package istiomultierror

import (
	"fmt"
	"strings"

	"github.com/hashicorp/go-multierror"
)

// MultiErrorFormat provides a format for multierrors. This matches the default format, but if there
// is only one error we will not expand to multiple lines.
func MultiErrorFormat() multierror.ErrorFormatFunc {
	return func(es []error) string {
		if len(es) == 1 {
			return es[0].Error()
		}

}

func (al *AuthzLogger) AppendError(err error) {
	al.errMsg = multierror.Append(al.errMsg, err)
}

func (al *AuthzLogger) Report() {
	if al.errMsg != nil {
		al.errMsg.ErrorFormat = istiomultierror.MultiErrorFormat()
		authzLog.Errorf("Processed authorization policy: %s", al.errMsg)
	}
	if authzLog.DebugEnabled() && len(al.debugMsg) != 0 {
		out := strings.Join(al.debugMsg, "\n\t* ")