lunemec/nanny

package notifier

import (
    "github.com/pkg/errors"
    "github.com/sfreiberg/gotwilio"
)

type twilio struct {
    from string
    to   string

    appSid string
    t      *gotwilio.Twilio
}

// NewTwilio creates twilio sms sending notifier.
func NewTwilio(accountSid, authToken, appSid, from, to string) Notifier {
    return &twilio{
        t:    gotwilio.NewTwilioClient(accountSid, authToken),
        from: from,
        to:   to,
    }
}

// Notify implements Notifier interface for twilio.
func (n *twilio) Notify(msg Message) error {
    resp, exc, err := n.t.SendSMS(n.from, n.to, msg.Format(), "", n.appSid)
    if err != nil {
        return errors.Wrap(err, "unable to send SMS via twilio")
    }
    if exc != nil {
        return errors.Errorf("error while sending SMS via twilio: %+v", exc)
    }
    // I know it does not make sense that resp would be nil, but since the type
    // is *gotwilio.SmsResponse we should check.
    if resp == nil {
        return errors.Errorf("*gotwilio.SmsResponse is nil, WUT?")
    }
    if resp.Status == "undelivered" || resp.Status == "failed" {
        return errors.Errorf("unable to send SMS via twilio: %+v", resp)
    }
    return nil
}

// NotifyAllClear implements Notifier interface for twilio.
func (n *twilio) NotifyAllClear(msg Message) error {
    resp, exc, err := n.t.SendSMS(n.from, n.to, msg.FormatAllClear(), "", n.appSid)
    if err != nil {
        return errors.Wrap(err, "unable to send SMS via twilio")
    }
    if exc != nil {
        return errors.Errorf("error while sending SMS via twilio: %+v", exc)
    }
    // I know it does not make sense that resp would be nil, but since the type
    // is *gotwilio.SmsResponse we should check.
    if resp == nil {
        return errors.Errorf("*gotwilio.SmsResponse is nil, WUT?")
    }
    if resp.Status == "undelivered" || resp.Status == "failed" {
        return errors.Errorf("unable to send SMS via twilio: %+v", resp)
    }
    return nil
}

func (n *twilio) String() string {
    return "twilio"
}