// +build !unit

// Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
//
//    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
//
//         http://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 main

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

	"git.openstack.org/openstack/golang-client.git/openstack"
	"git.openstack.org/openstack/golang-client.git/volume/v2"
)

// Volume examples.
func main() {
	config := getConfig()

	// Authenticate with a username, password, tenant id.
	creds := openstack.AuthOpts{
		AuthUrl:     config.Host,
		ProjectName: config.ProjectName,
		Username:    config.Username,
		Password:    config.Password,
	}
	auth, err := openstack.DoAuthRequest(creds)
	if err != nil {
		panicString := fmt.Sprint("There was an error authenticating:", err)
		panic(panicString)
	}
	if !auth.GetExpiration().After(time.Now()) {
		panic("There was an error. The auth token has an invalid expiration.")
	}

	// Find the endpoint for the volume v2 service.
	url, err := auth.GetEndpoint("volumev2", "")
	if url == "" || err != nil {
		panic("v2 volume service url not found during authentication")
	}

	// Make a new client with these creds
	sess, err := openstack.NewSession(nil, auth, nil)
	if err != nil {
		panicString := fmt.Sprint("Error crating new Session:", err)
		panic(panicString)
	}

	volumeService := volume.Service{
		Session: *sess,
		Client:  *http.DefaultClient,
		URL:     url, // We're forcing Volume v2 for now
	}
	volumesDetails, err := volumeService.VolumesDetail()
	if err != nil {
		panicString := fmt.Sprint("Cannot access volumes:", err)
		panic(panicString)
	}

	var volumeIDs = make([]string, 0)
	for _, element := range volumesDetails {
		volumeIDs = append(volumeIDs, element.ID)
	}

	if len(volumeIDs) == 0 {
		panicString := fmt.Sprint("No volumes found, check to make sure access is correct")
		panic(panicString)
	}
}