package mount

import (
	"errors"
	"log"
	"os"

	"bazil.org/fuse"
	"github.com/mdlayher/sdnotify"
)

func Mount(mountpoint string) error {
	n, err := sdnotify.New()
	if err != nil && !errors.Is(err, os.ErrNotExist) {
		log.Fatalf("failed to open systemd notifier: %v", err)
	}
	err = n.Notify(
		sdnotify.Statusf("service started successfully"),
		sdnotify.Ready,
	)
	if err != nil {
		log.Fatalf("failed to send ready notification: %v", err)
	}
	return Unmount(mountpoint, n)
}

func Unmount(mountpoint string, n *sdnotify.Notifier) error {
	log.Println("Unmounting...")
	err := n.Notify(
		sdnotify.Statusf("service stopped successfully"),
		sdnotify.Ready,
	)
	if err != nil {
		log.Fatalf("failed to send stop notification: %v", err)
	}
	fuse.Unmount(mountpoint)
	return nil
}