init push

cmd/worker/mail_worker.go

@@ -0,0 +1,99 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"os/signal"
+	"syscall"
+
+	queueapp "wucher/internal/app/queueing"
+	appworker "wucher/internal/app/worker"
+	"wucher/internal/config"
+	"wucher/internal/shared/pkg/logger"
+	mysqlrepo "wucher/internal/repository/mysql"
+	"wucher/internal/resilience"
+	"wucher/internal/service"
+)
+
+func runMailWorker(appCfg config.AppConfig) error {
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	appLogger := logger.New(appCfg.Logging).With("component", "worker", "job", "email")
+	resCfg := appCfg.Resilience
+	emailCfg := appCfg.Email
+
+	queueCfg := appCfg.Queue
+	sqsCfg := appCfg.SQS
+	db, err := mysqlrepo.Connect(appCfg.MySQL)
+	if err != nil {
+		return err
+	}
+	authRepo := mysqlrepo.NewAuthRepository(db)
+
+	sqsBreaker := resilience.NewExecutor("sqs", resCfg.SQS, appLogger, resilience.ClassifySQSError)
+	consumer, serializer, err := queueapp.NewEmailConsumer(ctx, queueCfg, sqsCfg, sqsBreaker)
+	if err != nil {
+		return err
+	}
+	idempotency := queueapp.NewIdempotencyStore(db, queueCfg)
+	var dispatcher *appworker.OutboxDispatcher
+	if queueCfg.OutboxEnabled {
+		rawProducer, err := queueapp.NewQueueProducer(ctx, sqsCfg, sqsBreaker, "outbox_dispatcher")
+		if err != nil {
+			return err
+		}
+		dispatcher = appworker.NewOutboxDispatcher(queueCfg, authRepo, rawProducer, appLogger)
+	}
+
+	emailSender, err := buildEmailSender(ctx, emailCfg, appCfg.SES, resCfg, appLogger)
+	if err != nil {
+		return err
+	}
+	handler := service.NewEmailDeliveryHandler(emailSender, appLogger)
+	runner := appworker.NewRunner(queueCfg, consumer, serializer, handler, idempotency, dispatcher, appLogger)
+
+	appLogger.Info("worker started",
+		"backend", "sqs",
+		"email_provider", emailCfg.Provider,
+		"monitor_addr", queueCfg.WorkerMonitorAddr,
+		"outbox_enabled", queueCfg.OutboxEnabled,
+	)
+	if err := runner.Start(ctx); err != nil {
+		return err
+	}
+	appLogger.Info("worker stopped")
+	return nil
+}
+
+func buildEmailSender(
+	ctx context.Context,
+	emailCfg config.EmailDeliveryConfig,
+	sesCfg config.SESConfig,
+	resCfg config.ResilienceConfig,
+	appLogger *slog.Logger,
+) (service.EmailSender, error) {
+	switch emailCfg.Provider {
+	case "", "ses":
+		sesBreaker := resilience.NewExecutor("ses", resCfg.SES, appLogger, resilience.ClassifySESError)
+		sender, err := service.NewSESSender(ctx, sesCfg)
+		if err != nil {
+			return nil, err
+		}
+		sender = sender.WithExecutor(sesBreaker)
+		sender = sender.WithMetricsComponent("email_worker")
+		if !sender.Configured() {
+			return nil, errors.New("ses is not configured")
+		}
+		return sender, nil
+	case "mock":
+		sender := service.NewMockEmailSender(emailCfg.MockDir)
+		if !sender.Configured() {
+			return nil, errors.New("mock email sender is not configured")
+		}
+		return sender, nil
+	default:
+		return nil, errors.New("unsupported email provider: " + emailCfg.Provider)
+	}
+}