package app

import (
	"fmt"
	"strconv"
	"strings"
)

func parsePort(raw string) int {
	p := strings.TrimSpace(raw)
	if p == "" {
		return 0
	}
	n, err := strconv.Atoi(p)
	if err != nil || n <= 0 || n > 65535 {
		return 0
	}
	return n
}

func asString(v any) string {
	switch vv := v.(type) {
	case string:
		return strings.TrimSpace(vv)
	case nil:
		return ""
	default:
		return strings.TrimSpace(fmt.Sprint(vv))
	}
}