#!/bin/bash
#------------------------------------------------------------------------------
# readConfig
function readConfig {
  confDir=.
  cfgFile=${confDir}/ldap.conf
  if [ ! -f $cfgFile ]; then
      echo "The conf file '$cfgFile' does not exist !"
      exit 1
  fi
# read config file
  . $cfgFile
}

#------------------------------------------------------------------------------
# getNextuidNumber
function getNextUidNumber {
# read all uidNumber
  ldapsearch -x -LLL -H $LDAP_SRV -b "$LDAP_BASE" -D "$LDAP_MANAGER_USER" -w $LDAP_MANAGER_PASS \
  uidNumber | grep -v dn | grep -v '^$' > /tmp/ldap_uid.tmp #grep -v '^$' empty line
# delete uidNumber form the file
  sed -i -e 's/^uidNumber: //' /tmp/ldap_uid.tmp
# create an array  
  while IFS= read -r line; do
      ldap_array=("${ldap_array[@]}" $line)
  done < /tmp/ldap_uid.tmp
# delete temporary file  
  rm -rf /tmp/ldap_uid.tmp
# sort the array to find the highest uidNumber
  max=0
  for uidNum in ${ldap_array[@]}; do
      if (( $uidNum > $max )); then 
         max=$uidNum
      fi 
  done
# increases the max by 1 
  next_uidNumber=`expr $max + 1` 
}


# check if ldapsearch exist
ldapsearch_path=$(command -v ldapsearch)
if [ "$?" == "1" ]; then
    echo "ldapsearch doesn't exist. Please install openldap-clients package"
    exit 1
fi

slappasswd_path=$(command -v slappasswd )
if [ "$?" == "1" ]; then
    echo "ldapsearch doesn't exist. Please install openldap-servers package"
    exit 1
fi