/*
 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

     https://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 remote

import (
	"fmt"

	"github.com/spf13/cobra"

	"opendev.org/airship/airshipctl/pkg/config"
	"opendev.org/airship/airshipctl/pkg/environment"
	"opendev.org/airship/airshipctl/pkg/remote"
)

// NewPowerOffCommand provides a command to shutdown a remote host.
func NewPowerOffCommand(rootSettings *environment.AirshipCTLSettings) *cobra.Command {
	var phase string
	cmd := &cobra.Command{
		Use:   "poweroff SYSTEM_ID",
		Short: "Shutdown a host",
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			m, err := remote.NewManager(rootSettings, phase, remote.ByName(args[0]))
			if err != nil {
				return err
			}

			for _, host := range m.Hosts {
				if err := host.SystemPowerOff(host.Context); err != nil {
					return err
				}

				fmt.Fprintf(cmd.OutOrStdout(), "Remote host %s powered off\n", args[0])
			}

			return nil
		},
	}

	flags := cmd.Flags()
	flags.StringVar(&phase, flagPhase, config.BootstrapPhase, flagPhaseDescription)

	return cmd
}