package tgrich

import (
	"fmt"
	"sort"
	"strings"
)

func escapeHTML(s string) string {
	s = strings.ReplaceAll(s, "&", "&")
	s = strings.ReplaceAll(s, "<", "&lt;")
	s = strings.ReplaceAll(s, ">", "&gt;")
	s = strings.ReplaceAll(s, `"`, "&quot;")
	return s
}
func formatAttrs(attrs map[string]string) []string {
	out := make([]string, 0, len(attrs))
	for k, v := range attrs {
		if v == "" {
			out = append(out, k)
			continue
		}
		out = append(out, fmt.Sprintf(`%s="%s"`, k, escapeHTML(v)))
	}
	sort.Strings(out)
	return out
}

func openTag(name string, attrs []string) string {
	if len(attrs) == 0 {
		return "<" + name + ">"
	}
	return "<" + name + " " + strings.Join(attrs, " ") + ">"
}

func selfClosingTag(name string, attrs []string) string {
	if len(attrs) == 0 {
		return "<" + name + "/>"
	}
	return "<" + name + " " + strings.Join(attrs, " ") + "/>"
}