#!/bin/sh
set -eu

usage() {
	cat <<-'EOF'
		Usage:
		  src/development/security-txt.sh
		  src/development/security-txt.sh -h
	EOF
}

help() {
	cat <<-'EOF'


		Options:
		  -h, --help    show this message


		Generate the RFC 9116 "security.txt" file from data in the
		repository.


		Examples:

		  Just run it:

		    $ sh src/development/security-txt.sh > .well-known/security.txt
	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))



EXPIRES="$(
	LANG=C.UTF-8 gpg --list-key eu@euandre.org |
		awk '/^pub/ { print substr($(NF), 1, 10) }'
)T00:00:00z"

LANGS="en$(
	echo po/??.po |
		sed 's|\.po$||'  |
		sed 's|^po/|, |' |
		paste -sd,
)"


cat <<-EOF
	Contact: mailto:@EMAIL@
	Encryption: https://@DOMAIN@/public.asc.txt
	Expires: $EXPIRES
	Preferred-Languages: $LANGS
EOF