优化: 资源消耗优化，发布 v0.2.1

internal/app.go

@@ -2,6 +2,8 @@ package internal
 
 import (
 	"fmt"
+	"os"
+	"time"
 
 	"charm.land/bubbletea/v2"
 )
@@ -22,6 +24,11 @@ type Model struct {
 	wsTabCur   int   // tabs 列光标 (0..len(Groups), 最后一个是历史入口)
 	forkMode    bool  // 分叉输入模式
 	forkBuf     string // 分叉方向提示输入
+
+	// 性能缓存
+	allSessionsCache []*Session // "全部" tab 会话切片缓存
+	allSessionsDirty bool       // 缓存是否需要重建
+	cacheDirty       bool       // session-cache.json 是否需要写盘
 }
 
 func NewModel() *Model {
@@ -52,6 +59,8 @@ func (m *Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		m.history.Cache = msg.Cache
 		m.history.Loaded = true
 		m.history.Scanning = false
+		m.allSessionsDirty = true
+		m.cacheDirty = true
 		if m.history.Favorites == nil {
 			m.history.Favorites = loadFavorites()
 		}
@@ -77,7 +86,9 @@ func (m *Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		return m, nil
 	case SummaryResultMsg:
 		m.applySummary(msg.SessionID, msg.Summary, msg.Completed, msg.Pending)
-		return m, m.nextSummaryCmd()
+		m.cacheDirty = true
+		cmds := []tea.Cmd{m.nextSummaryCmd(), cacheFlushTick()}
+		return m, tea.Batch(cmds...)
 	case UpdateAvailableMsg:
 		m.update.Checking = false
 		m.update.Available = true
@@ -94,6 +105,12 @@ func (m *Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		m.update.Updating = false
 		m.update.Error = msg.Err
 		m.update.Checking = false
+	case cacheFlushMsg:
+		m.flushCache()
+		return m, nil
+	case tea.QuitMsg:
+		m.flushCache()
+		return m, tea.Quit
 	}
 	return m, nil
 }
@@ -101,3 +118,21 @@ func (m *Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 func (m *Model) GetPendingCmd() string {
 	return m.pendingCmd
 }
+
+func (m *Model) flushCache() {
+	if !m.cacheDirty || m.history.Cache == nil {
+		return
+	}
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return
+	}
+	saveCache(home, m.history.Cache)
+	m.cacheDirty = false
+}
+
+func cacheFlushTick() tea.Cmd {
+	return tea.Tick(3*time.Second, func(_ time.Time) tea.Msg {
+		return cacheFlushMsg{}
+	})
+}