package group

import (
	"fmt"
	"log"

	"github.com/spf13/cobra"
	"github.com/spf13/viper"
	ldap "gopkg.in/ldap.v2"
)

func init() {
	// define group delete subcommand flags
	groupDeleteCmd.Flags().StringP("base_ou", "o", "", "LDAP OU where your group entries are stored")
	groupDeleteCmd.Flags().StringP("id_attribute", "a", "cn", "LDAP DN attribute for groups")
	groupDeleteCmd.Flags().StringVarP(&flagGroupName, "groupname", "n", "", "Username of group to delete")
	// bind config file values to group delete flags
	viper.BindPFlag("group.base_ou", groupDeleteCmd.Flags().Lookup("base_ou"))
	viper.BindPFlag("group.id_attr", groupDeleteCmd.Flags().Lookup("id_attribute"))
}

// define group delete subcommand
var groupDeleteCmd = &cobra.Command{
	Use:   "delete",
	Short: "Delete an LDAP group from the directory",
	Long:  `Delete an LDAP group resource from the directory.`,
	Run: func(cmd *cobra.Command, args []string) {
		// create new LDAP connection
		l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", viper.GetString("host"), viper.GetInt("port")))
		if err != nil {
			log.Fatal(err)
		}
		defer l.Close()

		// bind as the admin group
		err = l.Bind(viper.GetString("bind_dn"), viper.GetString("bind_pw"))
		if err != nil {
			log.Fatal(err)
		}

		// set up group DN
		groupDn := fmt.Sprintf("%s=%s,%s", viper.GetString("group.id_attr"), flagGroupName, viper.GetString("group.base_ou"))

		// create a new delete request object
		deleteRequest := ldap.NewDelRequest(groupDn, []ldap.Control{})

		// perform the delete operation
		err = l.Del(deleteRequest)
		if err != nil {
			log.Fatal(err)
		}
	},
}