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novu.go
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novu.go
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package notifications
import (
"context"
"errors"
"fmt"
"strings"
"github.com/Boostport/mjml-go"
novu "github.com/novuhq/go-novu/lib"
"github.com/openline-ai/openline-customer-os/packages/server/customer-os-common-module/aws_client"
"github.com/openline-ai/openline-customer-os/packages/server/customer-os-common-module/logger"
"github.com/openline-ai/openline-customer-os/packages/server/customer-os-common-module/tracing"
"github.com/opentracing/opentracing-go"
)
type NovuProvider struct {
NovuClient *novu.APIClient
log logger.Logger
s3Client aws_client.S3ClientI
}
func newNovuProvider(log logger.Logger, apiKey string, s3 aws_client.S3ClientI) *NovuProvider {
return &NovuProvider{
NovuClient: novu.NewAPIClient(apiKey, &novu.Config{}),
log: log,
s3Client: s3,
}
}
func (np *NovuProvider) SendNotification(ctx context.Context, notification *NovuNotification, span opentracing.Span) error {
payload := notification.Payload
u := notification.To
workflowId := notification.WorkflowId
rawEmailTemplate, err := np.LoadEmailBody(workflowId)
if err != nil {
tracing.TraceErr(span, err)
return err
}
if rawEmailTemplate != "" {
htmlEmailTemplate, err := np.FillTemplate(workflowId, rawEmailTemplate, notification.TemplateData)
if err != nil {
tracing.TraceErr(span, err)
return err
}
payload["html"] = htmlEmailTemplate
}
to := map[string]interface{}{
"lastName": u.LastName,
"firstName": u.FirstName,
"subscriberId": u.SubscriberID,
"email": u.Email,
}
data := novu.ITriggerPayloadOptions{To: to, Payload: payload}
if containsKey(payload, "overrides") {
overrides := payload["overrides"].(map[string]interface{})
if len(overrides) > 0 {
if containsKey(overrides, "email") {
data.Overrides = overrides
}
}
}
_, err = np.NovuClient.EventApi.Trigger(ctx, workflowId, data)
if err != nil {
np.log.Errorf("(NotificationsSubscriber.NovuProvider.SendNotification) error: %s", err.Error())
return err
}
return nil
}
func (np *NovuProvider) LoadEmailBody(workflowId string) (string, error) {
var fileName string
switch workflowId {
case WorkflowIdOrgOwnerUpdateEmail:
fileName = "ownership.single.mjml"
case WorkflowFailedWebhook:
fileName = "webhook.failed.mjml"
case WorkflowReminderNotificationEmail:
fileName = "reminder.mjml"
}
if fileName == "" {
return "", nil
}
np.s3Client.ChangeRegion("eu-west-1")
return np.s3Client.Download("openline-production-mjml-templates", fileName)
}
func (np *NovuProvider) FillTemplate(workflowId, template string, replace map[string]string) (string, error) {
requiredVars := REQUIRED_TEMPLATE_VALUES[workflowId]
err := checkRequiredTemplateVars(replace, requiredVars)
if err != nil {
return "", err
}
mjmlf := template
for k, v := range replace {
mjmlf = strings.Replace(mjmlf, k, v, -1)
}
html, err := mjml.ToHTML(context.Background(), mjmlf)
var mjmlError mjml.Error
if errors.As(err, &mjmlError) {
return "", fmt.Errorf("(NovuProvider.FillTemplate) error: %s", mjmlError.Message)
}
return html, err
}
func checkRequiredTemplateVars(replace map[string]string, requiredVars []string) error {
for _, rv := range requiredVars {
if _, ok := replace[rv]; !ok {
return fmt.Errorf("(NovuProvider.FillTemplate) error: missing %s", rv)
}
}
return nil
}
func containsKey[M ~map[K]V, K comparable, V any](m M, k K) bool {
_, ok := m[k]
return ok
}