message changes

packetserver/http/routers/messages.py

@@ -1,5 +1,5 @@
 # packetserver/http/routers/messages.py
-from fastapi import APIRouter, Depends, Query, HTTPException
+from fastapi import APIRouter, Depends, Query, HTTPException, Path
 from typing import Optional
 from datetime import datetime
 from persistent.mapping import PersistentMapping
@@ -63,3 +63,48 @@ async def get_messages(
     messages.sort(key=lambda m: m["sent_at"], reverse=True)
 
     return {"messages": messages[:limit], "total_returned": len(messages[:limit])}
+
+@router.get("/messages/{msg_id}")
+async def get_message(
+    msg_id: str = Path(..., description="UUID of the message (as string)"),
+    mark_retrieved: bool = Query(False, description="If true, mark message as retrieved/read"),
+    current_user: HttpUser = Depends(get_current_http_user)
+):
+    from packetserver.runners.http_server import get_db_connection
+    conn = get_db_connection()
+    root = conn.root()
+
+    username = current_user.username
+
+    messages_root = root.get('messages', {})
+    mailbox = messages_root.get(username)
+    if not mailbox:
+        raise HTTPException(status_code=404, detail="Mailbox not found")
+
+    # Find message by ID
+    target_msg = None
+    for msg in mailbox:
+        if str(msg.msg_id) == msg_id:
+            target_msg = msg
+            break
+
+    if not target_msg:
+        raise HTTPException(status_code=404, detail="Message not found")
+
+    # Optionally mark as retrieved
+    if mark_retrieved and not target_msg.retrieved:
+        target_msg.retrieved = True
+        target_msg._p_changed = True
+        mailbox._p_changed = True
+        transaction.commit()
+
+    return {
+        "id": str(target_msg.msg_id),
+        "from": target_msg.msg_from or "UNKNOWN",
+        "to": list(target_msg.msg_to),
+        "sent_at": target_msg.sent_at.isoformat() + "Z",
+        "text": target_msg.text,
+        "retrieved": target_msg.retrieved,
+        "has_attachments": len(target_msg.attachments) > 0,
+        # Future: "attachments": [...] metadata
+    }