Removed helpers to make routes self contained.

routes/voipms.py

@@ -1,10 +1,11 @@
 # routes/voipms.py
 
 import json
+import hmac, hashlib
+import phonenumbers
 from datetime import datetime
 from flask import Blueprint, request, jsonify
 from config import YEASTAR_WEBHOOK_URL, YEASTAR_SECRET, ENDPOINT_OBSCURITY
-from routes.helpers import to_e164, create_yeastar_payload, generate_signature
 import requests
 import logging
 import uuid
@@ -84,3 +85,43 @@ def voipms_inbound():
     except Exception as e:
         logging.error(f"[{request_id}] Error in voipms_inbound: {e}", exc_info=True)
         return jsonify({"error": "internal server error"}), 500
+
+def generate_signature(body: str) -> str:
+    signature = hmac.new(YEASTAR_SECRET.encode(), body.encode(), hashlib.sha256).hexdigest()
+    return f"sha256={signature}"
+
+def to_e164(number):
+    try:
+        parsed = phonenumbers.parse(number, "US")
+        return phonenumbers.format_number(parsed, phonenumbers.PhoneNumberFormat.E164)
+    except Exception as e:
+        logging.warning(f"Failed to normalize phone number {number}: {e}")
+        return number
+
+def create_yeastar_payload(data):
+    now_iso = datetime.now().astimezone().isoformat()
+    message_id = str(int(datetime.utcnow().timestamp()))
+    payload = {
+        "data": {
+            "event_type": "message.received",
+            "payload": {
+                "id": message_id,
+                "from": {
+                    "phone_number": data["from"]
+                },
+                "to": [
+                    {"phone_number": num} for num in data["to"]
+                ],
+                "text": data["text"],
+                "record_type": "message",
+                "received_at": now_iso
+            }
+        }
+    }
+
+    media_urls = data.get("media_urls", [])
+    if media_urls:
+        payload["data"]["payload"].pop("text", None)
+        payload["data"]["payload"]["media"] = [{"url": url} for url in media_urls]
+
+    return payload