update email events

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

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?<br/><br/>
+
+Faltam 30 dias para o término do seu acesso ao curso <b>{course}</b>.<br/>
+Conclua dentro desse prazo para garantir sua certificação.<br/><br/>
+
+<a href="https://saladeaula.digital">👉 Acesse agora seu curso</a>
+"""
+
+
+@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,
+    )

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

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