/*
 * Copyright the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package defaults

import (
	"fmt"
	"os"
)

// GetOperatorLockName returns the name of the lock lease that is electing a leader on the particular namepsace.
func GetOperatorLockName(operatorID string) string {
	return fmt.Sprintf("%s-lock", operatorID)
}

func OperatorID() string {
	return envOrDefault("", "YAKS_OPERATOR_ID")
}

func envOrDefault(def string, envs ...string) string {
	for i := range envs {
		if val := os.Getenv(envs[i]); val != "" {
			return val
		}
	}

	return def
}
