"""
Controller for notification callback endpoints.
"""
from flask import Blueprint, request, jsonify
from api.middleware import basic_auth_required
from api.models import NotificationCallbackRequest, NotificationCallbackResponse
import logging

# Configure logger
logger = logging.getLogger(__name__)

# Create blueprint
notification_bp = Blueprint('notification', __name__)

@notification_bp.route('/NotificationCallback', methods=['POST'])
@basic_auth_required
def notification_callback():
    """
    Endpoint to receive transaction status notifications.
    
    This method is used for informing Simbrella about the status of transactions 
    that FirstBank has processed.
    
    Returns:
        JSON response acknowledging receipt of notification
    """
    try:
        # Parse and validate request
        data = request.get_json()
        if not data:
            return jsonify({
                'resultCode': '400',
                'resultDescription': 'Invalid JSON payload'
            }), 400
        
        # Validate required fields
        required_fields = ['fbnTransactionId', 'transactionId', 'customerId', 'accountId', 
                          'debtId', 'transactionType', 'amountProvided', 'amountCollected',
                          'responseCode', 'responseDescription']
        for field in required_fields:
            if field not in data:
                return jsonify({
                    'resultCode': '422',
                    'resultDescription': f'Missing required field: {field}'
                }), 422
        
        # Create request model
        req = NotificationCallbackRequest.from_dict(data)
        
        # Process notification (this would connect to the business logic)
        # For demonstration, we'll return a mock response
        
        # Log the notification details
        logger.info(f"Received notification for transaction {req.transactionId}, "
                   f"type {req.transactionType}, status {req.responseCode}")
        
        # Create response
        response = NotificationCallbackResponse(
            resultCode="00",
            resultDescription="Successful"
        )
        
        return jsonify(response.to_dict())
    
    except Exception as e:
        logger.error(f"Error processing notification callback: {str(e)}")
        return jsonify({
            'resultCode': '500',
            'resultDescription': 'Internal server error'
        }), 500