#!/usr/bin/bash

if [ $1 ]; then
	while test $# -gt 0; do
		case $1 in
			-h|--help)
				echo "Create files from template"
				echo ""
				echo "Usage: new [options] newFile"
				echo ""
				echo "Options:"
				echo "--------"
				echo -e "{-t,--template} filename \t Force use of template in Template Directory"
				echo -e "{-l,--list} \t\t\t Lists the available templates"
				echo -e "{-h,--help} \t\t\t Show this help text"
				exit 0
				;;
			-t|--template)
				shift
				if [[ -f "$HOME/Templates/$1" ]]; then 
					template="$HOME/Templates/$1"
				else
					echo "The file $HOME/Templates/$1 does not exits"
					exit 1
				fi
				shift
				;;
			-l|--list)
				shift
				for file in $HOME/Templates/*$1; do
					echo ${file##*/}
				done
				exit 0
				;;
			*)
				file=$1
				if [[ "$template" == "" ]]; then
					extention=${file##*.}
					posTemplates=()
					if [[ -f $HOME/Templates/$extention ]]; then
						posTemplates+=("$HOME/Templates/$extention")
					fi
					for template in $HOME/Templates/*.$extention; do
						if [[ -f $template ]]; then
							posTemplates+=( $template )
						fi
					done
					if [[ ${#posTemplates[@]} == 1 ]]; then
						echo "Only one template"
						template=${posTemplates[0]}
					else

						posTemplates+=("Cancel")
						while
							echo Your options are:
							for (( i=0; i<${#posTemplates[@]}; i++ )); do
								echo "$i: ${posTemplates[$i]##*/}"
							done
							echo -e -n "Please enter a number: [0] "
							read input
							if [[ "$input"=="" ]]; then
								test=0
							fi;
							if [[ "$input" == "$(expr ${#posTemplates[@]} - 1)" ]]; then
								echo "Exited By User"
								exit 0
							fi
							template=${posTemplates[$input]}
							[[ $input>=${#posTemplates[@]} || $input<0 ]]
						do 
							echo
							echo Please chose one of the available options
						done
					fi
				fi


				if [[ -f "$file" ]]; then
					echo "$file already exists"
					echo "delete it first"
					exit 1
				fi
				cat "$template" > "$file"
				echo "$file created from template $template"
				exit 0
				;;
		esac
	done
else
	echo "You haven't given anything to work with"
fi