enforce membership feature access in api and surface plans in admin

packages/shared/src/constants/index.ts

@@ -18,6 +18,35 @@ export type GymStatus = (typeof GYM_STATUSES)[number];
 export const MEMBERSHIP_TYPES = ["basic", "premium", "vip"] as const;
 export type MembershipType = (typeof MEMBERSHIP_TYPES)[number];
 
+export const MEMBERSHIP_FEATURES = {
+  basic: {
+    recommendationsPerMonth: 1,
+    hydrationTracking: false,
+    nutritionTracking: false,
+    advancedStatistics: false,
+  },
+  premium: {
+    recommendationsPerMonth: -1,
+    hydrationTracking: true,
+    nutritionTracking: true,
+    advancedStatistics: true,
+  },
+  vip: {
+    recommendationsPerMonth: -1,
+    hydrationTracking: true,
+    nutritionTracking: true,
+    advancedStatistics: true,
+  },
+} as const;
+
+export type MembershipFeatures = (typeof MEMBERSHIP_FEATURES)[MembershipType];
+
+export function getMembershipFeatures(
+  membershipType: MembershipType,
+): MembershipFeatures {
+  return MEMBERSHIP_FEATURES[membershipType];
+}
+
 // Membership Statuses
 export const MEMBERSHIP_STATUSES = ["active", "inactive", "suspended"] as const;
 export type MembershipStatus = (typeof MEMBERSHIP_STATUSES)[number];