lizerk ed636081dc refactor: complete notifications v2 system with frontend translation
- Remove hard-coded Russian translations from backend API
- Backend now returns raw verb values (language-agnostic)
- Implement frontend translation functions for notification titles and categories
- Add category badge system with filters on notifications page
- Create translation utilities in frontend (verbTranslations.ts)
- Add notification settings page structure
- Update API endpoints to return simplified notification data
- Refactor notification signals across all apps
- Remove deprecated code and tests
- Add comprehensive documentation for v2 migration

Backend changes:
- notifications/api/views.py: Remove translation logic, simplify responses
- All notification_signals.py: Update to use consistent patterns
- Remove deprecated Telegram bot command
- Update Celery tasks for new notification structure

Frontend changes:
- app/notifications/page.tsx: Add translation functions and category badges
- hooks/useNotificationWebSocket.ts: New WebSocket hook for real-time updates
- lib/verbTranslations.ts: Centralized translation mappings
- components/NotificationCenter.tsx: Update to use new API format

This makes the notifications module fully reusable and project-independent.
2026-03-09 21:35:36 +03:00

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"""
Celery задачи для отправки email уведомлений
"""
from .base import BaseNotificationTask
from notifications import config
class EmailNotificationTask(BaseNotificationTask):
"""
Celery задача для асинхронной отправки email уведомлений.
Особенности:
- Rate limiting: из config (default: 10 email/минуту)
- Retry: из config (default: 3 попытки с интервалом 5 минут)
- Поддержка кастомных тем и получателей
"""
task_name = "notifications.send_email_notification"
max_retries = config.email_max_retries()
retry_delay = config.email_retry_delay()
rate_limit = config.email_rate_limit()
def send_notification(self, notification, **kwargs) -> bool:
"""
Отправляет email через EmailNotificationSender.
Args:
notification: Объект Notification
**kwargs:
- custom_subject: кастомная тема письма
- recipient_email: явный email получателя
Returns:
True если успешно, False иначе
"""
from notifications.senders.email import EmailNotificationSender
sender = EmailNotificationSender()
return sender.send(notification, **kwargs)
class DigestEmailTask(BaseNotificationTask):
"""
Celery задача для отправки email дайджестов.
Особенности:
- Отправка сводки непрочитанных уведомлений
- Поддержка daily/weekly частоты
- Максимум 50 уведомлений в одном дайджесте
"""
task_name = "notifications.send_digest_email"
max_retries = 2
retry_delay = 600 # 10 минут между попытками
rate_limit = '5/h' # Не более 5 дайджестов в час
def execute(self, celery_task, user_id: int, frequency: str = 'daily', **kwargs):
"""Переопределяем execute для работы с user_id вместо notification_id"""
try:
from django.contrib.auth import get_user_model
from notifications.models import Notification
from notifications.senders.email import EmailNotificationSender
from django.utils import timezone
from datetime import timedelta
User = get_user_model()
user = User.objects.get(id=user_id)
# Определяем период для дайджеста
if frequency == 'weekly':
cutoff = timezone.now() - timedelta(days=7)
else: # daily
cutoff = timezone.now() - timedelta(days=1)
# Получаем непрочитанные уведомления за период
notifications = Notification.objects.filter(
recipient=user,
unread=True,
emailed=False, # Еще не отправлены по email
timestamp__gte=cutoff,
).order_by('-timestamp')[:50] # Максимум 50 в дайджесте
if not notifications.exists():
self.logger.info(f"📭 No notifications for digest: user={user_id}, frequency={frequency}")
return False
# Отправляем дайджест
sender = EmailNotificationSender()
success = sender.send_digest(user, list(notifications), frequency=frequency)
if success:
self.logger.info(
f"✅ Digest sent: user={user_id}, frequency={frequency}, "
f"count={notifications.count()}"
)
else:
self.logger.warning(f"⚠️ Digest failed: user={user_id}, frequency={frequency}")
return success
except Exception as exc:
self.logger.exception(f"❌ Digest task error: user={user_id}, frequency={frequency}")
raise celery_task.retry(exc=exc)
def send_notification(self, notification, **kwargs) -> bool:
"""Не используется для дайджестов"""
pass
# Регистрируем задачи в Celery
send_email_notification = EmailNotificationTask.register_task()
send_digest_email = DigestEmailTask.register_task()