#!/bin/bash
PROGNAME=`basename $0`



# ============================= Functions ============================

############################## Debugging Functions ######################
function BUGPAUSE 
{
echo " "
echo "-----------------------------------------------------------"
echo "                    MANUAL BUG CHECK!"
echo "      Is the program doing what you expect?  Please "
echo "   review preceeding output for correctness.  Thank you."
echo "-----------------------------------------------------------"
echo " "
echo "Args so far:"
echo "ARG1: $ARG1 "
echo "ARG2: $ARG2 "
echo "ARG3: $ARG3 "
echo "ARG4: $ARG4 "
echo " "
ask "Continue? [Y/n]" y
if [ $? -ne 0 ]; then
        {
        exit 100
        }
fi
}

			


####
####
#
# Error Handler.
#
####
####

function ERROR 
{
	clear
	echo "----------------"
	echo "| ABEND: Code $1 |"
	echo "-------------------------------------------------------------------------"
	echo " Bummer!  An error occurred!"
	echo " Don't you just hate it when..."
	echo "${2}?"
	echo "=========================="
	echo " Maybe this will help...."
	echo "=========================="
	SYNTAX
	exit $1
}

	



####
####
#
# -  SYNTAX  -------- Bet you cannot guess what this does.  
#
####
####

function SYNTAX 
{
	MORE "Do you wish to view the Syntax for `VERSION`" y
	echo "SYNTAX: Program $PROGNAME"
	echo " "

	
	MORE "Do you wish to continue?" y
	echo "NOTES: "
	echo " "

	
	MORE "Do you wish to continue?" y
	echo "NOTES:"
	echo " "
	echo "**** End of help.  Don't you wish there was more? ****"
	echo "Strike a key to exit help."
	read DUMMY
	return
}
	
####
####
#
# MORE
#
####
####

function MORE()
{
ask "$1 [y/n]" $2
if [ $? -eq 0 ]; then
        return
else
        exit 0
fi
}


####
####
#
# -  CHECKCMD  --------- Locates the system cammands used by this script.-------
# This makes sure the commands we need exist.  If a command is missing,
# this function will cause the script to abort.
#
####
####

function CHECKCMD 
{
# Check for required *NIX executable commands.
echo "---->In CHECKCMD...."
	for i in id seq echo hostname touch cp mv rm rsync mount smbmount ask; do
		which $i; 
		if [ $? -ne 0 ]; then 
			ERROR 1 "the command $i is missing from the system"
		fi;  
	done

}

####
####
#
# CHECK_HOST  ----Aborts the program if the hostname keyfile is missing.
#
####
####
function CHECK_HOST()
{
AUTHORIZED_HOST=`cat /root/bin/authorized_hostkey`
if [ $AUTHORIZED_HOST = `hostname` ]; then
	{
	echo "Host $AUTHORIZED_HOST validated."
	}
else
	{
	ERROR 20 "When you try to run `basename $0` on an unauthorized backup host"
	}
fi
}






####
####
#
# - R_U_ROOT  ----- Aborts the program if the person running it is not root.
#
####
####

function R_U_ROOT
{
ID=`id -u`
if [ $ID -ne 0 ]; then
	{
	echo "$PROGNAME is a potentially dangerous program."
	echo "Therefore it is only to be run by the root user."
	echo "You appear to be running it as `id -nu`."
	echo "Please try again as root or have the system administrator run"
	echo "$PROGNAME for you."
	ERROR 10 "you forget to log in as root first"
	}
fi
}



####
####
#
# - GETARGS  ----------- Converts command-line args to appropriate parameters.  Otherwise, 
# it prompts for the necessary arguments.
#
####
####

function GETARGS
{
	echo "IN GETARGS...."
	if [ -z $1 ]; then
		{
		echo ""
		read ARG1
		if [ -z $ARG1 ]; then
			echo "Setting backup path to /usr2/backup."
			ARG1="/usr2/backup"
		fi
		}
	else
		ARG1=$1
	fi

}

####
####
#
# Reports the version for this program.
#
####
####

function VERSION
{
echo "$PROGNAME Version 04292k4-a, NEWSCRIPT Version 11172k3-a"
}


#======================================= No more functions. ==========

#############################################################################
#################################        ####################################
#################################  MAIN  ####################################
#################################        ####################################
#############################################################################

case "$1" in
	v|V|-v|-V|--version|--VERSION|--Version|-version|-Version|-VERSION--ver|--Ver|--VER|-ver|-Ver|-VER)
		VERSION
		exit 0
	;;
	h|H|-h|-H|--help|--HELP|--Help|HELP|help|Help|-help|-HELP|-Help)
		SYNTAX
		exit 0
	;;
esac

#CHECK_HOST
R_U_ROOT
VERSION
CHECKCMD
GETARGS $1




		
echo "Processing Linux Boxen"
for i in `cat /usr/local/bin/linux_boxen`; do
	{
	if [ -d ${ARG1}/$i ]; then
		echo "${ARG1}/$i already exists.  Nothing done."
	else
		{
		echo "Making ${ARG1}/$i"
		mkdir -p ${ARG1}/$i
		}
	fi
	}
done

for i in `cat /usr/local/bin/windows_boxen`; do
	{
	for j in c-${i} d-${i} e-${i} f-${i}; do
		{
		if [ -d ${ARG1}/$i/$j ]; then
			echo "${ARG1}/$i/$j already exists.  Nothing done."
		else
			{
			echo "Making ${ARG1}/$i/$j"
			mkdir -p ${ARG1}/$i/$j
			}
		fi
		
		if [ -d /mnt/$i/$j ]; then
			echo "/mnt/$i/$j already exists. Skipped this iteration."
		else
			{
			echo "Making samba mount point at  /mnt/$i/$j"
			mkdir -p /mnt/$i/$j
			}
		fi
		}
	done
	}
done
	
echo "Tree structure created."
echo "End run--------------<<<<<<<".