#!/bin/bash

SMGUID=0
SMBGID=0

while getopts 'd:s:u:p:U:G:' flag; do
  case "${flag}" in
    d) DIRECTORY="${OPTARG}" ;;
    s) SHARE="${OPTARG}" ;;
    u) USERNAME="${OPTARG}" ;;
    p) PASSWORD="${OPTARG}" ;;

    U) SMGUID="${OPTARG}" ;;
    G) SMBGID="${OPTARG}" ;;
  esac
done

if [ -z $DIRECTORY ] || [ -z $SHARE ]  || [ -z $USERNAME ] || [ -z $PASSWORD ] ; then
  echo "smbmount [OPTIONS...]"
  echo "";
  echo "Reads text report and returns total size";
  echo "";
  echo "Flags:";
  echo "  -d    Directory to mount samba share to."
  echo "  -s    samba share ex //192.168.60.200/myshare"
  echo "  -u    username to access samba share"
  echo "  -p    password to access samba share"
  echo " "
  echo "  -U    UID of user who will own files in samba share. Default: 0 (root)"
  echo "  -G    GID of group who will own files in samba share. Default: 0 (root)"
  echo " "
  echo "Example"
  echo "./smbmount -d /mnt/share/192.168.60.200/myshare -s //192.168.60.200/myshare -u backup -p secret -U 0 -G 100"
  exit 3;
fi;

mount | grep $DIRECTORY > /dev/null
if [ $? -eq "0" ] ; then
    echo "Already mounted"
    exit 0
fi

if [ ! -d $DIRECTORY ]  ; then
  mkdir -p $DIRECTORY
  if [ $? -ne "0" ]; then
    echo "Failed to create directory"
    exit 3;
  fi;
fi;

mount -t cifs -o username=$USERNAME,password=$PASSWORD,dir_mode=0750,file_mode=0750,uid=$SMGUID,gid=$SMBGID $SHARE $DIRECTORY
exit $?