// Prints out the output of tasks
func printTaskList(taskList []photon.Task, c *cli.Context) error {
	if c.GlobalIsSet("non-interactive") {
		for _, task := range taskList {
			fmt.Printf("%s\t%s\t%s\t%d\t%d\n", task.ID, task.State, task.Operation, task.StartedTime, task.EndTime-task.StartedTime)
		}
	} else if utils.NeedsFormatting(c) {
		utils.FormatObjects(taskList, os.Stdout, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "\nTask\tStart Time\tDuration\n")

		for _, task := range taskList {
			var duration int64
			startTime := timestampToString(task.StartedTime)
			if task.EndTime-task.StartedTime > 0 {
				duration = (task.EndTime - task.StartedTime) / 1000
			} else {
				duration = 0
			}
			fmt.Fprintf(w, "%s\t%s\t%.2d:%.2d:%.2d\n", task.ID, startTime, duration/3600, (duration/60)%60, duration%60)
			err := w.Flush()
			if err != nil {
				return err
			}
			fmt.Printf("%s, %s\n", task.Operation, task.State)
		}
		if len(taskList) > 0 {
			fmt.Printf("\nYou can run 'photon task show <id>' for more information\n")
		}
		fmt.Printf("Total: %d\n", len(taskList))
	}

	return nil
}

func setDefaultNetwork(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "network set-default <id>")
	if err != nil {
		return err
	}
	id := c.Args().First()

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	task, err := client.Esxclient.Subnets.SetDefault(id)
	if err != nil {
		return err
	}

	if confirmed(utils.IsNonInteractive(c)) {
		id, err := waitOnTaskOperation(task.ID, c)
		if err != nil {
			return err
		}

		if utils.NeedsFormatting(c) {
			network, err := client.Esxclient.Subnets.Get(id)
			if err != nil {
				return err
			}
			utils.FormatObject(network, w, c)
		}
	} else {
		fmt.Println("OK. Canceled")
	}
	return nil
}

// Retrieves availability zone against specified id.
func showAvailabilityZone(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "availability-zone show <id>")
	if err != nil {
		return err
	}
	id := c.Args().First()

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	zone, err := client.Esxclient.AvailabilityZones.Get(id)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		fmt.Printf("%s\t%s\t%s\t%s\n", zone.ID, zone.Name, zone.Kind, zone.State)
	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(zone, w, c)
	} else {
		fmt.Printf("AvailabilityZone ID: %s\n", zone.ID)
		fmt.Printf("  Name:        %s\n", zone.Name)
		fmt.Printf("  Kind:        %s\n", zone.Kind)
		fmt.Printf("  State:       %s\n", zone.State)
	}

	return nil
}

// Set host's availability zone with the specified host ID, returns an error if one occurred
func setHostAvailabilityZone(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 2, "host set-availability-zone <id> <availability-zone-id>")
	if err != nil {
		return err
	}
	id := c.Args().First()
	availabilityZoneId := c.Args()[1]

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	setAvailabilityZoneSpec := photon.HostSetAvailabilityZoneOperation{}
	setAvailabilityZoneSpec.AvailabilityZoneId = availabilityZoneId
	setTask, err := client.Esxclient.Hosts.SetAvailabilityZone(id, &setAvailabilityZoneSpec)
	if err != nil {
		return err
	}
	id, err = waitOnTaskOperation(setTask.ID, c)
	if err != nil {
		return err
	}
	if utils.NeedsFormatting(c) {
		host, err := client.Esxclient.Hosts.Get(id)
		if err != nil {
			return err
		}
		utils.FormatObject(host, w, c)
	}

	return nil
}

func showNetwork(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "network show <id>")
	if err != nil {
		return err
	}
	id := c.Args().First()

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	network, err := client.Esxclient.Subnets.Get(id)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		portGroups := getCommaSeparatedStringFromStringArray(network.PortGroups)
		fmt.Printf("%s\t%s\t%s\t%s\t%s\t%t\n", network.ID, network.Name, network.State, portGroups,
			network.Description, network.IsDefault)
	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(network, w, c)
	} else {
		fmt.Printf("Network ID: %s\n", network.ID)
		fmt.Printf("  Name:        %s\n", network.Name)
		fmt.Printf("  State:       %s\n", network.State)
		fmt.Printf("  Description: %s\n", network.Description)
		fmt.Printf("  Port Groups: %s\n", network.PortGroups)
		fmt.Printf("  Is Default: %t\n", network.IsDefault)
	}

	return nil
}

// Sends a "resize cluster" request to the API client based on the cli.Context
// Returns an error if one occurred
func resizeCluster(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 2, "cluster resize <id> <new worker count> [<options>]")
	if err != nil {
		return err
	}

	cluster_id := c.Args()[0]
	worker_count_string := c.Args()[1]
	worker_count, err := strconv.Atoi(worker_count_string)
	wait_for_ready := c.IsSet("wait-for-ready")

	if len(cluster_id) == 0 || err != nil || worker_count <= 0 {
		return fmt.Errorf("Provide a valid cluster ID and worker count")
	}

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	if !utils.IsNonInteractive(c) {
		fmt.Printf("\nResizing cluster %s to worker count %d\n", cluster_id, worker_count)
	}

	if confirmed(utils.IsNonInteractive(c)) {
		resizeSpec := photon.ClusterResizeOperation{}
		resizeSpec.NewWorkerCount = worker_count
		resizeTask, err := client.Esxclient.Clusters.Resize(cluster_id, &resizeSpec)
		if err != nil {
			return err
		}

		_, err = waitOnTaskOperation(resizeTask.ID, c)
		if err != nil {
			return err
		}

		if wait_for_ready {
			cluster, err := waitForCluster(cluster_id)
			if err != nil {
				return err
			}
			if utils.NeedsFormatting(c) {
				utils.FormatObject(cluster, w, c)
			} else {
				fmt.Printf("Cluster %s is ready\n", cluster.ID)
			}
		} else {
			fmt.Println("Note: A background task is running to gradually resize the cluster to its target capacity.")
			fmt.Printf("You may continue to use the cluster. You can run 'cluster show %s'\n", resizeTask.Entity.ID)
			fmt.Println("to see the state of the cluster. If the resize operation is still in progress, the cluster state")
			fmt.Println("will show as RESIZING. Once the cluster is resized, the cluster state will show as READY.")
		}
	} else {
		fmt.Println("Cancelled")
	}

	return nil
}

// Retrieves a list of projects, returns an error if one occurred
func listProjects(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 0, "project list [<options>]")
	if err != nil {
		return err
	}
	tenantName := c.String("tenant")

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	tenant, err := verifyTenant(tenantName)
	if err != nil {
		return err
	}

	projects, err := client.Esxclient.Tenants.GetProjects(tenant.ID, nil)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		for _, t := range projects.Items {
			limits := quotaLineItemListToString(t.ResourceTicket.Limits)
			usage := quotaLineItemListToString(t.ResourceTicket.Usage)
			fmt.Printf("%s\t%s\t%s\t%s\n", t.ID, t.Name, limits, usage)
		}
	} else if utils.NeedsFormatting(c) {
		utils.FormatObjects(projects.Items, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "ID\tName\tLimit\tUsage\n")
		for _, t := range projects.Items {
			rt := t.ResourceTicket
			for i := 0; i < len(rt.Limits); i++ {
				if i == 0 {
					fmt.Fprintf(w, "%s\t%s\t%s %g %s\t%s %g %s\n", t.ID, t.Name,
						rt.Limits[i].Key, rt.Limits[i].Value, rt.Limits[i].Unit,
						rt.Usage[i].Key, rt.Usage[i].Value, rt.Usage[i].Unit)
				} else {
					fmt.Fprintf(w, "\t\t%s %g %s\t%s %g %s\n",
						rt.Limits[i].Key, rt.Limits[i].Value, rt.Limits[i].Unit,
						rt.Usage[i].Key, rt.Usage[i].Value, rt.Usage[i].Unit)
				}
			}
			for i := len(rt.Limits); i < len(rt.Usage); i++ {
				fmt.Fprintf(w, "\t\t\t%s %g %s\n", rt.Usage[i].Key, rt.Usage[i].Value, rt.Usage[i].Unit)
			}
		}
		err := w.Flush()
		if err != nil {
			return err
		}
		fmt.Printf("\nTotal projects: %d\n", len(projects.Items))
	}
	return nil
}

// Show project info with the specified project id, returns an error if one occurred
func showProject(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "project show <id>")
	if err != nil {
		return err
	}
	id := c.Args().First()

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	project, err := client.Esxclient.Projects.Get(id)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		securityGroups := []string{}
		for _, s := range project.SecurityGroups {
			securityGroups = append(securityGroups, fmt.Sprintf("%s:%t", s.Name, s.Inherited))
		}
		scriptSecurityGroups := strings.Join(securityGroups, ",")
		limits := quotaLineItemListToString(project.ResourceTicket.Limits)
		usages := quotaLineItemListToString(project.ResourceTicket.Usage)

		fmt.Printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n", project.ID, project.Name, project.ResourceTicket.TenantTicketID,
			project.ResourceTicket.TenantTicketName, limits, usages, scriptSecurityGroups)
	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(project, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "Project ID: %s\n", project.ID)
		fmt.Fprintf(w, "  Name: %s\n", project.Name)
		fmt.Fprintf(w, "  TenantTicketID: %s\n", project.ResourceTicket.TenantTicketID)
		fmt.Fprintf(w, "    TenantTicketName: %s\n", project.ResourceTicket.TenantTicketName)
		fmt.Fprintf(w, "    Limits:\n")
		for _, l := range project.ResourceTicket.Limits {
			fmt.Fprintf(w, "      %s\t%g\t%s\n", l.Key, l.Value, l.Unit)
		}
		fmt.Fprintf(w, "    Usage:\n")
		for _, u := range project.ResourceTicket.Usage {
			fmt.Fprintf(w, "      %s\t%g\t%s\n", u.Key, u.Value, u.Unit)
		}
		if len(project.SecurityGroups) != 0 {
			fmt.Fprintf(w, "  SecurityGroups:\n")
			for _, s := range project.SecurityGroups {
				fmt.Fprintf(w, "    %s\t%t\n", s.Name, s.Inherited)
			}
		}
		err = w.Flush()
		if err != nil {
			return err
		}
	}
	return nil
}

// Sends a "show cluster" request to the API client based on the cli.Context
// Returns an error if one occurred
func showCluster(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "cluster show <id>")
	if err != nil {
		return err
	}
	id := c.Args().First()

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	cluster, err := client.Esxclient.Clusters.Get(id)
	if err != nil {
		return err
	}

	vms, err := client.Esxclient.Clusters.GetVMs(id)
	if err != nil {
		return err
	}

	var master_vms []photon.VM
	for _, vm := range vms.Items {
		for _, tag := range vm.Tags {
			if strings.Count(tag, ":") == 2 && !strings.Contains(strings.ToLower(tag), "worker") {
				master_vms = append(master_vms, vm)
				break
			}
		}
	}

	if c.GlobalIsSet("non-interactive") {
		extendedProperties := strings.Trim(strings.TrimLeft(fmt.Sprint(cluster.ExtendedProperties), "map"), "[]")
		fmt.Printf("%s\t%s\t%s\t%s\t%d\t%s\n", cluster.ID, cluster.Name, cluster.State, cluster.Type,
			cluster.WorkerCount, extendedProperties)
	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(cluster, w, c)
	} else {
		fmt.Println("Cluster ID:            ", cluster.ID)
		fmt.Println("  Name:                ", cluster.Name)
		fmt.Println("  State:               ", cluster.State)
		fmt.Println("  Type:                ", cluster.Type)
		fmt.Println("  Worker count:        ", cluster.WorkerCount)
		fmt.Println("  Extended Properties: ", cluster.ExtendedProperties)
		fmt.Println()
	}

	err = printClusterVMs(master_vms, c.GlobalIsSet("non-interactive"))
	if err != nil {
		return err
	}

	return nil
}

// Shows an image based on id
func showImage(c *cli.Context, w io.Writer) error {
	id := c.Args().First()

	if !utils.IsNonInteractive(c) {
		var err error
		id, err = askForInput("Image id: ", id)
		if err != nil {
			return err
		}
	}

	if len(id) == 0 {
		return fmt.Errorf("Please provide image id")
	}

	var err error
	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	image, err := client.Esxclient.Images.Get(id)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		settings := []string{}
		for _, setting := range image.Settings {
			settings = append(settings, fmt.Sprintf("%s:%s", setting.Name, setting.DefaultValue))
		}
		scriptSettings := strings.Join(settings, ",")
		fmt.Printf("%s\t%s\t%s\t%d\t%s\t%s\t%s\t%s\n", image.ID, image.Name, image.State, image.Size, image.ReplicationType,
			image.ReplicationProgress, image.SeedingProgress, scriptSettings)

	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(image, w, c)
	} else {
		fmt.Printf("Image ID: %s\n", image.ID)
		fmt.Printf("  Name:                       %s\n", image.Name)
		fmt.Printf("  State:                      %s\n", image.State)
		fmt.Printf("  Size:                       %d Byte(s)\n", image.Size)
		fmt.Printf("  Image Replication Type:     %s\n", image.ReplicationType)
		fmt.Printf("  Image Replication Progress: %s\n", image.ReplicationProgress)
		fmt.Printf("  Image Seeding Progress:     %s\n", image.SeedingProgress)
		fmt.Printf("  Settings: \n")
		for _, setting := range image.Settings {
			fmt.Printf("    %s : %s\n", setting.Name, setting.DefaultValue)
		}
	}

	return nil
}

// Sends a show resource-ticket task to client based on the cli.Context
// Returns an error if one occurred
func showResourceTicket(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "resource-ticket show <name> [<options>]")
	if err != nil {
		return err
	}
	name := c.Args().First()
	tenantName := c.String("tenant")

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	tenant, err := verifyTenant(tenantName)
	if err != nil {
		return err
	}

	rt, err := findResourceTicket(tenant.ID, name)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		usage := quotaLineItemListToString(rt.Usage)
		limits := quotaLineItemListToString(rt.Limits)
		fmt.Printf("%s\t%s\t%s\t%s\n", rt.Name, rt.ID, limits, usage)
	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(rt, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "ID\tName\tLimit\tUsage\n")
		for i := 0; i < len(rt.Limits); i++ {
			if i == 0 {
				fmt.Fprintf(w, "%s\t%s\t%s %g %s\t%s %g %s\n", rt.ID, rt.Name,
					rt.Limits[i].Key, rt.Limits[i].Value, rt.Limits[i].Unit,
					rt.Usage[i].Key, rt.Usage[i].Value, rt.Usage[i].Unit)
			} else {
				fmt.Fprintf(w, "\t\t%s %g %s\t%s %g %s\n",
					rt.Limits[i].Key, rt.Limits[i].Value, rt.Limits[i].Unit,
					rt.Usage[i].Key, rt.Usage[i].Value, rt.Usage[i].Unit)
			}
		}
		err := w.Flush()
		if err != nil {
			return err
		}
	}

	return nil
}

// Sends a create availability-zone task to client based on the cli.Context
// Returns an error if one occurred
func createAvailabilityZone(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 0, "availability-zone create [<options>]")
	if err != nil {
		return err
	}
	name := c.String("name")

	if !utils.IsNonInteractive(c) {
		var err error
		name, err = askForInput("AvailabilityZone name: ", name)
		if err != nil {
			return err
		}
	}

	if len(name) == 0 {
		return fmt.Errorf("Please provide availability zone name")
	}

	azSpec := &photon.AvailabilityZoneCreateSpec{
		Name: name,
	}

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	createTask, err := client.Esxclient.AvailabilityZones.Create(azSpec)
	if err != nil {
		return err
	}

	id, err := waitOnTaskOperation(createTask.ID, c)
	if err != nil {
		return err
	}

	if utils.NeedsFormatting(c) {
		zone, err := client.Esxclient.AvailabilityZones.Get(id)
		if err != nil {
			return err
		}
		utils.FormatObject(zone, w, c)
	}

	return nil
}

// Retrieves a list of flavors
func listFlavors(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 0, "flavor list [<options>]")
	if err != nil {
		return err
	}
	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	name := c.String("name")
	kind := c.String("kind")
	options := &photon.FlavorGetOptions{
		Name: name,
		Kind: kind,
	}

	flavors, err := client.Esxclient.Flavors.GetAll(options)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		for _, flavor := range flavors.Items {
			costs := quotaLineItemListToString(flavor.Cost)
			fmt.Printf("%s\t%s\t%s\t%s\n", flavor.ID, flavor.Name, flavor.Kind, costs)
		}
	} else if utils.NeedsFormatting(c) {
		utils.FormatObjects(flavors.Items, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "ID\tName\tKind\tCost\n")
		for _, flavor := range flavors.Items {
			printQuotaList(w, flavor.Cost, flavor.ID, flavor.Name, flavor.Kind)
		}
		err = w.Flush()
		if err != nil {
			return err
		}
		fmt.Printf("Total: %d\n", len(flavors.Items))
	}

	return nil
}

// Retrieves a list of resource tickets, returns an error if one occurred
func listResourceTickets(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 0, "resource-ticket list [<options>]")
	if err != nil {
		return err
	}
	tenantName := c.String("tenant")

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	tenant, err := verifyTenant(tenantName)
	if err != nil {
		return err
	}

	tickets, err := client.Esxclient.Tenants.GetResourceTickets(tenant.ID, nil)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		for _, t := range tickets.Items {
			limits := quotaLineItemListToString(t.Limits)
			fmt.Printf("%s\t%s\t%s\n", t.ID, t.Name, limits)
		}
	} else if utils.NeedsFormatting(c) {
		utils.FormatObjects(tickets.Items, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "ID\tName\tLimit\n")
		for _, t := range tickets.Items {
			printQuotaList(w, t.Limits, t.ID, t.Name)
		}
		err := w.Flush()
		if err != nil {
			return err
		}
		fmt.Printf("\nTotal resource tickets: %d\n", len(tickets.Items))
	}
	return nil
}

// Lists all images
func listImages(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 0, "image list [<options>]")
	if err != nil {
		return err
	}
	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	name := c.String("name")
	options := &photon.ImageGetOptions{
		Name: name,
	}
	images, err := client.Esxclient.Images.GetAll(options)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		for _, image := range images.Items {
			fmt.Printf("%s\t%s\t%s\t%d\t%s\t%s\t%s\n", image.ID, image.Name, image.State, image.Size,
				image.ReplicationType, image.ReplicationProgress, image.SeedingProgress)
		}
	} else if utils.NeedsFormatting(c) {
		utils.FormatObjects(images.Items, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "ID\tName\tState\tSize(Byte)\tReplication_type\tReplicationProgress\tSeedingProgress\n")
		for _, image := range images.Items {
			fmt.Fprintf(w, "%s\t%s\t%s\t%d\t%s\t%s\t%s\n", image.ID, image.Name, image.State, image.Size,
				image.ReplicationType, image.ReplicationProgress, image.SeedingProgress)
		}
		err = w.Flush()
		if err != nil {
			return err
		}
		fmt.Printf("\nTotal: %d\n", len(images.Items))
	}

	return nil
}

func listNetworks(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 0, "network list [<options>]")
	if err != nil {
		return err
	}
	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	name := c.String("name")
	options := &photon.SubnetGetOptions{
		Name: name,
	}

	networks, err := client.Esxclient.Subnets.GetAll(options)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		for _, network := range networks.Items {
			fmt.Printf("%s\t%s\t%s\t%s\t%s\n", network.ID, network.Name, network.State, network.PortGroups, network.Description)
		}
	} else if utils.NeedsFormatting(c) {
		utils.FormatObjects(networks.Items, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "ID\tName\tState\tPortGroups\tDescriptions\tIsDefault\n")
		for _, network := range networks.Items {
			fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%t\n", network.ID, network.Name, network.State, network.PortGroups,
				network.Description, network.IsDefault)
		}
		err = w.Flush()
		if err != nil {
			return err
		}
		fmt.Printf("Total: %d\n", len(networks.Items))
	}

	return nil
}

func waitOnTaskOperation(taskId string, c *cli.Context) (string, error) {
	var task *photon.Task
	var err error
	needsFormatting := utils.NeedsFormatting(c)
	if c.GlobalIsSet("non-interactive") || needsFormatting {
		task, err = client.Esxclient.Tasks.Wait(taskId)
		if err != nil {
			return "", err
		}
		if !needsFormatting {
			fmt.Println(task.Entity.ID)
		}
	} else {
		task, err = pollTask(taskId)
		if err != nil {
			return "", err
		}
		fmt.Printf("%s completed for '%s' entity %s\n", task.Operation, task.Entity.Kind, task.Entity.ID)
	}
	return task.Entity.ID, err
}

// Show host info with the specified host ID, returns an error if one occurred
func showHost(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "host show <id>")
	if err != nil {
		return err
	}
	id := c.Args().First()

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	host, err := client.Esxclient.Hosts.Get(id)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		tag := strings.Trim(fmt.Sprint(host.Tags), "[]")
		scriptTag := strings.Replace(tag, " ", ",", -1)
		metadata := strings.Trim(strings.TrimLeft(fmt.Sprint(host.Metadata), "map"), "[]")
		scriptMetadata := strings.Replace(metadata, " ", ",", -1)
		fmt.Printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n", host.ID, host.Username, host.Password, host.Address,
			scriptTag, host.State, scriptMetadata, host.AvailabilityZone, host.EsxVersion)
	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(host, w, c)
	} else {
		fmt.Println("Host ID: ", host.ID)
		fmt.Println("  Username:          ", host.Username)
		fmt.Println("  Password:          ", host.Password)
		fmt.Println("  IP:                ", host.Address)
		fmt.Println("  Tags:              ", host.Tags)
		fmt.Println("  State:             ", host.State)
		fmt.Println("  Metadata:          ", host.Metadata)
		fmt.Println("  AvailabilityZone:  ", host.AvailabilityZone)
		fmt.Println("  Version:           ", host.EsxVersion)
	}

	return nil
}

func showTenant(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 1, "tenant show <id>")
	if err != nil {
		return err
	}
	id := c.Args().First()

	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	tenant, err := client.Esxclient.Tenants.Get(id)
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		securityGroups := []string{}
		for _, s := range tenant.SecurityGroups {
			securityGroups = append(securityGroups, fmt.Sprintf("%s:%t", s.Name, s.Inherited))
		}
		scriptSecurityGroups := strings.Join(securityGroups, ",")
		fmt.Printf("%s\t%s\t%s\n", tenant.ID, tenant.Name, scriptSecurityGroups)
	} else if utils.NeedsFormatting(c) {
		utils.FormatObject(tenant, w, c)
	} else {
		fmt.Println("Tenant ID: ", tenant.ID)
		fmt.Println("  Name:              ", tenant.Name)
		for i, s := range tenant.SecurityGroups {
			fmt.Printf("    SecurityGroups %d:\n", i+1)
			fmt.Println("      Name:          ", s.Name)
			fmt.Println("      Inherited:     ", s.Inherited)
		}
	}

	return nil
}

// Retrieves a list of tenants, returns an error if one occurred
func listTenants(c *cli.Context, w io.Writer) error {
	err := checkArgNum(c.Args(), 0, "tenant list")
	if err != nil {
		return err
	}
	client.Esxclient, err = client.GetClient(utils.IsNonInteractive(c))
	if err != nil {
		return err
	}

	tenants, err := client.Esxclient.Tenants.GetAll()
	if err != nil {
		return err
	}

	if c.GlobalIsSet("non-interactive") {
		for _, tenant := range tenants.Items {
			fmt.Printf("%s\t%s\n", tenant.ID, tenant.Name)
		}
	} else if utils.NeedsFormatting(c) {
		utils.FormatObjects(tenants.Items, w, c)
	} else {
		w := new(tabwriter.Writer)
		w.Init(os.Stdout, 4, 4, 2, ' ', 0)
		fmt.Fprintf(w, "ID\tName\n")
		for _, tenant := range tenants.Items {
			fmt.Fprintf(w, "%s\t%s\n", tenant.ID, tenant.Name)
		}
		err = w.Flush()
		if err != nil {
			return err
		}
		fmt.Printf("\nTotal: %d\n", len(tenants.Items))
	}

	return nil
}