feat(ui): auto-refresh active sessions

README.md

@@ -38,7 +38,7 @@ It lets you browse, search, connect to, edit, and organize the hosts defined in
 ### Fast Navigation
 - Fuzzy search by alias, IP, user, or tag
 - Press `Enter` to connect to the selected host immediately
-- See currently running local SSH sessions in a read-only panel
+- See currently running local SSH sessions in an auto-refreshing read-only panel
 - Organize hosts with tags such as `prod`, `dev`, and `test`
 - Sort by alias or last connection time, with reversible order
 

README.zh-CN.md

@@ -38,7 +38,7 @@ lazyssh 是一个运行在终端中的交互式 SSH 管理器，灵感来自 `la
 ### 快速导航
 - 支持按别名、IP、用户或标签进行模糊搜索
 - 选中主机后按回车即可直接 SSH 登录
-- 只读展示当前本机正在运行的 SSH 会话
+- 在自动刷新的只读面板中展示当前本机正在运行的 SSH 会话
 - 支持用标签组织主机，例如 `prod`、`dev`、`test`
 - 支持按别名或最近连接时间排序，并可反转排序方向
 

internal/adapters/ui/active_sessions.go

@@ -76,8 +76,11 @@ func formatActiveSessionLine(session domain.ActiveSession) string {
 		colorText(CurrentTheme.MetaText, fmt.Sprintf("%d", session.PID)),
 		colorText(CurrentTheme.AliasText, tview.Escape(alias)),
 	}
+	if session.Destination != "" && session.Destination != alias {
+		parts = append(parts, colorText(CurrentTheme.DimText, tview.Escape(session.Destination)))
+	}
 	if len(session.Forwards) > 0 {
-		parts = append(parts, colorText(CurrentTheme.HostText, strings.Join(session.Forwards, ", ")))
+		parts = append(parts, colorText(CurrentTheme.HostText, "fwd "+strings.Join(session.Forwards, ", ")))
 	}
 	return strings.Join(parts, "  ")
 }

internal/adapters/ui/active_sessions_test.go

@@ -51,3 +51,18 @@ func TestActiveSessionsSetSessionsShowsEmptyState(t *testing.T) {
 		t.Fatalf("text = %q, want empty state", text)
 	}
 }
+
+func TestFormatActiveSessionLineShowsDestinationAndForwards(t *testing.T) {
+	line := formatActiveSessionLine(domain.ActiveSession{
+		PID:         12345,
+		Alias:       "example.com",
+		Destination: "ops@example.com",
+		Forwards:    []string{"8080:localhost:80"},
+	})
+
+	for _, want := range []string{"12345", "example.com", "ops@example.com", "fwd 8080:localhost:80"} {
+		if !strings.Contains(line, want) {
+			t.Fatalf("line = %q, want it to contain %q", line, want)
+		}
+	}
+}

internal/adapters/ui/tui.go

@@ -16,6 +16,7 @@ package ui
 
 import (
 	"strings"
+	"time"
 
 	"go.uber.org/zap"
 
@@ -52,6 +53,8 @@ type tui struct {
 	sortMode      SortMode
 	themeMode     ThemeMode
 	searchVisible bool
+
+	activeSessionsRefreshStop chan struct{}
 }
 
 type mainUIState struct {
@@ -68,6 +71,8 @@ const (
 	focusDetails    = "details"
 )
 
+const activeSessionsRefreshInterval = 10 * time.Second
+
 func NewTUI(logger *zap.SugaredLogger, ss ports.ServerService, version, commit string) App {
 	return &tui{
 		logger:        logger,
@@ -91,6 +96,8 @@ func (t *tui) Run() error {
 	t.loadPreferences().initializeTheme().buildComponents().buildLayout().bindEvents()
 	t.loadInitialData()
 	t.app.SetRoot(t.root, true)
+	t.startActiveSessionsRefresh()
+	defer t.stopActiveSessionsRefresh()
 	t.logger.Infow("starting TUI application", "version", t.version, "commit", t.commit)
 	if err := t.app.Run(); err != nil {
 		t.logger.Errorw("application run error", "error", err)
@@ -202,6 +209,55 @@ func (t *tui) loadActiveSessions() {
 	t.sessions.SetSessions(sessions)
 }
 
+func (t *tui) startActiveSessionsRefresh() {
+	if t.app == nil || t.serverService == nil || t.activeSessionsRefreshStop != nil {
+		return
+	}
+
+	stop := make(chan struct{})
+	t.activeSessionsRefreshStop = stop
+
+	go func() {
+		ticker := time.NewTicker(activeSessionsRefreshInterval)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ticker.C:
+				t.refreshActiveSessionsFromBackground()
+			case <-stop:
+				return
+			}
+		}
+	}()
+}
+
+func (t *tui) stopActiveSessionsRefresh() {
+	if t.activeSessionsRefreshStop == nil {
+		return
+	}
+	close(t.activeSessionsRefreshStop)
+	t.activeSessionsRefreshStop = nil
+}
+
+func (t *tui) refreshActiveSessionsFromBackground() {
+	sessions, err := t.serverService.ListActiveSessions()
+	if t.app == nil {
+		return
+	}
+
+	t.app.QueueUpdateDraw(func() {
+		if t.sessions == nil {
+			return
+		}
+		if err != nil {
+			t.sessions.SetText(colorText(CurrentTheme.Error, "Failed to load active sessions"))
+			return
+		}
+		t.sessions.SetSessions(sessions)
+	})
+}
+
 func (t *tui) updateListTitle() {
 	if t.serverList != nil {
 		t.serverList.SetTitle(" 1 Servers — Sort: " + t.sortMode.String() + " ")