func addChartRepoHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: add chart repository"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	cr := &repo.Repo{}
	if err := httputil.Decode(w, r, cr); err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	if string(cr.Format) == "" {
		cr.Format = repo.GCSRepoFormat
	}

	if string(cr.Type) == "" {
		cr.Type = repo.GCSRepoType
	}

	if err := c.Manager.AddRepo(cr); err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	msg, _ := json.Marshal(cr.Name + " has been added to the list of chart repositories.")
	util.LogHandlerExitWithJSON(handler, w, msg, http.StatusCreated)
	return nil
}

func expanderSuccessHandler(w http.ResponseWriter, r *http.Request) {
	handler := "expandybird: expand"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	body, err := ioutil.ReadAll(r.Body)
	if err != nil {
		status := fmt.Sprintf("cannot read request body:%s", err)
		http.Error(w, status, http.StatusInternalServerError)
		return
	}

	svcReq := &expansion.ServiceRequest{}
	if err := json.Unmarshal(body, svcReq); err != nil {
		status := fmt.Sprintf("cannot unmarshal request body:%s\n%s\n", err, body)
		http.Error(w, status, http.StatusInternalServerError)
		return
	}

	/*
		if !reflect.DeepEqual(validRequestTestCaseData, *svcReq) {
			status := fmt.Sprintf("error in http handler:\nwant:%s\nhave:%s\n",
				util.ToJSONOrError(validRequestTestCaseData), util.ToJSONOrError(template))
			http.Error(w, status, http.StatusInternalServerError)
			return
		}
	*/

	svcResp := getValidServiceResponse()
	util.LogHandlerExitWithJSON(handler, w, svcResp, http.StatusOK)
}

func listRepoChartsHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: list repository charts"
	util.LogHandlerEntry(handler, r)
	repoURL, err := pos(w, r, 2)
	if err != nil {
		return err
	}

	values, err := url.ParseQuery(r.URL.RawQuery)
	if err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	var regex *regexp.Regexp
	regexString := values.Get("regex")
	if regexString != "" {
		regex, err = regexp.Compile(regexString)
		if err != nil {
			httputil.BadRequest(w, r, err)
			return nil
		}
	}

	repoCharts, err := c.Manager.ListRepoCharts(repoURL, regex)
	if err != nil {
		return err
	}

	util.LogHandlerExitWithJSON(handler, w, repoCharts, http.StatusOK)
	return nil
}

func getConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
	handler := "resourcifier: get configuration"
	util.LogHandlerEntry(handler, r)
	rtype, err := getPathVariable(w, r, "type", handler)
	if err != nil {
		return
	}

	rname, err := getPathVariable(w, r, "name", handler)
	if err != nil {
		return
	}

	c := &common.Configuration{
		Resources: []*common.Resource{
			{Name: rname, Type: rtype},
		},
	}

	output, err := backend.Configure(c, configurator.GetOperation)
	if err != nil {
		util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
		return
	}

	util.LogHandlerExit(handler, http.StatusOK, output, w)
	util.WriteYAML(handler, w, []byte(output), http.StatusOK)
}

func getCredential(w http.ResponseWriter, r *http.Request, handler string) *repo.Credential {
	util.LogHandlerEntry(handler, r)
	t := &repo.Credential{}
	if err := httputil.Decode(w, r, t); err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}
	return t
}

func getDeploymentRequest(w http.ResponseWriter, r *http.Request, handler string) *common.DeploymentRequest {
	util.LogHandlerEntry(handler, r)
	depReq := &common.DeploymentRequest{}
	if err := httputil.Decode(w, r, depReq); err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	return depReq
}

// Putting Type handlers here for now because deployments.go
// currently owns its own Manager backend and doesn't like to share.
func listChartsHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: list charts"
	util.LogHandlerEntry(handler, r)
	types, err := c.Manager.ListCharts()
	if err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	util.LogHandlerExitWithJSON(handler, w, types, http.StatusOK)
	return nil
}

func listDeploymentsHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: list deployments"
	util.LogHandlerEntry(handler, r)
	l, err := c.Manager.ListDeployments()
	if err != nil {
		util.LogAndReturnError(handler, http.StatusInternalServerError, err, w)
		return nil
	}
	var names []string
	for _, d := range l {
		names = append(names, d.Name)
	}

	util.LogHandlerExitWithJSON(handler, w, names, http.StatusOK)
	return nil
}

// NewService encapsulates code to open an HTTP server on the given address:port that serves the
// expansion API using the given Expander backend to do the actual expansion.  After calling
// NewService, call ListenAndServe to start the returned service.
func NewService(address string, port int, backend Expander) *Service {

	restful.EnableTracing(true)
	webService := new(restful.WebService)
	webService.Consumes(restful.MIME_JSON)
	webService.Produces(restful.MIME_JSON)
	handler := func(req *restful.Request, resp *restful.Response) {
		util.LogHandlerEntry("expansion service", req.Request)
		request := &ServiceRequest{}
		if err := req.ReadEntity(&request); err != nil {
			badRequest(resp, err.Error())
			return
		}

		reqMsg := fmt.Sprintf("\nhandling request:\n%s\n", util.ToYAMLOrError(request))
		util.LogHandlerText("expansion service", reqMsg)
		response, err := backend.ExpandChart(request)
		if err != nil {
			badRequest(resp, fmt.Sprintf("error expanding chart: %s", err))
			return
		}

		util.LogHandlerExit("expansion service", http.StatusOK, "OK", resp.ResponseWriter)
		respMsg := fmt.Sprintf("\nreturning response:\n%s\n", util.ToYAMLOrError(response.Resources))
		util.LogHandlerText("expansion service", respMsg)
		resp.WriteEntity(response)
	}
	webService.Route(
		webService.POST("/expand").
			To(handler).
			Doc("Expand a chart.").
			Reads(&ServiceRequest{}).
			Writes(&ServiceResponse{}))

	container := restful.DefaultContainer
	container.Add(webService)
	server := &http.Server{
		Addr:    fmt.Sprintf("%s:%d", address, port),
		Handler: container,
	}

	return &Service{
		webService: webService,
		server:     server,
		container:  container,
	}
}

func deleteDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: delete deployment"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	name, err := pos(w, r, 2)
	if err != nil {
		return err
	}

	d, err := c.Manager.DeleteDeployment(name, true)
	if err != nil {
		return err
	}

	util.LogHandlerExitWithJSON(handler, w, d, http.StatusOK)
	return nil
}

func getDeploymentHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: get deployment"
	util.LogHandlerEntry(handler, r)
	name, err := pos(w, r, 2)
	if err != nil {
		return nil
	}

	d, err := c.Manager.GetDeployment(name)
	if err != nil {
		util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
		return nil
	}

	util.LogHandlerExitWithJSON(handler, w, d, http.StatusOK)
	return nil
}

func expandHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: expand config"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	depReq := getDeploymentRequest(w, r, handler)
	if depReq != nil {
		c, err := c.Manager.Expand(depReq)
		if err != nil {
			httputil.BadRequest(w, r, err)
			return nil
		}

		util.LogHandlerExitWithJSON(handler, w, c, http.StatusCreated)
	}

	return nil
}

func getCredentialHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: get credential"
	util.LogHandlerEntry(handler, r)
	credentialName, err := pos(w, r, 2)
	if err != nil {
		return err
	}

	cr, err := c.Manager.GetCredential(credentialName)
	if err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	util.LogHandlerExitWithJSON(handler, w, cr, http.StatusOK)
	return nil
}

func getMetadataForChartHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: get chart metadata"
	util.LogHandlerEntry(handler, r)
	chartName, err := pos(w, r, 2)
	if err != nil {
		return err
	}

	metadata, err := c.Manager.GetMetadataForChart(chartName)
	if err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	util.LogHandlerExitWithJSON(handler, w, metadata, http.StatusOK)
	return nil
}

func listChartInstancesHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: list chart instances"
	util.LogHandlerEntry(handler, r)
	chartName, err := pos(w, r, 2)
	if err != nil {
		return err
	}

	instances, err := c.Manager.ListChartInstances(chartName)
	if err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	util.LogHandlerExitWithJSON(handler, w, instances, http.StatusOK)
	return nil
}

func getChartRepoHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: get repository"
	util.LogHandlerEntry(handler, r)
	repoURL, err := pos(w, r, 2)
	if err != nil {
		return err
	}

	cr, err := c.Manager.GetRepo(repoURL)
	if err != nil {
		httputil.BadRequest(w, r, err)
		return nil
	}

	util.LogHandlerExitWithJSON(handler, w, cr, http.StatusOK)
	return nil
}

func removeChartRepoHandlerFunc(w http.ResponseWriter, r *http.Request, c *router.Context) error {
	handler := "manager: remove chart repository"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	name, err := pos(w, r, 2)
	if err != nil {
		return err
	}

	err = c.Manager.RemoveRepo(name)
	if err != nil {
		return err
	}

	msg, _ := json.Marshal(name + " has been removed from the list of chart repositories.")
	util.LogHandlerExitWithJSON(handler, w, msg, http.StatusOK)
	return nil
}

func putConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
	handler := "resourcifier: update configuration"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	c := getConfiguration(w, r, handler)
	if c != nil {
		if _, err := backend.Configure(c, configurator.ReplaceOperation); err != nil {
			e := errors.New("cannot replace configuration: " + err.Error() + "\n")
			util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
			return
		}

		util.LogHandlerExitWithYAML(handler, w, c, http.StatusCreated)
		return
	}

	util.LogHandlerExit(handler, http.StatusOK, "OK", w)
}

func createConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
	handler := "resourcifier: create configuration"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	c := getConfiguration(w, r, handler)
	if c != nil {
		_, err := backend.Configure(c, configurator.CreateOperation)
		if err != nil {
			util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
			return
		}

		util.LogHandlerExitWithYAML(handler, w, c, http.StatusCreated)
		return
	}

	util.LogHandlerExit(handler, http.StatusOK, "OK", w)
}

func deleteConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
	handler := "resourcifier: delete configuration"
	util.LogHandlerEntry(handler, r)
	defer r.Body.Close()
	c := getConfiguration(w, r, handler)
	if c != nil {
		if _, err := backend.Configure(c, configurator.DeleteOperation); err != nil {
			e := errors.New("cannot delete configuration: " + err.Error() + "\n")
			util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
			return
		}

		w.WriteHeader(http.StatusNoContent)
		util.LogHandlerExit(handler, http.StatusNoContent, "No Content", w)
		return
	}

	util.LogHandlerExit(handler, http.StatusOK, "OK", w)
}