// Copyright 2019 Istio 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 image

import "fmt"

const (
	// HubValuesKey values key for the Docker image hub.
	HubValuesKey = "global.hub"

	// TagValuesKey values key for the Docker image tag.
	TagValuesKey = "global.tag"

	// ImagePullPolicyValuesKey values key for the Docker image pull policy.
	ImagePullPolicyValuesKey = "global.imagePullPolicy"

	// LatestTag value
	LatestTag = "latest"
)

// Settings provide kube-specific Settings from flags.
type Settings struct {
	// Hub value to use in Helm templates
	Hub string

	// Tag value to use in Helm templates
	Tag string

	// Image pull policy to use for deployments. If not specified, the defaults of each deployment will be used.
	PullPolicy string
}

func (s *Settings) clone() *Settings {
	c := *s
	return &c
}

// String implements fmt.Stringer
func (s *Settings) String() string {
	result := ""

	result += fmt.Sprintf("Hub:             %s\n", s.Hub)
	result += fmt.Sprintf("Tag:             %s\n", s.Tag)
	result += fmt.Sprintf("PullPolicy:      %s\n", s.PullPolicy)

	return result
}
