from typing import Dict
from backend.business.notification_manager import NotificationManager
from backend.models.constants import NotificationChannel


class NotificationHub:
    def __init__(self):
        pass

    async def enqueue_notification(
        self,
        channels: list[str],  # Accept multiple channels as a list of strings
        receiver_id: str,
        subject: str,
        event: str,
        properties: Dict,
    ):
        # Convert string channels to NotificationChannel enums
        notification_channels = []
        for channel_str in channels:
            try:
                notification_channels.append(NotificationChannel[channel_str.upper()])
            except KeyError:
                raise ValueError(f"Unsupported notification channel: {channel_str}")

        # Initialize NotificationManager with sender_id
        notification_manager = NotificationManager()

        # Call the enqueue_notification method in NotificationManager
        return await notification_manager.enqueue_notification(
            channels=notification_channels,
            receiver_id=receiver_id,
            subject=subject,
            event=event,
            properties=properties,
        )