Files
saladeaula.digital/api.saladeaula.digital/app/routes/enrollments/cancel.py

85 lines
2.6 KiB
Python

from typing import Annotated
from aws_lambda_powertools import Logger
from aws_lambda_powertools.event_handler.api_gateway import Router
from aws_lambda_powertools.event_handler.openapi.params import Body
from layercake.dateutils import now
from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
from boto3clients import dynamodb_client
from config import ENROLLMENT_TABLE
from exceptions import CancelPolicyConflictError
from middlewares.authentication_middleware import User as Authenticated
logger = Logger(__name__)
router = Router()
dyn = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
@router.patch('/<enrollment_id>/cancel')
def cancel(
enrollment_id: str,
lock_hash: Annotated[str | None, Body(embed=True)] = None,
):
now_ = now()
canceled_by: Authenticated = router.context['user']
with dyn.transact_writer() as transact:
transact.update(
key=KeyPair(enrollment_id, '0'),
cond_expr='#status = :pending',
update_expr='SET #status = :canceled, \
canceled_at = :now, \
updated_at = :now',
expr_attr_names={
'#status': 'status',
},
expr_attr_values={
':pending': 'PENDING',
':canceled': 'CANCELED',
':now': now_,
},
)
transact.put(
item={
'id': enrollment_id,
'sk': 'CANCELED',
'canceled_by': {
'id': canceled_by.id,
'name': canceled_by.name,
},
'created_at': now_,
}
)
transact.delete(
key=KeyPair(
pk=enrollment_id,
sk='CANCEL_POLICY',
),
cond_expr='attribute_exists(sk)',
exc_cls=CancelPolicyConflictError,
)
# Remove reminders and policies that no longer apply
transact.delete(
key=KeyPair(
pk=enrollment_id,
sk='SCHEDULE#REMINDER_NO_ACCESS_AFTER_3_DAYS',
)
)
transact.delete(
key=KeyPair(
pk=enrollment_id,
sk='SCHEDULE#REMINDER_ACCESS_PERIOD_BEFORE_30_DAYS',
)
)
transact.delete(
key=KeyPair(
pk=enrollment_id,
sk='METADATA#PARENT_SLOT',
)
)
if lock_hash:
transact.delete(key=KeyPair(enrollment_id, 'LOCK'))
transact.delete(key=KeyPair('LOCK', lock_hash))