test terminal typing

internal/terminal/terminal.go

@@ -9,6 +9,7 @@ import (
 	"os/exec"
 	"sync"
 	"syscall"
+	"time"
 
 	"github.com/creack/pty"
 
@@ -30,11 +31,13 @@ type Terminal struct {
 	ptmx *os.File
 	cmd  *exec.Cmd
 
-	mu      sync.Mutex
-	backlog []byte
-	clients map[chan []byte]bool
-	exit    string
-	exited  bool
+	mu         sync.Mutex
+	backlog    []byte
+	clients    map[chan []byte]bool
+	exit       string
+	exited     bool
+	started    time.Time
+	lastOutput time.Time
 }
 
 func New() *Terminals {
@@ -68,7 +71,7 @@ func (ts *Terminals) Attach(t api.Task, size api.TerminalSize) (*Terminal, error
 		return nil, fmt.Errorf("start %s: %w", shell, err)
 	}
 
-	term = &Terminal{ptmx: ptmx, cmd: cmd, clients: map[chan []byte]bool{}}
+	term = &Terminal{ptmx: ptmx, cmd: cmd, clients: map[chan []byte]bool{}, started: time.Now()}
 	ts.byTask[t.Id] = term
 	slog.Info("terminal started", "task", t.Id, "shell", shell, "pid", cmd.Process.Pid)
 	go func() {
@@ -144,6 +147,7 @@ func (term *Terminal) output(b []byte) {
 	term.mu.Lock()
 	defer term.mu.Unlock()
 
+	term.lastOutput = time.Now()
 	term.backlog = append(term.backlog, b...)
 	if len(term.backlog) > 2*backlogSize {
 		term.backlog = bytes.Clone(term.backlog[len(term.backlog)-backlogSize:])
@@ -192,6 +196,12 @@ func (term *Terminal) ExitStatus() (string, bool) {
 	return term.exit, term.exited
 }
 
+func (term *Terminal) Activity() (started, lastOutput time.Time) {
+	term.mu.Lock()
+	defer term.mu.Unlock()
+	return term.started, term.lastOutput
+}
+
 func (term *Terminal) Write(b []byte) error {
 	_, err := term.ptmx.Write(b)
 	return err