94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
import json
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import requests
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from aws_lambda_powertools import Logger
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from aws_lambda_powertools.shared.json_encoder import Encoder
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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.dateutils import now
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from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
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from boto3clients import dynamodb_client, s3_client
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from config import BILLING_TEMPLATE_URI, BUCKET_NAME, ORDER_TABLE, PAPERFORGE_API
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logger = Logger(__name__)
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order_layer = DynamoDBPersistenceLayer(ORDER_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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keys = event.detail['keys']
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now_ = now()
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# Key pattern `BILLING#ORG#{org_id}`
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*_, org_id = keys['id'].split('#')
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# Key pattern `START#{start_date}#END#{end_date}#SCHEDULE#AUTO_CLOSE`
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_, start_date, _, end_date, *_ = keys['sk'].split('#')
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result = order_layer.collection.query(
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KeyPair(
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pk=keys['id'],
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sk=f'START#{start_date}#END#{end_date}#ENROLLMENT',
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),
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limit=150,
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)
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json_data = json.dumps(
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{
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'template_uri': BILLING_TEMPLATE_URI,
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'args': {
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'start_date': start_date,
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'end_date': end_date,
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'items': result['items'],
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},
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},
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cls=Encoder,
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)
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# Send template URI and data to Paperforge API to generate a PDF
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r = requests.post(PAPERFORGE_API, data=json_data)
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r.raise_for_status()
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object_key = f'billing/{org_id}/{start_date}_{end_date}.pdf'
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s3_uri = f's3://{BUCKET_NAME}/{object_key}'
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try:
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s3_client.put_object(
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Bucket=BUCKET_NAME,
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Key=object_key,
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Body=r.content,
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ContentType='application/pdf',
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)
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except Exception as exc:
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logger.exception(exc)
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raise
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with order_layer.transact_writer() as transact:
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transact.update(
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key=KeyPair(
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pk=keys['id'],
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sk=f'START#{start_date}#END#{end_date}',
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),
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update_expr='SET #status = :status, s3_uri = :s3_uri, \
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updated_at = :updated_at',
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expr_attr_names={'#status': 'status'},
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expr_attr_values={
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':status': 'CLOSED',
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':s3_uri': s3_uri,
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':updated_at': now_,
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},
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cond_expr='attribute_exists(sk)',
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)
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transact.put(
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item={
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'id': keys['id'],
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'sk': '{sk}#EXECUTED'.format(sk=keys['sk']),
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'created_at': now_,
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}
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)
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logger.info(f'PDF uploaded successfully to {s3_uri}')
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return True
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