#!/bin/sh
set -eu

TLD="$(cat aux/tld.txt)"
. aux/lib.sh

PROJECT_UC=
while getopts 'n:N:m:o:l:' flag; do
	case "$flag" in
		n)
			PROJECT="$OPTARG"
			;;
		N)
			PROJECT_UC="$OPTARG"
			;;
		m)
			MAILING_LIST="$OPTARG"
			;;
		o)
			OUTDIR="$OPTARG"
			;;
		l)
			LANGS="$OPTARG"
			;;
		*)
			exit 2
			;;
	esac
done
shift $((OPTIND - 1))

assert_arg() {
	if [ -z "$1" ]; then
		echo "Missing $2" >&2
		exit 2
	fi
}

assert_arg "${PROJECT:-}"            '-n PROJECT'
assert_arg "${MAILING_LIST:-}"       '-m MAILING_LIST'
assert_arg "${OUTDIR:-}"             '-o OUTDIR'
assert_arg "${LANGS:-}"              '-l LANGS'
PROJECT_UC="${PROJECT_UC:-$PROJECT}"


alternates_for() {
	ALTERNATES="$(mkstemp)"
	lang="$1"
	OUTNAME="$2"
	for l in $LANGS; do
		if [ "$l" = "$lang" ]; then
			continue
		fi
		cat <<EOF >> "$ALTERNATES"
<link rel="alternate" href="https://$TLD/$PROJECT/$l/$OUTNAME" hreflang="$l" />
EOF
	done
	echo "$ALTERNATES"
}


mkdir -p "$OUTDIR"

sh aux/workflow/TODOs.sh \
	-N "$PROJECT_UC" -n "$PROJECT" -m "$MAILING_LIST" -o "$OUTDIR"

for lang in $LANGS; do
	mkdir -p "$OUTDIR/$lang/"
	sh aux/workflow/commonmark.sh \
		-N "$PROJECT" -l "$lang" -t README    \
		-H "$(alternates_for "$lang" '')" \
		< "README.$lang.md"    > "$OUTDIR/$lang/index.html"
	sh aux/workflow/commonmark.sh \
		-N "$PROJECT" -l "$lang" -t CHANGELOG \
		-H "$(alternates_for "$lang" 'CHANGELOG.html')" \
		< "CHANGELOG.$lang.md" > "$OUTDIR/$lang/CHANGELOG.html"
	ln -fs ../favicon.svg "$OUTDIR/$lang"
done

ln -fs en/index.html "$OUTDIR/index.html"
cp aux/workflow/favicon.svg "$OUTDIR"

sh aux/ci/report.sh -n "$PROJECT" -o "$OUTDIR"