42 lines
1.5 KiB
Python
42 lines
1.5 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 DynamoDBPersistenceLayer, KeyPair
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from layercake.strutils import md5_hash
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from boto3clients import dynamodb_client
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from config import ENROLLMENT_TABLE
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logger = Logger(__name__)
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dyn = 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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new_image = event.detail['new_image']
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enrollment_id = new_image['id']
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user_id = new_image['user']['id']
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course_id = new_image['course']['id']
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lock_hash = md5_hash(f'{user_id}{course_id}')
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with dyn.transact_writer() as transact:
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transact.delete(
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key=KeyPair(enrollment_id, 'SCHEDULE#REMINDER_NO_ACCESS_AFTER_3_DAYS')
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)
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transact.delete(
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key=KeyPair(enrollment_id, 'SCHEDULE#REMINDER_NO_ACTIVITY_AFTER_7_DAYS')
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)
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transact.delete(
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key=KeyPair(enrollment_id, 'SCHEDULE#REMINDER_ACCESS_PERIOD_BEFORE_30_DAYS')
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)
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transact.delete(key=KeyPair(enrollment_id, 'CANCEL_POLICY'))
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# Remove locks related to this enrollment
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transact.delete(key=KeyPair(enrollment_id, 'LOCK'))
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transact.delete(key=KeyPair('LOCK', lock_hash))
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return True
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