Files
SkinsPins/app/routers/games.py
T
Rolf 3e98f5ae54 Import gender tees + front/back split ratings; front/back/9 hole selection
Course import now fetches both male and female tees, each with their own
per-tee stroke indices extracted from the holes array. Front and back 9
slope/rating are stored per tee for more accurate WHS handicap calculation.

New game creation replaces the 9/18 radio with a course-aware selector:
18-hole courses offer 18 holes, Front 9, or Back 9; 9-hole courses auto-
select. start_hole is stored on the game and used throughout scoring,
handicap calculation, and scorecard rendering.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-23 22:37:20 +01:00

564 lines
26 KiB
Python
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import json
import secrets
from datetime import datetime, timezone
import aiosqlite
from fastapi import APIRouter, Depends, Form, Request, WebSocket, WebSocketDisconnect
from fastapi.responses import HTMLResponse, RedirectResponse
from app.database import get_db, DATABASE_PATH
from app.dependencies import get_current_user
from app.templates_config import templates
router = APIRouter()
# game_id -> set of connected websockets
_connections: dict[str, set[WebSocket]] = {}
# ── Helpers ──────────────────────────────────────────────────────────────────
async def _get_game(game_id: str, db: aiosqlite.Connection):
async with db.execute(
"""SELECT g.*, c.name as course_name
FROM games g LEFT JOIN courses c ON c.id = g.course_id
WHERE g.id = ?""",
(game_id,),
) as c:
return await c.fetchone()
async def _get_players(game_id: str, db: aiosqlite.Connection):
async with db.execute(
"""SELECT u.id, u.name, u.avatar, gp.handicap_snapshot,
gp.playing_handicap, gp.strokes_allocation,
ct.slope, ct.rating as tee_rating, ct.name as tee_name
FROM game_players gp JOIN users u ON gp.user_id = u.id
LEFT JOIN course_tees ct ON ct.id = gp.tee_id
WHERE gp.game_id = ? ORDER BY gp.joined_at""",
(game_id,),
) as c:
rows = [dict(r) for r in await c.fetchall()]
for p in rows:
raw = p.get("strokes_allocation")
p["strokes_allocation"] = {int(k): v for k, v in json.loads(raw).items()} if raw else {}
return rows
async def _get_scores(game_id: str, db: aiosqlite.Connection):
"""Returns {hole_number: {user_id: score_row}}"""
async with db.execute(
"SELECT * FROM hole_scores WHERE game_id = ?", (game_id,)
) as c:
rows = await c.fetchall()
scores: dict[int, dict] = {}
for r in rows:
h = r["hole_number"]
if h not in scores:
scores[h] = {}
scores[h][r["user_id"]] = dict(r)
return scores
async def _broadcast(game_id: str, message: dict):
dead = set()
for ws in _connections.get(game_id, set()):
try:
await ws.send_text(json.dumps(message))
except Exception:
dead.add(ws)
_connections.get(game_id, set()).difference_update(dead)
def _strokes_per_hole(players: list, holes: list, hole_stroke_indices: dict) -> dict:
"""Fallback: compute strokes-per-hole from playing_handicap + stroke indices."""
played_with_si = {h: hole_stroke_indices[h] for h in holes if h in hole_stroke_indices}
if not played_with_si:
return {}
n_si = len(played_with_si)
sorted_holes = sorted(played_with_si, key=lambda h: played_with_si[h])
hole_rank = {h: rank + 1 for rank, h in enumerate(sorted_holes)}
result = {}
for p in players:
ph = p.get("playing_handicap")
if ph is not None and ph > 0:
base, extra = divmod(ph, n_si)
result[p["id"]] = {h: base + (1 if hole_rank[h] <= extra else 0)
for h in holes if h in played_with_si}
return result
def _calc_skins(players: list, scores: dict, holes: list, carryover: bool = True,
skin_value: float | None = None, skin_double_back9: bool = False,
strokes_per_hole: dict | None = None):
"""Returns (skins_per_player, hole_results, unclaimed_pot, money_per_player, unclaimed_money)
money_per_player is None when skin_value is not set.
strokes_per_hole is {uid: {hole: strokes}} for net scoring."""
skins = {p["id"]: 0 for p in players}
money = {p["id"]: 0.0 for p in players}
hole_results = {}
pot = 0
money_pot = 0.0
for hole in holes:
raw = {uid: s["strokes"] for uid, s in scores.get(hole, {}).items() if s.get("strokes")}
if strokes_per_hole:
scored = {uid: g - (strokes_per_hole.get(uid) or {}).get(hole, 0) for uid, g in raw.items()}
else:
scored = raw
if not scored:
continue
pot += 1
if skin_value:
money_pot += skin_value * (2 if skin_double_back9 and hole >= 10 else 1)
min_score = min(scored.values())
winners = [uid for uid, s in scored.items() if s == min_score]
if len(winners) == 1:
skins[winners[0]] += pot
money[winners[0]] += money_pot
hole_results[hole] = {"winner": winners[0], "pot": pot, "min_score": min_score, "money_pot": money_pot}
pot = 0
money_pot = 0.0
else:
hole_results[hole] = {"winner": None, "pot": pot, "min_score": min_score, "money_pot": money_pot}
if not carryover:
pot = 0
money_pot = 0.0
return skins, hole_results, pot, (money if skin_value else None), money_pot
def _totals(players: list, scores: dict) -> dict:
"""Returns {user_id: {bingo, bango, bongo, total}}"""
totals = {p["id"]: {"bingo": 0, "bango": 0.0, "bongo": 0, "total": 0.0} for p in players}
for hole_scores in scores.values():
for uid, s in hole_scores.items():
if uid in totals:
totals[uid]["bingo"] += s["bingo"]
totals[uid]["bango"] += s["bango"]
totals[uid]["bongo"] += s["bongo"]
totals[uid]["total"] += s["bingo"] + s["bango"] + s["bongo"]
return totals
# ── Routes ────────────────────────────────────────────────────────────────────
@router.get("/games", response_class=HTMLResponse)
async def games_list(request: Request, user: dict = Depends(get_current_user),
db: aiosqlite.Connection = Depends(get_db)):
async with db.execute(
"""SELECT g.id, g.holes_count, g.status, g.created_at, g.format, g.carryover,
u.name as creator_name, c.name as course_name
FROM games g JOIN users u ON g.created_by = u.id
LEFT JOIN courses c ON c.id = g.course_id
WHERE g.id IN (SELECT game_id FROM game_players WHERE user_id = ?)
ORDER BY g.created_at DESC LIMIT 20""",
(user["id"],),
) as c:
games = [dict(r) for r in await c.fetchall()]
# For completed BBB games, find the winner (highest total points)
async with db.execute(
"""SELECT hs.game_id, u.name, u.avatar,
SUM(hs.bingo + hs.bango + hs.bongo) AS total
FROM hole_scores hs JOIN users u ON hs.user_id = u.id
WHERE hs.game_id IN (SELECT id FROM games WHERE status = 'completed' AND format = 'bingo_bango_bongo')
GROUP BY hs.game_id, hs.user_id
ORDER BY hs.game_id, total DESC""",
) as c:
rows = await c.fetchall()
# Keep only the top scorer per game
winners: dict[str, dict] = {}
for r in rows:
if r["game_id"] not in winners:
winners[r["game_id"]] = {"name": r["name"], "avatar": r["avatar"], "total": r["total"]}
# For completed skins games, calculate winner via skins algorithm
for g in games:
if g["status"] == "completed" and g["format"] == "skins":
gid = g["id"]
players_g = await _get_players(gid, db)
scores_g = await _get_scores(gid, db)
holes_g = list(range(1, g["holes_count"] + 1))
skins_g, _, _, _, _ = _calc_skins(players_g, scores_g, holes_g, bool(g["carryover"]))
if skins_g:
winner_id = max(skins_g, key=skins_g.get)
if skins_g[winner_id] > 0:
wp = next((p for p in players_g if p["id"] == winner_id), None)
if wp:
winners[gid] = {"name": wp["name"], "avatar": wp["avatar"], "total": skins_g[winner_id]}
return templates.TemplateResponse(
"games/games.html", {"request": request, "user": user, "games": games, "winners": winners}
)
@router.get("/games/new", response_class=HTMLResponse)
async def new_game_page(request: Request, user: dict = Depends(get_current_user),
db: aiosqlite.Connection = Depends(get_db)):
async with db.execute(
"SELECT id, name, avatar, handicap FROM users WHERE is_onboarded = 1 ORDER BY name"
) as c:
all_users = [dict(r) for r in await c.fetchall()]
async with db.execute(
"SELECT c.id, c.name, c.holes, c.location, COALESCE((SELECT SUM(par) FROM course_holes WHERE course_id=c.id),0) AS par, COALESCE((SELECT SUM(par) FROM course_holes WHERE course_id=c.id AND hole_number<=9),0) AS par_9 FROM courses c ORDER BY c.name"
) as c:
courses = [dict(r) for r in await c.fetchall()]
async with db.execute(
"SELECT id, course_id, name, slope, rating, gender, front_slope, front_rating, back_slope, back_rating FROM course_tees ORDER BY course_id, gender, name"
) as c:
tee_rows = [dict(r) for r in await c.fetchall()]
# Group tees by course_id for JSON embed in template
tees_by_course: dict[str, list] = {}
for t in tee_rows:
tees_by_course.setdefault(t["course_id"], []).append(
{"id": t["id"], "name": t["name"], "slope": t["slope"], "rating": t["rating"],
"gender": t["gender"], "front_slope": t["front_slope"], "front_rating": t["front_rating"],
"back_slope": t["back_slope"], "back_rating": t["back_rating"]}
)
return templates.TemplateResponse(
"games/new_game.html",
{"request": request, "user": user, "all_users": all_users,
"courses": courses, "tees_by_course": tees_by_course},
)
VALID_FORMATS = {"bingo_bango_bongo", "skins"}
@router.post("/games/new")
async def create_game(request: Request, holes_count: int = Form(...),
course_id: str = Form(...),
format: str = Form("bingo_bango_bongo"),
user: dict = Depends(get_current_user),
db: aiosqlite.Connection = Depends(get_db)):
form = await request.form()
player_ids = form.getlist("players")
if format not in VALID_FORMATS:
format = "bingo_bango_bongo"
if user["id"] not in player_ids:
player_ids.insert(0, user["id"])
async with db.execute(
"SELECT c.id, c.name, c.holes, c.location, COALESCE((SELECT SUM(par) FROM course_holes WHERE course_id=c.id),0) AS par, COALESCE((SELECT SUM(par) FROM course_holes WHERE course_id=c.id AND hole_number<=9),0) AS par_9 FROM courses c ORDER BY c.name"
) as c:
courses = [dict(r) for r in await c.fetchall()]
error = None
if len(player_ids) < 2:
error = "Select at least 2 players."
if not course_id or not any(c["id"] == course_id for c in courses):
error = error or "Select a course."
if not error:
async with db.execute(
"SELECT id FROM course_tees WHERE course_id = ? LIMIT 1", (course_id,)
) as c:
has_tees = await c.fetchone()
if has_tees and any(not form.get(f"tee_{uid}") for uid in player_ids):
error = "All players must select a tee."
if error:
async with db.execute(
"SELECT id, name, avatar, handicap FROM users WHERE is_onboarded = 1 ORDER BY name"
) as c:
all_users = [dict(r) for r in await c.fetchall()]
async with db.execute(
"SELECT id, course_id, name, slope, rating, gender, front_slope, front_rating, back_slope, back_rating FROM course_tees ORDER BY course_id, gender, name"
) as c:
tee_rows = [dict(r) for r in await c.fetchall()]
tees_by_course: dict[str, list] = {}
for t in tee_rows:
tees_by_course.setdefault(t["course_id"], []).append(
{"id": t["id"], "name": t["name"], "slope": t["slope"], "rating": t["rating"],
"gender": t["gender"], "front_slope": t["front_slope"], "front_rating": t["front_rating"],
"back_slope": t["back_slope"], "back_rating": t["back_rating"]}
)
return templates.TemplateResponse(
"games/new_game.html",
{"request": request, "user": user, "all_users": all_users,
"courses": courses, "tees_by_course": tees_by_course, "error": error},
)
game_id = secrets.token_urlsafe(10)
now = datetime.now(timezone.utc).isoformat()
start_hole_raw = form.get("start_hole", "1")
start_hole = int(start_hole_raw) if start_hole_raw in ("1", "10") else 1
carryover = 1 if form.get("carryover") == "1" else 0
skin_value_str = (form.get("skin_value") or "").strip()
skin_value = float(skin_value_str) if skin_value_str else None
skin_double_back_nine = 1 if form.get("skin_double_back_nine") == "1" else 0
skins_net = 1 if form.get("skins_net") == "1" else 0
side_skins_enabled = 1 if form.get("side_skins_enabled") == "1" else 0
await db.execute(
"INSERT INTO games (id, format, holes_count, start_hole, status, created_by, created_at, course_id, carryover, skin_value, skin_double_back_nine, skins_net, side_skins_enabled) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)",
(game_id, format, holes_count, start_hole, "active", user["id"], now, course_id, carryover, skin_value, skin_double_back_nine, skins_net, side_skins_enabled),
)
# Pre-fetch course holes for handicap calculation
course_par_played = 0 # par for the actual holes being played
course_total_holes = holes_count # assume matches unless we find otherwise
hole_stroke_indices: dict[int, int] = {}
if course_id:
async with db.execute("SELECT holes FROM courses WHERE id = ?", (course_id,)) as c:
cr = await c.fetchone()
if cr:
course_total_holes = cr["holes"]
async with db.execute(
"SELECT hole_number, par, stroke_index FROM course_holes WHERE course_id = ? ORDER BY hole_number",
(course_id,),
) as c:
for row in await c.fetchall():
h = row["hole_number"]
if start_hole <= h < start_hole + holes_count:
course_par_played += row["par"] or 0
if row["stroke_index"] is not None:
hole_stroke_indices[h] = row["stroke_index"]
nine_of_eighteen = (holes_count == 9 and course_total_holes == 18)
nine_hole_dedicated = (holes_count == 9 and not nine_of_eighteen)
is_back_nine = nine_of_eighteen and start_hole == 10
played_holes = list(range(start_hole, start_hole + holes_count))
# Fallback formula for 9-of-18 without split ratings: compute 18-hole CH then halve.
# Use played-par×2 as estimated 18-hole par.
par_for_formula = course_par_played * 2 if nine_of_eighteen else course_par_played
for uid in player_ids:
async with db.execute("SELECT handicap FROM users WHERE id = ?", (uid,)) as c:
row = await c.fetchone()
hc = row["handicap"] if row else None
tee_id = form.get(f"tee_{uid}") or None
tee_row = None
if tee_id:
async with db.execute(
"SELECT slope, rating, stroke_indices, front_slope, front_rating, back_slope, back_rating FROM course_tees WHERE id = ?",
(tee_id,),
) as c:
tee_row = await c.fetchone()
playing_handicap = None
strokes_allocation_json = None
if hc is not None and tee_row and par_for_formula:
if is_back_nine and tee_row["back_slope"] and tee_row["back_rating"]:
# Back 9 specific ratings available — use directly
ph = round(hc * (tee_row["back_slope"] / 113) + (tee_row["back_rating"] - course_par_played))
playing_handicap = ph
elif nine_of_eighteen and not is_back_nine and tee_row["front_slope"] and tee_row["front_rating"]:
# Front 9 specific ratings available — use directly
ph = round(hc * (tee_row["front_slope"] / 113) + (tee_row["front_rating"] - course_par_played))
playing_handicap = ph
else:
hc_for_formula = hc / 2 if nine_hole_dedicated else hc
ph = round(hc_for_formula * (tee_row["slope"] / 113) + (tee_row["rating"] - par_for_formula))
playing_handicap = round(ph / 2) if nine_of_eighteen else ph
# Per-tee stroke indices take priority over course-level fallback
if tee_row["stroke_indices"]:
raw = json.loads(tee_row["stroke_indices"])
player_si = {int(k): v for k, v in raw.items()}
else:
player_si = hole_stroke_indices
played_with_si_p = {h: player_si[h] for h in played_holes if h in player_si}
if played_with_si_p and playing_handicap > 0:
n_si_p = len(played_with_si_p)
sorted_holes_p = sorted(played_with_si_p, key=lambda h: played_with_si_p[h])
hole_rank_p = {h: rank + 1 for rank, h in enumerate(sorted_holes_p)}
base, extra = divmod(playing_handicap, n_si_p)
allocation = {str(h): base + (1 if hole_rank_p[h] <= extra else 0)
for h in played_holes if h in played_with_si_p}
strokes_allocation_json = json.dumps(allocation)
await db.execute(
"INSERT OR IGNORE INTO game_players (id, game_id, user_id, handicap_snapshot, tee_id, joined_at, playing_handicap, strokes_allocation) VALUES (?,?,?,?,?,?,?,?)",
(secrets.token_urlsafe(10), game_id, uid, hc, tee_id, now, playing_handicap, strokes_allocation_json),
)
await db.commit()
return RedirectResponse(f"/games/{game_id}", status_code=302)
@router.get("/games/{game_id}/summary", response_class=HTMLResponse)
async def game_summary(game_id: str, request: Request, user: dict = Depends(get_current_user),
db: aiosqlite.Connection = Depends(get_db)):
game = await _get_game(game_id, db)
if not game:
return RedirectResponse("/games", status_code=302)
players = await _get_players(game_id, db)
scores = await _get_scores(game_id, db)
totals = _totals(players, scores)
start_hole = game["start_hole"] if game["start_hole"] else 1
holes = list(range(start_hole, start_hole + game["holes_count"]))
hole_pars: dict[int, int] = {}
hole_stroke_indices: dict[int, int] = {}
if game["course_id"]:
async with db.execute(
"SELECT hole_number, par, stroke_index FROM course_holes WHERE course_id = ? ORDER BY hole_number",
(game["course_id"],),
) as c:
for row in await c.fetchall():
hole_pars[row["hole_number"]] = row["par"]
if row["stroke_index"] is not None:
hole_stroke_indices[row["hole_number"]] = row["stroke_index"]
playing_handicaps = {p["id"]: p.get("playing_handicap") for p in players}
computed = _strokes_per_hole(players, holes, hole_stroke_indices)
strokes_per_hole = {p["id"]: p["strokes_allocation"] or computed.get(p["id"], {}) for p in players}
has_stroke_index = bool(hole_stroke_indices)
skins_won, skins_hole_results, unclaimed, money_won, unclaimed_money = None, None, 0, None, 0.0
skin_value = game["skin_value"]
skin_double_back9 = bool(game["skin_double_back_nine"])
skins_net = bool(game["skins_net"])
side_skins_enabled = bool(game.get("side_skins_enabled", 0))
if game["format"] == "skins" or side_skins_enabled:
carryover = bool(game["carryover"])
net_sph = strokes_per_hole if skins_net else None
skins_won, skins_hole_results, unclaimed, money_won, unclaimed_money = _calc_skins(
players, scores, holes, carryover, skin_value, skin_double_back9, net_sph)
if game["format"] == "skins":
results = sorted(players, key=lambda p: skins_won.get(p["id"], 0), reverse=True)
else:
results = sorted(players, key=lambda p: totals.get(p["id"], {}).get("total", 0), reverse=True)
return templates.TemplateResponse("games/summary.html", {
"request": request, "user": user, "game": dict(game),
"players": players, "scores": scores, "totals": totals,
"holes": holes, "hole_pars": hole_pars,
"playing_handicaps": playing_handicaps, "strokes_per_hole": strokes_per_hole,
"has_stroke_index": has_stroke_index,
"results": results,
"skins_won": skins_won, "skins_hole_results": skins_hole_results, "unclaimed": unclaimed,
"money_won": money_won, "unclaimed_money": unclaimed_money, "skin_value": skin_value,
"skin_double_back9": skin_double_back9, "skins_net": skins_net,
"side_skins_enabled": side_skins_enabled,
"carryover": bool(game["carryover"]),
})
@router.get("/games/{game_id}", response_class=HTMLResponse)
async def game_page(game_id: str, request: Request, user: dict = Depends(get_current_user),
db: aiosqlite.Connection = Depends(get_db)):
game = await _get_game(game_id, db)
if not game:
return RedirectResponse("/games", status_code=302)
players = await _get_players(game_id, db)
scores = await _get_scores(game_id, db)
totals = _totals(players, scores)
start_hole = game["start_hole"] if game["start_hole"] else 1
holes = list(range(start_hole, start_hole + game["holes_count"]))
hole_pars: dict[int, int] = {}
hole_stroke_indices: dict[int, int] = {}
if game["course_id"]:
async with db.execute(
"SELECT hole_number, par, stroke_index FROM course_holes WHERE course_id = ? ORDER BY hole_number",
(game["course_id"],),
) as c:
for row in await c.fetchall():
hole_pars[row["hole_number"]] = row["par"]
if row["stroke_index"] is not None:
hole_stroke_indices[row["hole_number"]] = row["stroke_index"]
computed = _strokes_per_hole(players, holes, hole_stroke_indices)
strokes_per_hole = {p["id"]: p["strokes_allocation"] or computed.get(p["id"], {}) for p in players}
has_stroke_index = bool(hole_stroke_indices)
return templates.TemplateResponse("games/game.html", {
"request": request, "user": user, "game": dict(game),
"players": players, "scores": scores, "totals": totals,
"holes": holes, "hole_pars": hole_pars, "hole_stroke_indices": hole_stroke_indices,
"strokes_per_hole": strokes_per_hole, "has_stroke_index": has_stroke_index,
"carryover": bool(game["carryover"]),
"skin_value": game["skin_value"],
"skin_double_back9": bool(game["skin_double_back_nine"]),
"skins_net": bool(game["skins_net"]),
"side_skins_enabled": bool(game.get("side_skins_enabled", 0)),
"start_hole": start_hole,
})
@router.post("/games/{game_id}/score")
async def save_score(game_id: str, request: Request, user: dict = Depends(get_current_user),
db: aiosqlite.Connection = Depends(get_db)):
form = await request.form()
hole = int(form["hole"])
now = datetime.now(timezone.utc).isoformat()
game = await _get_game(game_id, db)
if not game:
return HTMLResponse("Not found", status_code=404)
players = await _get_players(game_id, db)
player_ids = [p["id"] for p in players]
# Determine Bingo (first on green) and Bongo (first to hole out) — single winner
bingo_winner = form.get("bingo", "")
bongo_winner = form.get("bongo", "")
# Bango: may be multiple winners (split point)
bango_winners = form.getlist("bango")
bango_value = round(1.0 / len(bango_winners), 4) if bango_winners else 0.0
for uid in player_ids:
bingo = 1 if uid == bingo_winner else 0
bango = bango_value if uid in bango_winners else 0.0
bongo = 1 if uid == bongo_winner else 0
strokes_val = form.get(f"strokes_{uid}")
strokes = int(strokes_val) if strokes_val and strokes_val.isdigit() else None
await db.execute(
"""INSERT INTO hole_scores (id, game_id, hole_number, user_id, strokes, bingo, bango, bongo, updated_by, updated_at)
VALUES (?,?,?,?,?,?,?,?,?,?)
ON CONFLICT(game_id, hole_number, user_id) DO UPDATE SET
strokes=excluded.strokes, bingo=excluded.bingo, bango=excluded.bango, bongo=excluded.bongo,
updated_by=excluded.updated_by, updated_at=excluded.updated_at""",
(secrets.token_urlsafe(10), game_id, hole, uid, strokes, bingo, bango, bongo, user["id"], now),
)
await db.commit()
# Broadcast updated scores to all connected players
scores = await _get_scores(game_id, db)
totals = _totals(players, scores)
hole_data = {uid: scores.get(hole, {}).get(uid, {}) for uid in player_ids}
await _broadcast(game_id, {
"type": "score_update",
"hole": hole,
"scores": {uid: {"strokes": d.get("strokes"), "bingo": d.get("bingo", 0),
"bango": d.get("bango", 0.0), "bongo": d.get("bongo", 0)}
for uid, d in hole_data.items()},
"totals": totals,
})
return HTMLResponse("", status_code=204)
@router.post("/games/{game_id}/finish")
async def finish_game(game_id: str, user: dict = Depends(get_current_user),
db: aiosqlite.Connection = Depends(get_db)):
await db.execute("UPDATE games SET status = 'completed' WHERE id = ?", (game_id,))
await db.commit()
return RedirectResponse(f"/games/{game_id}/summary", status_code=302)
# ── WebSocket ─────────────────────────────────────────────────────────────────
@router.websocket("/games/{game_id}/ws")
async def game_ws(game_id: str, websocket: WebSocket):
await websocket.accept()
_connections.setdefault(game_id, set()).add(websocket)
try:
while True:
await websocket.receive_text() # keep alive
except WebSocketDisconnect:
_connections.get(game_id, set()).discard(websocket)