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fix(feed): repair 2 bugs found in the Phase 2 #2 review

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BUG-1 (search.py, high): the scrape search source logged one VIDEOS_SEARCH
quota event PER continuation page inside the paging loop, but actions_today
counts events — so a single user search that pages N times consumed N against
search_daily_limit_per_user (its docstring even warns it only works for
once-per-action logging). Log exactly once per request after the loop instead;
the API source already logs once via record_usage (it never auto-pages).

BUG-2 (Feed.tsx, medium): the optimistic-override reset effect keyed on
query.dataUpdatedAt also fired on fetchNextPage (infinite scroll bumps
dataUpdatedAt while page 1 is unchanged), so a just-hidden card flashed back
mid-scroll. Guard with a page-count ref: only reset on a real refetch, not an
append. The two override-reset effects legitimately differ now (resolves the
would-be C-F1 "identical effects" cleanup).

tsc green, ruff clean, localdev boots healthy.
This commit is contained in:
npeter83 2026-07-11 17:43:18 +02:00
parent 3cbb420ece
commit 94417ada72
2 changed files with 19 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

10
backend/app/routes/search.py
View file

@ -253,8 +253,6 @@ def search_youtube(
page = yt.search_videos(term, page_token=next_cursor)
else:
page = search_scrape.search(term, continuation=next_cursor)
# Zero-cost, but logged so the per-user daily cap above keeps counting it.
quota.log_action(db, user.id, quota.QuotaAction.VIDEOS_SEARCH)
except (YouTubeError, search_scrape.ScrapeError) as exc:
if collected:
break # keep what we already gathered
@ -274,6 +272,14 @@ def search_youtube(
if source == "api" or len(collected) >= limit or not next_cursor:
break
# Count this as ONE per-user search against the daily cap. The scrape source spends no
# quota, so it never logs an event on its own; the API source already logged exactly one
# (via record_usage — it never auto-pages). Logging once here, after a search that produced
# at least one page (a total failure raises 502 above and never reaches this), keeps the cap
# counting user searches instead of internal continuation pages.
if source != "api":
quota.log_action(db, user.id, quota.QuotaAction.VIDEOS_SEARCH)
ordered = collected[:limit]
if ordered: