Create resolver.py

resolver.py

@@ -0,0 +1,33 @@
+
+from firestore_client import get_firestore_client
+db = get_firestore_client()
+
+def resolve_user_context(uid: str, company_code: str):
+    """
+    Returns: {"uid", "email", "participantId"} — participantId may be None if not found.
+    """
+    email = None
+    participant_id = None
+
+    # 1) users/{uid} -> email
+    user_doc = db.collection("users").document(uid).get()
+    if user_doc.exists:
+        user = user_doc.to_dict()
+        email = user.get("email")
+
+    # 2) participants where email == user.email and companyCode == ctx
+    if email:
+        q = (db.collection("participants")
+               .where("email", "==", email)
+               .where("hub", "==", company_code))  # if you store companyCode on participants, use "companyCode" here
+        try:
+            # Prefer companyCode; fall back to hub if that's what you use. Adjust the field to your actual schema.
+            q = db.collection("participants").where("email", "==", email).where("companyCode", "==", company_code)
+        except Exception:
+            pass
+
+        docs = list(q.limit(1).stream())
+        if docs:
+            participant_id = docs[0].id
+
+    return {"uid": uid, "email": email, "participantId": participant_id}