// GetCreateFlags registers the flags this driver adds to
// "docker hosts create"
func GetCreateFlags() []cli.Flag {
	return []cli.Flag{
		cli.StringFlag{
			Name:  "generic-ip-address",
			Usage: "IP Address of machine",
			Value: "",
		},
		cli.StringFlag{
			Name:  "generic-ssh-user",
			Usage: "SSH user",
			Value: "root",
		},
		cli.StringFlag{
			Name:  "generic-ssh-key",
			Usage: "SSH private key path",
			Value: filepath.Join(mcnutils.GetHomeDir(), ".ssh", "id_rsa"),
		},
		cli.IntFlag{
			Name:  "generic-ssh-port",
			Usage: "SSH port",
			Value: 22,
		},
	}
}
func (d *Driver) Create() error {
	var (
		err error
	)

	// Check that VBoxManage exists and works
	if err = vbm(); err != nil {
		return err
	}

	b2dutils := mcnutils.NewB2dUtils("", "", d.GlobalArtifactPath())
	if err := b2dutils.CopyIsoToMachineDir(d.Boot2DockerURL, d.MachineName); err != nil {
		return err
	}

	log.Infof("Creating VirtualBox VM...")

	// import b2d VM if requested
	if d.Boot2DockerImportVM != "" {
		name := d.Boot2DockerImportVM

		// make sure vm is stopped
		_ = vbm("controlvm", name, "poweroff")

		diskInfo, err := getVMDiskInfo(name)
		if err != nil {
			return err
		}

		if _, err := os.Stat(diskInfo.Path); err != nil {
			return err
		}

		if err := vbm("clonehd", diskInfo.Path, d.diskPath()); err != nil {
			return err
		}

		log.Debugf("Importing VM settings...")
		vmInfo, err := getVMInfo(name)
		if err != nil {
			return err
		}

		d.CPU = vmInfo.CPUs
		d.Memory = vmInfo.Memory

		log.Debugf("Importing SSH key...")
		keyPath := filepath.Join(mcnutils.GetHomeDir(), ".ssh", "id_boot2docker")
		if err := mcnutils.CopyFile(keyPath, d.GetSSHKeyPath()); err != nil {
			return err
		}
	} else {
		log.Infof("Creating SSH key...")
		if err := ssh.GenerateSSHKey(d.GetSSHKeyPath()); err != nil {
			return err
		}

		log.Debugf("Creating disk image...")
		if err := d.generateDiskImage(d.DiskSize); err != nil {
			return err
		}
	}

	if err := vbm("createvm",
		"--basefolder", d.LocalArtifactPath("."),
		"--name", d.MachineName,
		"--register"); err != nil {
		return err
	}

	log.Debugf("VM CPUS: %d", d.CPU)
	log.Debugf("VM Memory: %d", d.Memory)

	cpus := d.CPU
	if cpus < 1 {
		cpus = int(runtime.NumCPU())
	}
	if cpus > 32 {
		cpus = 32
	}

	if err := vbm("modifyvm", d.MachineName,
		"--firmware", "bios",
		"--bioslogofadein", "off",
		"--bioslogofadeout", "off",
		"--bioslogodisplaytime", "0",
		"--biosbootmenu", "disabled",
		"--ostype", "Linux26_64",
		"--cpus", fmt.Sprintf("%d", cpus),
		"--memory", fmt.Sprintf("%d", d.Memory),
		"--acpi", "on",
		"--ioapic", "on",
		"--rtcuseutc", "on",
		"--natdnshostresolver1", "off",
		"--natdnsproxy1", "off",
		"--cpuhotplug", "off",
		"--pae", "on",
		"--hpet", "on",
		"--hwvirtex", "on",
		"--nestedpaging", "on",
		"--largepages", "on",
		"--vtxvpid", "on",
		"--accelerate3d", "off",
		"--boot1", "dvd"); err != nil {
		return err
	}

	if err := vbm("modifyvm", d.MachineName,
		"--nic1", "nat",
		"--nictype1", "82540EM",
		"--cableconnected1", "on"); err != nil {
		return err
	}

	if err := d.setupHostOnlyNetwork(d.MachineName); err != nil {
		return err
	}

	if err := vbm("storagectl", d.MachineName,
		"--name", "SATA",
		"--add", "sata",
		"--hostiocache", "on"); err != nil {
		return err
	}

	if err := vbm("storageattach", d.MachineName,
		"--storagectl", "SATA",
		"--port", "0",
		"--device", "0",
		"--type", "dvddrive",
		"--medium", d.LocalArtifactPath("boot2docker.iso")); err != nil {
		return err
	}

	if err := vbm("storageattach", d.MachineName,
		"--storagectl", "SATA",
		"--port", "1",
		"--device", "0",
		"--type", "hdd",
		"--medium", d.diskPath()); err != nil {
		return err
	}

	// let VBoxService do nice magic automounting (when it's used)
	if err := vbm("guestproperty", "set", d.MachineName, "/VirtualBox/GuestAdd/SharedFolders/MountPrefix", "/"); err != nil {
		return err
	}
	if err := vbm("guestproperty", "set", d.MachineName, "/VirtualBox/GuestAdd/SharedFolders/MountDir", "/"); err != nil {
		return err
	}

	var shareName, shareDir string // TODO configurable at some point
	switch runtime.GOOS {
	case "windows":
		shareName = "c/Users"
		shareDir = "c:\\Users"
	case "darwin":
		shareName = "Users"
		shareDir = "/Users"
		// TODO "linux"
	}

	if shareDir != "" && !d.NoShare {
		log.Debugf("setting up shareDir")
		if _, err := os.Stat(shareDir); err != nil && !os.IsNotExist(err) {
			return err
		} else if !os.IsNotExist(err) {
			if shareName == "" {
				// parts of the VBox internal code are buggy with share names that start with "/"
				shareName = strings.TrimLeft(shareDir, "/")
				// TODO do some basic Windows -> MSYS path conversion
				// ie, s!^([a-z]+):[/\\]+!\1/!; s!\\!/!g
			}

			// woo, shareDir exists!  let's carry on!
			if err := vbm("sharedfolder", "add", d.MachineName, "--name", shareName, "--hostpath", shareDir, "--automount"); err != nil {
				return err
			}

			// enable symlinks
			if err := vbm("setextradata", d.MachineName, "VBoxInternal2/SharedFoldersEnableSymlinksCreate/"+shareName, "1"); err != nil {
				return err
			}
		}
	}

	log.Infof("Starting VirtualBox VM...")

	if err := d.Start(); err != nil {
		return err
	}

	return nil
}