Added backend limits

backend/src/app.ts

@@ -94,6 +94,7 @@ import {
   getMembershipForUser,
   getNextWorkspaceId,
   getWorkspaceById,
+  getWorkspaceBirdCount,
   getWorkspaceTotalBirdCount,
   listOwnedWorkspacesByOwnerEmail,
   listRescueWorkspacesForAdmin,
@@ -951,6 +952,26 @@ const subscriptionAllowsWrite = (workspace: WorkspaceRow) => {
   return workspace.subscription_status === 'active' || workspace.subscription_status === 'trialing';
 };
 
+const getBillingPlanBirdLimit = (billingPlan: BillingPlan) => {
+  if (billingPlan === 'rescue_free') {
+    return null;
+  }
+
+  if (billingPlan === 'household_basic') {
+    return 4;
+  }
+
+  if (billingPlan === 'household_plus') {
+    return 10;
+  }
+
+  if (billingPlan === 'household_macaw') {
+    return 16;
+  }
+
+  return null;
+};
+
 const mapStripeSubscriptionStatus = (status: Stripe.Subscription.Status): SubscriptionStatus => {
   if (status === 'active' || status === 'trialing' || status === 'past_due' || status === 'canceled' || status === 'unpaid') {
     return status;
@@ -3118,6 +3139,23 @@ app.post('/api/birds', requireAuth, requireWriteAccess, requireWorkspaceRole(['o
   let uploadedObjectKeyToCleanup: string | null = null;
 
   try {
+    const birdLimit = getBillingPlanBirdLimit(req.auth!.workspace.billing_plan);
+
+    if (birdLimit !== null) {
+      const currentBirdCount = await getWorkspaceBirdCount(req.auth!.workspace.id);
+
+      if (currentBirdCount >= birdLimit) {
+        res.status(409).json({
+          error: 'This flock has reached the bird limit for the selected plan. Upgrade the flock subscription or memorialize a bird before adding another.',
+          code: 'billing_plan_bird_limit_reached',
+          birdLimit,
+          currentBirdCount,
+          billingPlan: req.auth!.workspace.billing_plan,
+        });
+        return;
+      }
+    }
+
     const birdId = crypto.randomUUID();
     const photoStorage = await resolveBirdPhotoStorage({
       birdId,