package mime

import (
	"bytes"
	"strings"
	"unicode"

	"github.com/achiku/varfmt"
)

func VarName(prefix, name string) string {
	rules := map[string]string{
		"+": "_plus",
		"-": "_dash_",
		"/": "_",
		".": "_dot_",
	}

	for old, new := range rules {
		name = strings.ReplaceAll(name, old, new)
	}

	if unicode.IsUpper(rune(name[0])) {
		name = " " + name
	}

	return varfmt.PublicVarName(prefix + "_" + name)
}

func Value(prefix string, val []string) string {
	var out bytes.Buffer
	for _, name := range val {
		out.WriteString(VarName(prefix, name) + ",")
	}

	return out.String()
}