package cmdutil

import "errors"

// SilentError is an error that should not be printed to stderr.
// The command's exit code will still be non-zero.
type SilentError struct {
	Err error
}

func (e *SilentError) Error() string {
	return e.Err.Error()
}

func (e *SilentError) Silent() bool {
	return true
}

func (e *SilentError) Unwrap() error {
	return e.Err
}

// CancelError indicates the user cancelled an operation.
type CancelError struct{}

func (e *CancelError) Error() string {
	return "operation cancelled"
}

// AuthError indicates an authentication failure.
type AuthError struct {
	Err error
}

func (e *AuthError) Error() string {
	if e.Err != nil {
		return e.Err.Error()
	}
	return "authentication required: run 'tng auth login'"
}

func (e *AuthError) Unwrap() error {
	return e.Err
}

func IsAuthError(err error) bool {
	var ae *AuthError
	return errors.As(err, &ae)
}

func IsCancelError(err error) bool {
	var ce *CancelError
	return errors.As(err, &ce)
}