chore: move subscription utils to shared

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 +1,52 @@
+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;
+}
+
+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);
+};