package command

import (
	"fmt"
	"strconv"
	"strings"

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

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

func (c *RenewCommand) Run(args []string) int {
	var format string
	flags := c.Meta.FlagSet("renew", meta.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 || len(args) >= 3 {
		flags.Usage()
		c.Ui.Error(fmt.Sprintf(
			"\nRenew expects at least one argument: the lease ID to renew"))
		return 1
	}

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

		increment = int(parsed)
	}

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

	secret, err := client.Sys().Renew(leaseId, increment)
	if err != nil {
		c.Ui.Error(fmt.Sprintf(
			"Renew error: %s", err))
		return 1
	}

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

func (c *RenewCommand) Synopsis() string {
	return "Renew the lease of a secret"
}

func (c *RenewCommand) Help() string {
	helpText := `
Usage: vault renew [options] id [increment]

  Renew the lease on a secret, extending the time that it can be used
  before it is revoked by Vault.

  Every secret in Vault has a lease associated with it. If the user of
  the secret wants to use it longer than the lease, then it must be
  renewed. Renewing the lease will not change the contents of the secret.

  To renew a secret, run this command with the lease ID returned when it
  was read. Optionally, request a specific increment in seconds. Vault
  is not required to honor this request.

General Options:
` + meta.GeneralOptionsUsage() + `
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)
}