package policyengine

import "fmt"

// Status is the status for policy application.
type Status byte

const (
	Allow Status = iota
	NoRuleFound
	AccessDenied
	QuotaLimitReached
	last
)

// Valid returns true if the status is valid.
func (s Status) Valid() bool {
	return s < last
}

// String implements the fmt.Stringer interface.
func (s Status) String() string {
	switch s {
	case Allow:
		return "Allowed"
	case NoRuleFound:
		return "NoRuleFound"
	case AccessDenied:
		return "Access denied"
	case QuotaLimitReached:
		return "Quota limit reached"
	default:
		return fmt.Sprintf("Denied with status: %d", s)
	}
}