49 lines
910 B
Go
49 lines
910 B
Go
package service
|
|
|
|
import (
|
|
"me-fit/types"
|
|
|
|
"crypto/rand"
|
|
"encoding/base64"
|
|
"log/slog"
|
|
|
|
"github.com/google/uuid"
|
|
)
|
|
|
|
type RandomGenerator interface {
|
|
Bytes(size int) ([]byte, error)
|
|
String(size int) (string, error)
|
|
UUID() (uuid.UUID, error)
|
|
}
|
|
|
|
type RandomGeneratorImpl struct {
|
|
}
|
|
|
|
func NewRandomGeneratorImpl() *RandomGeneratorImpl {
|
|
return &RandomGeneratorImpl{}
|
|
}
|
|
|
|
func (r *RandomGeneratorImpl) Bytes(size int) ([]byte, error) {
|
|
b := make([]byte, 32)
|
|
_, err := rand.Read(b)
|
|
if err != nil {
|
|
slog.Error("Error generating random bytes: " + err.Error())
|
|
return []byte{}, types.ErrInternal
|
|
}
|
|
|
|
return b, nil
|
|
}
|
|
|
|
func (r *RandomGeneratorImpl) String(size int) (string, error) {
|
|
bytes, err := r.Bytes(size)
|
|
if err != nil {
|
|
return "", types.ErrInternal
|
|
}
|
|
|
|
return base64.StdEncoding.EncodeToString(bytes), nil
|
|
}
|
|
|
|
func (r *RandomGeneratorImpl) UUID() (uuid.UUID, error) {
|
|
return uuid.NewRandom()
|
|
}
|