ring the doorbell

main.go

package main

import (
	"sync"
	"time"

	"github.com/evalphobia/google-home-client-go/googlehome"
	"github.com/hashicorp/mdns"
)

func main() {
	wg := sync.WaitGroup{}
	entriesCh := make(chan *mdns.ServiceEntry, 4)
	wg.Add(1)
	go func() {
		defer wg.Done()
		mdns.Lookup("_googlerpc._tcp", entriesCh)
		close(entriesCh)

	}()

	for g := range entriesCh {

		wg.Add(1)
		go func(address string) {
			defer wg.Done()
			cli, err := googlehome.NewClientWithConfig(googlehome.Config{
				Hostname: address,
				Lang:     "en",
				Accent:   "GB",
			})
			if err != nil {
				panic(err)
			}
			oldvolume, _ := cli.GetVolume()
			// Speak text on Google Home.
			cli.SetVolume(0.5)
			cli.Notify("There is someone at the door")
			time.Sleep(4 * time.Second)
			//Kills the running Application (Disconnects from Google Home)

			cli.SetVolume(oldvolume)
			cli.QuitApp()

		}(g.AddrV4.String())

	}
	wg.Wait()
}