package ui

import (
	"fmt"

	"varia.zone/hui/internal/bldr"
	"varia.zone/hui/internal/conf"
	"varia.zone/hui/internal/model"
)

var allStackPages = []string{
	conf.BusyStackPage,
	conf.ContentStackPage,
	conf.EmptyStackPage,
	conf.InitStackPage,
}

// SwitchStackPage switches to a chosen stack page.
func SwitchStackPage(m *model.Model, stackPageName string, args ...string) error {
	for _, spn := range allStackPages {
		stackPage, err := bldr.GetBox(m.Builder, spn)
		if err != nil {
			return fmt.Errorf("ShowStackPage: %s", err)
		}

		if spn == stackPageName {
			stackPage.Show()

			if spn == conf.BusyStackPage {
				if err := showBusyMessage(m, args...); err != nil {
					return fmt.Errorf("ShowStackPage: %s", err)
				}
			}
		} else {
			stackPage.Hide()
		}
	}

	return nil
}

func showBusyMessage(m *model.Model, args ...string) error {
	label, err := bldr.GetLabel(m.Builder, conf.BusyStackLabel)
	if err != nil {
		return fmt.Errorf("showBusyMessage: %s", err)
	}

	msg := args[0]
	label.SetLabel(msg)

	return nil
}