#!/usr/bin/env bash

## - !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
## -
## - If network directory have to mount (its only possible if backuping
## - localhost) you need an entry in your /etc/fstab, becaus we mount thuch
## - remote directories with "mount <remote directory)
## -
## - i.e. for a samba mounted directory you need an entry like:
## -
## -    //192.168.100.20/qinter /mnt/file-win7/qinter smbfs noauto,user=Administrator,password=chnarzfoo5 0 0
## -
## - !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

err_Log=${LOCK_DIR}/dir.err.log
> $err_Log

## - load functions
## -
. $rcopy_functions_file
   
if $mount_netdir ; then
   if [ $srcHost != "localhost" ] || $_via_ssh_tunnel ;then

      ## - Network directory mounted ?
      ## -
      if ! $($ssh ${ssh_user}@${srcHost} df -h 2> /dev/null | grep -q ${backup_dir} 2>/dev/null) ; then 
         $ssh ${ssh_user}@${srcHost} "$sudo mount ${backup_dir}" > /dev/null 2> $err_Log

         if [[ "$?" -ne 0 ]]; then
            echolog ""
            echolog "\t[ERROR] Mounting '${backup_dir}' on '${srcHost}' failed!\n          $(cat "$err_Log")"
            exit 1
         else

            sleep 5

            if ! $($ssh ${ssh_user}@${srcHost} df -h 2> /dev/null | grep -q ${backup_dir} 2>/dev/null) ; then
               echolog ""
               echolog "\t[ERROR] Something went wrong with mounting '${backup_dir}' on '${srcHost}'!"
               exit 1
            fi
         fi

      fi

   else
      ## - Network directory mounted ?
      ## -
      if ! df | grep "$backup_dir" > /dev/null 2>&1 ;then
         $mount $backup_dir > /dev/null 2>&1
      fi

      sleep 5

      if ! df | grep "$backup_dir" > /dev/null 2>&1 ;then
         print_error_stdout "Cannot mount network directory to \"$backup_dir\":\n          $(cat $err_Log)"
         echolog ""
         echolog "\t[ERROR] Cannot mount network directory to \"$backup_dir\""
         exit 1
      fi
   fi
fi

## - Check if directory is empty
## -
if [ $srcHost != "localhost" ] || $_via_ssh_tunnel ;then

   if [ ! "$( $ssh ${ssh_user}@${srcHost} ls -A ${backup_dir})" ] ; then
      echolog ""
      echolog "\t[ NOTICE ]: Directory \"${backup_dir}\" on \"${srcHost}\" is empty. So nothing to do..\n"
      exit 0
   fi
else
   if [ ! "$(ls -A $backup_dir)" ]; then
      echolog ""
      echolog "\t[ NOTICE ]: Directory \"$backup_dir\" is empty. So nothing to do..\n"
      exit 0
   fi    
fi
   
echolog "\n\tBackup network directory \"$backup_dir\"  ( `$date +%H`:`$date +%M` h )"
backup_dir=$backup_dir $script_dir/dir_backup.sh
      
if $mount_netdir ; then
   if [ $srcHost != "localhost" ];then

      $ssh ${ssh_user}@${srcHost} "$sudo umount ${backup_dir}" > /dev/null 2> $err_Log
      if [[ "$?" -ne 0 ]]; then
         echolog ""
         echolog "\t[ERROR] Unounting '${backup_dir}' on '${srcHost}' failed!\n          $(cat "$err_Log")"
         exit 1
      fi

      #print_error_stdout "Mounting network directories is only possible for localhost - yet:\n          $(cat $err_Log)"
      #echolog ""
      #echolog "\t[ERROR] Mounting network directories is only possible for localhost - yet"
      #exit 1

   else
      $umount $backup_dir 2> /dev/null
   fi
fi

exit 0