human handoffs

backend/app/services/mime_parser.py

@@ -5,6 +5,8 @@ from email.parser import BytesParser
 from email.utils import getaddresses, parsedate_to_datetime
 from html import unescape
 
+from app.services.message_ids import first_message_id, parse_message_id_list
+
 
 def _addresses(values: list[str]) -> list[dict[str, str]]:
     return [
@@ -75,8 +77,25 @@ def parse_mime(raw: bytes) -> dict:
             pass
     body_text = "\n".join(text_parts).strip()
     body_html = "\n".join(html_parts).strip() or None
+    internet_message_id = first_message_id(message.get("Message-ID"))
+    in_reply_to = first_message_id(message.get("In-Reply-To"))
+    references = parse_message_id_list(message.get("References"))
+    raw_headers = {
+        "message_id": message.get("Message-ID"),
+        "in_reply_to": message.get("In-Reply-To"),
+        "references": message.get("References"),
+        "subject": message.get("Subject"),
+        "date": message.get("Date"),
+        "from": message.get("From"),
+        "to": message.get("To"),
+        "cc": message.get("Cc"),
+        "reply_to": message.get("Reply-To"),
+    }
     return {
-        "message_id": (message.get("Message-ID") or "").strip() or None,
+        "message_id": internet_message_id,
+        "in_reply_to": in_reply_to,
+        "references": references,
+        "raw_headers": raw_headers,
         "sender": from_value,
         "to": _addresses(message.get_all("to", [])),
         "cc": _addresses(message.get_all("cc", [])),