/*
   GoToSocial
   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Affero General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Affero General Public License for more details.

   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

package text

import (
	"github.com/tdewolff/minify/v2"
	"github.com/tdewolff/minify/v2/html"
)

var m *minify.M

// MinifyHTML runs html through a minifier, reducing it in size.
func MinifyHTML(in string) (string, error) {
	if m == nil {
		m = minify.New()
		m.Add("text/html", &html.Minifier{
			KeepQuotes:       true,
			KeepEndTags:      true,
			KeepDocumentTags: true,
		})
	}
	return m.String("text/html", in)
}