Fix reliability issue with current_app

Author: NatSquared

api/src/api/services/engagement_service.py

@@ -1,12 +1,13 @@
 """Service for engagement management."""
 
+import os
 from datetime import datetime, timezone
 from http import HTTPStatus
 from typing import Mapping, Optional, Sequence, Union
 
 from sqlalchemy.exc import SQLAlchemyError
 from sqlalchemy.orm import selectinload
-from flask import current_app
+from flask import current_app, has_app_context
 from flask_restx import abort
 from marshmallow import ValidationError
 
@@ -549,7 +550,13 @@ def delete(cls, engagement_id: int):
         one_of_roles = (Role.SUPER_ADMIN.value, Role.UNPUBLISH_ENGAGEMENT.value)
         authorization.check_auth(one_of_roles=one_of_roles)
 
-        current_env = current_app.config['ENVIRONMENT']
+        current_env = (
+            (current_app.config.get('ENVIRONMENT') if has_app_context() else '')
+            or os.getenv('ENVIRONMENT')
+            or os.getenv('DEPLOYMENT_ENV')
+            or os.getenv('FLASK_ENV', 'development')
+        ).strip().lower()
+
         if current_env in ('prod', 'production'):
             abort(HTTPStatus.FORBIDDEN, 'Cannot delete an engagement in production environment')