package digitalocean

import (
	"fmt"
	"github.com/mitchellh/multistep"
	"github.com/mitchellh/packer/packer"
	"log"
	"time"
)

type stepShutdown struct{}

func (s *stepShutdown) Run(state multistep.StateBag) multistep.StepAction {
	client := state.Get("client").(*DigitalOceanClient)
	c := state.Get("config").(config)
	ui := state.Get("ui").(packer.Ui)
	dropletId := state.Get("droplet_id").(uint)

	// Sleep arbitrarily before sending the request
	// Otherwise we get "pending event" errors, even though there isn't
	// one.
	log.Printf("Sleeping for %v, event_delay", c.RawEventDelay)
	time.Sleep(c.eventDelay)

	err := client.ShutdownDroplet(dropletId)

	if err != nil {
		err := fmt.Errorf("Error shutting down droplet: %s", err)
		state.Put("error", err)
		ui.Error(err.Error())
		return multistep.ActionHalt
	}

	ui.Say("Waiting for droplet to shutdown...")

	err = waitForDropletState("off", dropletId, client, c)
	if err != nil {
		err := fmt.Errorf("Error waiting for droplet to become 'off': %s", err)
		state.Put("error", err)
		ui.Error(err.Error())
		return multistep.ActionHalt
	}

	return multistep.ActionContinue
}

func (s *stepShutdown) Cleanup(state multistep.StateBag) {
	// no cleanup
}