lookup general mail/name from registry and use plone.api

src/bda/plone/shop/mailnotify.py

@@ -25,16 +25,16 @@ def __init__(self, context):
 
     @property
     def admin_email(self):
-        props = api.portal.get_tool("portal_properties")
-        return get_shop_settings().admin_email or getattr(
-            props.site_properties, "email_from_address", ""
+        return (
+            get_shop_settings().admin_email
+            or api.portal.get_registry_record("plone.email_from_address")
         )
 
     @property
     def admin_name(self):
-        props = api.portal.get_tool("portal_properties")
-        return get_shop_settings().admin_name or getattr(
-            props.site_properties, "email_from_name", ""
+        return (
+            get_shop_settings().admin_name
+            or api.portal.get_registry_record("plone.email_from_name")
         )
 
 
@@ -89,8 +89,7 @@ def _lookup_text(self, field):
         enum = getattr(settings, field, None)
         if enum is None:
             return
-        portal_state = self.context.restrictedTraverse("@@plone_portal_state")
-        lang = portal_state.language()
+        lang = api.portal.get_current_language()
         for entry in enum:
             if entry["lang"] == lang:
                 return entry["text"]
@@ -142,8 +141,7 @@ def __init__(self, context):
 
     def payment_text(self, payment):
         settings = get_shop_payment_settings()
-        portal_state = self.context.restrictedTraverse("@@plone_portal_state")
-        lang = portal_state.language()
+        lang = api.portal.get_current_language()
         for entry in settings.payment_text:
             if entry["lang"] == lang and entry["payment"] == payment:
                 return entry["text"]