Files
qivip/django/play/consumers/lobby.py
2025-04-21 13:35:51 +02:00

221 lines
8.6 KiB
Python

from channels.generic.websocket import AsyncWebsocketConsumer
import json
import asyncio
from ..models import QuizGame, QuizGameParticipant
from channels.db import database_sync_to_async
# Dictionary to track inactive check tasks and active connections per game
game_check_tasks = {}
game_connections = {}
class LobbyConsumer(AsyncWebsocketConsumer):
async def connect(self):
self.join_code = self.scope['url_route']['kwargs']['join_code']
self.room_group_name = f'lobby_{self.join_code}'
# Get participant ID from session
self.participant_id = self.scope['session'].get('participant_id')
# Track connection
if self.join_code not in game_connections:
game_connections[self.join_code] = set()
game_connections[self.join_code].add(self.channel_name)
# Join room group
await self.channel_layer.group_add(
self.room_group_name,
self.channel_name
)
await self.accept()
# Send initial participants list
await self.update_participants()
async def disconnect(self, close_code):
# Leave room group
await self.channel_layer.group_discard(
self.room_group_name,
self.channel_name
)
# Remove from connection tracking
if self.join_code in game_connections:
game_connections[self.join_code].discard(self.channel_name)
if not game_connections[self.join_code]:
# Last connection closed
del game_connections[self.join_code]
if self.join_code in game_check_tasks:
# Cancel the inactive check task
game_check_tasks[self.join_code].cancel()
del game_check_tasks[self.join_code]
async def receive(self, text_data):
data = json.loads(text_data)
message_type = data.get('type')
print(f'Received message type: {message_type}')
if message_type == 'ping':
# Respond with pong to keep connection alive
await self.send(text_data=json.dumps({
'type': 'pong'
}))
return
elif message_type in ['leave_game', 'kick_player']:
participant_id = data.get('participant_id')
if participant_id:
try:
# Get participant info before deletion
participant = await database_sync_to_async(QuizGameParticipant.objects.get)(participant_id=participant_id)
display_name = participant.display_name
# For kick_player, verify that the request comes from the host
if message_type == 'kick_player':
game = await database_sync_to_async(lambda: participant.quiz_game)()
# Get host_id from message
host_id = data.get('host_id')
print(f'Kick attempt - Game host_id: {game.host_id}, Message host_id: {host_id}')
if not host_id:
print('No host_id in message')
return
if str(game.host_id) != str(host_id):
print(f'Host ID mismatch: {game.host_id} != {host_id}')
return
# Also verify against cookie as backup
cookie_host_id = self.scope.get('cookies', {}).get('host_id')
if not cookie_host_id or str(cookie_host_id) != str(host_id):
print(f'Cookie host_id mismatch: {cookie_host_id} != {host_id}')
return
# Delete the participant
await database_sync_to_async(participant.delete)()
# Notify other players
await self.channel_layer.group_send(
self.room_group_name,
{
'type': 'player_left',
'player_name': display_name,
'was_kicked': message_type == 'kick_player',
'participant_id': participant_id
}
)
# Update participants list
await self.update_participants()
# If it's the kicked player's connection, send them home
if participant_id == self.participant_id:
await self.send(text_data=json.dumps({
'type': 'redirect',
'url': '/'
}))
except QuizGameParticipant.DoesNotExist:
pass
elif message_type == 'update_participants':
await self.update_participants()
elif message_type == 'start_game':
host_id = data.get('host_id')
if host_id:
success = await self.start_game(host_id)
if success:
await self.channel_layer.group_send(
self.room_group_name,
{
'type': 'game_state_update',
'action': 'start_game',
'redirect_url': f'/play/game/{self.join_code}/question'
}
)
async def get_participants_list(self):
try:
from django.utils import timezone
from datetime import timedelta
game = await database_sync_to_async(QuizGame.objects.get)(join_code=self.join_code)
participants = await database_sync_to_async(lambda: list(
game.participants
.values('participant_id', 'display_name')
))()
# Send join notification for new participants
try:
prev_names = set(p['display_name'] for p in self.last_participants) if hasattr(self, 'last_participants') else set()
current_names = set(p['display_name'] for p in participants)
new_participants = current_names - prev_names
for name in new_participants:
await self.channel_layer.group_send(
self.room_group_name,
{
'type': 'player_joined',
'player_name': name
}
)
except Exception as e:
print(f'Error sending join notifications: {e}')
self.last_participants = participants
return participants
except QuizGame.DoesNotExist:
return []
async def update_participants(self):
participants = await self.get_participants_list()
await self.channel_layer.group_send(
self.room_group_name,
{
'type': 'participants_list_update',
'participants': participants
}
)
async def participants_list_update(self, event):
await self.send(text_data=json.dumps({
'type': 'participants_list_update',
'participants': event['participants']
}))
@database_sync_to_async
def start_game(self, host_id):
try:
game = QuizGame.objects.get(join_code=self.join_code)
if str(game.host_id) == str(host_id):
from django.utils import timezone
game.current_state = 'question'
game.question_start_time = timezone.now()
game.save()
return True
except QuizGame.DoesNotExist:
pass
return False
async def game_state_update(self, event):
await self.send(text_data=json.dumps({
'type': 'game_state_update',
'action': event['action'],
'redirect_url': event.get('redirect_url')
}))
async def player_joined(self, event):
await self.send(text_data=json.dumps({
'type': 'player_joined',
'player_name': event['player_name']
}))
async def player_left(self, event):
message = {
'type': 'player_left',
'player_name': event['player_name'],
'was_kicked': event.get('was_kicked', False)
}
if event.get('was_kicked') and event.get('participant_id'):
message['participant_id'] = event['participant_id']
await self.send(text_data=json.dumps(message))