// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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 utils

import "github.com/pkg/errors"

type PackageType string

const (
	PackageTypeFunction PackageType = "function"
	PackageTypeSink     PackageType = "sink"
	PackageTypeSource   PackageType = "source"
)

func parsePackageType(packageTypeName string) (PackageType, error) {
	switch packageTypeName {
	case PackageTypeFunction.String():
		return PackageTypeFunction, nil
	case PackageTypeSink.String():
		return PackageTypeSink, nil
	case PackageTypeSource.String():
		return PackageTypeSource, nil
	default:
		return "", errors.Errorf("Invalid package type '%s', it should be "+
			"function, sink, or source", packageTypeName)
	}
}

func (p PackageType) String() string {
	return string(p)
}
