package clock

import (
	"time"

	"github.com/gdamore/tcell/v2"
	"github.com/rivo/tview"
)

const (
	interval = 1 * time.Second
	format   = "15:04:05"
)

func New(app *tview.Application) *tview.TextView {
	view := tview.NewTextView()
	view.SetTextAlign(tview.AlignCenter)
	view.SetBackgroundColor(tcell.ColorDefault)
	view.SetText(time.Now().Format(format))
	view.SetBorderPadding(1, 1, 1, 1)
	go refresh(app, view)
	return view
}

func refresh(app *tview.Application, view *tview.TextView) {
	tick := time.NewTicker(interval)

	for {
		select {
		case <-tick.C:
			view.SetText(time.Now().Format(format))
			app.Draw()
		}
	}
}