refactor: unit testable units and cleaner dep injection

go/cmd/emailnotifierjob/main.go

@@ -11,7 +11,6 @@ import (
 	"cloud.google.com/go/firestore"
 	pbaero "github.com/flowy-live/llink/genproto/aero"
 	pbpusher "github.com/flowy-live/llink/genproto/llink/pusher"
-	"github.com/flowy-live/llink/internal/billing"
 	"github.com/flowy-live/llink/internal/db"
 	"github.com/flowy-live/llink/internal/human"
 	"github.com/flowy-live/llink/internal/network"
@@ -68,7 +67,7 @@ func main() {
 
 	// Initialize services
 	humanSvc := human.NewService(db.Pool())
-	networkSvc := network.NewService(db.Pool(), aeroSvc, billing.Noop(), nil)
+	networkSvc := network.NewReader(db.Pool())
 
 	slog.Info("starting email notification cycle")
 	if err := runNotificationCycle(ctx, firestoreClient, aeroSvc, pusherSvc, humanSvc, networkSvc); err != nil {
@@ -84,12 +83,12 @@ func runNotificationCycle(
 	aeroSvc pbaero.PrimaryClient,
 	pusherSvc pbpusher.PusherServiceClient,
 	humanSvc human.Service,
-	networkSvc network.Service,
+	networkReader network.Reader,
 ) error {
 	now := time.Now()
 
 	// Load all networks
-	networks, err := networkSvc.ListAll(ctx)
+	networks, err := networkReader.ListAll(ctx)
 	if err != nil {
 		return fmt.Errorf("listing networks: %w", err)
 	}