renamem orders

orders-events/app/events/stopgap/remove_slots.py

@@ -0,0 +1,68 @@
+from aws_lambda_powertools import Logger
+from aws_lambda_powertools.utilities.data_classes import (
+    EventBridgeEvent,
+    event_source,
+)
+from aws_lambda_powertools.utilities.typing import LambdaContext
+from layercake.dynamodb import (
+    DynamoDBPersistenceLayer,
+    KeyPair,
+)
+
+from boto3clients import dynamodb_client
+from config import ENROLLMENT_TABLE, ORDER_TABLE, USER_TABLE
+
+logger = Logger(__name__)
+user_layer = DynamoDBPersistenceLayer(USER_TABLE, dynamodb_client)
+order_layer = DynamoDBPersistenceLayer(ORDER_TABLE, dynamodb_client)
+enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
+
+
+@event_source(data_class=EventBridgeEvent)
+@logger.inject_lambda_context
+def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
+    """Remove slots if the tenant has a `metadata#billing_policy` and
+    the total is greater than zero."""
+    new_image = event.detail['new_image']
+    data = order_layer.get_item(KeyPair(new_image['id'], '0'))
+    org_id = data['tenant_id']
+
+    policy = user_layer.collection.get_item(
+        KeyPair(pk=org_id, sk='metadata#billing_policy'),
+        raise_on_error=False,
+        default=False,
+    )
+
+    # Skip if billing policy is missing or order is less than or equal to zero
+    if not policy or data['total'] <= 0:
+        logger.info('Missing billing policy')
+        return False
+
+    logger.info(f'Billing policy from Org ID "{org_id}" found', policy=policy)
+
+    result = enrollment_layer.collection.query(
+        KeyPair(
+            f'vacancies#{org_id}',
+            new_image['id'],
+        ),
+        limit=100,
+    )
+
+    logger.info(
+        'Slots found',
+        total_items=len(result['items']),
+        slots=result['items'],
+    )
+
+    with enrollment_layer.batch_writer() as batch:
+        for pair in result['items']:
+            batch.delete_item(
+                Key={
+                    'id': {'S': pair['id']},
+                    'sk': {'S': pair['sk']},
+                }
+            )
+
+        logger.info('Deleted all slots')
+
+    return True