#Created by Nathan Campbell 16009710
#MUOS assessment 3 - Menu

#!/bin/bash

clear


hash figlet &> /dev/null
if [ $? -eq 1 ]; then
	echo >&2 "Figlet not found.";echo;
	echo "Going to install figlet now..."
	sudo apt update && sudo apt install figlet -y;echo;
	echo "Figlet now installed!"
	sleep 2
fi

clear
function menu {
	clear
	loop=y
	while [ $loop = y ]; do
		echo -e 'LO3 Menu' | figlet -f standard;echo;
		#echo "Main Menu";echo; "==============="
		echo -e "\e[33m"$(date);echo;
		echo -e "\e[36m0: Quit";echo;
	 	echo -e "\e[39m1: Create backup"
		echo "2: Long listing"
		echo "3: Delete backup"
		read -n1 -s choice

		case $choice in
			0) quit;;
			1) backup;;
			2) listing;;
			3) delbackup;;
			*) echo "Invalid choice, Please try again!"; sleep1; menu;;
		esac
	done
}

function quit {
	clear
	exit
}

function backup {
	clear
	echo "Enter the absolute path of a directory to backup: "; read x;echo;
	if [ -d $x ]; then
		BACKUP=$HOME/backup_`(date +%Y_%m_%d_%I_%M_%P)`.tar
		tar -czf $BACKUP $x; tar -ztvf $BACKUP > $HOME/backup.log
		sleep 1
		echo "Directory backed up."
		sleep 1
		echo "`backup.log` `date -u`" >> $HOME/backup.log
		sleep 1
		echo "Backup log created.";echo;
		sleep 1
		cat $HOME/backup.log;echo;
		read -n 1 -s -r -p "Press any key to continue"
		clear
	else
		echo "Directory does not exist"
		sleep 2
		read -n 1 -s -r -p "Press any key to continue"
		clear
	fi
}

function listing {
	clear
	ls -l $HOME/backup*
	echo
	read -n 1 -s -r -p "Press any key to continue"
	clear
}

function delbackup {
	clear
	ls -l $HOME/backup*
	echo
	echo "Enter the name of the backup you wish to delete :"; read Y
	echo "Delete: $HOME/$Y ? (y/n)"; read d
	if [[ $d == "Y" || $d == "y" ]]; then
		echo
		echo "Deleting backup..."
		sleep 2
		rm $HOME/$Y
		echo
		echo "The backup has been removed."
		sleep 3
		clear
		ls -l $HOME/backup*
		echo
		read -n 1 -s -r -p "Press any key to continue"
		clear
	else
		echo "Not deleting backup"
		read -n 1 -s -r -p "Press any key to continue"
		clear
	fi
}

menu