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Copy pathphone_notification_service.go
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package services
import (
"context"
"errors"
"fmt"
"time"
"github.com/NdoleStudio/httpsms/pkg/events"
cloudevents "github.com/cloudevents/sdk-go/v2"
"firebase.google.com/go/messaging"
"github.com/NdoleStudio/httpsms/pkg/entities"
"github.com/NdoleStudio/httpsms/pkg/repositories"
"github.com/NdoleStudio/httpsms/pkg/telemetry"
"github.com/google/uuid"
"github.com/palantir/stacktrace"
)
// PhoneNotificationService sends out notifications to mobile phones
type PhoneNotificationService struct {
service
logger telemetry.Logger
tracer telemetry.Tracer
phoneNotificationRepository repositories.PhoneNotificationRepository
phoneRepository repositories.PhoneRepository
messagingClient *messaging.Client
eventDispatcher *EventDispatcher
}
// NewNotificationService creates a new PhoneNotificationService
func NewNotificationService(
logger telemetry.Logger,
tracer telemetry.Tracer,
messagingClient *messaging.Client,
phoneRepository repositories.PhoneRepository,
phoneNotificationRepository repositories.PhoneNotificationRepository,
dispatcher *EventDispatcher,
) (s *PhoneNotificationService) {
return &PhoneNotificationService{
logger: logger.WithService(fmt.Sprintf("%T", s)),
tracer: tracer,
messagingClient: messagingClient,
phoneNotificationRepository: phoneNotificationRepository,
phoneRepository: phoneRepository,
eventDispatcher: dispatcher,
}
}
// DeleteAllForUser deletes all entities.PhoneNotification for an entities.UserID.
func (service *PhoneNotificationService) DeleteAllForUser(ctx context.Context, userID entities.UserID) error {
ctx, span, ctxLogger := service.tracer.StartWithLogger(ctx, service.logger)
defer span.End()
if err := service.phoneNotificationRepository.DeleteAllForUser(ctx, userID); err != nil {
msg := fmt.Sprintf("could not delete all [entities.PhoneNotification] for user with ID [%s]", userID)
return service.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
}
ctxLogger.Info(fmt.Sprintf("deleted all [entities.PhoneNotification] for user with ID [%s]", userID))
return nil
}
// SendHeartbeatFCM sends a heartbeat message so the phone can request a heartbeat
func (service *PhoneNotificationService) SendHeartbeatFCM(ctx context.Context, payload *events.PhoneHeartbeatMissedPayload) error {
ctx, span, ctxLogger := service.tracer.StartWithLogger(ctx, service.logger)
defer span.End()
phone, err := service.phoneRepository.LoadByID(ctx, payload.UserID, payload.PhoneID)
if err != nil {
msg := fmt.Sprintf("cannot load phone with userID [%s] and phoneID [%s]", payload.UserID, payload.PhoneID)
return service.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
}
if phone.FcmToken == nil {
msg := fmt.Sprintf("phone with id [%s] has no FCM token", phone.ID)
return service.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
}
result, err := service.messagingClient.Send(ctx, &messaging.Message{
Data: map[string]string{
"KEY_HEARTBEAT_ID": time.Now().UTC().Format(time.RFC3339),
},
Android: &messaging.AndroidConfig{
Priority: "high",
},
Token: *phone.FcmToken,
})
if err != nil {
msg := fmt.Sprintf("cannot send heartbeat FCM to phone with id [%s] for user [%s]", phone.ID, phone.UserID)
ctxLogger.Warn(stacktrace.Propagate(err, msg))
return nil
}
ctxLogger.Info(fmt.Sprintf("successfully sent heartbeat FCM [%s] to phone with ID [%s] for user [%s] and monitor [%s]", result, payload.PhoneID, payload.UserID, payload.MonitorID))
return nil
}
// PhoneNotificationSendParams are parameters for sending a notification
type PhoneNotificationSendParams struct {
UserID entities.UserID
PhoneID uuid.UUID
PhoneNotificationID uuid.UUID
Source string
ScheduledAt time.Time
MessageID uuid.UUID
}
// Send sends a message when a message is sent
func (service *PhoneNotificationService) Send(ctx context.Context, params *PhoneNotificationSendParams) error {
ctx, span, ctxLogger := service.tracer.StartWithLogger(ctx, service.logger)
defer span.End()
phone, err := service.phoneRepository.LoadByID(ctx, params.UserID, params.PhoneID)
if err != nil {
msg := fmt.Sprintf("cannot load phone with userID [%s] and phoneID [%s]", params.UserID, params.PhoneID)
return service.handleNotificationFailed(ctx, errors.New(msg), params)
}
if phone.FcmToken == nil {
msg := fmt.Sprintf("phone with id [%s] has no FCM token", phone.ID)
return service.handleNotificationFailed(ctx, errors.New(msg), params)
}
ttl := phone.MessageExpirationDuration()
result, err := service.messagingClient.Send(ctx, &messaging.Message{
Data: map[string]string{
"KEY_MESSAGE_ID": params.MessageID.String(),
},
Android: &messaging.AndroidConfig{
Priority: "normal",
TTL: &ttl,
},
Token: *phone.FcmToken,
})
if err != nil {
ctxLogger.Warn(stacktrace.Propagate(err, fmt.Sprintf("cannot send FCM to phone with ID [%s] for user with ID [%s] and message [%s]", phone.ID, phone.UserID, params.MessageID)))
msg := fmt.Sprintf("cannot send notification for to your phone [%s]. Reinstall the httpSMS app on your Android phone.", phone.PhoneNumber)
return service.handleNotificationFailed(ctx, errors.New(msg), params)
}
return service.handleNotificationSent(ctx, phone, result, params)
}
// PhoneNotificationScheduleParams are parameters for sending a notification
type PhoneNotificationScheduleParams struct {
UserID entities.UserID
Owner string
Source string
Encrypted bool
Contact string
Content string
SIM entities.SIM
MessageID uuid.UUID
}
// Schedule a notification to be sent to a phone
func (service *PhoneNotificationService) Schedule(ctx context.Context, params *PhoneNotificationScheduleParams) error {
ctx, span := service.tracer.Start(ctx)
defer span.End()
ctxLogger := service.tracer.CtxLogger(service.logger, span)
phone, err := service.phoneRepository.Load(ctx, params.UserID, params.Owner)
if err != nil {
msg := fmt.Sprintf("cannot load phone with userID [%s] and phone [%s]", params.UserID, params.Owner)
return service.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
}
notification := &entities.PhoneNotification{
ID: uuid.New(),
MessageID: params.MessageID,
UserID: params.UserID,
PhoneID: phone.ID,
Status: entities.PhoneNotificationStatusPending,
ScheduledAt: time.Now().UTC(),
CreatedAt: time.Now().UTC(),
UpdatedAt: time.Now().UTC(),
}
if err = service.phoneNotificationRepository.Schedule(ctx, phone.MessagesPerMinute, notification); err != nil {
msg := fmt.Sprintf("cannot schedule notification for message [%s] to phone [%s]", params.MessageID, phone.ID)
return service.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
}
if err = service.dispatchMessageNotificationScheduled(ctx, params, notification); err != nil {
ctxLogger.Error(err)
}
if err = service.dispatchMessageNotificationSend(ctx, params.Source, notification); err != nil {
return service.tracer.WrapErrorSpan(span, err)
}
ctxLogger.Info(fmt.Sprintf("message with id [%s] notification scheduled for [%s] with id [%s]", params.MessageID, notification.ScheduledAt, notification.ID))
return nil
}
func (service *PhoneNotificationService) dispatchMessageNotificationSend(ctx context.Context, source string, notification *entities.PhoneNotification) error {
event, err := service.createMessageNotificationSendEvent(source, &events.MessageNotificationSendPayload{
MessageID: notification.MessageID,
UserID: notification.UserID,
PhoneID: notification.PhoneID,
ScheduledAt: notification.ScheduledAt,
NotificationID: notification.ID,
})
if err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot create [%s] event for notification [%s]", events.EventTypeMessageNotificationSend, notification.ID))
}
if _, err = service.eventDispatcher.DispatchWithTimeout(ctx, event, notification.ScheduledAt.Sub(time.Now())); err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot dispatch event [%s] for notification [%s]", event.Type(), notification.ID))
}
return nil
}
func (service *PhoneNotificationService) dispatchMessageNotificationScheduled(ctx context.Context, params *PhoneNotificationScheduleParams, notification *entities.PhoneNotification) error {
event, err := service.createMessageNotificationScheduledEvent(params.Source, &events.MessageNotificationScheduledPayload{
MessageID: notification.MessageID,
Owner: params.Owner,
Contact: params.Contact,
Encrypted: params.Encrypted,
Content: params.Content,
SIM: params.SIM,
UserID: notification.UserID,
PhoneID: notification.PhoneID,
ScheduledAt: notification.ScheduledAt,
NotificationID: notification.ID,
})
if err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot create [%s] event for notification [%s]", events.EventTypeMessageNotificationScheduled, notification.ID))
}
if err = service.eventDispatcher.Dispatch(ctx, event); err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot dispatch event [%s] for notification [%s]", event.Type(), notification.ID))
}
return nil
}
func (service *PhoneNotificationService) handleNotificationFailed(ctx context.Context, err error, params *PhoneNotificationSendParams) error {
ctx, span := service.tracer.Start(ctx)
defer span.End()
ctxLogger := service.tracer.CtxLogger(service.logger, span)
msg := fmt.Sprintf("cannot send notification for message [%s] to phone [%s]", params.MessageID, params.PhoneNotificationID)
ctxLogger.Warn(stacktrace.Propagate(err, msg))
event, err := service.createMessageNotificationFailedEvent(params.Source, err.Error(), params)
if err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot create [%s] event for notification [%s]", events.EventTypeMessageNotificationFailed, params.PhoneNotificationID))
}
if err = service.eventDispatcher.Dispatch(ctx, event); err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot dispatch event [%s] for notification [%s]", event.Type(), params.PhoneNotificationID))
}
service.updateStatus(ctx, params.PhoneNotificationID, entities.PhoneNotificationStatusFailed)
return nil
}
func (service *PhoneNotificationService) handleNotificationSent(ctx context.Context, phone *entities.Phone, result string, params *PhoneNotificationSendParams) error {
ctx, span := service.tracer.Start(ctx)
defer span.End()
ctxLogger := service.tracer.CtxLogger(service.logger, span)
ctxLogger.Info(fmt.Sprintf("sent notification [%s] for message [%s] to phone [%s]", result, params.MessageID, params.PhoneID))
event, err := service.createMessageNotificationSentEvent(params.Source, phone, result, params)
if err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot create [%s] event for notification [%s]", events.EventTypeMessageNotificationSent, params.PhoneNotificationID))
}
if err = service.eventDispatcher.Dispatch(ctx, event); err != nil {
return stacktrace.Propagate(err, fmt.Sprintf("cannot dispatch event [%s] for notification [%s]", event.Type(), params.PhoneNotificationID))
}
service.updateStatus(ctx, params.PhoneNotificationID, entities.PhoneNotificationStatusSent)
return nil
}
func (service *PhoneNotificationService) createMessageNotificationScheduledEvent(source string, payload *events.MessageNotificationScheduledPayload) (cloudevents.Event, error) {
return service.createEvent(events.EventTypeMessageNotificationScheduled, source, payload)
}
func (service *PhoneNotificationService) createMessageNotificationSendEvent(source string, payload *events.MessageNotificationSendPayload) (cloudevents.Event, error) {
return service.createEvent(events.EventTypeMessageNotificationSend, source, payload)
}
func (service *PhoneNotificationService) createMessageNotificationSentEvent(source string, phone *entities.Phone, fcmMessageID string, params *PhoneNotificationSendParams) (cloudevents.Event, error) {
event := cloudevents.NewEvent()
event.SetSource(source)
event.SetType(events.EventTypeMessageNotificationSent)
event.SetTime(time.Now().UTC())
event.SetID(uuid.New().String())
payload := events.MessageNotificationSentPayload{
MessageID: params.MessageID,
UserID: params.UserID,
PhoneID: params.PhoneID,
ScheduledAt: params.ScheduledAt,
MessageExpirationDuration: phone.MessageExpirationDuration(),
FcmMessageID: fcmMessageID,
NotificationSentAt: time.Now().UTC(),
NotificationID: params.PhoneNotificationID,
}
if err := event.SetData(cloudevents.ApplicationJSON, payload); err != nil {
msg := fmt.Sprintf("cannot encode %T [%#+v] as JSON", payload, payload)
return event, stacktrace.Propagate(err, msg)
}
return event, nil
}
func (service *PhoneNotificationService) createMessageNotificationFailedEvent(source string, errorMessage string, params *PhoneNotificationSendParams) (cloudevents.Event, error) {
event := cloudevents.NewEvent()
event.SetSource(source)
event.SetType(events.EventTypeMessageNotificationFailed)
event.SetTime(time.Now().UTC())
event.SetID(uuid.New().String())
payload := events.MessageNotificationFailedPayload{
MessageID: params.MessageID,
UserID: params.UserID,
PhoneID: params.PhoneID,
ErrorMessage: errorMessage,
NotificationFailedAt: time.Now().UTC(),
NotificationID: params.PhoneNotificationID,
}
if err := event.SetData(cloudevents.ApplicationJSON, payload); err != nil {
msg := fmt.Sprintf("cannot encode %T [%#+v] as JSON", payload, payload)
return event, stacktrace.Propagate(err, msg)
}
return event, nil
}
func (service *PhoneNotificationService) updateStatus(ctx context.Context, notificationID uuid.UUID, status entities.PhoneNotificationStatus) {
ctx, span := service.tracer.Start(ctx)
defer span.End()
ctxLogger := service.tracer.CtxLogger(service.logger, span)
err := service.phoneNotificationRepository.UpdateStatus(ctx, notificationID, status)
if err != nil {
msg := fmt.Sprintf("cannot update status of notificaiton with id [%s] to [%s]", notificationID, status)
ctxLogger.Error(stacktrace.Propagate(err, msg))
}
ctxLogger.Info(fmt.Sprintf("updated status of notificaiton with id [%s] to [%s]", notificationID, status))
}