2 files changed, 55 insertions, 0 deletions
diff --git a/worker/maildir/message.go b/worker/maildir/message.go
index 9d622b45..5c6c9307 100644
--- a/worker/maildir/message.go
+++ b/worker/maildir/message.go
@@ -53,6 +53,26 @@ func (m Message) SetFlags(flags []maildir.Flag) error {
 	return m.dir.SetFlags(m.key, flags)
 }
 
+// MarkReplied either adds or removes the maildir.FlagReplied flag from the
+// message.
+func (m Message) MarkReplied(answered bool) error {
+	flags, err := m.Flags()
+	if err != nil {
+		return fmt.Errorf("could not read previous flags: %v", err)
+	}
+	if answered {
+		flags = append(flags, maildir.FlagReplied)
+		return m.SetFlags(flags)
+	}
+	var newFlags []maildir.Flag
+	for _, flag := range flags {
+		if flag != maildir.FlagReplied {
+			newFlags = append(newFlags, flag)
+		}
+	}
+	return m.SetFlags(newFlags)
+}
+
 // MarkRead either adds or removes the maildir.FlagSeen flag from the message.
 func (m Message) MarkRead(seen bool) error {
 	flags, err := m.Flags()
diff --git a/worker/maildir/worker.go b/worker/maildir/worker.go
index dbdb9252..f14672e5 100644
--- a/worker/maildir/worker.go
+++ b/worker/maildir/worker.go
@@ -195,6 +195,8 @@ func (w *Worker) handleMessage(msg types.WorkerMessage) error {
 		return w.handleDeleteMessages(msg)
 	case *types.ReadMessages:
 		return w.handleReadMessages(msg)
+	case *types.AnsweredMessages:
+		return w.handleAnsweredMessages(msg)
 	case *types.CopyMessages:
 		return w.handleCopyMessages(msg)
 	case *types.AppendMessage:
@@ -438,6 +440,39 @@ func (w *Worker) handleDeleteMessages(msg *types.DeleteMessages) error {
 	return nil
 }
 
+func (w *Worker) handleAnsweredMessages(msg *types.AnsweredMessages) error {
+	for _, uid := range msg.Uids {
+		m, err := w.c.Message(*w.selected, uid)
+		if err != nil {
+			w.worker.Logger.Printf("could not get message: %v", err)
+			w.err(msg, err)
+			continue
+		}
+		if err := m.MarkReplied(msg.Answered); err != nil {
+			w.worker.Logger.Printf(
+				"could not mark message as answered: %v", err)
+			w.err(msg, err)
+			continue
+		}
+		info, err := m.MessageInfo()
+		if err != nil {
+			w.worker.Logger.Printf("could not get message info: %v", err)
+			w.err(msg, err)
+			continue
+		}
+
+		w.worker.PostMessage(&types.MessageInfo{
+			Message: types.RespondTo(msg),
+			Info:    info,
+		}, nil)
+
+		w.worker.PostMessage(&types.DirectoryInfo{
+			Info: w.getDirectoryInfo(w.selectedName),
+		}, nil)
+	}
+	return nil
+}
+
 func (w *Worker) handleReadMessages(msg *types.ReadMessages) error {
 	for _, uid := range msg.Uids {
 		m, err := w.c.Message(*w.selected, uid)