package cmd

import (
	"fmt"
	"log"

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

var (
	flagBase   string
	flagFilter string
	flagIndent int
)

func init() {
	// define search command flags
	searchCmd.Flags().StringVarP(&flagBase, "base", "b", "dc=example,dc=com", "LDAP search base DN")
	searchCmd.Flags().StringVarP(&flagFilter, "filter", "f", "objectClass=*", "LDAP search filter")
	searchCmd.Flags().IntVarP(&flagIndent, "indent", "i", 0, "Number of spaces to use while indenting search output")

	// register search command
	rootCmd.AddCommand(searchCmd)
}

// define search command
var searchCmd = &cobra.Command{
	Use:   "search",
	Short: "Search an LDAP directory",
	Long:  `Perform an LDAP search operation on an LDAP directory`,
	Run: func(cmd *cobra.Command, args []string) {
		// create new LDAP connection
		l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
		if err != nil {
			log.Fatal(err)
		}
		defer l.Close()

		// create a new LDAP search request
		searchRequest := ldap.NewSearchRequest(
			flagBase, // The base dn to search
			ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
			fmt.Sprintf("(%s)", flagFilter), // The filter to apply
			nil, // A list attributes to retrieve
			nil,
		)

		// perform the LDAP search
		sr, err := l.Search(searchRequest)
		if err != nil {
			log.Fatal(err)
		}

		// print the results
		sr.PrettyPrint(flagIndent)
	},
}