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119 lines
4.6 KiB
119 lines
4.6 KiB
import asyncio
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import logging
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import string
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from apps.account.models import Notification, NotificationTemplate
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logger = logging.getLogger(__name__)
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class SafeFormatter(string.Formatter):
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def get_value(self, key, args, kwargs):
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if isinstance(key, str):
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if key not in kwargs:
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return f"{{{key}}}"
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return kwargs[key]
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return super().get_value(key, args, kwargs)
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def get_template_context(user, notification_type, data):
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"""
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Builds a dynamic context dictionary containing user info to format templates.
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"""
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context = {
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'student_name': getattr(user, 'fullname', user.username) or user.username,
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'fullname': getattr(user, 'fullname', user.username) or user.username,
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'username': user.username,
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}
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return context
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def resolve_notification_route(notification_type, data):
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"""
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Resolves standard GoRouter paths based on notification type and payload data.
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"""
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return None
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def create_and_send_notification(user, title_en, body_en, title_fa=None, body_fa=None, service='imam-javad',
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data=None, notification_type=None, action='navigate', navigate_to=None,
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title_ru=None, body_ru=None):
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"""
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Creates a Notification record in the database and sends a push notification to FCM.
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Loads and renders the NotificationTemplate from the database if present.
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If the template is inactive, the notification is discarded.
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"""
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# Map Persian arguments to Russian to preserve backward compatibility with existing signals/tasks
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title_ru = title_ru or title_fa
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body_ru = body_ru or body_fa
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# Auto-resolve notification type from data payload if not provided
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if not notification_type and isinstance(data, dict):
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notification_type = data.get('type')
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# 1. Check for template settings in the database
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if notification_type:
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template = NotificationTemplate.objects.filter(notification_type=notification_type).first()
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if template:
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if not template.is_active:
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logger.info(f"Notification type '{notification_type}' is disabled via database template settings.")
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return None
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# Override templates with database values
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title_ru = template.title_ru
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title_en = template.title_en
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body_ru = template.body_ru
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body_en = template.body_en
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# 2. Render templates safely with dynamic context
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context = get_template_context(user, notification_type, data)
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formatter = SafeFormatter()
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try:
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title_ru = formatter.format(title_ru, **context) if title_ru else ""
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title_en = formatter.format(title_en, **context) if title_en else ""
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body_ru = formatter.format(body_ru, **context) if body_ru else ""
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body_en = formatter.format(body_en, **context) if body_en else ""
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except Exception as e:
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logger.error(f"Error formatting templates: {e}")
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# Determine user localized text
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lang = getattr(user, 'language', None)
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lang_code = lang.code if lang and hasattr(lang, 'code') else 'ru'
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title = title_ru if lang_code == 'ru' else title_en
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message = body_ru if lang_code == 'ru' else body_en
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# Auto-resolve GoRouter navigation route if not provided
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if not navigate_to and notification_type:
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navigate_to = resolve_notification_route(notification_type, data)
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# Save to database
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from apps.account.tasks import send_notification
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notif = Notification.objects.create(
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user=user,
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title=title,
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message=message,
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service=service,
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notification_type=notification_type,
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action=action,
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navigate_to=navigate_to
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)
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fcm_token = getattr(user, 'fcm', None)
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if fcm_token:
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# Prepare the payload including the new routing properties
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fcm_data = dict(data or {})
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fcm_data.setdefault('type', notification_type or '')
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fcm_data.setdefault('action', action or '')
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fcm_data.setdefault('navigate_to', navigate_to or '')
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try:
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try:
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loop = asyncio.get_event_loop()
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except RuntimeError:
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loop = asyncio.new_event_loop()
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asyncio.set_event_loop(loop)
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if loop.is_running():
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loop.create_task(send_notification([fcm_token], title, message, fcm_data))
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else:
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loop.run_until_complete(send_notification([fcm_token], title, message, fcm_data))
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except Exception as e:
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logger.error(f"Failed to send push notification via FCM: {e}")
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return notif
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