/*
Copyright (c) 2020 VMware, Inc. All Rights Reserved.

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 guest_test

import (
	"context"
	"fmt"
	"testing"

	"github.com/vmware/govmomi/guest"
	"github.com/vmware/govmomi/simulator"
	"github.com/vmware/govmomi/vim25"
	"github.com/vmware/govmomi/vim25/types"
)

func TestTranferURL(t *testing.T) {
	simulator.Test(func(ctx context.Context, c *vim25.Client) {
		vm := simulator.Map.Any("VirtualMachine").(*simulator.VirtualMachine)
		host := simulator.Map.Get(*vm.Runtime.Host).(*simulator.HostSystem)

		ops := guest.NewOperationsManager(c, vm.Reference())
		m, err := ops.FileManager(ctx)
		if err != nil {
			t.Fatal(err)
		}

		for i := 0; i < 2; i++ { // 2nd time is to validate the cached value
			turl := "https://esx:443/foo/bar"
			u, err := m.TransferURL(ctx, turl)
			if err != nil {
				t.Fatal(err)
			}
			if u.Hostname() != "127.0.0.1" {
				t.Errorf("hostname=%s", u.Hostname())
			}

			ipv6 := "[fd01:1:3:1528::10bf]:443"
			turl = fmt.Sprintf("https://%s/foo/bar", ipv6)
			u, err = m.TransferURL(ctx, turl)
			if err != nil {
				t.Fatal(err)
			}
			if u.Host != ipv6 {
				t.Errorf("host=%s", u.Host)
			}
		}

		// hostname should be returned by TransferURL when there are multiple management IPs
		for _, nc := range host.Config.VirtualNicManagerInfo.NetConfig {
			if nc.NicType == string(types.HostVirtualNicManagerNicTypeManagement) {
				host.Config.VirtualNicManagerInfo.NetConfig = append(host.Config.VirtualNicManagerInfo.NetConfig, nc)
				break
			}
		}

		for i := 0; i < 2; i++ { // 2nd time is to validate the cached value
			turl := "https://esx2:443/foo/bar"
			u, err := m.TransferURL(ctx, turl)
			if err != nil {
				t.Fatal(err)
			}
			if u.Hostname() != "esx2" {
				t.Errorf("hostname=%s", u.Hostname())
			}
		}

		// error should be returned if HostSystem.Config is nil
		host.Config = nil
		m, err = ops.FileManager(ctx)
		if err != nil {
			t.Fatal(err)
		}

		turl := "https://noconfig:443/foo/bar"
		u, err := m.TransferURL(ctx, turl)
		if err == nil {
			t.Errorf("expected error (url=%s)", u)
		}
	})
}
