code refactoring + many security/bug fixes

types/enviornment.d.ts

@@ -17,11 +17,11 @@ declare global {
       BUCKET_NAME?: string;
       SPACES_REGION?: string;
 
-      NEXT_PUBLIC_EMAIL_PROVIDER?: true;
+      NEXT_PUBLIC_EMAIL_PROVIDER?: string;
       EMAIL_FROM?: string;
       EMAIL_SERVER?: string;
 
-      NEXT_PUBLIC_STRIPE_IS_ACTIVE?: string;
+      NEXT_PUBLIC_STRIPE?: string;
       STRIPE_SECRET_KEY?: string;
       MONTHLY_PRICE_ID?: string;
       YEARLY_PRICE_ID?: string;

types/global.ts

@@ -40,6 +40,9 @@ export interface CollectionIncludingMembersAndLinkCount
 export interface AccountSettings extends User {
   newPassword?: string;
   whitelistedUsers: string[];
+  subscription?: {
+    active?: boolean;
+  };
 }
 
 interface LinksIncludingTags extends Link {

types/next-auth.d.ts

@@ -5,7 +5,6 @@ declare module "next-auth" {
   interface Session {
     user: {
       id: number;
-      isSubscriber: boolean;
     };
   }
 
@@ -16,9 +15,8 @@ declare module "next-auth" {
 
 declare module "next-auth/jwt" {
   interface JWT {
-    sub: string;
+    sub?: number;
     id: number;
-    isSubscriber: boolean;
     iat: number;
     exp: number;
     jti: string;