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PROJECT · findings note

project_matchup_page_perfection

Verified audit + prioritized plan to fix the nightlyhoops game details (matchup) page; plan doc lives in nightly-hoops/docs/matchup-page-perfection-plan.md

← All findingssource · memory/project_matchup_page_perfection.md

Highest-leverage confirmed bugs (frontend src/lib/services/picks.ts unless noted):

  • Snapshot enrichment structurally DEAD for WNBA: picks.ts:159 fetches bare /snapshot/{id} with canonId-prefixed wnba_… id → 502/404 always. Same bug class as grading fanout.go:390 (see project_wnba_snapshot_players_regression). AND preview picks carry no player_id, so even a fixed fetch joins nothing without a name→preview.players[]._player_id fallback (picks.ts:353).
  • No pick ever shows a price: debate preview payload has zero odds fields; best_price ?? 0 + showPrice = best_price !== 0 silently hides the column. Meanwhile grading list rows WITH real odds are mapped into card.list (picks.ts:606) and never rendered.
  • narrative (the debate read) is fetched+mapped+never rendered; preview.players[] (86% of payload, 16 player deep-dives) dropped by the mapper.
  • Parlay "Confidence NaN%": parlay_of_day.confidence is the STRING "MEDIUM" passed through picks.ts:487; legs coerce confidence_pct ?? 0 → "0" rings; leg player_name === "TOTAL" renders as fake player row.
  • [internal detail removed]
  • Mapper overwrites short best-bet why with the 200-word essay (picks.ts:463) → walls of text.
  • SEO killer: matchup.ts catch-all returns null → transient debate-v2 blip 404s+deindexes every matchup URL; titles use abbrs ("GSV vs CON") nobody searches.

Why: page reuses the slate card verbatim; every enrichment seam (snapshot, odds, grading, live) was wired but silently broken or unrendered. How to apply: read the plan doc before touching the page; P0 items 3+4 must ship together (fetch fix alone shows zero change). Tip time must come from live-service (SDS start_time is a midnight placeholder — do NOT use).

UPDATE 2026-07-10 (same day): P0 all-9 + P1 1-8 IMPLEMENTED, verified locally vs prod upstreams (WNBA GSV@CON: 60% parlay conf, inherited leg rings 64/63/62, mispriced+Proj pills alive, The read, System board, deep-dives, Update-tab labels; NBA NYK@SAS regression OK incl. Consensus MAJORITY). 8 files in nightly-hoops frontend/src/{lib/services,components/picks}, build+lint green, UNCOMMITTED. Next: commit/deploy, then SEO-1 (matchup.ts re-throw on transient errors) and P2-1 (live-service tip time).