wip

enrollment-management/app/events/stopgap/enroll.py

@@ -1,14 +1,59 @@
+import json
+import sqlite3
+
 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
+from sqlite_utils import Database
+
+from boto3clients import dynamodb_client
+from config import (
+    COURSE_TABLE,
+    ENROLLMENT_TABLE,
+    SQLITE_DATABASE,
+    SQLITE_TABLE,
+)
+
+sqlite3.register_converter('json', json.loads)
 
 logger = Logger(__name__)
+enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
+course_layer = DynamoDBPersistenceLayer(COURSE_TABLE, dynamodb_client)
+deduplication_window = {'offset_days': 90}
+
+
+class DeduplicationConflictError(Exception):
+    def __init__(self, *args):
+        super().__init__('Enrollment already exists')
 
 
 @event_source(data_class=EventBridgeEvent)
 @logger.inject_lambda_context
 def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
+    new_image = event.detail['new_image']
+
     return True
+
+
+class CourseNotFoundError(Exception):
+    def __init__(self, *args):
+        super().__init__('Course not found')
+
+
+def _get_course(course_id: str) -> dict:
+    with sqlite3.connect(
+        database=SQLITE_DATABASE, detect_types=sqlite3.PARSE_DECLTYPES
+    ) as conn:
+        db = Database(conn)
+        rows = db[SQLITE_TABLE].rows_where(
+            "json->>'$.metadata__betaeducacao_id' = ?", [course_id]
+        )
+
+        for row in rows:
+            return row['json']
+
+    raise CourseNotFoundError