package command

import (
	"fmt"
	"strconv"
	"strings"

	"github.com/hashicorp/vault/api"
)

// TokenRenewCommand is a Command that mounts a new mount.
type TokenRenewCommand struct {
	Meta
}

func (c *TokenRenewCommand) Run(args []string) int {
	var format string
	flags := c.Meta.FlagSet("token-renew", FlagSetDefault)
	flags.StringVar(&format, "format", "table", "")
	flags.Usage = func() { c.Ui.Error(c.Help()) }
	if err := flags.Parse(args); err != nil {
		return 1
	}

	args = flags.Args()
	if len(args) < 1 {
		flags.Usage()
		c.Ui.Error(fmt.Sprintf(
			"\ntoken-renew expects at least one argument"))
		return 1
	}

	var increment int
	token := args[0]
	if len(args) > 1 {
		value, err := strconv.ParseInt(args[1], 10, 0)
		if err != nil {
			c.Ui.Error(fmt.Sprintf("Invalid increment: %s", err))
			return 1
		}

		increment = int(value)
	}

	client, err := c.Client()
	if err != nil {
		c.Ui.Error(fmt.Sprintf(
			"Error initializing client: %s", err))
		return 2
	}

	// If the given token is the same as the client's, use renew-self instead
	// as this is far more likely to be allowed via policy
	var secret *api.Secret
	if client.Token() == token {
		secret, err = client.Auth().Token().RenewSelf(increment)
	} else {
		secret, err = client.Auth().Token().Renew(token, increment)
	}
	if err != nil {
		c.Ui.Error(fmt.Sprintf(
			"Error renewing token: %s", err))
		return 1
	}

	return OutputSecret(c.Ui, format, secret)
}

func (c *TokenRenewCommand) Synopsis() string {
	return "Renew an auth token if there is an associated lease"
}

func (c *TokenRenewCommand) Help() string {
	helpText := `
Usage: vault token-renew [options] token [increment]

  Renew an auth token, extending the amount of time it can be used.
  Token is renewable only if there is a lease associated with it.

  This command is similar to "renew", but "renew" is only for lease IDs.
  This command is only for tokens.

  An optional increment can be given to request a certain number of
  seconds to increment the lease. This request is advisory; Vault may not
  adhere to it at all.

General Options:

  ` + generalOptionsUsage() + `

Token Renew Options:

  -format=table           The format for output. By default it is a whitespace-
                          delimited table. This can also be json or yaml.

`
	return strings.TrimSpace(helpText)
}