notifiers

var NewGmailNotifier = func(config Config) (Notifier, error) {

	if config.Type != "gmail" {
		return nil, errors.New("gmail: invalid config type")
	}

	if config.Config["user"] == "" {
		return nil, errors.New("gmail: invalid user")
	}

	if config.Config["pass"] == "" {
		return nil, errors.New("gmail: invalid pass")
	}

	if config.Config["notification_addresses"] == "" {
		return nil, errors.New("gmail: invalid notification addresses")
	}

	return Notifier(Gmail{
		name:                  config.Name,
		user:                  config.Config["user"],
		pass:                  config.Config["pass"],
		notificationAddresses: strings.Split(config.Config["notification_addresses"], ","),
	}), nil
}

var NewSlackNotifier = func(config Config) (Notifier, error) {

	if config.Type != "slack" {
		return nil, errors.New("slack: invalid config type")
	}

	if config.Config["webhook_url"] == "" {
		return nil, errors.New("slack: invalid webhook_url")
	}

	return Notifier(SlackWebhook{
		name:      config.Name,
		url:       config.Config["webhook_url"],
		channel:   config.Config["channel"],
		username:  config.Config["username"],
		iconEmoji: config.Config["icon_emoji"],
	}), nil
}

var NewStandardError = func(config Config) (Notifier, error) {
	return Notifier(StandardError{
		name: "stderr",
		log:  log.New(os.Stderr, "", log.Ldate|log.Ltime),
	}), nil
}

var NewTwilioNotifier = func(config Config) (Notifier, error) {

	if config.Type != "twilio" {
		return nil, errors.New("twilio: invalid config type")
	}

	if config.Config["account_sid"] == "" {
		return nil, errors.New("twilio: invalid account_sid")
	}

	if config.Config["auth_token"] == "" {
		return nil, errors.New("twilio: invalid auth_token")
	}

	if config.Config["twilio_number"] == "" {
		return nil, errors.New("twilio: invalid twilio_number")
	}

	if config.Config["notification_numbers"] == "" {
		return nil, errors.New("twilio: invalid notification_numbers")
	}

	return Notifier(Twilio{
		accountSid:   config.Config["account_sid"],
		authToken:    config.Config["auth_token"],
		phoneNumbers: strings.Split(config.Config["notification_numbers"], ","),
		twilioNumber: config.Config["twilio_number"],
	}), nil
}