diff --git a/enrollments-events/app/events/emails/email_.py b/enrollments-events/app/events/emails/email_.py
new file mode 100644
index 0000000..e5f2562
--- /dev/null
+++ b/enrollments-events/app/events/emails/email_.py
@@ -0,0 +1,71 @@
+from typing import TYPE_CHECKING, TypedDict
+
+from aws_lambda_powertools import Logger
+from layercake.dateutils import now
+from layercake.dynamodb import DynamoDBPersistenceLayer
+from layercake.email_ import Message
+from layercake.strutils import first_word, truncate_str
+
+logger = Logger(__name__)
+
+if TYPE_CHECKING:
+ from mypy_boto3_sesv2 import SESV2Client
+else:
+ SESV2Client = object
+
+Event = TypedDict('Event', {'id': str, 'sk': str})
+
+
+def send_email(
+ to: tuple[str, str],
+ subject: str,
+ message: str,
+ context: dict = {},
+ *,
+ sender: tuple[str, str],
+ event: Event,
+ sesv2_client: SESV2Client,
+ dynamodb_persistence_layer: DynamoDBPersistenceLayer,
+) -> bool:
+ now_ = now()
+ name, _ = to
+ emailmsg = Message(
+ from_=sender,
+ to=to,
+ subject=subject.format(course=truncate_str(context['course'])),
+ )
+ emailmsg.add_alternative(
+ message.format(first_name=first_word(name), course=context['course'])
+ )
+
+ try:
+ sesv2_client.send_email(
+ Content={
+ 'Raw': {
+ 'Data': emailmsg.as_bytes(),
+ },
+ }
+ )
+ logger.info('Email sent')
+ except Exception as exc:
+ logger.exception(exc)
+
+ dynamodb_persistence_layer.put_item(
+ item={
+ 'id': event['id'],
+ 'sk': f'{event["sk"]}#FAILED',
+ 'created_at': now_,
+ }
+ )
+
+ return False
+ else:
+ dynamodb_persistence_layer.put_item(
+ item={
+ 'id': event['id'],
+ 'sk': f'{event["sk"]}#EXECUTED',
+ 'created_at': now_,
+ }
+ )
+
+ return True
diff --git a/enrollments-events/app/events/emails/reminder_access_period_before_30_days.py b/enrollments-events/app/events/emails/reminder_access_period_before_30_days.py
new file mode 100644
index 0000000..2722142
--- /dev/null
+++ b/enrollments-events/app/events/emails/reminder_access_period_before_30_days.py
@@ -0,0 +1,60 @@
+from aws_lambda_powertools import Logger
+from aws_lambda_powertools.utilities.data_classes import (
+ EventBridgeEvent,
+ event_source,
+)
+from aws_lambda_powertools.utilities.typing import LambdaContext
+from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
+
+from boto3clients import dynamodb_client, sesv2_client
+from config import (
+ EMAIL_SENDER,
+ ENROLLMENT_TABLE,
+)
+
+from .email_ import send_email
+
+logger = Logger(__name__)
+enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
+
+
+SUBJECT = 'Seu acesso ao curso de {course} termina em 30 dias'
+MESSAGE = """
+Oi {first_name}, tudo bem?
+
+Faltam 30 dias para o término do seu acesso ao curso {course}.
+Conclua dentro desse prazo para garantir sua certificação.
+
+👉 Acesse agora seu curso
+"""
+
+
+@event_source(data_class=EventBridgeEvent)
+@logger.inject_lambda_context
+def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
+ """30 days before the course access period ends."""
+ old_image = event.detail['old_image']
+
+ # Post-migration: Remove the following lines
+ if 'email' not in old_image:
+ # If email is missing, use enrollment email
+ cur_image = enrollment_layer.get_item(KeyPair(old_image['id'], '0'))
+ old_image['name'] = cur_image['user']['name']
+ old_image['email'] = cur_image['user']['email']
+ old_image['course'] = cur_image['course']['name']
+
+ return send_email(
+ to=(old_image['name'], old_image['email']),
+ subject=SUBJECT,
+ message=MESSAGE,
+ context={
+ 'course': old_image['course'],
+ },
+ sender=EMAIL_SENDER,
+ sesv2_client=sesv2_client,
+ event={
+ 'id': old_image['id'],
+ 'sk': 'SCHEDULE#REMINDER_NO_ACCESS_AFTER_3_DAYS',
+ },
+ dynamodb_persistence_layer=enrollment_layer,
+ )
diff --git a/enrollments-events/app/events/reenroll_if_failed.py b/enrollments-events/app/events/reenroll_if_failed.py
new file mode 100644
index 0000000..c3bb895
--- /dev/null
+++ b/enrollments-events/app/events/reenroll_if_failed.py
@@ -0,0 +1,35 @@
+from aws_lambda_powertools import Logger
+from aws_lambda_powertools.utilities.data_classes import (
+ EventBridgeEvent,
+ event_source,
+)
+from aws_lambda_powertools.utilities.typing import LambdaContext
+from layercake.dynamodb import DynamoDBPersistenceLayer, SortKey, TransactKey
+
+from boto3clients import dynamodb_client
+from config import (
+ ENROLLMENT_TABLE,
+)
+
+logger = Logger(__name__)
+enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
+
+
+@event_source(data_class=EventBridgeEvent)
+@logger.inject_lambda_context
+def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
+ new_image = event.detail['new_image']
+ subscription = enrollment_layer.collection.get_items(
+ TransactKey(new_image['id'])
+ + SortKey('METADATA#SUBSCRIPTION_COVERED')
+ + SortKey('author')
+ + SortKey('tenant')
+ # Post-migration: uncommet the following lines
+ # + SortKey('CREATED_BY')
+ # + SortKey('ORG')
+ )
+
+ with enrollment_layer.transact_writer() as transact_writer:
+ ...
+
+ return True
diff --git a/enrollments-events/app/events/schedule_reminders.py b/enrollments-events/app/events/schedule_reminders.py
new file mode 100644
index 0000000..a3bad8c
--- /dev/null
+++ b/enrollments-events/app/events/schedule_reminders.py
@@ -0,0 +1,70 @@
+from datetime import timedelta
+
+from aws_lambda_powertools import Logger
+from aws_lambda_powertools.utilities.data_classes import (
+ EventBridgeEvent,
+ event_source,
+)
+from aws_lambda_powertools.utilities.typing import LambdaContext
+from layercake.dateutils import now, ttl
+from layercake.dynamodb import DynamoDBPersistenceLayer
+
+from boto3clients import dynamodb_client
+from config import (
+ ENROLLMENT_TABLE,
+)
+
+logger = Logger(__name__)
+enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
+
+
+@event_source(data_class=EventBridgeEvent)
+@logger.inject_lambda_context
+def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
+ new_image = event.detail['new_image']
+ enrollment_id = new_image['id']
+ user = new_image['user']
+ course = new_image['course']
+ now_ = now()
+
+ with enrollment_layer.transact_writer() as transact:
+ transact.put(
+ item={
+ 'id': enrollment_id,
+ 'sk': 'SCHEDULE#REMINDER_NO_ACCESS_AFTER_3_DAYS',
+ 'name': user.name,
+ 'email': user.email,
+ 'course': course.name,
+ 'created_at': now_,
+ 'ttl': ttl(days=3, start_dt=now_),
+ },
+ )
+ # By default, the enrollment will expire when the access period ends
+ # (scheduled below).
+ # If the enrollment is completed earlier (e.g., certificate issued),
+ # the expiration schedule is canceled and an archive schedule
+ # (`SCHEDULE#SET_AS_ARCHIVED`) is created instead.
+ transact.put(
+ item={
+ 'id': enrollment_id,
+ 'sk': 'SCHEDULE#SET_AS_EXPIRED',
+ 'name': user.name,
+ 'email': user.email,
+ 'course': course.name,
+ 'created_at': now_,
+ 'ttl': ttl(start_dt=now_ + timedelta(days=course.access_period)),
+ },
+ )
+ transact.put(
+ item={
+ 'id': enrollment_id,
+ 'sk': 'REMINDER_ACCESS_PERIOD_BEFORE_15_DAYS',
+ 'name': user.name,
+ 'email': user.email,
+ 'course': course.name,
+ 'created_at': now_,
+ 'ttl': ttl(start_dt=now_ + timedelta(days=course.access_period - 15)),
+ },
+ )
+
+ return True
diff --git a/enrollments-events/tests/events/emails/test_reminder_access_period_before_30_days.py b/enrollments-events/tests/events/emails/test_reminder_access_period_before_30_days.py
new file mode 100644
index 0000000..8a83387
--- /dev/null
+++ b/enrollments-events/tests/events/emails/test_reminder_access_period_before_30_days.py
@@ -0,0 +1,18 @@
+import app.events.emails.reminder_access_period_before_30_days as app
+from aws_lambda_powertools.utilities.typing import LambdaContext
+
+
+def test_reminder_access_period_before_30_days(
+ dynamodb_seeds,
+ lambda_context: LambdaContext,
+):
+ event = {
+ 'detail': {
+ 'old_image': {
+ 'id': '47ZxxcVBjvhDS5TE98tpfQ',
+ 'sk': 'SCHEDULE#REMINDER_ACCESS_PERIOD_BEFORE_30_DAYS',
+ }
+ }
+ }
+
+ assert app.lambda_handler(event, lambda_context) # type: ignore
diff --git a/enrollments-events/tests/events/emails/test_reminder_cert_expiration_before_30_days.py b/enrollments-events/tests/events/emails/test_reminder_cert_expiration_before_30_days.py
new file mode 100644
index 0000000..0f2c986
--- /dev/null
+++ b/enrollments-events/tests/events/emails/test_reminder_cert_expiration_before_30_days.py
@@ -0,0 +1,18 @@
+import app.events.emails.reminder_cert_expiration_before_30_days as app
+from aws_lambda_powertools.utilities.typing import LambdaContext
+
+
+def test_reminder_cert_expiration_before_30_days(
+ dynamodb_seeds,
+ lambda_context: LambdaContext,
+):
+ event = {
+ 'detail': {
+ 'old_image': {
+ 'id': '47ZxxcVBjvhDS5TE98tpfQ',
+ 'sk': 'SCHEDULE#REMINDER_CERT_EXPIRATION_BEFORE_30_DAYS',
+ }
+ }
+ }
+
+ assert app.lambda_handler(event, lambda_context) # type: ignore
diff --git a/enrollments-events/tests/events/emails/test_reminder_no_activity_after_7_days.py b/enrollments-events/tests/events/emails/test_reminder_no_activity_after_7_days.py
new file mode 100644
index 0000000..98722ea
--- /dev/null
+++ b/enrollments-events/tests/events/emails/test_reminder_no_activity_after_7_days.py
@@ -0,0 +1,18 @@
+import app.events.emails.reminder_no_activity_after_7_days as app
+from aws_lambda_powertools.utilities.typing import LambdaContext
+
+
+def test_reminder_no_activity_after_7_days(
+ dynamodb_seeds,
+ lambda_context: LambdaContext,
+):
+ event = {
+ 'detail': {
+ 'old_image': {
+ 'id': '47ZxxcVBjvhDS5TE98tpfQ',
+ 'sk': 'SCHEDULE#REMINDER_NO_ACTIVITY_AFTER_7_DAYS',
+ }
+ }
+ }
+
+ assert app.lambda_handler(event, lambda_context) # type: ignore