package cmd

import (
	"log"
	"net"

	"github.com/spf13/cobra"
)

var (
	ip    net.IP
	port  uint16
	proto string
	v6    bool
)

var rootCmd = &cobra.Command{
	Use:   "protohacking",
	Short: "Protohackers challenge servers",
	Run: func(cmd *cobra.Command, args []string) {
		cmd.Help()
	},
}

func init() {
	pflags := rootCmd.PersistentFlags()
	pflags.Uint16VarP(&port, "port", "p", 8088, "Port to TCP listen on")
	pflags.IPVarP(&ip, "ip", "i", net.IPv6unspecified, "Address to listen on")
	pflags.BoolVarP(&v6, "v6", "6", true, "Whether to use IPv6")
	pflags.StringVar(&proto, "proto", "tcp", "Either tcp or udp")
}

func Execute() {
	if err := rootCmd.Execute(); err != nil {
		log.Fatal("fatal error", "err", err)
	}
}