90 lines
3.8 KiB
Python
90 lines
3.8 KiB
Python
import json
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from asgiref.sync import sync_to_async
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from channels.generic.websocket import AsyncJsonWebsocketConsumer
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from django.utils.translation import gettext_lazy as _
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from draw.models import Draw, Round, Pool, TeamDraw
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from participation.models import Tournament, Participation
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from registration.models import Registration
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def ensure_orga(f):
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async def func(self, *args, **kwargs):
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reg = self.registration
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if reg.is_volunteer and not reg.is_admin and self.tournament not in reg.interesting_tournaments \
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or not reg.is_volunteer:
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return await self.alert(_("You are not an organizer."), 'danger')
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return await f(self, *args, **kwargs)
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return func
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class DrawConsumer(AsyncJsonWebsocketConsumer):
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async def connect(self):
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tournament_id = self.scope['url_route']['kwargs']['tournament_id']
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self.tournament = await sync_to_async(Tournament.objects.get)(pk=tournament_id)
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self.participations = await sync_to_async(lambda: list(Participation.objects\
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.filter(tournament=self.tournament, valid=True)\
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.prefetch_related('team').all()))()
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user = self.scope['user']
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reg = await sync_to_async(Registration.objects.get)(user=user)
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self.registration = reg
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if reg.is_volunteer and not reg.is_admin and self.tournament not in reg.interesting_tournaments \
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or not reg.is_volunteer and reg.team.participation.tournament != self.tournament:
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# This user may not have access to the drawing session
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await self.close()
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return
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await self.accept()
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await self.channel_layer.group_add(f"tournament-{self.tournament.id}", self.channel_name)
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async def disconnect(self, close_code):
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await self.channel_layer.group_discard(f"tournament-{self.tournament.id}", self.channel_name)
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async def alert(self, message: str, alert_type: str = 'info'):
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return await self.send_json({'type': 'alert', 'alert_type': alert_type, 'message': str(message)})
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async def receive_json(self, content, **kwargs):
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print(content)
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match content['type']:
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case 'start_draw':
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await self.start_draw(**content)
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@ensure_orga
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async def start_draw(self, fmt, **kwargs):
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print(fmt, kwargs)
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try:
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fmt = list(map(int, fmt.split('+')))
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except ValueError as e:
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return await self.alert(_("Invalid format"), 'danger')
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print(fmt, sum(fmt), len(self.participations))
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if sum(fmt) != len(self.participations):
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return await self.alert(
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_("The sum must be equal to the number of teams: expected {len}, got {sum}")\
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.format(len=len(self.participations), sum=sum(fmt)), 'danger')
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draw = await sync_to_async(Draw.objects.create)(tournament=self.tournament)
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r = await sync_to_async(Round.objects.create)(draw=draw, number=1)
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for i, f in enumerate(fmt):
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sync_to_async(Pool.objects.create)(round=r, letter=i + 1, size=f)
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for participation in self.participations:
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sync_to_async(TeamDraw.objects.create)(participation=participation)
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await self.alert(_("Draw started!"), 'success')
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await self.channel_layer.group_send(f"tournament-{self.tournament.id}",
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{'type': 'draw.start', 'fmt': fmt, 'draw': draw, 'round': r})
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async def draw_start(self, content):
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await self.alert(_("The draw for the tournament {tournament} will start.")\
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.format(tournament=self.tournament.name), 'warning')
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await self.send_json({'type': 'draw_start', 'fmt': content['fmt'],
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'trigrams': [p.team.trigram for p in self.participations]})
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