package app

import (
	"encoding/json"
	"os"
	"strings"
)

func loadRoutesClearCacheMeta() (routesClearCacheMeta, error) {
	data, err := os.ReadFile(routesCacheMeta)
	if err != nil {
		return routesClearCacheMeta{}, err
	}
	var meta routesClearCacheMeta
	if err := json.Unmarshal(data, &meta); err != nil {
		return routesClearCacheMeta{}, err
	}
	return meta, nil
}

func ifaceOrDash(iface string) string {
	if strings.TrimSpace(iface) == "" {
		return "-"
	}
	return iface
}