package template

import (
	"regexp"
	"strings"

	"github.com/rainycape/unidecode"
)

var (
	nonValidChars  = regexp.MustCompile("[^a-z0-9-_]")
	multipleDashes = regexp.MustCompile("-+")
)

func Slugify(s string) (slug string) {
	slug = strings.TrimSpace(s)
	slug = unidecode.Unidecode(slug)
	slug = strings.ToLower(slug)
	slug = nonValidChars.ReplaceAllString(slug, "-")
	slug = multipleDashes.ReplaceAllString(slug, "-")
	slug = strings.Trim(slug, "-_")
	return slug
}