supports lookup by domains

sync.py

@@ -29,6 +29,28 @@ def convert_to_pacific_time(date_str):
     if not date_str:
         return ''
 
+
+def extract_domains_from_emails(emails: List[str]) -> List[str]:
+    """Extract unique domains from a list of email addresses.
+    
+    Args:
+        emails (List[str]): List of email addresses
+        
+    Returns:
+        List[str]: List of unique domains extracted from the emails
+    """
+    if not emails:
+        return []
+    
+    domains = set()
+    for email in emails:
+        if email and '@' in email:
+            # Extract domain part after @
+            domain = email.split('@')[1].lower()
+            domains.add(domain)
+    
+    return sorted(list(domains))
+
     try:
         # Parse the UTC datetime
         utc_time = datetime.fromisoformat(date_str.replace('Z', '+00:00'))
@@ -241,7 +263,8 @@ def process_project(index: int, total: int, project_data: dict, client: Filevine
             project_name=p.get("projectName") or detail.get("projectName"),
             project_url=p.get("projectUrl") or detail.get("projectUrl"),
             #property_contacts=property_contacts
-            viewing_emails = valid_property_managers
+            viewing_emails = valid_property_managers,
+            viewing_domains = extract_domains_from_emails(valid_property_managers)
         )
         # Store the results in Firestore
         from app import db  # Import db from app