func Display()

in pkg/display/graph/dashboard/global.go [237:304]
56 lines of code
10 McCabe index (conditional complexity)

func Display(ctx context.Context, data *dashboard.GlobalData) error {
	t, err := termbox.New(termbox.ColorMode(terminalapi.ColorMode256))
	if err != nil {
		return err
	}
	defer t.Close()

	c, err := container.New(
		t,
		container.Border(linestyle.Light),
		container.BorderTitle("[Global Dashboard]-PRESS Q TO QUIT"),
		container.ID(rootID))
	if err != nil {
		return err
	}

	te, err := dashboard.LoadTemplate(ctx.Value(contextkey.DashboardTemplate{}).(string))
	if err != nil {
		return err
	}
	template = te

	// Initialization
	allWidgets = &widgets{
		gauges:  nil,
		linears: nil,
		heatmap: nil,
		buttons: nil,
	}
	err = newWidgets(data)
	if err != nil {
		return err
	}
	lb, err := newLayoutButtons(c)
	if err != nil {
		return err
	}
	allWidgets.buttons = lb

	gridOpts, err := gridLayout(layoutMetrics)
	if err != nil {
		return err
	}

	if e := c.Update(rootID, gridOpts...); e != nil {
		return e
	}

	var cancel context.CancelFunc
	ctx, cancel = context.WithCancel(ctx)
	quitter := func(keyboard *terminalapi.Keyboard) {
		if strings.EqualFold(keyboard.Key.String(), "q") {
			cancel()
		}
	}

	refreshInterval := time.Duration(ctx.Value(contextkey.DashboardRefreshInterval{}).(int)) * time.Second
	dt := ctx.Value(contextkey.DurationType{}).(utils.DurationType)

	// Only when users use the relative time, the duration will be adjusted to refresh.
	if dt != utils.BothPresent {
		go refresh(ctx, refreshInterval)
	}

	err = termdash.Run(ctx, t, c, termdash.KeyboardSubscriber(quitter), termdash.RedrawInterval(refreshInterval))

	return err
}