56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
package service
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import (
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"context"
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"crypto/rand"
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"encoding/base64"
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"log/slog"
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"spend-sparrow/internal/types"
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"github.com/google/uuid"
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)
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type Random interface {
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Bytes(ctx context.Context, size int) ([]byte, error)
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String(ctx context.Context, size int) (string, error)
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UUID(ctx context.Context) (uuid.UUID, error)
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}
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type RandomImpl struct {
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}
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func NewRandom() *RandomImpl {
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return &RandomImpl{}
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}
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func (r *RandomImpl) Bytes(ctx context.Context, tsize int) ([]byte, error) {
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b := make([]byte, 32)
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_, err := rand.Read(b)
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if err != nil {
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slog.ErrorContext(ctx, "Error generating random bytes", "err", err)
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return []byte{}, types.ErrInternal
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}
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return b, nil
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}
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func (r *RandomImpl) String(ctx context.Context, size int) (string, error) {
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bytes, err := r.Bytes(ctx, size)
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if err != nil {
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slog.ErrorContext(ctx, "Error generating random string", "err", err)
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return "", types.ErrInternal
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}
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return base64.StdEncoding.EncodeToString(bytes), nil
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}
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func (r *RandomImpl) UUID(ctx context.Context) (uuid.UUID, error) {
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id, err := uuid.NewRandom()
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if err != nil {
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slog.ErrorContext(ctx, "Error generating random UUID", "err", err)
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return uuid.Nil, types.ErrInternal
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}
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return id, nil
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}
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