#/bin/bash

function action_list-templates() {
	assert_template "quiet"
	local template
	verbose "Exam templates list:"
	for template in $(find $DIR_EXAM_TEMPLATES -mindepth 1 -maxdepth 1 -type d -exec basename {} \;); do
		color_echo_n "- \"$template\""
		if [ "$(readlink $DIR_EXAM_TEMPLATES/default)" == "$template" ]; then
			color_echo_n ", ${White}default${NoColor}"
		fi
		if [ "$(basename $DIR_EXAM_TEMPLATE)" == "$template" ]; then
			color_echo_n ", ${Green}selected${NoColor}"
		fi
		color_echo
	done
	return 0
}

function assert_template() {
	local mode=$1 
	if [ -n "$DIR_EXAM_TEMPLATE" ]; then return 0; fi
	DIR_EXAM_TEMPLATE=$(default_template)
	if [ "$DIR_EXAM_TEMPLATE" == "~none~" ]; then
		DIR_EXAM_TEMPLATE=""
		if [ "$mode" != "quiet" ]; then error_echo "Exam template directory not found. Check your configuration or provide a valid 't=maths' parameter."; fi
		return 1
	fi
	debug "DIR_EXAM_TEMPLATE is $DIR_EXAM_TEMPLATE"
	return 0
}

function default_template() {
	local t=""
	local template_dir=""
	is_set 'template'
	if [ $? -eq 1 ]; then t=$(get_parameter 'template'); fi
	is_set 't'
	if [ $? -eq 1 ]; then t=$(get_parameter 't'); fi

	if [ -z "$t" ]; then t="$DEFAULT_EXAM_TEMPLATE"; fi

	template_dir=$DIR_EXAM_TEMPLATES/$t

	if [ -h $template_dir ]; then
		template_dir=$(dirname $template_dir)/$(readlink $template_dir)
	fi

	if [ ! -d $template_dir ]; then
		template_dir="~none~"
	fi
	echo $template_dir
}


# EOF