Updated subscriptions

backend/cmd/subscription-sweep/main.go

@@ -0,0 +1,68 @@
+// Package main runs a daily (cron-invoked) job: for paid tiers without an
+// active or trialling Stripe subscription, disable Firebase login and turn
+// off all alert rules until billing is restored via Stripe webhook / checkout.
+package main
+
+import (
+	"context"
+	"log"
+
+	"github.com/joho/godotenv"
+
+	"github.com/kjannette/koin-ping/backend/internal/config"
+	"github.com/kjannette/koin-ping/backend/internal/database"
+	"github.com/kjannette/koin-ping/backend/internal/firebase"
+	"github.com/kjannette/koin-ping/backend/internal/models"
+)
+
+func main() {
+	_ = godotenv.Load()
+
+	cfg, err := config.Load()
+	if err != nil {
+		log.Fatalf("Failed to load config: %v", err)
+	}
+
+	if err := firebase.Init(cfg.FirebaseProjectID); err != nil {
+		log.Fatalf("Failed to initialize Firebase: %v", err)
+	}
+
+	pool, connErr := database.Connect(cfg.DSN())
+	if connErr != nil {
+		log.Fatalf("Failed to connect to database: %v", connErr)
+	}
+
+	defer database.Close()
+
+	ctx := context.Background()
+	userModel := models.NewUserModel(pool)
+	alertModel := models.NewAlertRuleModel(pool)
+
+	users, listErr := userModel.ListPaidUsersWithoutActiveSubscription(ctx)
+	if listErr != nil {
+		log.Fatalf("Failed to list lapsed subscriptions: %v", listErr)
+	}
+
+	if len(users) == 0 {
+		log.Println("Subscription sweep: no lapsed paid users")
+		return
+	}
+
+	for _, u := range users {
+		if disableErr := firebase.SetUserDisabled(ctx, u.FirebaseUID, true); disableErr != nil {
+			log.Printf("Subscription sweep: Firebase disable failed user %s: %v", u.ID, disableErr)
+			continue
+		}
+
+		n, rulesErr := alertModel.DisableAllForUser(ctx, u.ID)
+		if rulesErr != nil {
+			log.Printf("Subscription sweep: disabling alerts failed for user %s: %v", u.ID, rulesErr)
+			continue
+		}
+
+		log.Printf(
+			"Subscription sweep: suspended user %s (%s tier, status=%s), disabled %d alert rules",
+			u.ID, u.SubscriptionTier, u.SubscriptionStatus, n,
+		)
+	}
+}