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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"""
API endpoints для системы уведомлений v2.0
Новая архитектура:
- Notification с GenericForeignKey (actor/action_object/target)
- verb вместо category/type
- UserChannelPreferences для настроек каналов
"""
from rest_framework.decorators import api_view, permission_classes
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from rest_framework import status
from django.db import models
from django.conf import settings
from ..models import Notification, UserChannelPreferences
def _get_notification_title(notification):
"""Получить заголовок уведомления из data или сгенерировать fallback"""
# Приоритет: title из data (задается при создании уведомления)
if notification.data and 'title' in notification.data:
return notification.data['title']
# Fallback: генерируем простой заголовок из verb
return notification.verb.replace('_', ' ').title()
@api_view(['GET'])
@permission_classes([IsAuthenticated])
def get_notifications(request):
"""
Получить список уведомлений с пагинацией и фильтрами
Query params:
- page: номер страницы (default: 1)
- page_size: размер страницы (default: 20)
- verb: фильтр по типу действия (liked, commented, mentioned и т.д.)
- unread_only: только непрочитанные (true/false)
- search: поиск по описанию
"""
page = int(request.GET.get('page', 1))
page_size = int(request.GET.get('page_size', 20))
verb = request.GET.get('verb')
unread_only = request.GET.get('unread_only', 'false').lower() == 'true'
search = request.GET.get('search', '').strip()
# Базовый queryset
queryset = Notification.objects.filter(
recipient=request.user,
deleted=False,
).order_by('-timestamp')
# Фильтры
if verb:
queryset = queryset.filter(verb=verb)
if unread_only:
queryset = queryset.unread()
if search:
queryset = queryset.filter(description__icontains=search)
# Пагинация
total = queryset.count()
start = (page - 1) * page_size
end = start + page_size
notifications = queryset[start:end]
# Сериализация (совместимость с frontend)
data = {
'total': total,
'page': page,
'page_size': page_size,
'unread_count': queryset.filter(unread=True).count(),
'notifications': [
{
'id': n.id,
# Frontend ожидает title, message, is_read, created_at
'title': _get_notification_title(n),
'message': n.description,
'short_message': (
n.description[:100] + '...'
if len(n.description) > 100
else n.description
),
'is_read': not n.unread,
'created_at': n.timestamp.isoformat(),
'category': n.verb,
'action_url': n.action_url,
# Дополнительные поля для обратной совместимости
'verb': n.verb,
'description': n.description,
'actor': {
'id': n.actor.id if n.actor else None,
'name': str(n.actor) if n.actor else 'Система',
'type': n.actor_content_type.model if n.actor else None,
} if n.actor else None,
'unread': n.unread,
'public': n.public,
'deleted': n.deleted,
'emailed': n.emailed,
'timestamp': n.timestamp.isoformat(),
'timesince': n.timesince,
}
for n in notifications
]
}
return Response(data)
@api_view(['GET'])
@permission_classes([IsAuthenticated])
def get_unread_count(request):
"""Получить количество непрочитанных уведомлений"""
count = Notification.objects.filter(
recipient=request.user,
unread=True,
deleted=False,
).count()
return Response({'count': count})
@api_view(['POST'])
@permission_classes([IsAuthenticated])
def mark_as_read(request, notification_id):
"""Отметить уведомление как прочитанное"""
try:
notification = Notification.objects.get(
id=notification_id,
recipient=request.user
)
notification.mark_as_read()
return Response({
'status': 'success',
'notification_id': notification_id
})
except Notification.DoesNotExist:
return Response(
{'status': 'error', 'message': 'Notification not found'},
status=status.HTTP_404_NOT_FOUND
)
@api_view(['POST'])
@permission_classes([IsAuthenticated])
def mark_as_unread(request, notification_id):
"""Отметить уведомление как непрочитанное"""
try:
notification = Notification.objects.get(
id=notification_id,
recipient=request.user
)
notification.mark_as_unread()
return Response({
'status': 'success',
'notification_id': notification_id
})
except Notification.DoesNotExist:
return Response(
{'status': 'error', 'message': 'Notification not found'},
status=status.HTTP_404_NOT_FOUND
)
@api_view(['POST'])
@permission_classes([IsAuthenticated])
def mark_all_as_read(request):
"""Отметить все уведомления как прочитанные"""
verb = request.data.get('verb') # Опционально - только определенный тип
queryset = Notification.objects.filter(
recipient=request.user,
unread=True,
deleted=False,
)
if verb:
queryset = queryset.filter(verb=verb)
count = queryset.mark_all_as_read()
return Response({
'status': 'success',
'count': count
})
@api_view(['DELETE'])
@permission_classes([IsAuthenticated])
def delete_notification(request, notification_id):
"""Удалить уведомление (soft delete)"""
try:
notification = Notification.objects.get(
id=notification_id,
recipient=request.user
)
notification.deleted = True
notification.save(update_fields=['deleted'])
return Response({'status': 'success'})
except Notification.DoesNotExist:
return Response(
{'status': 'error', 'message': 'Notification not found'},
status=status.HTTP_404_NOT_FOUND
)
@api_view(['DELETE'])
@permission_classes([IsAuthenticated])
def delete_all_read(request):
"""Удалить все прочитанные уведомления"""
count = Notification.objects.filter(
recipient=request.user,
unread=False,
deleted=False,
).update(deleted=True)
return Response({
'status': 'success',
'count': count
})
@api_view(['GET'])
@permission_classes([IsAuthenticated])
def get_verb_types(request):
"""
Получить список типов (verb) уведомлений с количеством
Возвращает статистику по типам уведомлений пользователя.
"""
from django.db.models import Count, Q
verb_stats = Notification.objects.filter(
recipient=request.user,
deleted=False,
).values('verb').annotate(
total=Count('id'),
unread=Count('id', filter=Q(unread=True))
).order_by('-total')
# Возвращаем verb как есть - фронтенд сам сделает перевод
data = [
{
'verb': item['verb'],
'name': item['verb'], # Фронтенд переведет
'total': item['total'],
'unread': item['unread'],
}
for item in verb_stats
]
return Response({'verb_types': data})
@api_view(['GET', 'PUT'])
@permission_classes([IsAuthenticated])
def channel_preferences(request):
"""
Получить или обновить настройки каналов уведомлений
GET: Возвращает текущие настройки
PUT: Обновляет настройки
Настройки:
- web_enabled: WebSocket уведомления (bool)
- email_enabled: Email уведомления (bool)
- email_frequency: instant/daily/weekly/disabled
- push_enabled: Web Push уведомления (bool)
- dnd_enabled: Режим "Не беспокоить" (bool)
- dnd_start_time: Начало DND (HH:MM)
- dnd_end_time: Конец DND (HH:MM)
- disabled_verbs: Список отключенных типов (array)
"""
# Получаем или создаем настройки
prefs, created = UserChannelPreferences.objects.get_or_create(
user=request.user
)
if request.method == 'GET':
data = {
'web_enabled': prefs.web_enabled,
'email_enabled': prefs.email_enabled,
'email_frequency': prefs.email_frequency,
'push_enabled': prefs.push_enabled,
'dnd_enabled': prefs.dnd_enabled,
'dnd_start_time': prefs.dnd_start_time.strftime('%H:%M') if prefs.dnd_start_time else None,
'dnd_end_time': prefs.dnd_end_time.strftime('%H:%M') if prefs.dnd_end_time else None,
'disabled_verbs': prefs.disabled_verbs,
}
return Response(data)
elif request.method == 'PUT':
# Обновляем настройки
if 'web_enabled' in request.data:
prefs.web_enabled = request.data['web_enabled']
if 'email_enabled' in request.data:
prefs.email_enabled = request.data['email_enabled']
if 'email_frequency' in request.data:
frequency = request.data['email_frequency']
if frequency in ['instant', 'daily', 'weekly', 'disabled']:
prefs.email_frequency = frequency
if 'push_enabled' in request.data:
prefs.push_enabled = request.data['push_enabled']
if 'dnd_enabled' in request.data:
prefs.dnd_enabled = request.data['dnd_enabled']
if 'dnd_start_time' in request.data:
from datetime import datetime
time_str = request.data['dnd_start_time']
if time_str:
prefs.dnd_start_time = datetime.strptime(time_str, '%H:%M').time()
if 'dnd_end_time' in request.data:
from datetime import datetime
time_str = request.data['dnd_end_time']
if time_str:
prefs.dnd_end_time = datetime.strptime(time_str, '%H:%M').time()
if 'disabled_verbs' in request.data:
prefs.disabled_verbs = request.data['disabled_verbs']
prefs.save()
return Response({
'status': 'success',
'message': 'Preferences updated'
})
@api_view(['GET'])
@permission_classes([IsAuthenticated])
def get_vapid_public_key(request):
"""
Получить публичный VAPID ключ для Web Push подписки
Returns:
- vapid_public_key: публичный ключ в формате base64url
"""
from django.conf import settings
vapid_key = getattr(settings, 'VAPID_PUBLIC_KEY', None)
if not vapid_key:
return Response(
{
'status': 'error',
'message': 'VAPID keys not configured',
'vapid_public_key': None
},
status=status.HTTP_503_SERVICE_UNAVAILABLE
)
return Response({
'status': 'success',
'vapid_public_key': vapid_key
})
@api_view(['POST'])
@permission_classes([IsAuthenticated])
def subscribe_push(request):
"""
Подписка на Web Push уведомления
Body:
- endpoint: URL для отправки push
- keys: {p256dh, auth} ключи шифрования
- device_name: название устройства/браузера (опционально)
"""
from push_notifications.models import WebPushDevice
endpoint = request.data.get('endpoint')
keys = request.data.get('keys', {})
device_name = request.data.get('device_name', 'unknown')
if not endpoint or not keys:
return Response(
{'status': 'error', 'message': 'endpoint and keys required'},
status=status.HTTP_400_BAD_REQUEST
)
# Регистрируем устройство
device, created = WebPushDevice.objects.update_or_create(
user=request.user,
registration_id=endpoint,
defaults={
'p256dh': keys.get('p256dh', ''),
'auth': keys.get('auth', ''),
'browser': device_name,
'active': True,
}
)
return Response({
'status': 'success',
'message': 'Push subscription created' if created else 'Push subscription updated',
'created': created,
'device_id': device.id
})
@api_view(['POST', 'DELETE'])
@permission_classes([IsAuthenticated])
def unsubscribe_push(request):
"""Отписка от Web Push уведомлений"""
from push_notifications.models import WebPushDevice
endpoint = request.data.get('endpoint')
if endpoint:
deleted_count, _ = WebPushDevice.objects.filter(
user=request.user,
registration_id=endpoint
).delete()
else:
# Удалить все устройства пользователя
deleted_count, _ = WebPushDevice.objects.filter(
user=request.user
).delete()
return Response({
'status': 'success',
'message': f'Deleted {deleted_count} push subscription(s)',
'deleted_count': deleted_count
})