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/*
   GoToSocial
   Copyright (C) 2021-2023 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/superseriousbusiness/gotosocial/internal/log"
	"github.com/tdewolff/minify/v2"
	"github.com/tdewolff/minify/v2/html"
)

var (
	m *minify.M
)

func minifyHTML(content string) string {
	if m == nil {
		m = minify.New()
		m.Add("text/html", &html.Minifier{
			KeepEndTags: true,
			KeepQuotes:  true,
		})
	}

	minified, err := m.String("text/html", content)
	if err != nil {
		log.Errorf("error minifying HTML: %s", err)
	}
	return minified
}