package utils

import (
	"fmt"
	"strings"
	"git.laidback.moe/YakumoLabs/efsldap/config"
)

var (
	Base = config.Config.LDAPBase
	Domain = config.Config.SMTPDomain
	Uid = config.Config.LDAPUID
)

var (
	BaseLength = len(Base) + 1
	UidLength = len(Uid) + 1
)

func GetMail(user string) string {
	return fmt.Sprintf("%s@%s", user, Domain)
}

func GetLdapName(user string) string {
	return fmt.Sprintf("%s=%s,%s", Uid, user, Base)
}

func GetUser(name string) string {
	endIndex := len(name) - BaseLength
	if endIndex < 0 {
		return ""
	}
	user := name[UidLength:endIndex]

        user = strings.TrimSuffix(user, "@"+Domain)

	return user
}

func GetSearchUser(name string) string {
	startIndex := UidLength + 1
	endIndex := len(name) - 1
	if endIndex < 0 {
		return ""
	}
	user := name[startIndex:endIndex]
	return user
}