172 lines
4.7 KiB
Python
172 lines
4.7 KiB
Python
import json
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from datetime import date, datetime
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from email.mime.application import MIMEApplication
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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 layercake.email_ import Message
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from boto3clients import dynamodb_client, sesv2_client
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from config import (
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CERT_REPORTING_URI,
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EMAIL_SENDER,
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ENROLLMENT_TABLE,
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PAPERFORGE_API,
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USER_TABLE,
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)
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SUBJECT = 'Certificados que vencerão em {month} na EDUSEG®'
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REPLY_TO = ('Carolina Brand', 'carolina@somosbeta.com.br')
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BCC = [
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'sergio@somosbeta.com.br',
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'carolina@somosbeta.com.br',
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'tiago@somosbeta.com.br',
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]
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MESSAGE = """
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Oi, tudo bem?<br/><br/>
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Em anexo você encontra os certificados que vencerão em <strong>{month}</strong>.
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<br/><br/>
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Qualquer dúvida, estamos à disposição.
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"""
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logger = Logger(__name__)
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enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
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user_layer = DynamoDBPersistenceLayer(USER_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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old_image = event.detail['old_image']
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# Key pattern `CERT_REPORTING#ORG#{org_id}`
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*_, org_id = old_image['id'].split('#')
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# Key pattern `MONTH#{month}#SCHEDULE#SEND_REPORT_EMAIL`
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_, month, *_ = old_image['sk'].split('#')
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event_name = old_image['sk']
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target_month = old_image['target_month']
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pretty_month = _monthfmt(datetime.strptime(target_month, '%Y-%m').date())
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now_ = now()
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r = enrollment_layer.collection.query(
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KeyPair(
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pk=old_image['id'],
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sk=f'MONTH#{target_month}#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': CERT_REPORTING_URI,
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'args': {
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'month': pretty_month,
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'items': r['items'],
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},
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},
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cls=Encoder,
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)
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try:
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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, timeout=6)
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r.raise_for_status()
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except requests.exceptions.Timeout:
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logger.info('The request timed out')
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raise
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emailmsg = Message(
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from_=EMAIL_SENDER,
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to=_get_admin_emails(org_id),
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reply_to=REPLY_TO,
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bcc=BCC,
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subject=SUBJECT.format(month=pretty_month),
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)
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emailmsg.add_alternative(MESSAGE.format(month=pretty_month))
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attachment = MIMEApplication(r.content)
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attachment.add_header(
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'Content-Disposition',
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'attachment',
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filename=f'{target_month}.pdf',
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)
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emailmsg.attach(attachment)
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try:
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with enrollment_layer.transact_writer() as transact:
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transact.update(
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key=KeyPair(
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pk=old_image['id'],
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sk=f'MONTH#{month}',
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),
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update_expr='SET #status = :status, 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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':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': old_image['id'],
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'sk': f'{event_name}#EXECUTED',
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'created_at': now_,
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}
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)
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sesv2_client.send_email(
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Content={
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'Raw': {
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'Data': emailmsg.as_bytes(),
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},
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}
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)
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except Exception as exc:
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logger.exception(exc)
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enrollment_layer.put_item(
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item={
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'id': old_image['id'],
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'sk': f'{event_name}#FAILED',
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'created_at': now_,
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}
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)
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return False
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else:
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logger.info('Email sent')
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return True
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def _get_admin_emails(org_id: str) -> list[tuple[str, str]]:
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# Post-migration: rename `admins` to `ADMIN`
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r = user_layer.collection.query(KeyPair(org_id, 'admins'))
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return [(x['name'], x['email']) for x in r['items']]
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def _monthfmt(dt: date) -> str:
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months = [
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'Janeiro',
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'Fevereiro',
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'Março',
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'Abril',
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'Maio',
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'Junho',
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'Julho',
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'Agosto',
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'Setembro',
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'Outubro',
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'Novembro',
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'Dezembro',
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]
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return f'{months[dt.month - 1]} de {dt.year}'
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