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