chore(errors): review all errors in codebase

internal/publicip/errors.go

@@ -3,6 +3,5 @@ package publicip
 import "errors"
 
 var (
-	ErrBadStatusCode  = errors.New("bad HTTP status")
-	ErrCannotReadBody = errors.New("cannot read response body")
+	ErrBadStatusCode = errors.New("bad HTTP status")
 )

internal/publicip/fetch.go

@@ -56,12 +56,13 @@ func (f *Fetch) FetchPublicIP(ctx context.Context) (ip net.IP, err error) {
 	defer response.Body.Close()
 
 	if response.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("%w from %s: %s", ErrBadStatusCode, url, response.Status)
+		return nil, fmt.Errorf("%w from %s: %d %s", ErrBadStatusCode,
+			url, response.StatusCode, response.Status)
 	}
 
 	content, err := io.ReadAll(response.Body)
 	if err != nil {
-		return nil, fmt.Errorf("%w: %s", ErrCannotReadBody, err)
+		return nil, fmt.Errorf("cannot ready response body: %w", err)
 	}
 
 	s := strings.ReplaceAll(string(content), "\n", "")

internal/publicip/info.go

@@ -38,7 +38,8 @@ func Info(ctx context.Context, client *http.Client, ip net.IP) ( //nolint:interf
 	case http.StatusTooManyRequests:
 		return result, fmt.Errorf("%w: %s", ErrTooManyRequests, baseURL)
 	default:
-		return result, fmt.Errorf("%w: %d", ErrBadHTTPStatus, response.StatusCode)
+		return result, fmt.Errorf("%w: %d %s", ErrBadHTTPStatus,
+			response.StatusCode, response.Status)
 	}
 
 	decoder := json.NewDecoder(response.Body)