package ID

import "encoding/base64"

func Decode(input string) (t Type, lastError error) {
	ret, err := base64.URLEncoding.DecodeString(input)

	if err != nil {
		lastError = err
		return
	}

	for i := 2; i >= 0; i-- {
		t <<= 8
		t |= Type(ret[i])
	}

	return
}

func (t Type) Encode() string {
	var buffer [3]byte
	for i := 0; i < 3; i++ {
		buffer[i] = byte(t)
		t >>= 8
	}

	return base64.URLEncoding.EncodeToString(buffer[:])
}