embed

#!/bin/bash

bm="$(realpath "$(dirname "$0")")";
data="$bm/internal/static/";
jslibJS="$(realpath "$bm/../jslib/lib.js/")";
tmpFile="$(mktemp)";

(
	cd "$data";
	head -n5 index.html | tr -d '\n	';
	echo -n "<script type=\"module\">";
	jspacker -i "/$(grep "<script" index.html | sed -e 's/.*src="\([^"]*\)".*/\1/')" | if command -v terser > /dev/null; then terser -m  --module --compress pure_getters,passes=3 --ecma 2020 | tr -d '\n'; else tr -d '\n\t'; fi;
	echo -n "</script>";
	tail -n5 index.html | tr -d '\n	';
) > "$tmpFile";

if [ "$1" = "-size" ]; then
	stat -c %s "$tmpFile";

	if command -v zopfli > /dev/null; then
		zopfli --gzip --i1000 -c "$tmpFile" > "$tmpFile.gz";
	else
		gzip -f -9 "$tmpFile";
	fi;

	stat -c %s "$tmpFile.gz";
	rm -f "$tmpFile" "$tmpFile.gz";
	exit 0;
fi;

cat > index.go <<HEREDOC
package battlemap

import (
	_ "embed" // required for index embed
	"time"

	"vimagination.zapto.org/httpembed"
)

var (
	//go:embed index.gz
	indexData []byte
	index     = httpembed.HandleBuffer("index.html", indexData, $(stat --format "%s" "$tmpFile"), time.Unix($(date "+%s"), 0))
)
HEREDOC

if command -v zopfli > /dev/null; then
	zopfli --gzip --i1000 -c "$tmpFile" > index.gz;
	rm -f "$tmpFile";
else
	gzip -f -9 "$tmpFile";
fi;

(
	cd "$data";
	for i in plugins/*.js; do
		jspacker -i "/$i" -p | terser -m  --module --compress pure_getters,passes=3 --ecma 6 | tr -d '\n' > "$bm/plugins/$(basename "$i")";
	done;
);