// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package policy

// Effect - policy statement effect Allow or Deny.
type Effect string

const (
	// Allow - allow effect.
	Allow Effect = "Allow"

	// Deny - deny effect.
	Deny = "Deny"
)

// IsAllowed - returns if given check is allowed or not.
func (effect Effect) IsAllowed(b bool) bool {
	if effect == Allow {
		return b
	}

	return !b
}

// IsValid - checks if Effect is valid or not
func (effect Effect) IsValid() bool {
	switch effect {
	case Allow, Deny:
		return true
	}

	return false
}