main.go

package main

import (
	"context"
	"errors"
	"log"
	"net"
	"os"
	"os/signal"
	"syscall"
	"time"

	tea "github.com/charmbracelet/bubbletea"
	"github.com/charmbracelet/ssh"
	"github.com/charmbracelet/wish"
	"github.com/charmbracelet/wish/bubbletea"
	"github.com/charmbracelet/wish/logging"
)

const (
	host = "0.0.0.0"
	port = "2222"
)

func main() {

	if len(os.Args) > 1 && os.Args[1] == "--serve" {
		serve()
	} else {
		runLocal()
	}
}

func runLocal() {
	p := tea.NewProgram(
		initialModel(),
		tea.WithAltScreen(),
	)
	if _, err := p.Run(); err != nil {
		log.Fatal(err)
	}
}

func serve() {
	s, err := wish.NewServer(
		wish.WithAddress(net.JoinHostPort(host, port)),
		wish.WithHostKeyPath(".ssh/term_info_ed25519"),
		wish.WithPublicKeyAuth(func(ctx ssh.Context, key ssh.PublicKey) bool {
			return true
		}),
		wish.WithPasswordAuth(func(ctx ssh.Context, password string) bool {
			return true
		}),
		wish.WithMiddleware(
			bubbletea.Middleware(teaHandler),
			logging.Middleware(),
		),
	)
	if err != nil {
		log.Fatal("Erro ao criar servidor SSH:", err)
	}

	done := make(chan os.Signal, 1)
	signal.Notify(done, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)

	log.Printf("🚀 Servidor SSH rodando em %s:%s", host, port)
	log.Printf("   Conecte com: ssh -p %s localhost", port)
	log.Printf("   Ctrl+C para parar\n")

	go func() {
		if err := s.ListenAndServe(); err != nil && !errors.Is(err, ssh.ErrServerClosed) {
			log.Fatal("Erro ao escutar:", err)
		}
	}()

	<-done

	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	if err := s.Shutdown(ctx); err != nil {
		log.Fatal("Erro ao encerrar:", err)
	}

	log.Println("Servidor encerrado.")
}

func teaHandler(s ssh.Session) (tea.Model, []tea.ProgramOption) {
	pty, _, _ := s.Pty()

	m := initialModel()
	m.width = pty.Window.Width
	m.height = pty.Window.Height

	return m, []tea.ProgramOption{tea.WithAltScreen()}
}