// Copyright (c) 2017 Oracle America, Inc.
// The contents of this file are subject to the Mozilla Public License Version
// 2.0 (the "License"); you may not use this file except in compliance with the
// License. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/

package bmcs

import (
	"fmt"

	packerssh "github.com/hashicorp/packer/communicator/ssh"
	"github.com/mitchellh/multistep"
	"golang.org/x/crypto/ssh"
)

func commHost(state multistep.StateBag) (string, error) {
	ipAddress := state.Get("instance_ip").(string)
	return ipAddress, nil
}

func sshConfig(state multistep.StateBag) (*ssh.ClientConfig, error) {
	c := state.Get("config").(*Config)
	privateKey := state.Get("privateKey").(string)

	signer, err := ssh.ParsePrivateKey([]byte(privateKey))
	if err != nil {
		return nil, fmt.Errorf("Error setting up SSH config: %s", err)
	}

	return &ssh.ClientConfig{
		User: c.Comm.SSHUsername,
		Auth: []ssh.AuthMethod{
			ssh.PublicKeys(signer),
			ssh.Password(c.Comm.SSHPassword),
			ssh.KeyboardInteractive(
				packerssh.PasswordKeyboardInteractive(c.Comm.SSHPassword)),
		},
	}, nil
}