#!/bin/sh
set -eu

LANGS=
while getopts 'l:' flag; do
	case "$flag" in
		l)
			LANGS="$OPTARG"
			;;
		*)
			exit 2
			;;
	esac
done
shift $((OPTIND - 1))
if [ -z "$LANGS" ]; then
	echo "Missing LANG" >&2
	exit 2
fi

end="\033[0m"
yellow="\033[0;33m"
manpage() {
	from_f="$1"
	for l in $LANGS; do
		to_f="$(echo "$from_f" | sed "s/\.en\./.$l./")"

		printf 'Generating %s...\n' "$to_f"
		OUT="$(mktemp)"
		po4a-updatepo -f man -m "$from_f" -p "doc/po/$l.po"
		po4a-translate -f man -m "$from_f" -p "doc/po/$l.po" -l "$to_f" -k 0 -v 2>&1 | tee "$OUT" >&2

		if ! grep -qF ' is 100% translated (' "$OUT"; then
			printf "\n\t${yellow}WARNING${end}!\n	Missing translations for %s\n\n" "$to_f" >&2
		fi
	done
}

for f in "$@"; do
	case "$f" in
		*.en.[1-9].in)
			mkdir -p doc/po
			manpage "$f"
			;;
		*)
			echo "Unsupported file format: $f" >&2
			exit 2
			;;
	esac
done