#!/bin/bash

# Based on a script by Adam Neat, modified in 2003 by Matthew Durnford
# Comments, modifications, improvements to matthew@rosemounttechnology.com
# This script comes with no warranty, use it at your own risk.

# The script that does the work of cleaning the temporary directory, copying
# the data, renaming the directories.
# The variables are $1=computer name, $2=service name, $3=backup directory
# $4=smbclient config file, $5=username%password.

cd ~admin/backup
logfile="/home/admin/logs/backup.log"

echo "------> win_backup initialising for $1 $2" >> "$logfile"


if [ ! -f $4 ]; then
# echo "$4 backup config file exists" >> "$logfile"

#else

echo "FATAL ERROR: No backup config file for today! .." >> "$logfile"
echo "------> win_backup for $1 $2 aborting" >> "$logfile"
exit 1
fi


if [ "$1" = "" ]; then

echo "error in a computer name " >> "$logfile"
exit 1
fi

if [ "$2" = "" ]; then

echo "error in service name" >> "$logfile"
exit 1
fi

if [ "$3" = "" ]; then

echo "error in backup directory on server name" >> "$logfile"
exit 1
fi



#############################################################################
# Main Section
#
#############################################################################


if [ ! -d ~admin/backup/temp ]; then

mkdir -m 760 ~admin/backup/temp

fi

#clean out temp directory before start

cd ~admin/backup/temp
rm -rf *

echo "copying files from $1"

cat $4 | /usr/bin/smbclient //$1/$2 -U $5 || { echo "FATAL ERROR : No connection to $1 $2 - check network and if computer working. Also user name, password and sharing on service $2 " >> "$logfile" ; exit 1; }



if [ ! -d ~admin/backup/current/$3/ ]; then

mkdir -p ~admin/backup/current/$3/

fi

if [ ! -d ~admin/backup/old/$3/ ]; then

mkdir -p ~admin/backup/old/$3/
fi

#clean out old directory

cd ~admin/backup/old/$3/
rm -rf *

#copy files from current directory to old directory

touch "/home/admin/backup/current/$3/current_to_old-$(date +%Y%m%d_%T)"
mv ~admin/backup/current/$3/* ~admin/backup/old/$3/

#clean out the current directory

cd ~admin/backup/current/$3/
rm -rf *

#copy files from temp directory to current directory

cd ~admin/backup/temp
touch "/home/admin/backup/temp/temp_to_current-$(date +%Y%m%d_%T)"
mv ~admin/backup/temp/* ~admin/backup/current/$3/

#clean out the temp directory

cd ~admin/backup/temp
rm -rf *

echo "------> backup of $1 $2 completed" >> "$logfile"