841b1d780c
- Backend: Email producer (LavinMQ), EmailService interface - Backend: CRUD API for email_templates and email_settings - Backend: avatar_url field in users table + UpdateMyProfile support - Backend: StorageService for pre-signed URLs - NestJS: Email consumer with Nodemailer and Handlebars - Frontend: Email Templates admin pages (list/edit) - Frontend: Updated profileApi.uploadAvatar with pre-signed URL flow - Frontend: New /post-job public page (company registration + job creation wizard) - Migrations: 027_create_email_system.sql, 028_add_avatar_url_to_users.sql
85 lines
1.9 KiB
Go
85 lines
1.9 KiB
Go
package services
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import (
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"context"
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"fmt"
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"sync"
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firebase "firebase.google.com/go/v4"
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"firebase.google.com/go/v4/messaging"
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"google.golang.org/api/option"
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)
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type FCMService struct {
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credentials *CredentialsService
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client *messaging.Client
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currentKey string
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mu sync.RWMutex
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}
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func NewFCMService(c *CredentialsService) *FCMService {
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return &FCMService{credentials: c}
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}
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func (s *FCMService) getClient(ctx context.Context) (*messaging.Client, error) {
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s.mu.Lock()
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defer s.mu.Unlock()
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// Get Service Account JSON from DB
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jsonKey, err := s.credentials.GetDecryptedKey(ctx, "fcm_service_account")
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if err != nil {
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return nil, fmt.Errorf("fcm credentials missing: %w", err)
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}
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// If initialized and key hasn't changed, return cached client
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if s.client != nil && jsonKey == s.currentKey {
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return s.client, nil
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}
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// Initialize new client
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opt := option.WithCredentialsJSON([]byte(jsonKey))
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app, err := firebase.NewApp(ctx, nil, opt)
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if err != nil {
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return nil, fmt.Errorf("error initializing firebase app: %w", err)
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}
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client, err := app.Messaging(ctx)
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if err != nil {
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return nil, fmt.Errorf("error getting messaging client: %w", err)
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}
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s.client = client
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s.currentKey = jsonKey
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return client, nil
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}
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// SendPush sends a push notification to a specific token
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func (s *FCMService) SendPush(ctx context.Context, token, title, body string, data map[string]string) error {
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client, err := s.getClient(ctx)
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if err != nil {
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return err
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}
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msg := &messaging.Message{
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Token: token,
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Notification: &messaging.Notification{
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Title: title,
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Body: body,
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},
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Data: data,
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}
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_, err = client.Send(ctx, msg)
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return err
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}
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// SubscribeToTopic subscribes a token to a topic
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func (s *FCMService) SubscribeToTopic(ctx context.Context, tokens []string, topic string) error {
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client, err := s.getClient(ctx)
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if err != nil {
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return err
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}
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_, err = client.SubscribeToTopic(ctx, tokens, topic)
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return err
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}
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