feat(lobby): canonicalize round phase ownership

2026-03-16 00:44:11 +00:00
parent c43975a1c8
commit a2c60749f8
4 changed files with 410 additions and 98 deletions
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+# Issue #287 — Canonical round-flow backend artifact
+
+## State-transition matrix
+
+| Trigger | From | To | Server-owned effect |
+|---|---|---|---|
+| `POST /lobby/sessions/{code}/rounds/start` | `lobby` | `lie` | Opretter `RoundConfig`, vælger/låser konkret `RoundQuestion`, eksponerer prompt + lie-deadline i samme svar |
+| Sidste gyldige `submit_lie` for aktivt spørgsmål | `lie` | `guess` | Dedupe/shuffle `correct_answer + lies`, persisterer `mixed_answers`, broadcaster `phase.guess_started` |
+| Sidste gyldige `submit_guess` for aktivt spørgsmål | `guess` | `reveal` | Beregner score deterministisk, persisterer `ScoreEvent` + opdaterede `Player.score`, returnerer canonical reveal payload |
+| Første canonical state-read efter resolved reveal (`session_detail`) | `reveal` | `scoreboard` | Promoverer scoreboard som state, broadcaster `phase.scoreboard`, eksponerer leaderboard + readiness |
+| `POST /lobby/sessions/{code}/next` | `scoreboard` | `lobby` | Increment round counter |
+| `POST /lobby/sessions/{code}/finish` | `scoreboard` | `finished` | Fryser slutresultat og returnerer final leaderboard |
+
+## Flow-log (happy path)
+
+1. Host starter runde med kategori.
+2. Server vælger straks spørgsmål og går i `lie`.
+3. Spillere sender løgne; sidste submission auto-advancer til `guess`.
+4. Spillere sender gæt; sidste submission auto-advancer til `reveal` og scorer runden.
+5. Næste `session_detail`-read promoverer resolved reveal til `scoreboard` uden host-knap.
+6. Host kan nu kun vælge `next round` eller `finish game`.