// Copyright 2018 Bull S.A.S. Atos Technologies - Bull, Rue Jean Jaures, B.P.68, 78340, Les Clayes-sous-Bois, France.
//
// 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 workflow

import (
	"github.com/hashicorp/consul/api"
	"github.com/ystia/yorc/deployments"
	"github.com/ystia/yorc/prov"
	"github.com/ystia/yorc/registry"
)

func getOperationExecutor(kv *api.KV, deploymentID, artifact string) (prov.OperationExecutor, error) {
	reg := registry.GetRegistry()

	exec, originalErr := reg.GetOperationExecutor(artifact)
	if originalErr == nil {
		return exec, nil
	}
	// Try to get an executor for artifact parent type but return the original error if we do not found any executors
	parentArt, err := deployments.GetParentType(kv, deploymentID, artifact)
	if err != nil {
		return nil, err
	}
	if parentArt != "" {
		exec, err := getOperationExecutor(kv, deploymentID, parentArt)
		if err == nil {
			return exec, nil
		}
	}
	return nil, originalErr
}