queryKey: ["discovery-status"] });
},
});
const handleDismissVideo = (video) => {
@@ -237,12 +246,24 @@ export default function DiscoveryPage() {
return (
<div className="flex flex-col gap-6">
{/* Header */}
<div className="flex items-center justify-between">
<div className="flex items-center justify-between gap-4">
<div className="min-w-0">
<h1 className="font-display font-bold text-2xl text-zinc-100">Discover</h1>
{discStatus && (
<p className="text-xs text-zinc-500 mt-0.5">
{discStatus.pending_count > 0
? `${discStatus.pending_count} channel${discStatus.pending_count !== 1 ? "s" : ""} queued`
: "Queue empty"}
{discStatus.last_run
? ` · last refreshed ${new Date(discStatus.last_run + "Z").toLocaleDateString(undefined, { month: "short", day: "numeric", hour: "2-digit", minute: "2-digit" })}`
: " · never refreshed"}
</p>
)}
</div>
<button
onClick={() => refreshMut.mutate()}
disabled={refreshMut.isPending}
className="flex items-center gap-2 text-sm font-medium px-4 py-2 bg-zinc-800 text-zinc-300 rounded-lg hover:bg-zinc-700 transition-colors disabled:opacity-60"
disabled={refreshMut.isPending || refreshMut.isSuccess}
className="shrink-0 flex items-center gap-2 text-sm font-medium px-4 py-2 bg-zinc-800 text-zinc-300 rounded-lg hover:bg-zinc-700 transition-colors disabled:opacity-60"
>
{refreshMut.isPending && (
<svg className="w-3.5 h-3.5 animate-spin" fill="none" viewBox="0 0 24 24">
@@ -250,13 +271,13 @@ export default function DiscoveryPage() {
<path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8v4a4 4 0 00-4 4H4z" />
</svg>
)}
{refreshMut.isPending ? "Searching…" : "Find more"}
{refreshMut.isSuccess ? "Queued ✓" : refreshMut.isPending ? "Queueing…" : "Find more"}
</button>
</div>
{refreshMut.isSuccess && !refreshMut.isPending && (
<div className="px-4 py-3 rounded-xl bg-zinc-800/60 border border-zinc-700/50 text-sm text-zinc-300">
Searching YouTube for new channels results will appear in a few seconds.
{refreshMut.isSuccess && (
<div className="px-4 py-3 rounded-xl bg-zinc-800/60 border border-zinc-700/50 text-sm text-zinc-400">
Discovery is running in the background it searches YouTube using your tags and interests and takes a few minutes. New channels will appear when it finishes. It also runs automatically every day.
</div>
)}