Update DirectoryInfo handling for maildir

This ensures that the directory info is up to date on events in the
maildir worker. This also sets up the initial dirinfo for other
directories and updates them when using built-in commands.

FS events are still only watched for the selected directory. This should
be changed in a future patch to watch other directories too in order to
cover UI updates for folders when an event occurs in a non-selected
folder.

worker/maildir/worker.go

@@ -96,7 +96,7 @@ func (w *Worker) handleFSEvent(ev fsnotify.Event) {
 	w.worker.PostMessage(&types.DirectoryContents{
 		Uids: sortedUids,
 	}, nil)
-	dirInfo := w.getDirectoryInfo()
+	dirInfo := w.getDirectoryInfo(w.selectedName)
 	dirInfo.Recent = len(newUnseen)
 	w.worker.PostMessage(&types.DirectoryInfo{
 		Info: dirInfo,
@@ -114,9 +114,9 @@ func (w *Worker) err(msg types.WorkerMessage, err error) {
 	}, nil)
 }
 
-func (w *Worker) getDirectoryInfo() *models.DirectoryInfo {
+func (w *Worker) getDirectoryInfo(name string) *models.DirectoryInfo {
 	dirInfo := &models.DirectoryInfo{
-		Name:     w.selectedName,
+		Name:     name,
 		Flags:    []string{},
 		ReadOnly: false,
 		// total messages
@@ -125,15 +125,27 @@ func (w *Worker) getDirectoryInfo() *models.DirectoryInfo {
 		Recent: 0,
 		// total unread
 		Unseen: 0,
+
+		AccurateCounts: true,
 	}
-	uids, err := w.c.UIDs(*w.selected)
+
+	dir := w.c.Dir(name)
+
+	uids, err := w.c.UIDs(dir)
 	if err != nil {
 		w.worker.Logger.Printf("could not get uids: %v", err)
 		return dirInfo
 	}
 	dirInfo.Exists = len(uids)
+
+	recent, err := dir.UnseenCount()
+	if err != nil {
+		w.worker.Logger.Printf("could not get unseen count: %v", err)
+	}
+	dirInfo.Recent = recent
+
 	for _, uid := range uids {
-		message, err := w.c.Message(*w.selected, uid)
+		message, err := w.c.Message(dir, uid)
 		if err != nil {
 			w.worker.Logger.Printf("could not get message: %v", err)
 			continue
@@ -153,6 +165,7 @@ func (w *Worker) getDirectoryInfo() *models.DirectoryInfo {
 			dirInfo.Unseen++
 		}
 	}
+	dirInfo.Unseen += dirInfo.Recent
 	return dirInfo
 }
 
@@ -229,6 +242,10 @@ func (w *Worker) handleListDirectories(msg *types.ListDirectories) error {
 				Attributes: []string{},
 			},
 		}, nil)
+
+		w.worker.PostMessage(&types.DirectoryInfo{
+			Info: w.getDirectoryInfo(name),
+		}, nil)
 	}
 	return nil
 }
@@ -265,7 +282,7 @@ func (w *Worker) handleOpenDirectory(msg *types.OpenDirectory) error {
 
 	// TODO: why does this need to be sent twice??
 	info := &types.DirectoryInfo{
-		Info: w.getDirectoryInfo(),
+		Info: w.getDirectoryInfo(msg.Directory),
 	}
 	w.worker.PostMessage(info, nil)
 	w.worker.PostMessage(info, nil)
@@ -392,6 +409,10 @@ func (w *Worker) handleFetchMessageBodyPart(
 		Info:    info,
 	}, nil)
 
+	w.worker.PostMessage(&types.DirectoryInfo{
+		Info: w.getDirectoryInfo(w.selectedName),
+	}, nil)
+
 	return nil
 }
 
@@ -430,6 +451,11 @@ func (w *Worker) handleDeleteMessages(msg *types.DeleteMessages) error {
 		w.worker.Logger.Printf("error removing some messages: %v", err)
 		return err
 	}
+
+	w.worker.PostMessage(&types.DirectoryInfo{
+		Info: w.getDirectoryInfo(w.selectedName),
+	}, nil)
+
 	return nil
 }
 
@@ -452,10 +478,15 @@ func (w *Worker) handleReadMessages(msg *types.ReadMessages) error {
 			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
 }
@@ -466,6 +497,15 @@ func (w *Worker) handleCopyMessages(msg *types.CopyMessages) error {
 	if err != nil {
 		return err
 	}
+
+	w.worker.PostMessage(&types.DirectoryInfo{
+		Info: w.getDirectoryInfo(w.selectedName),
+	}, nil)
+
+	w.worker.PostMessage(&types.DirectoryInfo{
+		Info: w.getDirectoryInfo(msg.Destination),
+	}, nil)
+
 	return nil
 }
 
@@ -482,6 +522,10 @@ func (w *Worker) handleAppendMessage(msg *types.AppendMessage) error {
 		w.worker.Logger.Printf("could not write message to destination: %v", err)
 		return err
 	}
+
+	w.worker.PostMessage(&types.DirectoryInfo{
+		Info: w.getDirectoryInfo(msg.Destination),
+	}, nil)
 	return nil
 }