use tea model for showing server runnign and closing

pkg/web/web.go

@@ -6,14 +6,19 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"os"
+	"os/signal"
 	"strings"
+	"syscall"
 	"time"
 
+	"charm.land/lipgloss/v2"
 	"github.com/LazyBachelor/LazyPM/internal/app"
 	"github.com/LazyBachelor/LazyPM/internal/models"
 	"github.com/LazyBachelor/LazyPM/internal/utils/browser"
 	"github.com/LazyBachelor/LazyPM/pkg/web/handler"
 	"github.com/LazyBachelor/LazyPM/pkg/web/server"
+	tea "github.com/charmbracelet/bubbletea"
 )
 
 type Config = models.Config
@@ -32,12 +37,50 @@ func New() *Web {
 //go:embed assets/*
 var assets embed.FS
 
+type tuiModel struct {
+	width    int
+	height   int
+	address  string
+	quitChan chan struct{}
+}
+
+func (m tuiModel) Init() tea.Cmd {
+	return nil
+}
+
+func (m tuiModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		return m, nil
+	case tea.KeyMsg:
+		switch msg.String() {
+		case "q", "esc", "ctrl+c":
+			select {
+			case <-m.quitChan:
+			default:
+				close(m.quitChan)
+			}
+			return m, tea.Quit
+		}
+	}
+
+	return m, nil
+}
+
+func (m tuiModel) View() string {
+	return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center, fmt.Sprintf(
+		"Web server running at %s\n\nPress q, esc, or Ctrl+C to stop the task and server.\n",
+		m.address,
+	))
+}
+
 func (w *Web) Run(ctx context.Context, config Config) error {
 	app, cleanup, err := app.New(ctx, config)
 	if err != nil {
 		return err
 	}
-
 	defer cleanup()
 
 	httpServer := server.NewServer(server.Server{
@@ -46,21 +89,39 @@ func (w *Web) Run(ctx context.Context, config Config) error {
 		App:     app,
 	})
 
-	fmt.Printf("Starting web server on %s...\n", config.WebAddress)
-
 	address := config.WebAddress
 	if !strings.Contains(address, "http") {
 		address = "http://localhost" + address
 	}
 
-	err = browser.Open(address)
-	if err != nil {
-		return fmt.Errorf("failed to open browser: %w", err)
-	}
-
 	serverErr := make(chan error, 1)
+	uiQuitChan := make(chan struct{})
+
+	screen := tea.NewProgram(
+		tuiModel{
+			address:  address,
+			quitChan: uiQuitChan,
+		},
+		tea.WithAltScreen(),
+	)
+
+	screenDone := make(chan struct{})
+
 	go func() {
-		if err := httpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
+		defer close(screenDone)
+
+		if _, err := screen.Run(); err != nil {
+			fmt.Printf("failed to start terminal UI: %s\n", err)
+		}
+	}()
+
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
+	defer signal.Stop(sigChan)
+
+	go func() {
+		if err := httpServer.ListenAndServe(); err != nil &&
+			!errors.Is(err, http.ErrServerClosed) {
 			serverErr <- err
 		}
 	}()
@@ -77,17 +138,36 @@ func (w *Web) Run(ctx context.Context, config Config) error {
 		handler.SetSubmitChan(w.submitChan)
 	}
 
+	if err := browser.Open(address); err != nil {
+		fmt.Printf("failed to open browser: %s\n", err)
+	}
+
+	var shutdownMsg string
+
 	select {
 	case <-w.quitChan:
-		fmt.Println("Task completed! Shutting down server...")
-		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-		defer cancel()
-		return httpServer.Shutdown(shutdownCtx)
-	case err := <-serverErr:
-		return err
+		shutdownMsg = "Task completed! Ending task and server..."
+	case <-uiQuitChan:
+		shutdownMsg = "Quit key pressed. Ending task and server..."
+	case sig := <-sigChan:
+		shutdownMsg = fmt.Sprintf("Received signal %s. Ending task and server...", sig)
 	case <-ctx.Done():
-		return httpServer.Shutdown(context.Background())
+		shutdownMsg = "Context cancelled. Ending task and server..."
+	case err := <-serverErr:
+		screen.Quit()
+		<-screenDone
+		return err
 	}
+
+	screen.Quit()
+	<-screenDone
+
+	fmt.Println(shutdownMsg)
+
+	shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	return httpServer.Shutdown(shutdownCtx)
 }
 
 func (w *Web) SetChannels(feedbackChan chan ValidationFeedback, quitChan chan bool) {