package instance

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

type StepUploadX509Cert struct{}

func (s *StepUploadX509Cert) Run(state map[string]interface{}) multistep.StepAction {
	comm := state["communicator"].(packer.Communicator)
	config := state["config"].(*Config)
	ui := state["ui"].(packer.Ui)

	x509RemoteCertPath := config.X509UploadPath + "/cert.pem"
	x509RemoteKeyPath := config.X509UploadPath + "/key.pem"

	ui.Say("Uploading X509 Certificate...")
	if err := s.uploadSingle(comm, x509RemoteCertPath, config.X509CertPath); err != nil {
		state["error"] = fmt.Errorf("Error uploading X509 cert: %s", err)
		ui.Error(state["error"].(error).Error())
		return multistep.ActionHalt
	}

	if err := s.uploadSingle(comm, x509RemoteKeyPath, config.X509KeyPath); err != nil {
		state["error"] = fmt.Errorf("Error uploading X509 cert: %s", err)
		ui.Error(state["error"].(error).Error())
		return multistep.ActionHalt
	}

	state["x509RemoteCertPath"] = x509RemoteCertPath
	state["x509RemoteKeyPath"] = x509RemoteKeyPath

	return multistep.ActionContinue
}

func (s *StepUploadX509Cert) Cleanup(map[string]interface{}) {}

func (s *StepUploadX509Cert) uploadSingle(comm packer.Communicator, dst, src string) error {
	f, err := os.Open(src)
	if err != nil {
		return err
	}
	defer f.Close()

	return comm.Upload(dst, f)
}