Notify homeowners of plumber replies

internal/web/posts.go

@@ -93,7 +93,8 @@ func (s *Server) handleCreatePost(w http.ResponseWriter, r *http.Request) {
 	)
 }
 
-// notifyPostReply asynchronously emails the direct parent post's author.
+// notifyPostReply emails the root homeowner for admin replies and the direct
+// parent author for homeowner replies.
 func (s *Server) notifyPostReply(
 	parent *store.Post,
 	root *store.Post,
@@ -104,13 +105,19 @@ func (s *Server) notifyPostReply(
 		root == nil ||
 		reply == nil ||
 		replyAuthor == nil ||
-		s.cfg.Mail == nil ||
-		parent.AuthorID == replyAuthor.ID {
+		s.cfg.Mail == nil {
 		return
 	}
 	if _, disabled := s.cfg.Mail.(mail.Nop); disabled {
 		return
 	}
+	recipientID := parent.AuthorID
+	if replyAuthor.Admin() {
+		recipientID = root.AuthorID
+	}
+	if recipientID == replyAuthor.ID {
+		return
+	}
 	msg := mail.PostReply{
 		RootID:          root.ID,
 		RootTitle:       root.Title,
@@ -118,7 +125,6 @@ func (s *Server) notifyPostReply(
 		ReplyBody:       reply.Body,
 		ReplyAuthorName: replyAuthor.Name,
 	}
-	recipientID := parent.AuthorID
 	go func() {
 		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 		defer cancel()