weirsoe-party-protocol/docs/ISSUE-180-SPA-NEXT-ROUND-FINAL-LEADERBOARD-EVIDENCE.md

Issue #180 Evidence — SPA next-round + final leaderboard

Flow log (Angular SPA)

1. Host reaches reveal phase and runs loadScoreboard() (GET /lobby/sessions/:code/scoreboard).
2. Host can start next round directly in SPA via startNextRound() (POST /lobby/sessions/:code/rounds/next) and then session hydrate (GET /lobby/sessions/:code) without page reload.
3. Host can finish game directly in SPA via finishGame() (POST /lobby/sessions/:code/finish), rendering winner + sorted final leaderboard (plus raw payload for debug) in the same shell.
4. Player SPA renders final leaderboard from refreshed finished-session payload (sorted by score desc, nickname tiebreak) without leaving SPA route.
5. Error/retry paths are implemented and covered:
   • scoreboard failure -> scoreboardError + retry button
   • next-round failure -> nextRoundError + retry button
   • finish-game/final-leaderboard failure -> finishError + retry button

Test evidence

frontend/angular (Vitest)

• src/app/features/host/host-shell.component.spec.ts
  • runs next-round transition without reload and clears scoreboard payload
  • captures finish-game failure for retry and stores final leaderboard on success
• src/app/features/player/player-shell.component.spec.ts
  • builds final leaderboard in finished status without legacy page hop

Result:

• Test Files: 2 passed
• Tests: 9 passed

frontend shared SPA tests (regression)

Result:

• Test Files: 5 passed
• Tests: 24 passed