package server

import (
	"crypto/rand"
	"encoding/hex"
	"strings"
)

func newBoxID() (string, error) {
	bytes := make([]byte, 16)
	if _, err := rand.Read(bytes); err != nil {
		return "", err
	}

	return hex.EncodeToString(bytes), nil
}

func newFileID() (string, error) {
	bytes := make([]byte, 8)
	if _, err := rand.Read(bytes); err != nil {
		return "", err
	}

	return hex.EncodeToString(bytes), nil
}

func validBoxID(boxID string) bool {
	if len(boxID) != 32 {
		return false
	}

	for _, character := range boxID {
		if !strings.ContainsRune("0123456789abcdef", character) {
			return false
		}
	}

	return true
}