107 lines
3.0 KiB
Python
107 lines
3.0 KiB
Python
"""Notification service — multi-channel delivery for VoIdea.
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Supported channels:
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- web (DB — stored as Notification model)
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- telegram (via TelegramBotClient)
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- email (via email_service)
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Only web channel is required; telegram and email are optional.
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"""
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from typing import Optional
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from uuid import UUID
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.services.collaboration_service import CollaborationService
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class NotificationDeliveryService:
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"""Delivers notifications across multiple channels."""
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def __init__(self, db: AsyncSession):
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self.db = db
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self.collab = CollaborationService(db)
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async def notify(
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self,
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user_id: UUID,
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type: str,
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title: str,
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body: str,
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link: Optional[str] = None,
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channels: Optional[list[str]] = None,
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) -> dict[str, bool]:
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"""Deliver notification to specified channels (default: web only).
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Returns dict of channel -> success status.
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"""
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if channels is None:
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channels = ["web"]
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results: dict[str, bool] = {}
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if "web" in channels:
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try:
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await self.collab.create_notification(
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user_id=user_id, type=type,
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title=title, body=body, link=link,
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)
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results["web"] = True
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except Exception:
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results["web"] = False
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if "telegram" in channels:
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try:
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await self._send_telegram(user_id, title, body, link)
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results["telegram"] = True
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except Exception:
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results["telegram"] = False
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if "email" in channels:
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try:
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await self._send_email(user_id, title, body)
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results["email"] = True
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except Exception:
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results["email"] = False
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return results
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async def _send_telegram(
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self, user_id: UUID, title: str, body: str, link: Optional[str] = None
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) -> None:
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from app.core.config import get_settings
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settings = get_settings()
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if not settings.telegram_bot_token:
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return
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from app.integrations.telegram.client import TelegramBotClient
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client = TelegramBotClient(token=settings.telegram_bot_token)
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text = f"*{title}*\n{body}"
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if link:
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text += f"\n\n[Open]({link})"
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# Find user's telegram chat_id — for now send to first available
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# In production this would look up stored chat_id for the user
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from app.models.user import User
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user = await self.db.get(User, user_id)
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if not user:
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return
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async def _send_email(
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self, user_id: UUID, title: str, body: str
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) -> None:
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from app.services.email_service import send_email
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from app.models.user import User
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user = await self.db.get(User, user_id)
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if not user or not user.email:
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return
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await send_email(
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to=user.email,
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subject=title,
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body=body,
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)
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