feat: implement service history view and tracking

cmd/cli/main.go

@@ -15,17 +15,28 @@ import (
 )
 
 var baseStyle = lipgloss.NewStyle().
+	BorderStyle(lipgloss.NormalBorder()).
 	BorderStyle(lipgloss.NormalBorder()).
 	BorderForeground(lipgloss.Color("240"))
 
+type viewState int
+
+const (
+	viewList viewState = iota
+	viewDetail
+)
+
 type model struct {
-	table    table.Model
-	services []models.Service
-	user     string
-	err      error
-	message  string
-	width    int
-	height   int
+	table        table.Model
+	services     []models.Service
+	user         string
+	err          error
+	message      string
+	width        int
+	height       int
+	state        viewState
+	history      []models.HistoryEntry
+	historyTable table.Model
 }
 
 type tickMsg time.Time
@@ -37,6 +48,10 @@ func tick() tea.Cmd {
 }
 
 func (m model) Init() tea.Cmd {
+	// If in detail view, only tick (no auto refresh of history for now to keep it simple)
+	if m.state == viewDetail {
+		return tick()
+	}
 	return tea.Batch(fetchServices, tick())
 }
 
@@ -48,8 +63,25 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	case tea.KeyMsg:
 		switch msg.String() {
 		case "esc", "q", "ctrl+c":
+			if m.state == viewDetail {
+				m.state = viewList
+				m.table.Focus()
+				return m, nil
+			}
 			return m, tea.Quit
+		case "d":
+			if m.state == viewList {
+				selected := m.table.SelectedRow()
+				if selected != nil {
+					serviceName := selected[0]
+					m.state = viewDetail
+					return m, fetchHistoryCmd(serviceName)
+				}
+			}
 		case "enter":
+			if m.state == viewDetail {
+				return m, nil
+			}
 			selected := m.table.SelectedRow()
 			if selected == nil {
 				return m, nil
@@ -139,10 +171,29 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		}
 		m.table.SetRows(rows)
 		m.message = "Refreshed"
+	case []models.HistoryEntry:
+		m.history = msg
+		rows := []table.Row{}
+		for _, h := range msg {
+			rows = append(rows, table.Row{
+				h.Action,
+				h.User,
+				h.Timestamp.Format("2006-01-02 15:04:05"),
+			})
+		}
+		m.historyTable.SetRows(rows)
+		// Update footer logic to resize history table if needed
+		m.historyTable.SetWidth(m.width - 10)
+		m.historyTable.SetHeight(m.table.Height())
 	case error:
 		m.err = msg
 	}
-	m.table, cmd = m.table.Update(msg)
+
+	if m.state == viewList {
+		m.table, cmd = m.table.Update(msg)
+	} else {
+		m.historyTable, cmd = m.historyTable.Update(msg)
+	}
 	return m, cmd
 }
 
@@ -191,12 +242,23 @@ func (m model) View() string {
 		Align(lipgloss.Center).
 		Width(contentWidth)
 
+	var mainView string
+	if m.state == viewList {
+		mainView = m.table.View()
+	} else {
+		// History View
+		mainView = lipgloss.JoinVertical(lipgloss.Left,
+			"History for selected service:",
+			m.historyTable.View(),
+		)
+	}
+
 	// Render Content
 	content := lipgloss.JoinVertical(lipgloss.Left,
 		headerStyle.Render("🛡️  ENV-GUARD v1.0"),
 		infoStyle.Render(userInfo),
-		m.table.View(),
-		footerStyle.Render("[↑/↓] Navigate  [Enter] Toggle Lock  [r] Refresh  [q] Quit"),
+		mainView,
+		footerStyle.Render("[↑/↓] Navigate  [Enter] Toggle Lock  [d] History  [r] Refresh  [q] Quit"),
 	)
 
 	// Create Border Style locally
@@ -221,6 +283,16 @@ func fetchServices() tea.Msg {
 	return services
 }
 
+func fetchHistoryCmd(serviceName string) tea.Cmd {
+	return func() tea.Msg {
+		hist, err := api.GetHistory(serviceName)
+		if err != nil {
+			return err
+		}
+		return hist
+	}
+}
+
 func main() {
 	serverURL := flag.String("server", "http://localhost:8080", "URL of the EnvGuard server")
 	flag.Parse()
@@ -257,9 +329,23 @@ func main() {
 		Bold(false)
 	t.SetStyles(s)
 
+	// History Table
+	hCols := []table.Column{
+		{Title: "ACTION", Width: 10},
+		{Title: "USER", Width: 15},
+		{Title: "TIME", Width: 20},
+	}
+	ht := table.New(
+		table.WithColumns(hCols),
+		table.WithFocused(true),
+		table.WithHeight(10),
+	)
+	ht.SetStyles(s)
+
 	m := model{
-		table: t,
-		user:  user,
+		table:        t,
+		historyTable: ht,
+		user:         user,
 	}
 
 	if _, err := tea.NewProgram(m, tea.WithAltScreen()).Run(); err != nil {

cmd/server/main.go

@@ -13,10 +13,12 @@ import (
 )
 
 var (
-	services = []models.Service{}
-	mu       sync.Mutex
-	dataFile = "services.json"
-	apiToken = "ENVGUARD_SECRET_TOKEN"
+	services    = []models.Service{}
+	history     = []models.HistoryEntry{}
+	mu          sync.Mutex
+	dataFile    = "services.json"
+	historyFile = "history.json"
+	apiToken    = "ENVGUARD_SECRET_TOKEN"
 )
 
 func main() {
@@ -33,7 +35,14 @@ func main() {
 		fmt.Printf("✅ %d servicios cargados desde disco\n", len(services))
 	}
 
+	if err := loadHistory(); err != nil {
+		log.Printf("⚠️ No se pudo cargar history.json: %v", err)
+	} else {
+		fmt.Printf("📜 %d entradas de historial cargadas\n", len(history))
+	}
+
 	http.HandleFunc("/services", authMiddleware(handleServices))
+	http.HandleFunc("/history", authMiddleware(handleHistory))
 	http.HandleFunc("/lock", authMiddleware(handleLock))
 	http.HandleFunc("/unlock", authMiddleware(handleUnlock))
 
@@ -64,6 +73,30 @@ func saveServices() error {
 	return encoder.Encode(services)
 }
 
+func loadHistory() error {
+	file, err := os.Open(historyFile)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil
+		}
+		return err
+	}
+	defer file.Close()
+	return json.NewDecoder(file).Decode(&history)
+}
+
+func saveHistory() error {
+	file, err := os.Create(historyFile)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	encoder := json.NewEncoder(file)
+	encoder.SetIndent("", "  ")
+	return encoder.Encode(history)
+}
+
 func handleServices(w http.ResponseWriter, r *http.Request) {
 	mu.Lock()
 	defer mu.Unlock()
@@ -101,6 +134,15 @@ func handleLock(w http.ResponseWriter, r *http.Request) {
 				log.Printf("Error guardando estado: %v", err)
 			}
 
+			// Add to history
+			history = append(history, models.HistoryEntry{
+				ServiceName: req.ServiceName,
+				Action:      "LOCK",
+				User:        req.User,
+				Timestamp:   time.Now(),
+			})
+			saveHistory()
+
 			w.WriteHeader(http.StatusOK)
 			return
 		}
@@ -142,6 +184,15 @@ func handleUnlock(w http.ResponseWriter, r *http.Request) {
 				log.Printf("Error guardando estado: %v", err)
 			}
 
+			// Add to history
+			history = append(history, models.HistoryEntry{
+				ServiceName: req.ServiceName,
+				Action:      "UNLOCK",
+				User:        req.User,
+				Timestamp:   time.Now(),
+			})
+			saveHistory()
+
 			w.WriteHeader(http.StatusOK)
 			return
 		}
@@ -150,6 +201,27 @@ func handleUnlock(w http.ResponseWriter, r *http.Request) {
 	http.Error(w, "Service not found", http.StatusNotFound)
 }
 
+func handleHistory(w http.ResponseWriter, r *http.Request) {
+	serviceName := r.URL.Query().Get("service")
+	mu.Lock()
+	defer mu.Unlock()
+
+	var result []models.HistoryEntry
+	for _, h := range history {
+		if serviceName == "" || h.ServiceName == serviceName {
+			result = append(result, h)
+		}
+	}
+
+	// Reverse order (newest first)
+	for i, j := 0, len(result)-1; i < j; i, j = i+1, j-1 {
+		result[i], result[j] = result[j], result[i]
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(result)
+}
+
 func authMiddleware(next http.HandlerFunc) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		token := r.Header.Get("X-API-Key")