feat: skip updating subscription if unlimited seats

apps/web/src/views/members/components/InviteMemberForm.tsx

@@ -7,7 +7,9 @@ import { HiXMark } from "react-icons/hi2";
 import { z } from "zod";
 
 import type { InviteMemberInput } from "@kan/api/types";
+import type { Subscription } from "@kan/shared/utils";
 import { authClient } from "@kan/auth/client";
+import { getSubscriptionByPlan } from "@kan/shared/utils";
 
 import Button from "~/components/Button";
 import Input from "~/components/Input";
@@ -19,20 +21,13 @@ import { api } from "~/utils/api";
 
 export function InviteMemberForm({
   numberOfMembers,
-  activeTeamSubscription,
+  subscriptions,
+  unlimitedSeats,
   userId,
 }: {
   numberOfMembers: number;
-  activeTeamSubscription:
+  subscriptions: Subscription[] | undefined;
-    | {
+  unlimitedSeats: boolean;
-        id: number | null;
-        plan: string;
-        status: string;
-        seats: number | null;
-        periodStart: Date | null;
-        periodEnd: Date | null;
-      }
-    | undefined;
   userId: string | undefined;
 }) {
   const utils = api.useUtils();
@@ -87,16 +82,19 @@ export function InviteMemberForm({
     },
   });
 
+  const teamSubscription = getSubscriptionByPlan(subscriptions, "team");
+  const proSubscription = getSubscriptionByPlan(subscriptions, "pro");
+
+  const hasTeamSubscription = !!teamSubscription;
+  const hasProSubscription = !!proSubscription;
+
   let isYearly = false;
   let price = t`$10/month`;
   let billingType = t`monthly billing`;
 
-  if (
+  if (teamSubscription?.periodStart && teamSubscription?.periodEnd) {
-    activeTeamSubscription?.periodStart &&
+    const periodStartDate = new Date(teamSubscription.periodStart);
-    activeTeamSubscription?.periodEnd
+    const periodEndDate = new Date(teamSubscription.periodEnd);
-  ) {
-    const periodStartDate = new Date(activeTeamSubscription.periodStart);
-    const periodEndDate = new Date(activeTeamSubscription.periodEnd);
     const diffInDays = Math.round(
       (periodEndDate.getTime() - periodStartDate.getTime()) /
         (1000 * 60 * 60 * 24),
@@ -163,7 +161,8 @@ export function InviteMemberForm({
           placeholder={t`Email`}
           disabled={
             env("NEXT_PUBLIC_KAN_ENV") === "cloud" &&
-            !activeTeamSubscription?.id
+            !hasTeamSubscription &&
+            !hasProSubscription
           }
           {...register("email", { required: true })}
           onKeyDown={async (e) => {
@@ -177,13 +176,15 @@ export function InviteMemberForm({
 
         {env("NEXT_PUBLIC_KAN_ENV") === "cloud" && (
           <div className="mt-3 rounded-md bg-light-100 p-3 text-xs text-light-900 dark:bg-dark-200 dark:text-dark-900">
-            {activeTeamSubscription?.id ? (
+            {hasTeamSubscription || hasProSubscription ? (
               <div>
                 <span className="font-medium text-emerald-500 dark:text-emerald-400">
-                  {t`Team Plan`}
+                  {hasTeamSubscription ? t`Team Plan` : t`Pro Plan ∞`}
                 </span>
                 <p className="mt-1">
-                  {t`Adding a new member will cost an additional ${price} (${billingType}) per seat.`}
+                  {unlimitedSeats
+                    ? t`You have unlimited seats with your Pro Plan. There is no additional charge for new members!`
+                    : t`Adding a new member will cost an additional ${price} (${billingType}) per seat.`}
                 </p>
               </div>
             ) : (
@@ -201,7 +202,7 @@ export function InviteMemberForm({
       </div>
 
       <div className="mt-12 flex items-center justify-end border-t border-light-600 px-5 pb-5 pt-5 dark:border-dark-600">
-        {activeTeamSubscription?.id &&
+        {(hasTeamSubscription || hasProSubscription) &&
           env("NEXT_PUBLIC_KAN_ENV") === "cloud" && (
             <Toggle
               label={t`Invite another`}
@@ -213,7 +214,8 @@ export function InviteMemberForm({
           )}
         <div>
           {env("NEXT_PUBLIC_KAN_ENV") === "cloud" &&
-          !activeTeamSubscription?.id ? (
+          !hasTeamSubscription &&
+          !hasProSubscription ? (
             <Button
               type="button"
               onClick={handleUpgrade}

apps/web/src/views/members/index.tsx

@@ -3,7 +3,9 @@ import { env } from "next-runtime-env";
 import { HiEllipsisHorizontal, HiOutlinePlusSmall } from "react-icons/hi2";
 import { twMerge } from "tailwind-merge";
 
+import type { Subscription } from "@kan/shared/utils";
 import { authClient } from "@kan/auth/client";
+import { getSubscriptionByPlan, hasUnlimitedSeats } from "@kan/shared/utils";
 
 import Avatar from "~/components/Avatar";
 import Button from "~/components/Button";
@@ -30,13 +32,12 @@ export default function MembersPage() {
 
   const { data: session } = authClient.useSession();
 
-  const subscription = data?.subscriptions;
+  const subscriptions = data?.subscriptions as Subscription[] | undefined;
 
-  const activeTeamSubscription = subscription?.find(
+  const teamSubscription = getSubscriptionByPlan(subscriptions, "team");
-    (sub: any) =>
+  const proSubscription = getSubscriptionByPlan(subscriptions, "pro");
-      sub.status === "active" ||
+
-      (sub.status === "trialing" && sub.plan === "team"),
+  const unlimitedSeats = hasUnlimitedSeats(subscriptions);
-  );
 
   const TableRow = ({
     memberPublicId,
@@ -175,13 +176,20 @@ export default function MembersPage() {
               <div
                 className={twMerge(
                   "flex items-center rounded-full border px-3 py-1 text-center text-xs",
-                  activeTeamSubscription
+                  teamSubscription || proSubscription
                     ? "border-emerald-300 bg-emerald-50 text-emerald-400 dark:border-emerald-700 dark:bg-emerald-950 dark:text-emerald-400"
                     : "border-light-300 bg-light-50 text-light-1000 dark:border-dark-300 dark:bg-dark-50 dark:text-dark-900",
                 )}
               >
                 <span className="font-medium">
-                  {activeTeamSubscription ? t`Team Plan` : t`Free Plan`}
+                  {proSubscription
+                    ? t`Pro Plan`
+                    : teamSubscription
+                      ? t`Team Plan`
+                      : t`Free Plan`}
+                  {proSubscription && unlimitedSeats && (
+                    <span className="ml-1 text-xs">∞</span>
+                  )}
                 </span>
               </div>
             )}
@@ -268,7 +276,8 @@ export default function MembersPage() {
             <InviteMemberForm
               userId={session?.user.id}
               numberOfMembers={data?.members.length ?? 1}
-              activeTeamSubscription={activeTeamSubscription}
+              subscriptions={subscriptions}
+              unlimitedSeats={unlimitedSeats}
             />
           </Modal>
 

apps/web/src/views/settings/components/CustomURLConfirmation.tsx

@@ -1,37 +1,42 @@
 import { t } from "@lingui/core/macro";
 
+import { authClient } from "@kan/auth/client";
+
 import Button from "~/components/Button";
 import { useModal } from "~/providers/modal";
+import { usePopup } from "~/providers/popup";
 
 export function CustomURLConfirmation({
+  userId,
   workspacePublicId,
 }: {
+  userId: string;
   workspacePublicId: string;
 }) {
   const { closeModal, entityId } = useModal();
+  const { showPopup } = usePopup();
 
   const handleUpgrade = async () => {
-    try {
+    const { data, error } = await authClient.subscription.upgrade({
-      const response = await fetch("/api/stripe/create_checkout_session", {
+      plan: "pro",
-        method: "POST",
+      referenceId: workspacePublicId,
-        headers: {
+      metadata: { userId, workspacePublicId, workspaceSlug: entityId },
-          "Content-Type": "application/json",
+      successUrl: "/settings",
-        },
+      cancelUrl: "/settings",
-        body: JSON.stringify({
+      returnUrl: "/settings",
-          slug: entityId,
+      disableRedirect: true,
-          workspacePublicId: workspacePublicId,
+    });
-          cancelUrl: "/settings",
+
-          successUrl: "/settings",
+    if (data?.url) {
-        }),
+      window.location.href = data.url;
+    }
+
+    if (error) {
+      showPopup({
+        header: t`Error upgrading subscription`,
+        message: t`Please try again later, or contact customer support.`,
+        icon: "error",
       });
-
-      const { url } = (await response.json()) as { url: string };
-
-      if (url) {
-        window.location.href = url;
-      }
-    } catch (error) {
-      console.error("Error creating checkout session:", error);
     }
   };
 

packages/api/src/routers/member.ts

@@ -2,8 +2,10 @@ import { TRPCError } from "@trpc/server";
 import { z } from "zod";
 
 import * as memberRepo from "@kan/db/repository/member.repo";
+import * as subscriptionRepo from "@kan/db/repository/subscription.repo";
 import * as userRepo from "@kan/db/repository/user.repo";
 import * as workspaceRepo from "@kan/db/repository/workspace.repo";
+import { getSubscriptionByPlan, hasUnlimitedSeats } from "@kan/shared/utils";
 import { updateSubscriptionSeats } from "@kan/stripe";
 
 import { createTRPCRouter, protectedProcedure } from "../trpc";
@@ -62,29 +64,34 @@ export const memberRouter = createTRPCRouter({
       }
 
       if (process.env.NEXT_PUBLIC_KAN_ENV === "cloud") {
-        const subscriptions = await ctx.auth.api.listActiveSubscriptions({
+        const subscriptions = await subscriptionRepo.getByReferenceId(
-          workspacePublicId: workspace.publicId,
+          ctx.db,
-        });
+          workspace.publicId,
-
-        // get the active subscription
-        const activeSubscription = subscriptions.find(
-          (sub) =>
-            sub.status === "active" ||
-            (sub.status === "trialing" && sub.plan === "team"),
         );
 
-        if (!activeSubscription) {
+        // get the active subscriptions
+        const activeTeamSubscription = getSubscriptionByPlan(
+          subscriptions,
+          "team",
+        );
+        const activeProSubscription = getSubscriptionByPlan(
+          subscriptions,
+          "pro",
+        );
+        const unlimitedSeats = hasUnlimitedSeats(subscriptions);
+
+        if (!activeTeamSubscription && !activeProSubscription) {
           throw new TRPCError({
             message: `Workspace with public ID ${workspace.publicId} does not have an active subscription`,
             code: "NOT_FOUND",
           });
         }
 
-        // Update the Stripe subscription to add a seat with immediate proration
+        // Update the Stripe subscription
-        if (activeSubscription.stripeSubscriptionId) {
+        if (activeTeamSubscription?.stripeSubscriptionId && !unlimitedSeats) {
           try {
             await updateSubscriptionSeats(
-              activeSubscription.stripeSubscriptionId,
+              activeTeamSubscription.stripeSubscriptionId,
               1,
             );
           } catch (error) {
@@ -204,22 +211,23 @@ export const memberRouter = createTRPCRouter({
 
       // Handle subscription seat decrement for cloud environment
       if (process.env.NEXT_PUBLIC_KAN_ENV === "cloud") {
-        const subscriptions = await ctx.auth.api.listActiveSubscriptions({
+        const subscriptions = await subscriptionRepo.getByReferenceId(
-          workspacePublicId: workspace.publicId,
+          ctx.db,
-        });
+          workspace.publicId,
-
-        // get the active subscription
-        const activeSubscription = subscriptions.find(
-          (sub) =>
-            sub.status === "active" ||
-            (sub.status === "trialing" && sub.plan === "team"),
         );
 
+        // get the active subscriptions
+        const activeTeamSubscription = getSubscriptionByPlan(
+          subscriptions,
+          "team",
+        );
+        const unlimitedSeats = hasUnlimitedSeats(subscriptions);
+
         // Only decrease seats if there's an active subscription and stripeSubscriptionId
-        if (activeSubscription?.stripeSubscriptionId) {
+        if (activeTeamSubscription?.stripeSubscriptionId && !unlimitedSeats) {
           try {
             await updateSubscriptionSeats(
-              activeSubscription.stripeSubscriptionId,
+              activeTeamSubscription.stripeSubscriptionId,
               -1,
             );
           } catch (error) {

packages/auth/src/auth.ts

@@ -10,6 +10,7 @@ import { env } from "next-runtime-env";
 
 import type { dbClient } from "@kan/db/client";
 import * as memberRepo from "@kan/db/repository/member.repo";
+import * as subscriptionRepo from "@kan/db/repository/subscription.repo";
 import * as userRepo from "@kan/db/repository/user.repo";
 import * as workspaceRepo from "@kan/db/repository/workspace.repo";
 import * as schema from "@kan/db/schema";
@@ -203,6 +204,24 @@ export const initAuth = (db: dbClient) => {
                     },
                   };
                 },
+                onSubscriptionComplete: async ({
+                  subscription,
+                  stripeSubscription,
+                }) => {
+                  // Set unlimited seats to true for pro plans
+                  if (subscription.plan === "pro") {
+                    await subscriptionRepo.updateByStripeSubscriptionId(
+                      db,
+                      stripeSubscription.id,
+                      {
+                        unlimitedSeats: true,
+                      },
+                    );
+                    console.log(
+                      `Pro subscription ${stripeSubscription.id} activated with unlimited seats`,
+                    );
+                  }
+                },
               },
             }),
           ]

packages/db/migrations/20250907185512_AddUnlimitedSeatsToSubscription.sql

@@ -0,0 +1 @@
+ALTER TABLE "subscription" ADD COLUMN "unlimitedSeats" boolean DEFAULT false NOT NULL;

packages/db/migrations/meta/_journal.json

@@ -71,6 +71,13 @@
       "when": 1756803246096,
       "tag": "20250902085406_AddSubscriptions",
       "breakpoints": true
+    },
+    {
+      "idx": 10,
+      "version": "7",
+      "when": 1757271312974,
+      "tag": "20250907185512_AddUnlimitedSeatsToSubscription",
+      "breakpoints": true
     }
   ]
 }

packages/db/src/repository/subscription.repo.ts

@@ -0,0 +1,77 @@
+import { eq } from "drizzle-orm";
+
+import type { dbClient } from "@kan/db/client";
+import { subscription } from "@kan/db/schema";
+
+export const updateById = async (
+  db: dbClient,
+  subscriptionId: number,
+  updates: {
+    unlimitedSeats?: boolean;
+    status?: string;
+    seats?: number | null;
+    periodStart?: Date | null;
+    periodEnd?: Date | null;
+    cancelAtPeriodEnd?: boolean | null;
+  },
+) => {
+  const [result] = await db
+    .update(subscription)
+    .set({
+      ...updates,
+      updatedAt: new Date(),
+    })
+    .where(eq(subscription.id, subscriptionId))
+    .returning({
+      id: subscription.id,
+      plan: subscription.plan,
+      status: subscription.status,
+      unlimitedSeats: subscription.unlimitedSeats,
+    });
+
+  return result;
+};
+
+export const updateByStripeSubscriptionId = async (
+  db: dbClient,
+  stripeSubscriptionId: string,
+  updates: {
+    unlimitedSeats?: boolean;
+    status?: string;
+    seats?: number | null;
+    periodStart?: Date | null;
+    periodEnd?: Date | null;
+    cancelAtPeriodEnd?: boolean | null;
+  },
+) => {
+  const [result] = await db
+    .update(subscription)
+    .set({
+      ...updates,
+      updatedAt: new Date(),
+    })
+    .where(eq(subscription.stripeSubscriptionId, stripeSubscriptionId))
+    .returning({
+      id: subscription.id,
+      plan: subscription.plan,
+      status: subscription.status,
+      unlimitedSeats: subscription.unlimitedSeats,
+    });
+
+  return result;
+};
+
+export const getByStripeSubscriptionId = async (
+  db: dbClient,
+  stripeSubscriptionId: string,
+) => {
+  return await db.query.subscription.findFirst({
+    where: eq(subscription.stripeSubscriptionId, stripeSubscriptionId),
+  });
+};
+
+export const getByReferenceId = async (db: dbClient, referenceId: string) => {
+  return await db.query.subscription.findMany({
+    where: eq(subscription.referenceId, referenceId),
+  });
+};

packages/db/src/repository/workspace.repo.ts

@@ -127,6 +127,7 @@ export const getByPublicIdWithMembers = (
           plan: true,
           status: true,
           seats: true,
+          unlimitedSeats: true,
           periodStart: true,
           periodEnd: true,
         },

packages/db/src/schema/subscriptions.ts

@@ -23,6 +23,7 @@ export const subscription = pgTable("subscription", {
   periodEnd: timestamp("periodEnd"),
   cancelAtPeriodEnd: boolean("cancelAtPeriodEnd"),
   seats: integer("seats"),
+  unlimitedSeats: boolean("unlimitedSeats").default(false).notNull(),
   trialStart: timestamp("trialStart"),
   trialEnd: timestamp("trialEnd"),
   createdAt: timestamp("createdAt").notNull().defaultNow(),

packages/shared/src/utils/index.ts

@@ -1,2 +1,3 @@
 export * from "./generateUID";
 export * from "./generateSlug";
+export * from "./subscriptions";

packages/shared/src/utils/subscriptions.ts

@@ -0,0 +1,57 @@
+export type SubscriptionStatus =
+  | "active"
+  | "trialing"
+  | "past_due"
+  | "canceled"
+  | "unpaid";
+export type SubscriptionPlan = "team" | "pro";
+
+export interface Subscription {
+  id: number | null;
+  plan: string;
+  status: string;
+  seats: number | null;
+  unlimitedSeats: boolean;
+  periodStart: Date | null;
+  periodEnd: Date | null;
+  referenceId: string;
+  stripeSubscriptionId: string | null;
+  stripeCustomerId: string | null;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export const getActiveSubscriptions = (
+  subscriptions: Subscription[] | undefined,
+) => {
+  if (!subscriptions) return [];
+  return subscriptions.filter(
+    (sub) => sub.status === "active" || sub.status === "trialing",
+  );
+};
+
+export const getSubscriptionByPlan = (
+  subscriptions: Subscription[] | undefined,
+  plan: SubscriptionPlan,
+) => {
+  if (!subscriptions) return undefined;
+  return subscriptions.find(
+    (sub) =>
+      sub.plan === plan &&
+      (sub.status === "active" || sub.status === "trialing"),
+  );
+};
+
+export const hasActiveSubscription = (
+  subscriptions: Subscription[] | undefined,
+  plan: SubscriptionPlan,
+) => {
+  return getSubscriptionByPlan(subscriptions, plan) !== undefined;
+};
+
+export const hasUnlimitedSeats = (
+  subscriptions: Subscription[] | undefined,
+) => {
+  const activeSubscriptions = getActiveSubscriptions(subscriptions);
+  return activeSubscriptions.some((sub) => sub.unlimitedSeats);
+};