feat: subscriptions

packages/app/src/Subscription/index.ts

@@ -0,0 +1,46 @@
+import { unixNow } from "Util";
+
+export enum SubscriptionType {
+  Supporter = 0,
+  Premium = 1,
+}
+
+export enum LockedFeatures {
+  MultiAccount = 1,
+  NostrAddress = 2,
+  Badge = 3,
+  DeepL = 4,
+  RelayRetention = 5,
+  RelayBackup = 6,
+}
+
+export const Plans = [
+  {
+    id: SubscriptionType.Supporter,
+    price: 5_000,
+    disabled: true,
+    unlocks: [LockedFeatures.MultiAccount, LockedFeatures.NostrAddress, LockedFeatures.Badge],
+  },
+  {
+    id: SubscriptionType.Premium,
+    price: 20_000,
+    disabled: true,
+    unlocks: [LockedFeatures.DeepL, LockedFeatures.RelayBackup, LockedFeatures.RelayRetention],
+  },
+];
+
+export interface SubscriptionEvent {
+  id: string;
+  type: SubscriptionType;
+  start: number;
+  end: number;
+}
+
+export function getActiveSubscriptions(s: Array<SubscriptionEvent>) {
+  const now = unixNow();
+  return s.filter(a => a.start <= now && a.end > now);
+}
+
+export function getCurrentSubscription(s: Array<SubscriptionEvent>) {
+  return getActiveSubscriptions(s)[0];
+}