package models

import (
	"errors"
	"fmt"
	"github.com/grandcat/zeroconf"
	"net"
)

// Online 在线数据
type Online struct {
	AddrIPv4 []net.IP `json:"-"` // Host machine IPv4 address
	AddrIPv6 []net.IP `json:"-"`
	Port     int      `json:"port"`
	ID       string   `json:"id"`
	Ip       string   `json:"ip"`
}

func (o *Online) Url(router string) string {
	return fmt.Sprintf("http://%s:%d%s", o.Ip, o.Port, router)
}

func UserTOnlineList(user *Users) []string {
	return []string{
		user.ID,
		user.Ip,
	}
}

func NewOnline(entry *zeroconf.ServiceEntry) (*Online, error) {
	if len(entry.Text) != 2 {
		return nil, errors.New("invalid online entry")
	}

	return &Online{
		AddrIPv4: entry.AddrIPv4,
		AddrIPv6: entry.AddrIPv6,
		Port:     entry.Port,
		ID:       entry.Text[0],
		Ip:       entry.Text[1],
	}, nil
}