// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 validation

import (
	"fmt"

	schedulerapi "github.com/gardener/gardener/pkg/scheduler/apis/config"
)

// ValidateConfiguration validates the configuration.
func ValidateConfiguration(config *schedulerapi.SchedulerConfiguration) error {
	for _, strategy := range schedulerapi.Strategies {
		if strategy == config.Schedulers.Shoot.Strategy {
			return nil
		}
	}
	return fmt.Errorf("unknown seed determination strategy configured in gardener scheduler. Strategy: '%s' does not exist. Valid strategies are: %v", config.Schedulers.Shoot.Strategy, schedulerapi.Strategies)
}