/*
Copyright 2017 Heptio Inc.

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 restorers

import (
	"testing"

	"github.com/stretchr/testify/assert"

	"k8s.io/apimachinery/pkg/runtime"
)

func TestPodRestorerPrepare(t *testing.T) {
	tests := []struct {
		name        string
		obj         runtime.Unstructured
		expectedErr bool
		expectedRes runtime.Unstructured
	}{
		{
			name:        "no spec should error",
			obj:         NewTestUnstructured().WithName("pod-1").Unstructured,
			expectedErr: true,
		},
		{
			name: "nodeName (only) should be deleted from spec",
			obj: NewTestUnstructured().WithName("pod-1").WithSpec("nodeName", "foo").
				WithSpecField("volumes", []interface{}{}).
				WithSpecField("containers", []interface{}{}).
				Unstructured,
			expectedErr: false,
			expectedRes: NewTestUnstructured().WithName("pod-1").WithSpec("foo").
				WithSpecField("volumes", []interface{}{}).
				WithSpecField("containers", []interface{}{}).
				Unstructured,
		},
		{
			name: "volumes matching default-token regex should be deleted",
			obj: NewTestUnstructured().WithName("pod-1").
				WithSpecField("volumes", []interface{}{
					map[string]interface{}{"name": "foo"},
					map[string]interface{}{"name": "default-token-foo"},
				}).WithSpecField("containers", []interface{}{}).Unstructured,
			expectedErr: false,
			expectedRes: NewTestUnstructured().WithName("pod-1").
				WithSpecField("volumes", []interface{}{
					map[string]interface{}{"name": "foo"},
				}).WithSpecField("containers", []interface{}{}).Unstructured,
		},
		{
			name: "container volumeMounts matching default-token regex should be deleted",
			obj: NewTestUnstructured().WithName("svc-1").
				WithSpecField("volumes", []interface{}{}).
				WithSpecField("containers", []interface{}{
					map[string]interface{}{
						"volumeMounts": []interface{}{
							map[string]interface{}{
								"name": "foo",
							},
							map[string]interface{}{
								"name": "default-token-foo",
							},
						},
					},
				}).
				Unstructured,
			expectedErr: false,
			expectedRes: NewTestUnstructured().WithName("svc-1").
				WithSpecField("volumes", []interface{}{}).
				WithSpecField("containers", []interface{}{
					map[string]interface{}{
						"volumeMounts": []interface{}{
							map[string]interface{}{
								"name": "foo",
							},
						},
					},
				}).
				Unstructured,
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			restorer := NewPodRestorer()

			res, err := restorer.Prepare(test.obj, nil, nil)

			if assert.Equal(t, test.expectedErr, err != nil) {
				assert.Equal(t, test.expectedRes, res)
			}
		})
	}
}
