// ListVars lists all environment variables.
func ListVars(settings *models.Settings) {
	helpers.SignIn(settings)
	envVars := helpers.ListEnvVars(settings)
	for key, value := range envVars {
		fmt.Printf("%s=%s\n", key, value)
	}
}

// Status prints out an environment healthcheck. The status of the environment
// and every service in the environment is printed out.
func Status(settings *models.Settings) {
	helpers.SignIn(settings)
	env := helpers.RetrieveEnvironment("pod", settings)
	fmt.Printf("%s (environment ID = %s):\n", env.Data.Name, env.ID)
	for _, service := range *env.Data.Services {
		if service.Type != "utility" {
			if service.Type == "code" {
				switch service.Size.(type) {
				case string:
					printLegacySizing(&service)
				default:
					printNewSizing(&service)
				}
			} else {
				switch service.Size.(type) {
				case string:
					sizeString := service.Size.(string)
					defer fmt.Printf("\t%s (size = %s, image = %s, status = %s) ID: %s\n", service.Label, sizeString, service.Name, service.DeployStatus, service.ID)
				default:
					serviceSize := service.Size.(map[string]interface{})
					defer fmt.Printf("\t%s (ram = %.0f, storage = %.0f, behavior = %s, type = %s, cpu = %.0f, image = %s, status = %s) ID: %s\n", service.Label, serviceSize["ram"], serviceSize["storage"], serviceSize["behavior"], serviceSize["type"], serviceSize["cpu"], service.Name, service.DeployStatus, service.ID)
				}
			}
		}
	}
}

// SupportIds prints out various IDs related to the associated environment to be
// used when contacting Catalyze support at [email protected]
func SupportIds(settings *models.Settings) {
	helpers.SignIn(settings)
	fmt.Printf(`EnvironmentID:  %s
UsersID:        %s
ServiceID:      %s
`, settings.EnvironmentID, settings.UsersID, settings.ServiceID)
}

// Export dumps all data from a database service and downloads the encrypted
// data to the local machine. The export is accomplished by first creating a
// backup. Once finished, the CLI asks where the file can be downloaded from.
// The file is downloaded, decrypted, and saved locally.
func Export(databaseLabel string, filePath string, force bool, settings *models.Settings) {
	helpers.PHIPrompt()
	helpers.SignIn(settings)
	if !force {
		if _, err := os.Stat(filePath); err == nil {
			fmt.Printf("File already exists at path '%s'. Specify `--force` to overwrite\n", filePath)
			os.Exit(1)
		}
	} else {
		os.Remove(filePath)
	}
	service := helpers.RetrieveServiceByLabel(databaseLabel, settings)
	if service == nil {
		fmt.Printf("Could not find a service with the label \"%s\"\n", databaseLabel)
		os.Exit(1)
	}
	task := helpers.CreateBackup(service.ID, settings)
	fmt.Printf("Export started (task ID = %s)\n", task.ID)
	fmt.Print("Polling until export finishes.")
	ch := make(chan string, 1)
	go helpers.PollTaskStatus(task.ID, ch, settings)
	status := <-ch
	task.Status = status
	if task.Status != "finished" {
		fmt.Printf("\nExport finished with illegal status \"%s\", aborting.\n", task.Status)
		helpers.DumpLogs(service, task, "backup", settings)
		os.Exit(1)
	}
	fmt.Printf("\nEnded in status '%s'\n", task.Status)
	job := helpers.RetrieveJobFromTaskID(task.ID, settings)
	fmt.Printf("Downloading export %s\n", job.ID)
	tempURL := helpers.RetrieveTempURL(job.ID, service.ID, settings)
	dir, dirErr := ioutil.TempDir("", "")
	if dirErr != nil {
		fmt.Println(dirErr.Error())
		os.Exit(1)
	}
	defer os.Remove(dir)
	tmpFile, tmpFileErr := ioutil.TempFile(dir, "")
	if tmpFileErr != nil {
		fmt.Println(tmpFileErr.Error())
		os.Exit(1)
	}
	resp, respErr := http.Get(tempURL.URL)
	if respErr != nil {
		fmt.Println(respErr.Error())
		os.Exit(1)
	}
	defer resp.Body.Close()
	io.Copy(tmpFile, resp.Body)
	fmt.Println("Decrypting...")
	tmpFile.Close()
	helpers.DecryptFile(tmpFile.Name(), job.Backup.Key, job.Backup.IV, filePath)
	fmt.Printf("%s exported successfully to %s\n", databaseLabel, filePath)
	helpers.DumpLogs(service, task, "backup", settings)
}

// ListUsers lists all users who have access to the associated environment.
func ListUsers(settings *models.Settings) {
	helpers.SignIn(settings)
	envUsers := helpers.ListEnvironmentUsers(settings)
	for _, userID := range envUsers.Users {
		if userID == settings.UsersID {
			fmt.Printf("%s (you)\n", userID)
		} else {
			defer fmt.Printf("%s\n", userID)
		}
	}
}

// Console opens a secure console to a code or database service. For code
// services, a command is required. This command is executed as root in the
// context of the application root directory. For database services, no command
// is needed - instead, the appropriate command for the database type is run.
// For example, for a postgres database, psql is run.
func Console(serviceLabel string, command string, settings *models.Settings) {
	helpers.SignIn(settings)
	service := helpers.RetrieveServiceByLabel(serviceLabel, settings)
	if service == nil {
		fmt.Printf("Could not find a service with the label \"%s\"\n", serviceLabel)
		os.Exit(1)
	}
	fmt.Printf("Opening console to %s (%s)\n", serviceLabel, service.ID)
	task := helpers.RequestConsole(command, service.ID, settings)
	fmt.Print("Waiting for the console to be ready. This might take a minute.")

	ch := make(chan string, 1)
	go helpers.PollConsoleJob(task.ID, service.ID, ch, settings)
	jobID := <-ch
	defer helpers.DestroyConsole(jobID, service.ID, settings)
	creds := helpers.RetrieveConsoleTokens(jobID, service.ID, settings)

	creds.URL = strings.Replace(creds.URL, "http", "ws", 1)
	fmt.Println("Connecting...")

	// BEGIN websocket impl
	config, _ := websocket.NewConfig(creds.URL, "ws://localhost:9443/")
	config.TlsConfig = &tls.Config{
		MinVersion: tls.VersionTLS12,
	}
	config.Header["X-Console-Token"] = []string{creds.Token}
	ws, err := websocket.DialConfig(config)
	if err != nil {
		panic(err)
	}
	defer ws.Close()
	fmt.Println("Connection opened")

	stdin, stdout, _ := term.StdStreams()
	fdIn, isTermIn := term.GetFdInfo(stdin)
	if !isTermIn {
		panic(errors.New("StdIn is not a terminal"))
	}
	oldState, err := term.SetRawTerminal(fdIn)
	if err != nil {
		panic(err)
	}

	done := make(chan bool)
	msgCh := make(chan []byte, 2)
	go webSocketDaemon(ws, &stdout, done, msgCh)

	signal.Notify(make(chan os.Signal, 1), os.Interrupt)

	defer term.RestoreTerminal(fdIn, oldState)
	go termDaemon(&stdin, ws)
	<-done
}

// ListInvites lists all pending invites for a given environment. After an
// invite is accepted, you can manage the users access with the `users`
// commands.
func ListInvites(settings *models.Settings) {
	helpers.SignIn(settings)
	invites := helpers.ListEnvironmentInvites(settings)
	if len(*invites) == 0 {
		fmt.Printf("There are no pending invites for %s\n", settings.EnvironmentName)
		return
	}
	fmt.Printf("Pending invites for %s:\n", settings.EnvironmentName)
	for _, invite := range *invites {
		fmt.Printf("\t%s %s\n", invite.Email, invite.Code)
	}
}

// DownloadBackup an existing backup to the local machine. The backup is encrypted
// throughout the entire journey and then decrypted once it is stored locally.
func DownloadBackup(serviceLabel string, backupID string, filePath string, force bool, settings *models.Settings) {
	helpers.PHIPrompt()
	helpers.SignIn(settings)
	if !force {
		if _, err := os.Stat(filePath); err == nil {
			fmt.Printf("File already exists at path '%s'. Specify `--force` to overwrite\n", filePath)
			os.Exit(1)
		}
	} else {
		os.Remove(filePath)
	}
	service := helpers.RetrieveServiceByLabel(serviceLabel, settings)
	if service == nil {
		fmt.Printf("Could not find a service with the label \"%s\"\n", serviceLabel)
		os.Exit(1)
	}
	job := helpers.RetrieveJob(backupID, service.ID, settings)
	if job.Type != "backup" || job.Status != "finished" {
		fmt.Println("Only 'finished' 'backup' jobs may be downloaded")
	}
	fmt.Printf("Downloading backup %s\n", backupID)
	tempURL := helpers.RetrieveTempURL(backupID, service.ID, settings)
	dir, dirErr := ioutil.TempDir("", "")
	if dirErr != nil {
		fmt.Println(dirErr.Error())
		os.Exit(1)
	}
	defer os.Remove(dir)
	tmpFile, tmpFileErr := ioutil.TempFile(dir, "")
	if tmpFileErr != nil {
		fmt.Println(tmpFileErr.Error())
		os.Exit(1)
	}
	resp, respErr := http.Get(tempURL.URL)
	if respErr != nil {
		fmt.Println(respErr.Error())
		os.Exit(1)
	}
	defer resp.Body.Close()
	io.Copy(tmpFile, resp.Body)
	tmpFile.Close()
	fmt.Println("Decrypting...")
	helpers.DecryptFile(tmpFile.Name(), job.Backup.Key, job.Backup.IV, filePath)
	fmt.Printf("%s backup downloaded successfully to %s\n", serviceLabel, filePath)
}

// Import imports data into a database service. The import is accomplished
// by encrypting the file locally, requesting a location that it can be uploaded
// to, then uploads the file. Once uploaded an automated service processes the
// file and acts according to the given parameters.
//
// The type of file that should be imported depends on the database. For
// PostgreSQL and MySQL, this should be a single `.sql` file. For Mongo, this
// should be a single tar'ed, gzipped archive (`.tar.gz`) of the database dump
// that you want to import.
func Import(databaseLabel string, filePath string, mongoCollection string, mongoDatabase string, wipeFirst bool, settings *models.Settings) {
	helpers.SignIn(settings)
	if _, err := os.Stat(filePath); os.IsNotExist(err) {
		fmt.Printf("A file does not exist at path '%s'\n", filePath)
		os.Exit(1)
	}
	service := helpers.RetrieveServiceByLabel(databaseLabel, settings)
	if service == nil {
		fmt.Printf("Could not find a service with the label \"%s\"\n", databaseLabel)
		os.Exit(1)
	}
	env := helpers.RetrieveEnvironment("spec", settings)
	pod := helpers.RetrievePodMetadata(env.PodID, settings)
	fmt.Printf("Importing '%s' into %s (ID = %s)\n", filePath, databaseLabel, service.ID)
	key := make([]byte, 32)
	iv := make([]byte, aes.BlockSize)
	rand.Read(key)
	rand.Read(iv)
	fmt.Println("Encrypting...")
	encrFilePath := helpers.EncryptFile(filePath, key, iv, pod.ImportRequiresLength)
	defer os.Remove(encrFilePath)
	options := map[string]string{}
	if mongoCollection != "" {
		options["mongoCollection"] = mongoCollection
	}
	if mongoDatabase != "" {
		options["mongoDatabase"] = mongoDatabase
	}
	fmt.Println("Uploading...")
	tempURL := helpers.RetrieveTempUploadURL(service.ID, settings)

	task := helpers.InitiateImport(tempURL.URL, encrFilePath, string(helpers.Base64Encode(helpers.Hex(key))), string(helpers.Base64Encode(helpers.Hex(iv))), options, wipeFirst, service.ID, settings)
	fmt.Printf("Processing import... (task ID = %s)\n", task.ID)

	ch := make(chan string, 1)
	go helpers.PollTaskStatus(task.ID, ch, settings)
	status := <-ch
	task.Status = status
	fmt.Printf("\nImport complete (end status = '%s')\n", task.Status)
	helpers.DumpLogs(service, task, "restore", settings)
	if task.Status != "finished" {
		os.Exit(1)
	}
}

// ListBackups lists the created backups for the service sorted from oldest to newest
func ListBackups(serviceLabel string, page int, pageSize int, settings *models.Settings) {
	helpers.SignIn(settings)
	service := helpers.RetrieveServiceByLabel(serviceLabel, settings)
	if service == nil {
		fmt.Printf("Could not find a service with the label \"%s\"\n", serviceLabel)
		os.Exit(1)
	}
	jobs := helpers.ListBackups(service.ID, page, pageSize, settings)
	sort.Sort(SortedJobs(*jobs))
	for _, job := range *jobs {
		fmt.Printf("%s %s (status = %s)\n", job.ID, job.CreatedAt, job.Status)
	}
	if len(*jobs) == pageSize && page == 1 {
		fmt.Println("(for older backups, try with --page 2 or adjust --page-size)")
	}
	if len(*jobs) == 0 && page == 1 {
		fmt.Println("No backups created yet for this service.")
	}
}

// CreateBackup a new backup
func CreateBackup(serviceLabel string, skipPoll bool, settings *models.Settings) {
	helpers.SignIn(settings)
	service := helpers.RetrieveServiceByLabel(serviceLabel, settings)
	if service == nil {
		fmt.Printf("Could not find a service with the label \"%s\"\n", serviceLabel)
		os.Exit(1)
	}
	task := helpers.CreateBackup(service.ID, settings)
	fmt.Printf("Backup started (task ID = %s)\n", task.ID)
	if !skipPoll {
		fmt.Print("Polling until backup finishes.")
		ch := make(chan string, 1)
		go helpers.PollTaskStatus(task.ID, ch, settings)
		status := <-ch
		task.Status = status
		fmt.Printf("\nEnded in status '%s'\n", task.Status)
		helpers.DumpLogs(service, task, "backup", settings)
		if task.Status != "finished" {
			os.Exit(1)
		}
	}
}

// SetVar adds a new environment variables or updates the value of an existing
// environment variables. Any changes to environment variables will not take
// effect until the service is redeployed by pushing new code or via
// `catalyze redeploy`.
func SetVar(variables []string, settings *models.Settings) {
	helpers.SignIn(settings)
	envVars := helpers.ListEnvVars(settings)

	envVarsMap := make(map[string]string, len(variables))
	for _, envVar := range variables {
		pieces := strings.Split(envVar, "=")
		if len(pieces) != 2 {
			fmt.Printf("Invalid variable format. Expected <key>=<value> but got %s\n", envVar)
			os.Exit(1)
		}
		envVarsMap[pieces[0]] = pieces[1]
	}

	for key := range envVarsMap {
		if _, ok := envVars[key]; ok {
			helpers.UnsetEnvVar(key, settings)
		}
	}

	helpers.SetEnvVars(envVarsMap, settings)
	fmt.Println("Set.")
}

// Redeploy offers a way of deploying a service without having to do a git push
// first. The same version of the currently running service is deployed with
// no changes.
func Redeploy(settings *models.Settings) {
	helpers.SignIn(settings)
	fmt.Printf("Redeploying %s\n", settings.ServiceID)
	helpers.RedeployService(settings)
	fmt.Println("Redeploy successful! Check the status and logs for updates")
}

// Metrics prints out metrics for a given service or if the service is not
// specified, metrics for the entire environment are printed.
func Metrics(serviceLabel string, jsonFlag bool, csvFlag bool, sparkFlag bool, streamFlag bool, mins int, settings *models.Settings) {
	if streamFlag && (jsonFlag || csvFlag || mins != 1) {
		fmt.Println("--stream cannot be used with a custom format and multiple records")
		os.Exit(1)
	}
	var singleRetriever func(mins int, settings *models.Settings) *models.Metrics
	if serviceLabel != "" {
		service := helpers.RetrieveServiceByLabel(serviceLabel, settings)
		if service == nil {
			fmt.Printf("Could not find a service with the label \"%s\"\n", serviceLabel)
			os.Exit(1)
		}
		settings.ServiceID = service.ID
		singleRetriever = helpers.RetrieveServiceMetrics
	}
	var transformer Transformer
	redraw := make(chan bool)
	if jsonFlag {
		transformer = Transformer{
			SingleRetriever: singleRetriever,
			DataTransformer: &JSONTransformer{},
		}
	} else if csvFlag {
		buffer := &bytes.Buffer{}
		transformer = Transformer{
			SingleRetriever: singleRetriever,
			DataTransformer: &CSVTransformer{
				HeadersWritten: false,
				GroupMode:      serviceLabel == "",
				Buffer:         buffer,
				Writer:         csv.NewWriter(buffer),
			},
		}
	} else if sparkFlag {
		// the spark lines interface stays up until closed by the user, so
		// we might as well keep updating it as long as it is there
		streamFlag = true
		mins = 60
		err := ui.Init()
		if err != nil {
			fmt.Println(err.Error())
			os.Exit(1)
		}
		defer ui.Close()
		ui.UseTheme("helloworld")

		p := ui.NewPar("PRESS q TO QUIT")
		p.HasBorder = false
		p.TextFgColor = ui.Theme().SparklineTitle
		ui.Body.AddRows(
			ui.NewRow(ui.NewCol(12, 0, p)),
		)

		transformer = Transformer{
			SingleRetriever: singleRetriever,
			DataTransformer: &SparkTransformer{
				Redraw:     redraw,
				SparkLines: make(map[string]*ui.Sparklines),
			},
		}
	} else {
		transformer = Transformer{
			SingleRetriever: singleRetriever,
			DataTransformer: &TextTransformer{},
		}
	}
	transformer.GroupRetriever = helpers.RetrieveEnvironmentMetrics
	transformer.Stream = streamFlag
	transformer.GroupMode = serviceLabel == ""
	transformer.Mins = mins
	transformer.settings = settings

	helpers.SignIn(settings)

	if sparkFlag {
		go transformer.process()

		ui.Body.Align()
		ui.Render(ui.Body)

		quit := make(chan bool)
		go maintainSparkLines(redraw, quit)
		<-quit
	} else {
		transformer.process()
	}
}

// RmInvite deletes an invite sent to a user. This invite must not already be
// accepted.
func RmInvite(inviteID string, settings *models.Settings) {
	helpers.SignIn(settings)
	helpers.DeleteInvite(inviteID, settings)
	fmt.Printf("Invite %s removed\n", inviteID)
}

// WhoAmI prints out your user ID. This can be used for adding users to
// environments via `catalyze adduser`, removing users from an environment
// via `catalyze rmuser`, when contacting Catalyze Support, etc.
func WhoAmI(settings *models.Settings) {
	helpers.SignIn(settings)
	fmt.Printf("user ID = %s\n", settings.UsersID)
}

// RmUser revokes a user's access to the associated environment. The ID of the
// user is required which can be found via `catalyze whoami`.
func RmUser(usersID string, settings *models.Settings) {
	helpers.SignIn(settings)
	helpers.RemoveUserFromEnvironment(usersID, settings)
	fmt.Println("Removed.")
}

// Associate an environment so that commands can be run against it. This command
// no longer adds a git remote. See commands.AddRemote().
func Associate(envLabel string, serviceLabel string, alias string, remote string, defaultEnv bool, settings *models.Settings) {
	if _, err := os.Stat(".git"); os.IsNotExist(err) {
		fmt.Println("Not git repo found in the current directory")
		os.Exit(1)
	}
	helpers.SignIn(settings)
	envs := helpers.ListEnvironments("pod", settings)
	for _, env := range *envs {
		if env.Data.Name == envLabel {
			if env.State == "defined" {
				fmt.Printf("Your environment is not yet provisioned. Please visit https://dashboard.catalyze.io/environments/update/%s to finish provisioning your environment\n", env.ID)
				return
			}
			// would be nice to have some sort of global filter() function
			var chosenService models.Service
			if serviceLabel != "" {
				labels := []string{}
				for _, service := range *env.Data.Services {
					if service.Type == "code" {
						labels = append(labels, service.Label)
						if service.Label == serviceLabel {
							chosenService = service
							break
						}
					}
				}
				if chosenService.Type == "" {
					fmt.Printf("No code service found with name '%s'. Code services found: %s\n", serviceLabel, strings.Join(labels, ", "))
					os.Exit(1)
				}
			} else {
				for _, service := range *env.Data.Services {
					if service.Type == "code" {
						chosenService = service
						break
					}
				}
				if chosenService.Type == "" {
					fmt.Printf("No code service found for \"%s\" environment (ID = %s)\n", envLabel, settings.EnvironmentID)
					os.Exit(1)
				}
			}
			for _, r := range helpers.ListGitRemote() {
				if r == remote {
					helpers.RemoveGitRemote(remote)
					break
				}
			}
			helpers.AddGitRemote(remote, chosenService.Source)
			fmt.Printf("\"%s\" remote added.\n", remote)
			dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
			if err != nil {
				panic(err)
			}
			name := alias
			if name == "" {
				name = envLabel
			}
			settings.Environments[name] = models.AssociatedEnv{
				EnvironmentID: env.ID,
				ServiceID:     chosenService.ID,
				Directory:     dir,
				Name:          envLabel,
			}
			if defaultEnv {
				settings.Default = name
			}
			config.DropBreadcrumb(name, settings)
			config.SaveSettings(settings)
			if len(settings.Environments) > 1 && settings.Default == "" {
				fmt.Printf("You now have %d environments associated. Consider running \"catalyze default ENV_NAME\" to set a default\n", len(settings.Environments))
			}
			return
		}
	}
	fmt.Printf("No environment with label \"%s\" found\n", envLabel)
	os.Exit(1)
}

// Logs is a way to stream logs from Kibana to your local terminal. This is
// useful because Kibana is hard to look at because it splits every single
// log statement into a separate block that spans multiple lines so it's
// not very cohesive. This is intended to be similar to the `heroku logs`
// command.
func Logs(queryString string, tail bool, hours int, minutes int, seconds int, settings *models.Settings) {
	if settings.Username == "" || settings.Password == "" {
		// sometimes this will be filled in from env variables
		// if it is, just use that and don't prompt them
		settings.Username = ""
		settings.Password = ""
		fmt.Println("Please enter your logging dashboard credentials")
	}
	// if we remove the session token, the CLI will prompt for the
	// username/password normally. It will also set the username/password
	// on the settings object.
	sessionToken := settings.SessionToken
	settings.SessionToken = ""

	helpers.SignIn(settings)

	env := helpers.RetrieveEnvironment("pod", settings)
	var domain = env.Data.DNSName
	if domain == "" {
		domain = fmt.Sprintf("%s.catalyze.io", env.Data.Namespace)
	}

	urlString := fmt.Sprintf("https://%s/__es", domain)

	offset := time.Duration(hours)*time.Hour + time.Duration(minutes)*time.Minute + time.Duration(seconds)*time.Second
	timestamp := time.Now().In(time.UTC).Add(-1 * offset)

	from := 0
	query := &models.LogQuery{
		Fields: []string{"@timestamp", "message"},
		Query: &models.Query{
			Wildcard: map[string]string{
				"message": queryString,
			},
		},
		Filter: &models.FilterRange{
			Range: &models.RangeTimestamp{
				Timestamp: map[string]string{
					"gt": fmt.Sprintf("%04d-%02d-%02dT%02d:%02d:%02dZ", timestamp.Year(), timestamp.Month(), timestamp.Day(), timestamp.Hour(), timestamp.Minute(), timestamp.Second()),
				},
			},
		},
		Sort: &models.LogSort{
			Timestamp: map[string]string{
				"order": "asc",
			},
			Message: map[string]string{
				"order": "asc",
			},
		},
		From: from,
		Size: 50,
	}

	var tr = &http.Transport{
		TLSClientConfig: &tls.Config{
			MinVersion: tls.VersionTLS12,
		},
	}

	client := &http.Client{
		Transport: tr,
	}

	settings.SessionToken = sessionToken
	config.SaveSettings(settings)

	fmt.Println("        @timestamp       -        message")
	for {
		query.From = from
		b, err := json.Marshal(*query)
		if err != nil {
			panic(err)
		}
		reader := bytes.NewReader(b)

		req, _ := http.NewRequest("GET", fmt.Sprintf("%s/_search", urlString), reader)
		req.SetBasicAuth(settings.Username, settings.Password)

		resp, err := client.Do(req)
		if err != nil {
			fmt.Println(err.Error())
		}
		respBody, _ := ioutil.ReadAll(resp.Body)
		resp.Body.Close()
		if resp.StatusCode < 200 || resp.StatusCode >= 300 {
			fmt.Println(fmt.Errorf("%d %s", resp.StatusCode, string(respBody)).Error())
			os.Exit(1)
		}
		var logs models.Logs
		json.Unmarshal(respBody, &logs)
		for _, lh := range *logs.Hits.Hits {
			fmt.Printf("%s - %s\n", lh.Fields["@timestamp"][0], lh.Fields["message"][0])
		}
		if !tail {
//.........这里部分代码省略.........

// Rake executes a rake task. This is only applicable for ruby-based
// applications.
func Rake(taskName string, settings *models.Settings) {
	helpers.SignIn(settings)
	fmt.Printf("Executing Rake task: %s\n", taskName)
	helpers.InitiateRakeTask(taskName, settings)
	fmt.Println("Rake task output viewable in your logging server")
}