feat(f3): add lie submission window with 45s default

lobby/views.py

@@ -1,12 +1,22 @@
 import json
 import random
+from datetime import timedelta
 
 from django.contrib.auth.decorators import login_required
-from django.db import transaction
+from django.db import IntegrityError, transaction
 from django.http import HttpRequest, JsonResponse
+from django.utils import timezone
 from django.views.decorators.http import require_GET, require_POST
 
-from fupogfakta.models import Category, GameSession, Player, Question, RoundConfig
+from fupogfakta.models import (
+    Category,
+    GameSession,
+    LieAnswer,
+    Player,
+    Question,
+    RoundConfig,
+    RoundQuestion,
+)
 
 SESSION_CODE_ALPHABET = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789"
 SESSION_CODE_LENGTH = 6
@@ -198,3 +208,130 @@ def start_round(request: HttpRequest, code: str) -> JsonResponse:
         },
         status=201,
     )
+
+
+@require_POST
+@login_required
+def show_question(request: HttpRequest, code: str) -> JsonResponse:
+    session_code = code.strip().upper()
+
+    try:
+        session = GameSession.objects.get(code=session_code)
+    except GameSession.DoesNotExist:
+        return JsonResponse({"error": "Session not found"}, status=404)
+
+    if session.host_id != request.user.id:
+        return JsonResponse({"error": "Only host can show question"}, status=403)
+
+    if session.status != GameSession.Status.LIE:
+        return JsonResponse({"error": "Question can only be shown in lie phase"}, status=400)
+
+    try:
+        round_config = RoundConfig.objects.get(session=session, number=session.current_round)
+    except RoundConfig.DoesNotExist:
+        return JsonResponse({"error": "Round config missing"}, status=400)
+
+    if RoundQuestion.objects.filter(session=session, round_number=session.current_round).exists():
+        return JsonResponse({"error": "Question already shown for this round"}, status=409)
+
+    used_question_ids = RoundQuestion.objects.filter(session=session).values_list("question_id", flat=True)
+    available_questions = Question.objects.filter(
+        category=round_config.category,
+        is_active=True,
+    ).exclude(pk__in=used_question_ids)
+
+    if not available_questions.exists():
+        return JsonResponse({"error": "No available questions in category"}, status=400)
+
+    question = random.choice(list(available_questions))
+    round_question = RoundQuestion.objects.create(
+        session=session,
+        round_number=session.current_round,
+        question=question,
+        correct_answer=question.correct_answer,
+    )
+
+    lie_deadline_at = round_question.shown_at + timedelta(seconds=round_config.lie_seconds)
+
+    return JsonResponse(
+        {
+            "round_question": {
+                "id": round_question.id,
+                "prompt": question.prompt,
+                "round_number": round_question.round_number,
+                "shown_at": round_question.shown_at.isoformat(),
+                "lie_deadline_at": lie_deadline_at.isoformat(),
+            },
+            "config": {
+                "lie_seconds": round_config.lie_seconds,
+            },
+        },
+        status=201,
+    )
+
+
+@require_POST
+def submit_lie(request: HttpRequest, code: str, round_question_id: int) -> JsonResponse:
+    payload = _json_body(request)
+    session_code = code.strip().upper()
+
+    player_id = payload.get("player_id")
+    lie_text = str(payload.get("text", "")).strip()
+
+    if not player_id:
+        return JsonResponse({"error": "player_id is required"}, status=400)
+
+    if not lie_text or len(lie_text) > 255:
+        return JsonResponse({"error": "text must be between 1 and 255 characters"}, status=400)
+
+    try:
+        session = GameSession.objects.get(code=session_code)
+    except GameSession.DoesNotExist:
+        return JsonResponse({"error": "Session not found"}, status=404)
+
+    if session.status != GameSession.Status.LIE:
+        return JsonResponse({"error": "Lie submission is only allowed in lie phase"}, status=400)
+
+    try:
+        player = Player.objects.get(pk=player_id, session=session)
+    except Player.DoesNotExist:
+        return JsonResponse({"error": "Player not found in session"}, status=404)
+
+    try:
+        round_question = RoundQuestion.objects.get(
+            pk=round_question_id,
+            session=session,
+            round_number=session.current_round,
+        )
+    except RoundQuestion.DoesNotExist:
+        return JsonResponse({"error": "Round question not found"}, status=404)
+
+    try:
+        round_config = RoundConfig.objects.get(session=session, number=round_question.round_number)
+    except RoundConfig.DoesNotExist:
+        return JsonResponse({"error": "Round config missing"}, status=400)
+
+    lie_deadline_at = round_question.shown_at + timedelta(seconds=round_config.lie_seconds)
+    if timezone.now() > lie_deadline_at:
+        return JsonResponse({"error": "Lie submission window has closed"}, status=400)
+
+    try:
+        lie = LieAnswer.objects.create(round_question=round_question, player=player, text=lie_text)
+    except IntegrityError:
+        return JsonResponse({"error": "Lie already submitted for this player"}, status=409)
+
+    return JsonResponse(
+        {
+            "lie": {
+                "id": lie.id,
+                "player_id": player.id,
+                "round_question_id": round_question.id,
+                "text": lie.text,
+                "created_at": lie.created_at.isoformat(),
+            },
+            "window": {
+                "lie_deadline_at": lie_deadline_at.isoformat(),
+            },
+        },
+        status=201,
+    )