package scaleway

import (
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/scaleway/scaleway-cli/pkg/api"
)

// Bool returns a pointer to of the bool value passed in.
func Bool(val bool) *bool {
	return &val
}

// String returns a pointer to of the string value passed in.
func String(val string) *string {
	return &val
}

// DetachIP detaches an IP from a server
func DetachIP(s *api.ScalewayAPI, ipID string) error {
	var update struct {
		Address      string `json:"address"`
		ID           string `json:"id"`
		Organization string `json:"organization"`
	}

	ip, err := s.GetIP(ipID)
	if err != nil {
		return err
	}
	update.Address = ip.IP.Address
	update.ID = ip.IP.ID
	update.Organization = ip.IP.Organization

	resp, err := s.PutResponse(api.ComputeAPI, fmt.Sprintf("ips/%s", ipID), update)
	if err != nil {
		return err
	}
	if resp.StatusCode != http.StatusOK {
		return err
	}
	resp.Body.Close()
	return nil
}

// NOTE copied from github.com/scaleway/scaleway-cli/pkg/api/helpers.go
// the helpers.go file pulls in quite a lot dependencies, and they're just convenience wrappers anyway

func deleteServerSafe(s *api.ScalewayAPI, serverID string) error {
	server, err := s.GetServer(serverID)
	if err != nil {
		return err
	}

	if server.State != "stopped" {
		if err := s.PostServerAction(serverID, "poweroff"); err != nil {
			return err
		}
		if err := waitForServerState(s, serverID, "stopped"); err != nil {
			return err
		}
	}

	if err := s.DeleteServer(serverID); err != nil {
		return err
	}
	if rootVolume, ok := server.Volumes["0"]; ok {
		if err := s.DeleteVolume(rootVolume.Identifier); err != nil {
			return err
		}
	}

	return nil
}

func waitForServerState(s *api.ScalewayAPI, serverID string, targetState string) error {
	var server *api.ScalewayServer
	var err error

	var currentState string

	for {
		server, err = s.GetServer(serverID)
		if err != nil {
			return err
		}
		if currentState != server.State {
			log.Printf("[DEBUG] Server changed state to %q\n", server.State)
			currentState = server.State
		}
		if server.State == targetState {
			break
		}
		time.Sleep(1 * time.Second)
	}

	return nil
}