func CmdDownload(databaseName, backupID, filePath string, force bool, id IDb, ip prompts.IPrompts, is services.IServices) error {
	err := ip.PHI()
	if err != nil {
		return err
	}
	if !force {
		if _, err := os.Stat(filePath); err == nil {
			return fmt.Errorf("File already exists at path '%s'. Specify `--force` to overwrite", filePath)
		}
	} else {
		os.Remove(filePath)
	}
	service, err := is.RetrieveByLabel(databaseName)
	if err != nil {
		return err
	}
	if service == nil {
		return fmt.Errorf("Could not find a service with the label \"%s\". You can list services with the \"catalyze services\" command.", databaseName)
	}
	err = id.Download(backupID, filePath, service)
	if err != nil {
		return err
	}
	logrus.Printf("%s backup downloaded successfully to %s", databaseName, filePath)
	logrus.Printf("You can also view logs for this backup with the \"catalyze db logs %s %s\" command", databaseName, backupID)
	return nil
}

func CmdRm(svcName, target string, iw IWorker, is services.IServices, ip prompts.IPrompts, ij jobs.IJobs) error {
	service, err := is.RetrieveByLabel(svcName)
	if err != nil {
		return err
	}
	if service == nil {
		return fmt.Errorf("Could not find a service with the label \"%s\". You can list services with the \"catalyze services list\" command.", svcName)
	}
	err = ip.YesNo(fmt.Sprintf("Removing the worker target %s for service %s will automatically stop all existing worker jobs with that target, would you like to proceed? (y/n) ", target, svcName))
	if err != nil {
		return err
	}
	jobs, err := ij.RetrieveByTarget(service.ID, target, 1, 1000)
	if err != nil {
		return err
	}
	for _, j := range *jobs {
		err = ij.Delete(j.ID, service.ID)
		if err != nil {
			return err
		}
	}
	workers, err := iw.Retrieve(service.ID)
	if err != nil {
		return err
	}
	delete(workers.Workers, target)
	err = iw.Update(service.ID, workers)
	if err != nil {
		return err
	}
	logrus.Printf("Successfully removed all workers with target %s for service %s", target, svcName)
	return nil
}

func CmdExport(databaseName, filePath string, force bool, id IDb, ip prompts.IPrompts, is services.IServices, ij jobs.IJobs) error {
	err := ip.PHI()
	if err != nil {
		return err
	}
	if !force {
		if _, err := os.Stat(filePath); err == nil {
			return fmt.Errorf("File already exists at path '%s'. Specify `--force` to overwrite", filePath)
		}
	} else {
		os.Remove(filePath)
	}
	service, err := is.RetrieveByLabel(databaseName)
	if err != nil {
		return err
	}
	if service == nil {
		return fmt.Errorf("Could not find a service with the label \"%s\". You can list services with the \"catalyze services\" command.", databaseName)
	}
	job, err := id.Backup(service)
	if err != nil {
		return err
	}
	logrus.Printf("Export started (job ID = %s)", job.ID)
	// all because logrus treats print, println, and printf the same
	logrus.StandardLogger().Out.Write([]byte("Polling until export finishes."))
	status, err := ij.PollTillFinished(job.ID, service.ID)
	if err != nil {
		return err
	}
	job.Status = status
	logrus.Printf("\nEnded in status '%s'", job.Status)
	if job.Status != "finished" {
		id.DumpLogs("backup", job, service)
		return fmt.Errorf("Job finished with invalid status %s", job.Status)
	}

	err = id.Export(filePath, job, service)
	if err != nil {
		return err
	}
	err = id.DumpLogs("backup", job, service)
	if err != nil {
		return err
	}
	logrus.Printf("%s exported successfully to %s", service.Name, filePath)
	return nil
}

// CmdAccept creates an environment from a JSON env spec
func CmdAccept(inviteCode string, ii IInvites, ia auth.IAuth, ip prompts.IPrompts) error {
	user, err := ia.Signin()
	if err != nil {
		return err
	}
	err = ip.YesNo(fmt.Sprintf("Are you sure you want to accept this org invitation as %s? (y/n) ", user.Email))
	if err != nil {
		return err
	}

	orgID, err := ii.Accept(inviteCode)
	if err != nil {
		return err
	}
	logrus.Printf("Successfully joined organization (%s) as %s\n", orgID, user.Email)
	return nil
}

// CmdStop stops all instances of a given service. All workers and rake tasks will also be stopped
// if applicable.
func CmdStop(svcName string, is IServices, ij jobs.IJobs, ip prompts.IPrompts) error {
	err := ip.YesNo(fmt.Sprintf("Are you sure you want to stop %s? This will stop all instances of the service, all workers, all rake tasks, and all currently open consoles. (y/n) ", svcName))
	if err != nil {
		return err
	}
	service, err := is.RetrieveByLabel(svcName)
	if err != nil {
		return err
	}
	if service == nil {
		return fmt.Errorf("Could not find a service with the label \"%s\". You can list services with the \"catalyze services list\" command.", svcName)
	}
	if !service.Redeployable {
		return fmt.Errorf("This service cannot be stopped. Please contact Catalyze Support at [email protected] if you need the \"%s\" service stopped.", svcName)
	}

	page := 0
	pageSize := 100
	for {
		jobs, err := ij.List(service.ID, page, pageSize)
		if err != nil {
			return err
		}

		for _, job := range *jobs {
			if job.Status != "scheduled" && job.Status != "queued" && job.Status != "started" && job.Status != "running" && job.Status != "waiting" {
				logrus.Debugf("Skipping %s job (%s)", job.Status, job.ID)
				continue
			}
			logrus.Debugf("Deleting %s job (%s) on service %s", job.Type, job.ID, service.ID)
			err = ij.Delete(job.ID, service.ID)
			if err != nil {
				return err
			}
		}
		if len(*jobs) < pageSize {
			break
		}
		page++
	}

	logrus.Printf("Successfully stopped %s. Run \"catalyze redeploy %s\" to start this service again.", svcName, svcName)
	return nil
}

func CmdSend(email, envName, roleName string, ii IInvites, ip prompts.IPrompts) error {
	err := ip.YesNo(fmt.Sprintf("Are you sure you want to invite %s to your %s organization? (y/n) ", email, envName))
	if err != nil {
		return err
	}
	roles, err := ii.ListRoles()
	if err != nil {
		return err
	}
	role := 5
	for _, r := range *roles {
		if strings.ToLower(r.Name) == strings.ToLower(roleName) {
			role = r.ID
			break
		}
	}
	err = ii.Send(email, role)
	if err != nil {
		return err
	}
	logrus.Printf("%s has been invited!", email)
	return nil
}

func CmdScale(svcName, target, scaleString string, iw IWorker, is services.IServices, ip prompts.IPrompts, ij jobs.IJobs) error {
	service, err := is.RetrieveByLabel(svcName)
	if err != nil {
		return err
	}
	if service == nil {
		return fmt.Errorf("Could not find a service with the label \"%s\". You can list services with the \"catalyze services list\" command.", svcName)
	}
	scaleFunc, changeInScale, err := iw.ParseScale(scaleString)
	if err != nil {
		return err
	}
	workers, err := iw.Retrieve(service.ID)
	if err != nil {
		return err
	}
	scale := scaleFunc(workers.Workers[target], changeInScale)
	if existingScale, ok := workers.Workers[target]; !ok || scale > existingScale {
		logrus.Printf("Deploying %d new workers with target %s for service %s", scale-existingScale, target, svcName)
		workers.Workers[target] = scale
		err = iw.Update(service.ID, workers)
		if err != nil {
			return err
		}
		err = ij.DeployTarget(target, service.ID)
		if err != nil {
			return err
		}
		logrus.Printf("Successfully deployed %d new workers with target %s for service %s and set the scale to %d", scale-existingScale, target, svcName, scale)
	} else if scale < existingScale {
		err = ip.YesNo(fmt.Sprintf("Scaling down the %s target from %d to %d for service %s will automatically stop %d jobs, would you like to proceed? (y/n) ", target, existingScale, scale, svcName, existingScale-scale))
		if err != nil {
			return err
		}
		jobs, err := ij.RetrieveByTarget(service.ID, target, 1, 1000)
		if err != nil {
			return err
		}
		deleteLimit := existingScale - scale
		deleted := 0

		for _, j := range *jobs {
			err = ij.Delete(j.ID, service.ID)
			if err != nil {
				return err
			}
			deleted++
			if deleted == deleteLimit {
				break
			}
		}
		workers.Workers[target] = scale
		err = iw.Update(service.ID, workers)
		if err != nil {
			return err
		}
		logrus.Printf("Successfully removed %d existing workers with target %s for service %s and set the scale to %d", existingScale-scale, target, svcName, scale)
	} else {
		logrus.Printf("Worker target %s for service %s is already at a scale of %d", target, svcName, scale)
	}
	return nil
}