Add comments to tickets

At the moment tickets are backed up with no comment thread. This means we end up with the initial problem, but not the resolution. The aim of this addition is to include the comments.

lambda_/zendesk_backup/main.py

@@ -95,12 +95,18 @@ def save_support(ticket_ids: Optional[list] = None):
         tickets = zenpy_client().search_export(type="ticket")
 
     for ticket in tickets:
+        comment_thread = zenpy_client().tickets.comments(ticket)
         # subject = re.sub(r"\s+", " ", re.sub(r"[^a-zA-Z0-9 ]", "", ticket.raw_subject))
         filename = f"gc3-{ticket.id}.json"
         key = f"{s3_support_prefix}tickets/{filename}"
         jprint(f"Saving 's3://{s3_bucket}/{key}'")
 
-        dobj = add_athena_datetimes(ticket.to_dict())
+        ticket_as_dict = ticket.to_dict()
+
+        dobj = add_athena_datetimes(ticket_as_dict)
+
+        # add all comments to the ticket
+        ticket_as_dict["comments"] = [comment.to_dict() for comment in comment_thread]
 
         s3_client().put_object(
             Body=json.dumps(dobj, default=str).encode("utf-8"),