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Expand discovery pool and remove header logo

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Double search results per query (20→40), increase query budget (15→25),
use more tags per signal (6→10-12), index more new channels per refresh
(5→10). Remove the YT logo from the header.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Mattias Thall
2026-05-26 21:55:52 +02:00
parent 52279752e4
commit 62c2c73906
2 changed files with 9 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
backend/services/discovery.py
View File

@@ -106,7 +106,7 @@ def _search_and_store(
discovered: dict[str, dict] = {} discovered: dict[str, dict] = {}
for query in queries: for query in queries:
try: try:
results = ytdlp.search_youtube(query, max_results=20) results = ytdlp.search_youtube(query, max_results=40)
for video in results: for video in results:
ch = video.get("channel", {}) ch = video.get("channel", {})
yt_id = ch.get("youtube_channel_id") yt_id = ch.get("youtube_channel_id")
@@ -176,7 +176,7 @@ def _search_and_store(
db.commit() db.commit()
for channel_id in needs_indexing[:5]: for channel_id in needs_indexing[:10]:
channel = db.query(Channel).filter_by(id=channel_id).first() channel = db.query(Channel).filter_by(id=channel_id).first()
if channel: if channel:
_fetch_and_index_channel(db, channel) _fetch_and_index_channel(db, channel)
@@ -251,16 +251,16 @@ def crawl_by_search(db: Session, user_id: int):
).mappings().all() ).mappings().all()
# Build query pool: top tags + random channel names + categories # Build query pool: top tags + random channel names + categories
top_tags = [t for t, _ in sorted(tag_counts.items(), key=lambda x: -x[1])[:6]] top_tags = [t for t, _ in sorted(tag_counts.items(), key=lambda x: -x[1])[:12]]
top_cats = [r["category"] for r in cat_rows] top_cats = [r["category"] for r in cat_rows]
# Random sample of followed channel names — diversifies discovery each run # Random sample of followed channel names — diversifies discovery each run
sampled_names: list[str] = [] sampled_names: list[str] = []
if followed_names: if followed_names:
sampled_names = random.sample(followed_names, min(8, len(followed_names))) sampled_names = random.sample(followed_names, min(15, len(followed_names)))
# Combine: tags (most signal) + channel names (broad reach) + categories (fallback) # Combine: tags (most signal) + channel names (broad reach) + categories (fallback)
queries = list(dict.fromkeys(top_tags + sampled_names + top_cats))[:15] queries = list(dict.fromkeys(top_tags + sampled_names + top_cats))[:25]
if not queries: if not queries:
return return
@@ -380,7 +380,7 @@ def update_liked_signal(db: Session, user_id: int):
{"user_id": user_id}, {"user_id": user_id},
).scalars().all()) ).scalars().all())
top_tags = [t for t, _ in sorted(tag_counts.items(), key=lambda x: -x[1])[:6]] top_tags = [t for t, _ in sorted(tag_counts.items(), key=lambda x: -x[1])[:10]]
neg_tags = frozenset( neg_tags = frozenset(
r["tag"] for r in db.execute( r["tag"] for r in db.execute(
text("SELECT tag FROM user_tag_affinity WHERE user_id = :user_id AND score < -2"), text("SELECT tag FROM user_tag_affinity WHERE user_id = :user_id AND score < -2"),
@@ -440,7 +440,7 @@ def update_watch_signal(db: Session, user_id: int):
{"user_id": user_id}, {"user_id": user_id},
).scalars().all()) ).scalars().all())
top_tags = [t for t, _ in sorted(qualified.items(), key=lambda x: -x[1])[:6]] top_tags = [t for t, _ in sorted(qualified.items(), key=lambda x: -x[1])[:10]]
neg_tags = frozenset( neg_tags = frozenset(
r["tag"] for r in db.execute( r["tag"] for r in db.execute(
text("SELECT tag FROM user_tag_affinity WHERE user_id = :user_id AND score < -2"), text("SELECT tag FROM user_tag_affinity WHERE user_id = :user_id AND score < -2"),
@@ -571,7 +571,7 @@ def update_trending_signal(db: Session, user_id: int, regions: list[str]):
db.commit() db.commit()
for channel_id in needs_indexing[:5]: for channel_id in needs_indexing[:10]:
channel = db.query(Channel).filter_by(id=channel_id).first() channel = db.query(Channel).filter_by(id=channel_id).first()
if channel: if channel:
_fetch_and_index_channel(db, channel) _fetch_and_index_channel(db, channel)

11
frontend/src/components/Layout.jsx
View File

@@ -1,4 +1,4 @@
import { Outlet, NavLink, useNavigate, Link, useLocation } from "react-router-dom"; import { Outlet, NavLink, Link, useLocation } from "react-router-dom";
import { useQuery } from "@tanstack/react-query"; import { useQuery } from "@tanstack/react-query";
import { useAuth } from "../hooks/useAuth"; import { useAuth } from "../hooks/useAuth";
import SearchBar from "./SearchBar"; import SearchBar from "./SearchBar";
@@ -203,7 +203,6 @@ function useNewVideosCount() {
export default function Layout() { export default function Layout() {
const { user, logout } = useAuth(); const { user, logout } = useAuth();
const navigate = useNavigate();
const newCount = useNewVideosCount(); const newCount = useNewVideosCount();
return ( return (
@@ -211,14 +210,6 @@ export default function Layout() {
{/* Header */} {/* Header */}
<header className="shrink-0 z-40 bg-zinc-950/90 backdrop-blur border-b border-zinc-800"> <header className="shrink-0 z-40 bg-zinc-950/90 backdrop-blur border-b border-zinc-800">
<div className="max-w-screen-xl mx-auto px-3 h-12 sm:h-14 flex items-center gap-2 sm:gap-4"> <div className="max-w-screen-xl mx-auto px-3 h-12 sm:h-14 flex items-center gap-2 sm:gap-4">
{/* Logo */}
<button
onClick={() => navigate("/")}
className="font-display font-bold text-base sm:text-lg text-zinc-100 shrink-0 tracking-tight"
>
YT
</button>
{/* Search — min-w-0 prevents it from overflowing on narrow screens */} {/* Search — min-w-0 prevents it from overflowing on narrow screens */}
<div className="flex-1 min-w-0"> <div className="flex-1 min-w-0">
<SearchBar /> <SearchBar />