Move scheduled tasks into their own module.

There is no change to the functionality - only moving the code around.

app/celery/scheduled_tasks.py

@@ -0,0 +1,94 @@
+from datetime import datetime, timedelta
+
+from flask import current_app
+from sqlalchemy.exc import SQLAlchemyError
+
+from app import notify_celery
+from app.clients import STATISTICS_FAILURE
+from app.dao.invited_user_dao import delete_invitations_created_more_than_two_days_ago
+from app.dao.notifications_dao import delete_notifications_created_more_than_a_week_ago, get_notifications, \
+    update_notification_status_by_id
+from app.dao.users_dao import delete_codes_older_created_more_than_a_day_ago
+
+
+@notify_celery.task(name="delete-verify-codes")
+def delete_verify_codes():
+    try:
+        start = datetime.utcnow()
+        deleted = delete_codes_older_created_more_than_a_day_ago()
+        current_app.logger.info(
+            "Delete job started {} finished {} deleted {} verify codes".format(start, datetime.utcnow(), deleted)
+        )
+    except SQLAlchemyError:
+        current_app.logger.info("Failed to delete verify codes")
+        raise
+
+
+@notify_celery.task(name="delete-successful-notifications")
+def delete_successful_notifications():
+    try:
+        start = datetime.utcnow()
+        deleted = delete_notifications_created_more_than_a_week_ago('delivered')
+        current_app.logger.info(
+            "Delete job started {} finished {} deleted {} successful notifications".format(
+                start,
+                datetime.utcnow(),
+                deleted
+            )
+        )
+    except SQLAlchemyError:
+        current_app.logger.info("Failed to delete successful notifications")
+        raise
+
+
+@notify_celery.task(name="delete-failed-notifications")
+def delete_failed_notifications():
+    try:
+        start = datetime.utcnow()
+        deleted = delete_notifications_created_more_than_a_week_ago('failed')
+        deleted += delete_notifications_created_more_than_a_week_ago('technical-failure')
+        deleted += delete_notifications_created_more_than_a_week_ago('temporary-failure')
+        deleted += delete_notifications_created_more_than_a_week_ago('permanent-failure')
+        current_app.logger.info(
+            "Delete job started {} finished {} deleted {} failed notifications".format(
+                start,
+                datetime.utcnow(),
+                deleted
+            )
+        )
+    except SQLAlchemyError:
+        current_app.logger.info("Failed to delete failed notifications")
+        raise
+
+
+@notify_celery.task(name="delete-invitations")
+def delete_invitations():
+    try:
+        start = datetime.utcnow()
+        deleted = delete_invitations_created_more_than_two_days_ago()
+        current_app.logger.info(
+            "Delete job started {} finished {} deleted {} invitations".format(start, datetime.utcnow(), deleted)
+        )
+    except SQLAlchemyError:
+        current_app.logger.info("Failed to delete invitations")
+        raise
+
+
+@notify_celery.task(name='timeout-sending-notifications')
+def timeout_notifications():
+    notifications = get_notifications(filter_dict={'status': 'sending'})
+    now = datetime.utcnow()
+    for noti in notifications:
+        try:
+            if (now - noti.created_at) > timedelta(
+                seconds=current_app.config.get('SENDING_NOTIFICATIONS_TIMEOUT_PERIOD')
+            ):
+                update_notification_status_by_id(noti.id, 'temporary-failure', STATISTICS_FAILURE)
+                current_app.logger.info((
+                    "Timeout period reached for notification ({})"
+                    ", status has been updated.").format(noti.id))
+        except Exception as e:
+            current_app.logger.exception(e)
+            current_app.logger.error((
+                "Exception raised trying to timeout notification ({})"
+                ", skipping notification update.").format(noti.id))