check if using interface is the way to go in Daemon.Run

daemon.go

@@ -37,6 +37,9 @@ func (d *Daemon) Run(p Process) (*process, error) {
 	// increment count by 1
 	atomic.AddUint32(&d.count, 1)
 
+	// to print remaininig seconds to start cmd == nil
+	d.process = p.GetProcess()
+
 	time.Sleep(time.Duration(d.cfg.Wait) * time.Second)
 
 	if d.process, err = p.Start(); err != nil {

process.go

@@ -15,6 +15,7 @@ type Process interface {
 	Pid() int
 	Signal(sig syscall.Signal) error
 	Start() (*process, error)
+	GetProcess() *process
 }
 
 type process struct {
@@ -166,6 +167,11 @@ func (p *process) Signal(sig syscall.Signal) error {
 	return syscall.Kill(p.cmd.Process.Pid, sig)
 }
 
+// GetProccess
+func (p *process) GetProcess() *process {
+	return p
+}
+
 // NewProcess return process instance
 func NewProcess(cfg *Config) *process {
 	qch := make(chan struct{})
@@ -179,5 +185,6 @@ func NewProcess(cfg *Config) *process {
 		},
 		errch: make(chan error, 1),
 		quit:  qch,
+		sTime: time.Now(),
 	}
 }

socket.go

@@ -9,6 +9,7 @@ import (
 	"path/filepath"
 	"strings"
 	"sync/atomic"
+	"time"
 
 	"github.com/nbari/violetear"
 )
@@ -46,7 +47,7 @@ func (d *Daemon) HandleStatus(w http.ResponseWriter, r *http.Request) {
 	}
 
 	//  only if process is running
-	if d.process != nil {
+	if d.process.cmd != nil {
 		status.Fpid = d.fpid
 		status.Pid = d.process.Pid()
 		if d.process.eTime.IsZero() {
@@ -55,7 +56,8 @@ func (d *Daemon) HandleStatus(w http.ResponseWriter, r *http.Request) {
 			status.Down = AbsSince(d.process.eTime)
 		}
 	} else {
-		status.Status = fmt.Sprintf("Waiting %d seconds before starting", d.cfg.Wait)
+		startin := d.process.sTime.Add(time.Duration(d.cfg.Wait) * time.Second)
+		status.Status = fmt.Sprintf("Starting in %0.1f seconds", startin.Sub(time.Now()).Seconds())
 	}
 
 	// return status in json