#!/bin/sh
set -eu


usage() {
	cat <<-'EOF'
		Usage:
		  absolute < STDIN
		  absolute -h
	EOF
}

help() {
	cat <<-'EOF'

		Options:
		  -h, --help    show this message


		Read URL from STDIN and adds the FQDN prefix.  Meant to be used
		in conjunction with `url-for`.


		Examples:

		  Get the URL for "static/style.css", and make it absolute:

		    $ url-for 'static/style.css' | absolute
		    https://euandre.org/static/style.css
	EOF
}


for flag in "$@"; do
	case "$flag" in
		--)
			break
			;;
		--help)
			usage
			help
			exit
			;;
		*)
			;;
	esac
done

while getopts 'h' flag; do
	case "$flag" in
		h)
			usage
			help
			exit
			;;
		*)
			usage >&2
			exit 2
			;;
	esac
done
shift $((OPTIND - 1))


. src/development/config.env

printf 'https://%s%s' "$FQDN" "$(cat)"