├── arch.png
├── app
    ├── favicon.ico
    ├── api
    │   ├── auth
    │   │   └── [...nextauth]
    │   │   │   └── route.ts
    │   ├── inventory
    │   │   └── route.ts
    │   ├── buy
    │   │   └── route.ts
    │   └── helius
    │   │   └── route.ts
    ├── types
    │   ├── next-auth.d.ts
    │   └── shamirs-secret-sharing.d.ts
    ├── components
    │   ├── Providers.tsx
    │   ├── Navbar.tsx
    │   └── ProductCard.tsx
    ├── layout.tsx
    ├── page.tsx
    └── globals.css
├── postcss.config.mjs
├── public
    ├── vercel.svg
    ├── window.svg
    ├── file.svg
    ├── globe.svg
    └── next.svg
├── next.config.ts
├── prisma
    ├── migrations
    │   ├── migration_lock.toml
    │   ├── 20250711094419_add_partialkeytouser
    │   │   └── migration.sql
    │   └── 20250709232232_init
    │   │   └── migration.sql
    ├── index.ts
    └── schema.prisma
├── lib
    ├── utils.ts
    ├── addUsertoHelius.ts
    ├── authConfig.ts
    └── shamir-secret.ts
├── components.json
├── eslint.config.mjs
├── README.md
├── .gitignore
├── tsconfig.json
├── components
    └── ui
    │   ├── input.tsx
    │   ├── button.tsx
    │   ├── card.tsx
    │   └── select.tsx
└── package.json


/arch.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/alxn787/Payment-gateway/HEAD/arch.png


--------------------------------------------------------------------------------
/app/favicon.ico:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/alxn787/Payment-gateway/HEAD/app/favicon.ico


--------------------------------------------------------------------------------
/postcss.config.mjs:
--------------------------------------------------------------------------------
1 | const config = {
2 |   plugins: ["@tailwindcss/postcss"],
3 | };
4 | 
5 | export default config;
6 | 


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/public/vercel.svg:
--------------------------------------------------------------------------------
1 | <svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1155 1000"><path d="m577.3 0 577.4 1000H0z" fill="#fff"/></svg>


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/next.config.ts:
--------------------------------------------------------------------------------
1 | import type { NextConfig } from "next";
2 | 
3 | const nextConfig: NextConfig = {
4 |   /* config options here */
5 | };
6 | 
7 | export default nextConfig;
8 | 


--------------------------------------------------------------------------------
/prisma/migrations/migration_lock.toml:
--------------------------------------------------------------------------------
1 | # Please do not edit this file manually
2 | # It should be added in your version-control system (e.g., Git)
3 | provider = "postgresql"
4 | 


--------------------------------------------------------------------------------
/lib/utils.ts:
--------------------------------------------------------------------------------
1 | import { clsx, type ClassValue } from "clsx"
2 | import { twMerge } from "tailwind-merge"
3 | 
4 | export function cn(...inputs: ClassValue[]) {
5 |   return twMerge(clsx(inputs))
6 | }
7 | 


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/app/api/auth/[...nextauth]/route.ts:
--------------------------------------------------------------------------------
1 | import NextAuth from "next-auth";
2 | import { authConfig } from "@/lib/authConfig";
3 | import { AuthOptions } from "next-auth";
4 | 
5 | const handler = NextAuth(authConfig as AuthOptions);
6 | 
7 | export { handler as GET, handler as POST };


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/public/window.svg:
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1 | <svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" clip-rule="evenodd" d="M1.5 2.5h13v10a1 1 0 0 1-1 1h-11a1 1 0 0 1-1-1zM0 1h16v11.5a2.5 2.5 0 0 1-2.5 2.5h-11A2.5 2.5 0 0 1 0 12.5zm3.75 4.5a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5M7 4.75a.75.75 0 1 1-1.5 0 .75.75 0 0 1 1.5 0m1.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5" fill="#666"/></svg>


--------------------------------------------------------------------------------
/public/file.svg:
--------------------------------------------------------------------------------
1 | <svg fill="none" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="M14.5 13.5V5.41a1 1 0 0 0-.3-.7L9.8.29A1 1 0 0 0 9.08 0H1.5v13.5A2.5 2.5 0 0 0 4 16h8a2.5 2.5 0 0 0 2.5-2.5m-1.5 0v-7H8v-5H3v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1M9.5 5V2.12L12.38 5zM5.13 5h-.62v1.25h2.12V5zm-.62 3h7.12v1.25H4.5zm.62 3h-.62v1.25h7.12V11z" clip-rule="evenodd" fill="#666" fill-rule="evenodd"/></svg>


--------------------------------------------------------------------------------
/prisma/migrations/20250711094419_add_partialkeytouser/migration.sql:
--------------------------------------------------------------------------------
 1 | /*
 2 |   Warnings:
 3 | 
 4 |   - You are about to drop the `PartialKey` table. If the table is not empty, all the data it contains will be lost.
 5 | 
 6 | */
 7 | -- DropForeignKey
 8 | ALTER TABLE "PartialKey" DROP CONSTRAINT "PartialKey_userId_fkey";
 9 | 
10 | -- AlterTable
11 | ALTER TABLE "User" ADD COLUMN     "partialKey" TEXT;
12 | 
13 | -- DropTable
14 | DROP TABLE "PartialKey";
15 | 


--------------------------------------------------------------------------------
/components.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "$schema": "https://ui.shadcn.com/schema.json",
 3 |   "style": "new-york",
 4 |   "rsc": true,
 5 |   "tsx": true,
 6 |   "tailwind": {
 7 |     "config": "",
 8 |     "css": "app/globals.css",
 9 |     "baseColor": "neutral",
10 |     "cssVariables": true,
11 |     "prefix": ""
12 |   },
13 |   "aliases": {
14 |     "components": "@/components",
15 |     "utils": "@/lib/utils",
16 |     "ui": "@/components/ui",
17 |     "lib": "@/lib",
18 |     "hooks": "@/hooks"
19 |   },
20 |   "iconLibrary": "lucide"
21 | }


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/eslint.config.mjs:
--------------------------------------------------------------------------------
 1 | import { dirname } from "path";
 2 | import { fileURLToPath } from "url";
 3 | import { FlatCompat } from "@eslint/eslintrc";
 4 | 
 5 | const __filename = fileURLToPath(import.meta.url);
 6 | const __dirname = dirname(__filename);
 7 | 
 8 | const compat = new FlatCompat({
 9 |   baseDirectory: __dirname,
10 | });
11 | 
12 | const eslintConfig = [
13 |   ...compat.extends("next/core-web-vitals", "next/typescript"),
14 |   {
15 |     ignores: ["app/generated/prisma/"],
16 |   }
17 | ];
18 | 
19 | export default eslintConfig;
20 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | # Crypto Payment Gateway
 2 | 
 3 | ## Architecture
 4 | ![alt text](arch.png)
 5 | 
 6 | This architecture is designed for secure, efficient, and scalable digital asset transactions, ready to power e-commerce, dApps, and beyond.
 7 | 
 8 | Key features include:
 9 | 
10 | Key splitting across DB and Redis for enhanced security and resilience.
11 | 
12 | Helius indexer with webhooks for automated address sweeping from split keypairs.
13 | 
14 | Secure cold wallet integration for large fund protection.
15 | 
16 | Shamir's secret for for highly secure transaction signing.
17 | 


--------------------------------------------------------------------------------
/prisma/index.ts:
--------------------------------------------------------------------------------
 1 | import { PrismaClient } from "@/app/generated/prisma";
 2 | 
 3 | const prismaClientSingleton = () => {
 4 |   return new PrismaClient();
 5 | };
 6 | 
 7 | type PrismaClientSingleton = ReturnType<typeof prismaClientSingleton>;
 8 | 
 9 | // eslint-disable-next-line
10 | const globalForPrisma = globalThis as unknown as {
11 |   prisma: PrismaClientSingleton | undefined;
12 | };
13 | 
14 | const prisma = globalForPrisma.prisma ?? prismaClientSingleton();
15 | 
16 | export default prisma;
17 | 
18 | if (process.env.NODE_ENV !== "production") globalForPrisma.prisma = prisma;


--------------------------------------------------------------------------------
/lib/addUsertoHelius.ts:
--------------------------------------------------------------------------------
 1 | import { Helius} from 'helius-sdk'; // Replace with 'helius-sdk' in a production setting
 2 | 
 3 | export async function addUsertoHelius(pubkey: string) {
 4 |   try{
 5 | 
 6 |     const helius = new Helius(process.env.HELIUS_KEY as string);
 7 |     
 8 |     const webhookId = process.env.HELIUS_WEBHOOK_ID as string;
 9 |     
10 |     const response = await helius.appendAddressesToWebhook(webhookId, [
11 |       pubkey,
12 |     ]);
13 |     return response;
14 |   } catch (error) {
15 |     console.error('Error adding user to Helius:', error);
16 |   }
17 | 
18 | }
19 | 


--------------------------------------------------------------------------------
/app/types/next-auth.d.ts:
--------------------------------------------------------------------------------
 1 | // next-auth.d.ts
 2 | import { DefaultSession, DefaultUser } from "next-auth";
 3 | import { JWT as DefaultJWT } from "next-auth/jwt";
 4 | 
 5 | declare module "next-auth" {
 6 |   interface Session {
 7 |     user: DefaultSession["user"] & {
 8 |       uid?: string | null; 
 9 |       pubKey?: string | null; 
10 |     };
11 |   }
12 | 
13 |   interface User extends DefaultUser {
14 |     Pubkey?: string | null;
15 |   }
16 | }
17 | 
18 | declare module "next-auth/jwt" {
19 |   interface JWT extends DefaultJWT {
20 |     uid?: string | null; 
21 |     pubKey?: string | null; 
22 |   }
23 | }


--------------------------------------------------------------------------------
/app/api/inventory/route.ts:
--------------------------------------------------------------------------------
 1 | import { PrismaClient } from '../../generated/prisma'; 
 2 | import { NextResponse } from 'next/server';
 3 | 
 4 | const prisma = new PrismaClient();
 5 | 
 6 | export async function GET() {
 7 |   try {
 8 |     const inv = await prisma.inventory.findMany();
 9 | 
10 |     return NextResponse.json({ message: "Inventory populated successfully!", data: inv }, { status: 200 });
11 |   } catch (error) {
12 |     console.error("Error populating inventory:", error);
13 |     return NextResponse.json({ message: "Failed to populate inventory.", error: error }, { status: 500 });
14 |   } finally {
15 |     await prisma.$disconnect(); 
16 |   }
17 | }
18 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | /.pnp
 6 | .pnp.*
 7 | .yarn/*
 8 | !.yarn/patches
 9 | !.yarn/plugins
10 | !.yarn/releases
11 | !.yarn/versions
12 | 
13 | # testing
14 | /coverage
15 | 
16 | # next.js
17 | /.next/
18 | /out/
19 | 
20 | # production
21 | /build
22 | 
23 | # misc
24 | .DS_Store
25 | *.pem
26 | 
27 | # debug
28 | npm-debug.log*
29 | yarn-debug.log*
30 | yarn-error.log*
31 | .pnpm-debug.log*
32 | 
33 | # env files (can opt-in for committing if needed)
34 | .env*
35 | 
36 | # vercel
37 | .vercel
38 | 
39 | # typescript
40 | *.tsbuildinfo
41 | next-env.d.ts
42 | 
43 | /app/generated/prisma
44 | 


--------------------------------------------------------------------------------
/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "target": "ES2017",
 4 |     "lib": ["dom", "dom.iterable", "esnext"],
 5 |     "allowJs": true,
 6 |     "skipLibCheck": true,
 7 |     "strict": true,
 8 |     "noEmit": true,
 9 |     "esModuleInterop": true,
10 |     "module": "esnext",
11 |     "moduleResolution": "bundler",
12 |     "resolveJsonModule": true,
13 |     "isolatedModules": true,
14 |     "jsx": "preserve",
15 |     "incremental": true,
16 |     "plugins": [
17 |       {
18 |         "name": "next"
19 |       }
20 |     ],
21 |     "paths": {
22 |       "@/*": ["./*"]
23 |     }
24 |   },
25 |   "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts","**/*.d.ts", ],
26 |   "exclude": ["node_modules"]
27 | }
28 | 


--------------------------------------------------------------------------------
/app/components/Providers.tsx:
--------------------------------------------------------------------------------
 1 | "use client";
 2 | import { SessionProvider } from 'next-auth/react';
 3 | import { ConnectionProvider, WalletProvider } from '@solana/wallet-adapter-react';
 4 | import { WalletModalProvider } from '@solana/wallet-adapter-react-ui';
 5 | import '@solana/wallet-adapter-react-ui/styles.css';
 6 | 
 7 | 
 8 | 
 9 | export default function Providers({ children }: { children: React.ReactNode }) {
10 |   return (
11 |     <SessionProvider>
12 |       <ConnectionProvider endpoint='https://api.devnet.solana.com'>
13 |         <WalletProvider wallets={[]} autoConnect>
14 |           <WalletModalProvider>{children}</WalletModalProvider>
15 |         </WalletProvider>
16 |       </ConnectionProvider>
17 |     </SessionProvider>
18 |   );
19 | }
20 | 


--------------------------------------------------------------------------------
/app/types/shamirs-secret-sharing.d.ts:
--------------------------------------------------------------------------------
 1 | // src/types/shamirs-secret-sharing.d.ts
 2 | 
 3 | declare module 'shamirs-secret-sharing' {
 4 |   /**
 5 |    * Splits a secret (Buffer) into 'shares' number of shares,
 6 |    * requiring 'threshold' of them to reconstruct the secret.
 7 |    * @param secret The secret value as a Buffer.
 8 |    * @param options An object with 'shares' (total number of shares) and 'threshold' (minimum required shares).
 9 |    * @returns An array of Buffer objects, each representing a share.
10 |    */
11 |   function split(secret: Buffer, options: { shares: number; threshold: number }): Buffer[];
12 | 
13 |   /**
14 |    * Combines an array of shares (Buffers) to reconstruct the original secret.
15 |    * @param shares An array of Buffer objects, each representing a share.
16 |    * @returns The reconstructed secret as a Buffer.
17 |    */
18 |   function combine(shares: Buffer[]): Buffer;
19 | }


--------------------------------------------------------------------------------
/public/globe.svg:
--------------------------------------------------------------------------------
1 | <svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><g clip-path="url(#a)"><path fill-rule="evenodd" clip-rule="evenodd" d="M10.27 14.1a6.5 6.5 0 0 0 3.67-3.45q-1.24.21-2.7.34-.31 1.83-.97 3.1M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16m.48-1.52a7 7 0 0 1-.96 0H7.5a4 4 0 0 1-.84-1.32q-.38-.89-.63-2.08a40 40 0 0 0 3.92 0q-.25 1.2-.63 2.08a4 4 0 0 1-.84 1.31zm2.94-4.76q1.66-.15 2.95-.43a7 7 0 0 0 0-2.58q-1.3-.27-2.95-.43a18 18 0 0 1 0 3.44m-1.27-3.54a17 17 0 0 1 0 3.64 39 39 0 0 1-4.3 0 17 17 0 0 1 0-3.64 39 39 0 0 1 4.3 0m1.1-1.17q1.45.13 2.69.34a6.5 6.5 0 0 0-3.67-3.44q.65 1.26.98 3.1M8.48 1.5l.01.02q.41.37.84 1.31.38.89.63 2.08a40 40 0 0 0-3.92 0q.25-1.2.63-2.08a4 4 0 0 1 .85-1.32 7 7 0 0 1 .96 0m-2.75.4a6.5 6.5 0 0 0-3.67 3.44 29 29 0 0 1 2.7-.34q.31-1.83.97-3.1M4.58 6.28q-1.66.16-2.95.43a7 7 0 0 0 0 2.58q1.3.27 2.95.43a18 18 0 0 1 0-3.44m.17 4.71q-1.45-.12-2.69-.34a6.5 6.5 0 0 0 3.67 3.44q-.65-1.27-.98-3.1" fill="#666"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h16v16H0z"/></clipPath></defs></svg>


--------------------------------------------------------------------------------
/app/api/buy/route.ts:
--------------------------------------------------------------------------------
 1 | import { authConfig } from "@/lib/authConfig";
 2 | import prisma from "@/prisma";
 3 | import { getServerSession } from "next-auth";
 4 | 
 5 | export async function POST(req: Request) {
 6 |   const { productId , signature, productprice } = await req.json();
 7 |   const session = await getServerSession(authConfig);
 8 |   if (!session?.user) {
 9 |     return new Response("Unauthorized", {
10 |       status: 401,
11 |       headers: {
12 |         "Content-Type": "text/plain",
13 |       },
14 |     });
15 |   }
16 |   await prisma.inventory.update({
17 |     where: {
18 |         id: productId,
19 |     },
20 |     data: {
21 |         stock: {
22 |             decrement: 1,
23 |         }
24 |     },
25 |   })
26 |   const order = await prisma.order.create({
27 |     data: {
28 |         userId: session.user.uid??"",
29 |         amount: productprice,
30 |         Signature: signature,
31 |         paymentStatus: "confirmed",
32 |     },  
33 |   });
34 | 
35 | 
36 | return  Response.json({order: order});
37 |   
38 | }


--------------------------------------------------------------------------------
/components/ui/input.tsx:
--------------------------------------------------------------------------------
 1 | import * as React from "react"
 2 | 
 3 | import { cn } from "@/lib/utils"
 4 | 
 5 | function Input({ className, type, ...props }: React.ComponentProps<"input">) {
 6 |   return (
 7 |     <input
 8 |       type={type}
 9 |       data-slot="input"
10 |       className={cn(
11 |         "file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 border-input flex h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
12 |         "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px]",
13 |         "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
14 |         className
15 |       )}
16 |       {...props}
17 |     />
18 |   )
19 | }
20 | 
21 | export { Input }
22 | 


--------------------------------------------------------------------------------
/app/layout.tsx:
--------------------------------------------------------------------------------
 1 | 'use client'
 2 | import { Geist, Geist_Mono } from "next/font/google";
 3 | import "./globals.css";
 4 | import Providers from "./components/Providers";
 5 | import { SessionProvider } from "next-auth/react";
 6 | 
 7 | 
 8 | const geistSans = Geist({
 9 |   variable: "--font-geist-sans",
10 |   subsets: ["latin"],
11 | });
12 | 
13 | const geistMono = Geist_Mono({
14 |   variable: "--font-geist-mono",
15 |   subsets: ["latin"],
16 | });
17 | 
18 | // export const metadata: Metadata = {
19 | //   title: "Create Next App",
20 | //   description: "Generated by create next app",
21 | // };
22 | 
23 | export default function RootLayout({
24 |   children,
25 | }: Readonly<{
26 |   children: React.ReactNode;
27 | }>) {
28 |   return (
29 |     <html lang="en">
30 |       <body
31 |         className={`${geistSans.variable} ${geistMono.variable} antialiased`}
32 |         >
33 |           <SessionProvider>
34 |           <Providers>
35 | 
36 |         {children}
37 |       </Providers>
38 |           </SessionProvider>
39 |       </body>
40 |     </html>
41 |   );
42 | }
43 | 


--------------------------------------------------------------------------------
/prisma/schema.prisma:
--------------------------------------------------------------------------------
 1 | // This is your Prisma schema file,
 2 | // learn more about it in the docs: https://pris.ly/d/prisma-schema
 3 | 
 4 | // Looking for ways to speed up your queries, or scale easily with your serverless or edge functions?
 5 | // Try Prisma Accelerate: https://pris.ly/cli/accelerate-init
 6 | 
 7 | generator client {
 8 |   provider = "prisma-client-js"
 9 |   output   = "../app/generated/prisma"
10 | }
11 | 
12 | datasource db {
13 |   provider = "postgresql"
14 |   url      = env("DATABASE_URL")
15 | }
16 | 
17 | model User {
18 |   id             String      @id @default(uuid())
19 |   username       String      @unique
20 |   Pubkey         String
21 |   name           String?
22 |   subId          String
23 |   ProfilePicture String?
24 |   partialKey     String?
25 |   orders          Order[]
26 | }
27 | 
28 | model Order {
29 |   id             String      @id @default(uuid())
30 |   userId         String
31 |   amount         Float
32 |   Signature      String
33 |   paymentStatus  String
34 |   user           User        @relation(fields: [userId], references: [id])
35 | }
36 | 
37 | model Inventory {
38 |   id             String      @id @default(uuid())
39 |   name           String
40 |   price          Float
41 |   stock          Int
42 |   image          String
43 | }


--------------------------------------------------------------------------------
/public/next.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 394 80"><path fill="#000" d="M262 0h68.5v12.7h-27.2v66.6h-13.6V12.7H262V0ZM149 0v12.7H94v20.4h44.3v12.6H94v21h55v12.6H80.5V0h68.7zm34.3 0h-17.8l63.8 79.4h17.9l-32-39.7 32-39.6h-17.9l-23 28.6-23-28.6zm18.3 56.7-9-11-27.1 33.7h17.8l18.3-22.7z"/><path fill="#000" d="M81 79.3 17 0H0v79.3h13.6V17l50.2 62.3H81Zm252.6-.4c-1 0-1.8-.4-2.5-1s-1.1-1.6-1.1-2.6.3-1.8 1-2.5 1.6-1 2.6-1 1.8.3 2.5 1a3.4 3.4 0 0 1 .6 4.3 3.7 3.7 0 0 1-3 1.8zm23.2-33.5h6v23.3c0 2.1-.4 4-1.3 5.5a9.1 9.1 0 0 1-3.8 3.5c-1.6.8-3.5 1.3-5.7 1.3-2 0-3.7-.4-5.3-1s-2.8-1.8-3.7-3.2c-.9-1.3-1.4-3-1.4-5h6c.1.8.3 1.6.7 2.2s1 1.2 1.6 1.5c.7.4 1.5.5 2.4.5 1 0 1.8-.2 2.4-.6a4 4 0 0 0 1.6-1.8c.3-.8.5-1.8.5-3V45.5zm30.9 9.1a4.4 4.4 0 0 0-2-3.3 7.5 7.5 0 0 0-4.3-1.1c-1.3 0-2.4.2-3.3.5-.9.4-1.6 1-2 1.6a3.5 3.5 0 0 0-.3 4c.3.5.7.9 1.3 1.2l1.8 1 2 .5 3.2.8c1.3.3 2.5.7 3.7 1.2a13 13 0 0 1 3.2 1.8 8.1 8.1 0 0 1 3 6.5c0 2-.5 3.7-1.5 5.1a10 10 0 0 1-4.4 3.5c-1.8.8-4.1 1.2-6.8 1.2-2.6 0-4.9-.4-6.8-1.2-2-.8-3.4-2-4.5-3.5a10 10 0 0 1-1.7-5.6h6a5 5 0 0 0 3.5 4.6c1 .4 2.2.6 3.4.6 1.3 0 2.5-.2 3.5-.6 1-.4 1.8-1 2.4-1.7a4 4 0 0 0 .8-2.4c0-.9-.2-1.6-.7-2.2a11 11 0 0 0-2.1-1.4l-3.2-1-3.8-1c-2.8-.7-5-1.7-6.6-3.2a7.2 7.2 0 0 1-2.4-5.7 8 8 0 0 1 1.7-5 10 10 0 0 1 4.3-3.5c2-.8 4-1.2 6.4-1.2 2.3 0 4.4.4 6.2 1.2 1.8.8 3.2 2 4.3 3.4 1 1.4 1.5 3 1.5 5h-5.8z"/></svg>


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "payment_gateway",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "scripts": {
 6 |     "postinstall": "prisma generate",
 7 |     "dev": "next dev",
 8 |     "build": "next build",
 9 |     "start": "next start",
10 |     "lint": "next lint"
11 |   },
12 |   "dependencies": {
13 |     "@prisma/client": "^6.11.1",
14 |     "@radix-ui/react-select": "^2.2.5",
15 |     "@radix-ui/react-slot": "^1.2.3",
16 |     "@solana/wallet-adapter-react": "^0.15.39",
17 |     "@solana/wallet-adapter-react-ui": "^0.9.39",
18 |     "@solana/web3.js": "^1.98.2",
19 |     "@types/crypto-js": "^4.2.2",
20 |     "@upstash/redis": "^1.35.1",
21 |     "axios": "^1.10.0",
22 |     "class-variance-authority": "^0.7.1",
23 |     "clsx": "^2.1.1",
24 |     "crypto-js": "^4.2.0",
25 |     "helius-sdk": "^1.5.1",
26 |     "ioredis": "^5.6.1",
27 |     "lucide-react": "^0.525.0",
28 |     "next": "15.3.5",
29 |     "next-auth": "^4.24.11",
30 |     "react": "^19.0.0",
31 |     "react-dom": "^19.0.0",
32 |     "shamirs-secret-sharing": "^2.0.1",
33 |     "tailwind-merge": "^3.3.1"
34 |   },
35 |   "devDependencies": {
36 |     "@eslint/eslintrc": "^3",
37 |     "@tailwindcss/postcss": "^4",
38 |     "@types/node": "^20",
39 |     "@types/react": "^19",
40 |     "@types/react-dom": "^19",
41 |     "eslint": "^9",
42 |     "eslint-config-next": "15.3.5",
43 |     "prisma": "^6.11.1",
44 |     "tailwindcss": "^4",
45 |     "tw-animate-css": "^1.3.5",
46 |     "typescript": "^5"
47 |   }
48 | }
49 | 


--------------------------------------------------------------------------------
/prisma/migrations/20250709232232_init/migration.sql:
--------------------------------------------------------------------------------
 1 | -- CreateTable
 2 | CREATE TABLE "User" (
 3 |     "id" TEXT NOT NULL,
 4 |     "username" TEXT NOT NULL,
 5 |     "Pubkey" TEXT NOT NULL,
 6 |     "name" TEXT,
 7 |     "subId" TEXT NOT NULL,
 8 |     "ProfilePicture" TEXT,
 9 | 
10 |     CONSTRAINT "User_pkey" PRIMARY KEY ("id")
11 | );
12 | 
13 | -- CreateTable
14 | CREATE TABLE "Order" (
15 |     "id" TEXT NOT NULL,
16 |     "userId" TEXT NOT NULL,
17 |     "amount" DOUBLE PRECISION NOT NULL,
18 |     "Signature" TEXT NOT NULL,
19 |     "paymentStatus" TEXT NOT NULL,
20 | 
21 |     CONSTRAINT "Order_pkey" PRIMARY KEY ("id")
22 | );
23 | 
24 | -- CreateTable
25 | CREATE TABLE "PartialKey" (
26 |     "id" TEXT NOT NULL,
27 |     "userId" TEXT NOT NULL,
28 |     "key" TEXT NOT NULL,
29 | 
30 |     CONSTRAINT "PartialKey_pkey" PRIMARY KEY ("id")
31 | );
32 | 
33 | -- CreateTable
34 | CREATE TABLE "Inventory" (
35 |     "id" TEXT NOT NULL,
36 |     "name" TEXT NOT NULL,
37 |     "price" DOUBLE PRECISION NOT NULL,
38 |     "stock" INTEGER NOT NULL,
39 |     "image" TEXT NOT NULL,
40 | 
41 |     CONSTRAINT "Inventory_pkey" PRIMARY KEY ("id")
42 | );
43 | 
44 | -- CreateIndex
45 | CREATE UNIQUE INDEX "User_username_key" ON "User"("username");
46 | 
47 | -- AddForeignKey
48 | ALTER TABLE "Order" ADD CONSTRAINT "Order_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
49 | 
50 | -- AddForeignKey
51 | ALTER TABLE "PartialKey" ADD CONSTRAINT "PartialKey_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
52 | 


--------------------------------------------------------------------------------
/components/ui/button.tsx:
--------------------------------------------------------------------------------
 1 | import * as React from "react"
 2 | import { Slot } from "@radix-ui/react-slot"
 3 | import { cva, type VariantProps } from "class-variance-authority"
 4 | 
 5 | import { cn } from "@/lib/utils"
 6 | 
 7 | const buttonVariants = cva(
 8 |   "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
 9 |   {
10 |     variants: {
11 |       variant: {
12 |         default:
13 |           "bg-primary text-primary-foreground shadow-xs hover:bg-primary/90",
14 |         destructive:
15 |           "bg-destructive text-white shadow-xs hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
16 |         outline:
17 |           "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
18 |         secondary:
19 |           "bg-secondary text-secondary-foreground shadow-xs hover:bg-secondary/80",
20 |         ghost:
21 |           "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
22 |         link: "text-primary underline-offset-4 hover:underline",
23 |       },
24 |       size: {
25 |         default: "h-9 px-4 py-2 has-[>svg]:px-3",
26 |         sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
27 |         lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
28 |         icon: "size-9",
29 |       },
30 |     },
31 |     defaultVariants: {
32 |       variant: "default",
33 |       size: "default",
34 |     },
35 |   }
36 | )
37 | 
38 | function Button({
39 |   className,
40 |   variant,
41 |   size,
42 |   asChild = false,
43 |   ...props
44 | }: React.ComponentProps<"button"> &
45 |   VariantProps<typeof buttonVariants> & {
46 |     asChild?: boolean
47 |   }) {
48 |   const Comp = asChild ? Slot : "button"
49 | 
50 |   return (
51 |     <Comp
52 |       data-slot="button"
53 |       className={cn(buttonVariants({ variant, size, className }))}
54 |       {...props}
55 |     />
56 |   )
57 | }
58 | 
59 | export { Button, buttonVariants }
60 | 


--------------------------------------------------------------------------------
/components/ui/card.tsx:
--------------------------------------------------------------------------------
 1 | import * as React from "react"
 2 | 
 3 | import { cn } from "@/lib/utils"
 4 | 
 5 | function Card({ className, ...props }: React.ComponentProps<"div">) {
 6 |   return (
 7 |     <div
 8 |       data-slot="card"
 9 |       className={cn(
10 |         "bg-card text-card-foreground flex flex-col gap-6 rounded-xl border py-6 shadow-sm",
11 |         className
12 |       )}
13 |       {...props}
14 |     />
15 |   )
16 | }
17 | 
18 | function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
19 |   return (
20 |     <div
21 |       data-slot="card-header"
22 |       className={cn(
23 |         "@container/card-header grid auto-rows-min grid-rows-[auto_auto] items-start gap-1.5 px-6 has-data-[slot=card-action]:grid-cols-[1fr_auto] [.border-b]:pb-6",
24 |         className
25 |       )}
26 |       {...props}
27 |     />
28 |   )
29 | }
30 | 
31 | function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
32 |   return (
33 |     <div
34 |       data-slot="card-title"
35 |       className={cn("leading-none font-semibold", className)}
36 |       {...props}
37 |     />
38 |   )
39 | }
40 | 
41 | function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
42 |   return (
43 |     <div
44 |       data-slot="card-description"
45 |       className={cn("text-muted-foreground text-sm", className)}
46 |       {...props}
47 |     />
48 |   )
49 | }
50 | 
51 | function CardAction({ className, ...props }: React.ComponentProps<"div">) {
52 |   return (
53 |     <div
54 |       data-slot="card-action"
55 |       className={cn(
56 |         "col-start-2 row-span-2 row-start-1 self-start justify-self-end",
57 |         className
58 |       )}
59 |       {...props}
60 |     />
61 |   )
62 | }
63 | 
64 | function CardContent({ className, ...props }: React.ComponentProps<"div">) {
65 |   return (
66 |     <div
67 |       data-slot="card-content"
68 |       className={cn("px-6", className)}
69 |       {...props}
70 |     />
71 |   )
72 | }
73 | 
74 | function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
75 |   return (
76 |     <div
77 |       data-slot="card-footer"
78 |       className={cn("flex items-center px-6 [.border-t]:pt-6", className)}
79 |       {...props}
80 |     />
81 |   )
82 | }
83 | 
84 | export {
85 |   Card,
86 |   CardHeader,
87 |   CardFooter,
88 |   CardTitle,
89 |   CardAction,
90 |   CardDescription,
91 |   CardContent,
92 | }
93 | 


--------------------------------------------------------------------------------
/app/page.tsx:
--------------------------------------------------------------------------------
 1 | 
 2 | 'use client'
 3 | import React, { useEffect, useState } from 'react';
 4 | import Navbar from './components/Navbar';
 5 | import ProductCard from './components/ProductCard';
 6 | import axios from 'axios';
 7 | 
 8 | type Inventory = {
 9 |   id: string;
10 |   name: string;
11 |   price: number;
12 |   stock: number;
13 |   image: string;
14 | }
15 | 
16 | const Home = () => {
17 |     const [inventory, setInventory] = useState<Inventory[]>([]);
18 | 
19 |   useEffect(() => {
20 |     getInventory();
21 |   }, []);
22 | 
23 |   async function getInventory() {
24 | 
25 |     const response = await axios.get('/api/inventory/')
26 |     const inventory: Inventory[] = response.data.data;
27 |     setInventory(inventory);
28 |   }
29 | 
30 |   return (
31 |     <div className="min-h-screen bg-gradient-to-br from-gray-900 via-black to-gray-900">
32 |       <Navbar />
33 | 
34 |       <div className="bg-gradient-to-r from-gray-800/20 to-gray-900/20 py-12">
35 |         <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 text-center">
36 |           <h1 className="text-4xl md:text-6xl font-bold text-white mb-4">
37 |             Welcome to{' '}
38 |             <span className="bg-gradient-to-r from-gray-300 to-white bg-clip-text text-transparent">
39 |               SolanaStore
40 |             </span>
41 |           </h1>
42 |           <p className="text-xl text-gray-300 mb-8">
43 |             Premium Gaming Equipment Powered by Solana
44 |           </p>
45 |         </div>
46 |       </div>
47 | 
48 |       <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
49 |         <div className="mb-6">
50 |           <h2 className="text-2xl font-bold text-white mb-2">Featured Products</h2>
51 |           <p className="text-gray-400">Discover our premium gaming equipment collection</p>
52 |         </div>
53 | 
54 |         <div className="grid gap-6 grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 ">
55 |           {inventory.map((product: Inventory) => (
56 |             <ProductCard key={product.id} product={product} />
57 |           ))}
58 |         </div>
59 | 
60 |         {inventory.length === 0 && (
61 |           <div className="text-center py-12">
62 |             <p className="text-gray-400 text-xl">No products found matching your search.</p>
63 |           </div>
64 |         )}
65 |       </div>
66 | 
67 |       <footer className="bg-gradient-to-r from-gray-900 via-black to-gray-900 border-t border-gray-800/30 py-8">
68 |         <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 text-center">
69 |           <p className="text-gray-400">
70 |             © 2024 SolanaStore. Powered by Solana blockchain technology.
71 |           </p>
72 |         </div>
73 |       </footer>
74 |     </div>
75 |   );
76 | };
77 | 
78 | export default Home;
79 | 


--------------------------------------------------------------------------------
/lib/authConfig.ts:
--------------------------------------------------------------------------------
 1 | /* eslint-disable */
 2 | import prisma from "@/prisma";
 3 | import { Account, Profile, User, Session as NextAuthSession } from "next-auth"; // Import Session from next-auth
 4 | import GoogleProvider from "next-auth/providers/google";
 5 | import { generateMPCWallet } from "./shamir-secret";
 6 | import { JWT } from "next-auth/jwt";
 7 | import { AuthOptions } from "next-auth"; 
 8 | import { addUsertoHelius } from "./addUsertoHelius";
 9 | 
10 | 
11 | export const authConfig: AuthOptions = { 
12 |   providers: [
13 |     GoogleProvider({
14 |       clientId: process.env.GOOGLE_CLIENT_ID ?? "",
15 |       clientSecret: process.env.GOOGLE_CLIENT_SECRET ?? "",
16 |     }),
17 |   ],
18 |   secret: process.env.NEXT_AUTH_SECRET ?? "s3cret",
19 |   callbacks: {
20 |     async session({ session, token }: { session: NextAuthSession; token: JWT }): Promise<NextAuthSession> {
21 |       if (session.user && token.uid && token.pubKey) {
22 |         session.user.uid = token.uid;
23 |         session.user.pubKey = token.pubKey;
24 |       }
25 |       return session;
26 |     },
27 |     async jwt({
28 |       token,
29 |       account,
30 |       profile,
31 |     }: {
32 |       token: JWT;
33 |       account: Account | null;
34 |       profile?: Profile;
35 |     }) {
36 |       if (account?.providerAccountId) { 
37 |           const user = await prisma.user.findFirst({
38 |             where: {
39 |               subId: account.providerAccountId,
40 |             }
41 |           });
42 |           if (user) {
43 |             token.uid = user.id;
44 |             token.pubKey = user.Pubkey; 
45 |           }
46 |       }
47 |       return token;
48 |     },
49 |     async signIn({
50 |       user,
51 |       account,
52 |       profile,
53 |     }: {
54 |       user: User; 
55 |       account: Account | null;
56 |       profile?: Profile;
57 |     }) {
58 |       if (account?.provider === "google") {
59 |         const email = user.email;
60 |         if (!email) {
61 |           return false;
62 |         }
63 |         const existingUser = await prisma.user.findFirst({
64 |           where: {
65 |             username: email,
66 |           },
67 |         });
68 |         if (existingUser) {
69 |           return true;
70 |         }
71 | 
72 |         try {
73 |           const mpcWallet = await generateMPCWallet(email);
74 | 
75 |           await addUsertoHelius(mpcWallet.publicKey);
76 | 
77 |           const createdUser = await prisma.user
78 |             .create({
79 |               data: {
80 |                 username: email,
81 |                 name: profile?.name,
82 |                 subId: account?.providerAccountId,
83 |                 Pubkey: mpcWallet.publicKey,
84 |                 ProfilePicture: profile?.image, 
85 |                 partialKey: mpcWallet.encryptedShare1,
86 |               },
87 |           })
88 |           return true;
89 |         } catch (error) {
90 |           console.error("Failed to create MPC wallet:", error);
91 |           return false;
92 |         }
93 |       }
94 |       return false;
95 |     },
96 |   },
97 | };


--------------------------------------------------------------------------------
/app/components/Navbar.tsx:
--------------------------------------------------------------------------------
 1 | /* eslint-disable */
 2 | import { useState, useEffect } from 'react';
 3 | import { ShoppingCart, LogIn, LogOut } from 'lucide-react';
 4 | import { Button } from '@/components/ui/button';
 5 | import { signIn, signOut, useSession } from 'next-auth/react';
 6 | import { WalletMultiButton } from '@solana/wallet-adapter-react-ui';
 7 | 
 8 | 
 9 | const Navbar = ( ) => {
10 |     const [isScrolled, setIsScrolled] = useState(false);
11 |     const session = useSession();
12 |     const image  = session?.data?.user?.image || "https://imgs.search.brave.com/B1aaBgz_pXUkBvbO88vfuUOU0_ZwfLeMlQuyPZ9tzR8/rs:fit:860:0:0:0/g:ce/aHR0cHM6Ly93YWxs/cGFwZXJzLmNvbS9p/bWFnZXMvaGQvYmFj/ay12aWV3LWdva3Ut/dWx0cmEtaW5zdGlu/Y3QtdTE2ZHBqM3k2/Mmd1eTJwcy5qcGc";
13 | 
14 |   useEffect(() => {
15 |     const handleScroll = () => {
16 |       setIsScrolled(window.scrollY > 0);
17 |     };
18 | 
19 |     window.addEventListener('scroll', handleScroll);
20 |     return () => window.removeEventListener('scroll', handleScroll);
21 |   }, []);
22 | 
23 |   return (
24 |     <nav className={` sticky top-0 z-50 transition-all duration-300 ${
25 |       isScrolled ? 'backdrop-blur-md bg-opacity-80' : 'bg-gradient-to-r from-gray-900 via-black to-gray-900'
26 |     }`}>
27 |       <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
28 |         <div className="flex justify-between items-center h-16">
29 |           {/* Left side */}
30 |           <div className="flex items-center space-x-4">
31 |             <div className="flex items-center space-x-2">
32 |               <img src={image} alt="user" className="h-8 w-8 rounded-full" /><span className='text-zinc-300'>{session?.data?.user?.name}</span>
33 |             </div>
34 |           </div>
35 | 
36 |           {/* Center - Store Name */}
37 |           <div className="flex-1 flex justify-center">
38 |             <h1 className="text-2xl font-bold bg-gradient-to-r from-gray-300 to-white bg-clip-text text-transparent">
39 |               SolanaStore
40 |             </h1>
41 |           </div>
42 | 
43 |           {/* Right side */}
44 |           <div className="flex items-center space-x-4">
45 |             <Button size="sm" className="text-white hover:bg-gray-800/30 cursor-pointer">
46 |               <ShoppingCart className="h-5 w-5" />
47 |             </Button>
48 |             
49 |             {session.data?.user ? (
50 |               <div>
51 |                 
52 |                 <Button
53 |                 onClick={()=>signOut()}
54 |                 size="sm" className="border border-gray-400 text-gray-300 bg-neutral-900 cursor-pointer mr-2.5">
55 |                   <LogOut className="h-4 w-4 mr-2" />
56 |                   Sign Out
57 |                 </Button>
58 |                 <WalletMultiButton />
59 |               </div>
60 |             ) : (
61 |               <Button
62 |                onClick={()=>signIn()}
63 |                 size="sm" className="border border-gray-400 text-gray-300 bg-neutral-900 cursor-pointer">
64 |                 <LogIn className="h-4 w-4 mr-2" />
65 |                 Sign In
66 |               </Button>
67 |             )}
68 |           </div>
69 |         </div>
70 |       </div>
71 |     </nav>
72 |   );
73 | };
74 | 
75 | export default Navbar;


--------------------------------------------------------------------------------
/app/api/helius/route.ts:
--------------------------------------------------------------------------------
 1 | /* eslint-disable  */
 2 | import prisma from '@/prisma';
 3 | import { signTransactionMPC } from '../../../lib/shamir-secret';
 4 | import { NextResponse } from 'next/server';
 5 | import { Connection, PublicKey, SystemProgram, Transaction} from '@solana/web3.js';
 6 | 
 7 | 
 8 | export async function POST(Request: Request) {
 9 |     
10 |     const SOLANA_DEVNET_RPC_URL = "https://api.devnet.solana.com";
11 |     const content = await Request.json();
12 |     const tx = content[0];
13 |     if (tx.meta.err != null) {
14 |         throw new Error("Transaction didnt go through");
15 |     }   
16 | 
17 |     if (!process.env.HOTWALLET_PUBKEY) {
18 |         console.error('Environment variable HOTWALLET_PUBKEY is not set.');
19 |         return NextResponse.json(
20 |             { error: 'Server configuration error: Hot wallet public key is not defined.' },
21 |             { status: 500 }
22 |         );
23 |     }
24 |     try{
25 |         const recipient = tx.transaction.message.accountKeys[1];
26 | 
27 |         const postBalance = tx.meta.postBalances[1];
28 |         const databaseShare = await prisma.user.findFirst({
29 |             where: {
30 |                 Pubkey: recipient
31 |             },
32 |             select:{
33 |                 partialKey: true,
34 |                 username:true,
35 |                 Pubkey: true,
36 |             }
37 |         });
38 | 
39 |         if(!databaseShare){
40 |             return NextResponse.json(
41 |             { message: 'payment going out of the wallet'},
42 |             { status: 200 }
43 |         );
44 |     }
45 | 
46 |     const connection = new Connection(SOLANA_DEVNET_RPC_URL);
47 | 
48 |     const { blockhash, lastValidBlockHeight } = await connection.getLatestBlockhash();
49 | 
50 |     const transaction = new Transaction
51 |     transaction.recentBlockhash = blockhash;
52 |     transaction.lastValidBlockHeight = lastValidBlockHeight;
53 |     transaction.feePayer = new PublicKey(recipient);
54 | 
55 |     const fromPubkey = new PublicKey(recipient);
56 |     const toPubkey = new PublicKey(process.env.HOTWALLET_PUBKEY as string);
57 | 
58 |     const amountToTransferLamports = postBalance - 100000000;
59 | 
60 |         transaction.add(
61 |         SystemProgram.transfer({
62 |             fromPubkey: fromPubkey,
63 |             toPubkey: toPubkey,
64 |             lamports: amountToTransferLamports,
65 |         })
66 |     );
67 | 
68 |     if(databaseShare.partialKey == null){
69 |         throw new Error("Database share not found");
70 |     }
71 | 
72 |     const signedTransaction = await signTransactionMPC(databaseShare.username, transaction, databaseShare.partialKey);
73 | 
74 |     const serializedTransaction = signedTransaction.serialize();
75 | 
76 |     const txid = await connection.sendRawTransaction(serializedTransaction, {
77 |         skipPreflight: false,
78 |     });
79 | 
80 |     return NextResponse.json(
81 |         { message: 'Webhook payload processed', txid: txid },
82 |         { status: 200 }
83 |     );
84 | 
85 |     }catch(error){
86 |         console.error("Error processing Helius webhook:", error);
87 |         return NextResponse.json(
88 |             { error: 'Failed to process webhook payload', details: error || 'An unknown error occurred' },
89 |             { status: 500 }
90 |         );
91 |     }
92 | }
93 | 


--------------------------------------------------------------------------------
/app/globals.css:
--------------------------------------------------------------------------------
  1 | @import "tailwindcss";
  2 | @import "tw-animate-css";
  3 | 
  4 | @custom-variant dark (&:is(.dark *));
  5 | 
  6 | @theme inline {
  7 |   --color-background: var(--background);
  8 |   --color-foreground: var(--foreground);
  9 |   --font-sans: var(--font-geist-sans);
 10 |   --font-mono: var(--font-geist-mono);
 11 |   --color-sidebar-ring: var(--sidebar-ring);
 12 |   --color-sidebar-border: var(--sidebar-border);
 13 |   --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
 14 |   --color-sidebar-accent: var(--sidebar-accent);
 15 |   --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
 16 |   --color-sidebar-primary: var(--sidebar-primary);
 17 |   --color-sidebar-foreground: var(--sidebar-foreground);
 18 |   --color-sidebar: var(--sidebar);
 19 |   --color-chart-5: var(--chart-5);
 20 |   --color-chart-4: var(--chart-4);
 21 |   --color-chart-3: var(--chart-3);
 22 |   --color-chart-2: var(--chart-2);
 23 |   --color-chart-1: var(--chart-1);
 24 |   --color-ring: var(--ring);
 25 |   --color-input: var(--input);
 26 |   --color-border: var(--border);
 27 |   --color-destructive: var(--destructive);
 28 |   --color-accent-foreground: var(--accent-foreground);
 29 |   --color-accent: var(--accent);
 30 |   --color-muted-foreground: var(--muted-foreground);
 31 |   --color-muted: var(--muted);
 32 |   --color-secondary-foreground: var(--secondary-foreground);
 33 |   --color-secondary: var(--secondary);
 34 |   --color-primary-foreground: var(--primary-foreground);
 35 |   --color-primary: var(--primary);
 36 |   --color-popover-foreground: var(--popover-foreground);
 37 |   --color-popover: var(--popover);
 38 |   --color-card-foreground: var(--card-foreground);
 39 |   --color-card: var(--card);
 40 |   --radius-sm: calc(var(--radius) - 4px);
 41 |   --radius-md: calc(var(--radius) - 2px);
 42 |   --radius-lg: var(--radius);
 43 |   --radius-xl: calc(var(--radius) + 4px);
 44 | }
 45 | 
 46 | :root {
 47 |   --radius: 0.625rem;
 48 |   --background: oklch(1 0 0);
 49 |   --foreground: oklch(0.145 0 0);
 50 |   --card: oklch(1 0 0);
 51 |   --card-foreground: oklch(0.145 0 0);
 52 |   --popover: oklch(1 0 0);
 53 |   --popover-foreground: oklch(0.145 0 0);
 54 |   --primary: oklch(0.205 0 0);
 55 |   --primary-foreground: oklch(0.985 0 0);
 56 |   --secondary: oklch(0.97 0 0);
 57 |   --secondary-foreground: oklch(0.205 0 0);
 58 |   --muted: oklch(0.97 0 0);
 59 |   --muted-foreground: oklch(0.556 0 0);
 60 |   --accent: oklch(0.97 0 0);
 61 |   --accent-foreground: oklch(0.205 0 0);
 62 |   --destructive: oklch(0.577 0.245 27.325);
 63 |   --border: oklch(0.922 0 0);
 64 |   --input: oklch(0.922 0 0);
 65 |   --ring: oklch(0.708 0 0);
 66 |   --chart-1: oklch(0.646 0.222 41.116);
 67 |   --chart-2: oklch(0.6 0.118 184.704);
 68 |   --chart-3: oklch(0.398 0.07 227.392);
 69 |   --chart-4: oklch(0.828 0.189 84.429);
 70 |   --chart-5: oklch(0.769 0.188 70.08);
 71 |   --sidebar: oklch(0.985 0 0);
 72 |   --sidebar-foreground: oklch(0.145 0 0);
 73 |   --sidebar-primary: oklch(0.205 0 0);
 74 |   --sidebar-primary-foreground: oklch(0.985 0 0);
 75 |   --sidebar-accent: oklch(0.97 0 0);
 76 |   --sidebar-accent-foreground: oklch(0.205 0 0);
 77 |   --sidebar-border: oklch(0.922 0 0);
 78 |   --sidebar-ring: oklch(0.708 0 0);
 79 | }
 80 | 
 81 | .dark {
 82 |   --background: oklch(0.145 0 0);
 83 |   --foreground: oklch(0.985 0 0);
 84 |   --card: oklch(0.205 0 0);
 85 |   --card-foreground: oklch(0.985 0 0);
 86 |   --popover: oklch(0.205 0 0);
 87 |   --popover-foreground: oklch(0.985 0 0);
 88 |   --primary: oklch(0.922 0 0);
 89 |   --primary-foreground: oklch(0.205 0 0);
 90 |   --secondary: oklch(0.269 0 0);
 91 |   --secondary-foreground: oklch(0.985 0 0);
 92 |   --muted: oklch(0.269 0 0);
 93 |   --muted-foreground: oklch(0.708 0 0);
 94 |   --accent: oklch(0.269 0 0);
 95 |   --accent-foreground: oklch(0.985 0 0);
 96 |   --destructive: oklch(0.704 0.191 22.216);
 97 |   --border: oklch(1 0 0 / 10%);
 98 |   --input: oklch(1 0 0 / 15%);
 99 |   --ring: oklch(0.556 0 0);
100 |   --chart-1: oklch(0.488 0.243 264.376);
101 |   --chart-2: oklch(0.696 0.17 162.48);
102 |   --chart-3: oklch(0.769 0.188 70.08);
103 |   --chart-4: oklch(0.627 0.265 303.9);
104 |   --chart-5: oklch(0.645 0.246 16.439);
105 |   --sidebar: oklch(0.205 0 0);
106 |   --sidebar-foreground: oklch(0.985 0 0);
107 |   --sidebar-primary: oklch(0.488 0.243 264.376);
108 |   --sidebar-primary-foreground: oklch(0.985 0 0);
109 |   --sidebar-accent: oklch(0.269 0 0);
110 |   --sidebar-accent-foreground: oklch(0.985 0 0);
111 |   --sidebar-border: oklch(1 0 0 / 10%);
112 |   --sidebar-ring: oklch(0.556 0 0);
113 | }
114 | 
115 | @layer base {
116 |   * {
117 |     @apply border-border outline-ring/50;
118 |   }
119 |   body {
120 |     @apply bg-background text-foreground;
121 |   }
122 | }
123 | 


--------------------------------------------------------------------------------
/app/components/ProductCard.tsx:
--------------------------------------------------------------------------------
  1 | "use client";
  2 | 
  3 | import { ShoppingCart, Star } from 'lucide-react';
  4 | import { Button } from '@/components/ui/button';
  5 | import { Card, CardContent } from '@/components/ui/card';
  6 | import axios from 'axios';
  7 | import { useState, useCallback } from 'react';
  8 | import { Connection, PublicKey, SystemProgram, Transaction } from '@solana/web3.js';
  9 | import { useSession } from 'next-auth/react';
 10 | import { useWallet } from '@solana/wallet-adapter-react';
 11 | 
 12 | interface Product {
 13 |   id: string;
 14 |   name: string;
 15 |   price: number;
 16 |   stock: number;
 17 |   image: string;
 18 | }
 19 | 
 20 | interface ProductCardProps {
 21 |   product: Product;
 22 | }
 23 | 
 24 | const ProductCard = ({ product }: ProductCardProps) => {
 25 |   const [isBuying, setIsBuying] = useState(false);
 26 |   const session = useSession();
 27 |   const { wallet, connected }= useWallet();
 28 |   
 29 | 
 30 |   const handleBuy = useCallback(async (productPrice: number) => {
 31 |     if(!session.data?.user?.pubKey) {
 32 |       return;
 33 |     }
 34 |     if (!connected || !wallet?.adapter.publicKey) {
 35 |           return;
 36 |       }
 37 |     setIsBuying(true);
 38 |     try {
 39 |       const connection = new Connection("https://api.devnet.solana.com");
 40 |       const transaction = new Transaction().add(
 41 |           SystemProgram.transfer({
 42 |               fromPubkey: wallet.adapter.publicKey,
 43 |               toPubkey: new PublicKey(session.data?.user?.pubKey??""),
 44 |               lamports:Number(productPrice) * 1000000000
 45 |           })
 46 |       );
 47 |       
 48 |       const latestBlockHash = await connection.getLatestBlockhash();
 49 |       transaction.recentBlockhash = latestBlockHash.blockhash;
 50 |       transaction.lastValidBlockHeight = latestBlockHash.lastValidBlockHeight;
 51 |       transaction.feePayer = wallet.adapter.publicKey;
 52 |       const tx = await wallet.adapter.sendTransaction(transaction, connection,{
 53 |         preflightCommitment: "confirmed",
 54 |       });
 55 |       const confirmation = await connection.confirmTransaction({
 56 |           signature: tx,
 57 |           blockhash: latestBlockHash.blockhash,
 58 |           lastValidBlockHeight: latestBlockHash.lastValidBlockHeight,
 59 |       }, "confirmed");
 60 |       if(confirmation.value.err == null){
 61 |         alert("Transaction successful");
 62 |         axios.post('/api/buy/', {
 63 |           productId: product.id,
 64 |           signature: confirmation.context.slot.toString(),
 65 |           productprice: productPrice
 66 |         });
 67 |       }
 68 | 
 69 |     } catch (error) {
 70 |       console.error('Error buying product:', error);
 71 |     } finally {
 72 |       setIsBuying(false);
 73 |     }
 74 |   }, [product.id]);
 75 | 
 76 |   return (
 77 |     <Card className="bg-gradient-to-br from-gray-900 to-black border-gray-800/30 hover:border-gray-600/50 transition-all duration-300 hover:shadow-lg hover:shadow-gray-500/20 overflow-hidden">
 78 |       <div className="aspect-square overflow-hidden">
 79 |         <img
 80 |           src={product.image}
 81 |           alt={product.name}
 82 |           className="w-full h-full object-cover hover:scale-105 transition-transform duration-300"
 83 |         />
 84 |       </div>
 85 | 
 86 |       <CardContent className="p-4">
 87 |         <div className="flex items-center justify-between mb-2">
 88 |           <div className="flex items-center space-x-1">
 89 |             {[1, 2, 3, 4, 5].map((star) => (
 90 |               <Star key={star} className="h-4 w-4 fill-yellow-400 text-yellow-400" />
 91 |             ))}
 92 |           </div>
 93 |           <span className="text-sm text-gray-400">(50 reviews)</span>
 94 |         </div>
 95 | 
 96 |         <h3 className="text-white font-semibold text-lg mb-2 line-clamp-2">
 97 |           {product.name}
 98 |         </h3>
 99 | 
100 |         <div className="flex items-center justify-between mb-3">
101 |           <span className="text-2xl font-bold bg-gradient-to-r from-gray-300 to-white bg-clip-text text-transparent">
102 |             ${product.price.toFixed(5)}
103 |           </span>
104 |           <span className="text-sm text-gray-400">
105 |             Stock: {product.stock}
106 |           </span>
107 |         </div>
108 | 
109 |         <Button
110 |           className="w-full bg-gradient-to-r from-gray-700 to-gray-800 hover:from-gray-600 hover:to-gray-700 text-white font-medium cursor-pointer"
111 |           onClick={async()=>handleBuy(product.price)}
112 |           disabled={product.stock === 0 || isBuying}
113 |         >
114 |           {isBuying ? (
115 |             'Processing...'
116 |           ) : (
117 |             <>
118 |               <ShoppingCart className="h-4 w-4 mr-2" />
119 |               {product.stock === 0 ? 'Out of Stock' : 'Buy Now'}
120 |             </>
121 |           )}
122 |         </Button>
123 |       </CardContent>
124 |     </Card>
125 |   );
126 | };
127 | 
128 | export default ProductCard;


--------------------------------------------------------------------------------
/components/ui/select.tsx:
--------------------------------------------------------------------------------
  1 | "use client"
  2 | 
  3 | import * as React from "react"
  4 | import * as SelectPrimitive from "@radix-ui/react-select"
  5 | import { CheckIcon, ChevronDownIcon, ChevronUpIcon } from "lucide-react"
  6 | 
  7 | import { cn } from "@/lib/utils"
  8 | 
  9 | function Select({
 10 |   ...props
 11 | }: React.ComponentProps<typeof SelectPrimitive.Root>) {
 12 |   return <SelectPrimitive.Root data-slot="select" {...props} />
 13 | }
 14 | 
 15 | function SelectGroup({
 16 |   ...props
 17 | }: React.ComponentProps<typeof SelectPrimitive.Group>) {
 18 |   return <SelectPrimitive.Group data-slot="select-group" {...props} />
 19 | }
 20 | 
 21 | function SelectValue({
 22 |   ...props
 23 | }: React.ComponentProps<typeof SelectPrimitive.Value>) {
 24 |   return <SelectPrimitive.Value data-slot="select-value" {...props} />
 25 | }
 26 | 
 27 | function SelectTrigger({
 28 |   className,
 29 |   size = "default",
 30 |   children,
 31 |   ...props
 32 | }: React.ComponentProps<typeof SelectPrimitive.Trigger> & {
 33 |   size?: "sm" | "default"
 34 | }) {
 35 |   return (
 36 |     <SelectPrimitive.Trigger
 37 |       data-slot="select-trigger"
 38 |       data-size={size}
 39 |       className={cn(
 40 |         "border-input data-[placeholder]:text-muted-foreground [&_svg:not([class*='text-'])]:text-muted-foreground focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 dark:hover:bg-input/50 flex w-fit items-center justify-between gap-2 rounded-md border bg-transparent px-3 py-2 text-sm whitespace-nowrap shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 data-[size=default]:h-9 data-[size=sm]:h-8 *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-2 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
 41 |         className
 42 |       )}
 43 |       {...props}
 44 |     >
 45 |       {children}
 46 |       <SelectPrimitive.Icon asChild>
 47 |         <ChevronDownIcon className="size-4 opacity-50" />
 48 |       </SelectPrimitive.Icon>
 49 |     </SelectPrimitive.Trigger>
 50 |   )
 51 | }
 52 | 
 53 | function SelectContent({
 54 |   className,
 55 |   children,
 56 |   position = "popper",
 57 |   ...props
 58 | }: React.ComponentProps<typeof SelectPrimitive.Content>) {
 59 |   return (
 60 |     <SelectPrimitive.Portal>
 61 |       <SelectPrimitive.Content
 62 |         data-slot="select-content"
 63 |         className={cn(
 64 |           "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 relative z-50 max-h-(--radix-select-content-available-height) min-w-[8rem] origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border shadow-md",
 65 |           position === "popper" &&
 66 |             "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1",
 67 |           className
 68 |         )}
 69 |         position={position}
 70 |         {...props}
 71 |       >
 72 |         <SelectScrollUpButton />
 73 |         <SelectPrimitive.Viewport
 74 |           className={cn(
 75 |             "p-1",
 76 |             position === "popper" &&
 77 |               "h-[var(--radix-select-trigger-height)] w-full min-w-[var(--radix-select-trigger-width)] scroll-my-1"
 78 |           )}
 79 |         >
 80 |           {children}
 81 |         </SelectPrimitive.Viewport>
 82 |         <SelectScrollDownButton />
 83 |       </SelectPrimitive.Content>
 84 |     </SelectPrimitive.Portal>
 85 |   )
 86 | }
 87 | 
 88 | function SelectLabel({
 89 |   className,
 90 |   ...props
 91 | }: React.ComponentProps<typeof SelectPrimitive.Label>) {
 92 |   return (
 93 |     <SelectPrimitive.Label
 94 |       data-slot="select-label"
 95 |       className={cn("text-muted-foreground px-2 py-1.5 text-xs", className)}
 96 |       {...props}
 97 |     />
 98 |   )
 99 | }
100 | 
101 | function SelectItem({
102 |   className,
103 |   children,
104 |   ...props
105 | }: React.ComponentProps<typeof SelectPrimitive.Item>) {
106 |   return (
107 |     <SelectPrimitive.Item
108 |       data-slot="select-item"
109 |       className={cn(
110 |         "focus:bg-accent focus:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground relative flex w-full cursor-default items-center gap-2 rounded-sm py-1.5 pr-8 pl-2 text-sm outline-hidden select-none data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
111 |         className
112 |       )}
113 |       {...props}
114 |     >
115 |       <span className="absolute right-2 flex size-3.5 items-center justify-center">
116 |         <SelectPrimitive.ItemIndicator>
117 |           <CheckIcon className="size-4" />
118 |         </SelectPrimitive.ItemIndicator>
119 |       </span>
120 |       <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
121 |     </SelectPrimitive.Item>
122 |   )
123 | }
124 | 
125 | function SelectSeparator({
126 |   className,
127 |   ...props
128 | }: React.ComponentProps<typeof SelectPrimitive.Separator>) {
129 |   return (
130 |     <SelectPrimitive.Separator
131 |       data-slot="select-separator"
132 |       className={cn("bg-border pointer-events-none -mx-1 my-1 h-px", className)}
133 |       {...props}
134 |     />
135 |   )
136 | }
137 | 
138 | function SelectScrollUpButton({
139 |   className,
140 |   ...props
141 | }: React.ComponentProps<typeof SelectPrimitive.ScrollUpButton>) {
142 |   return (
143 |     <SelectPrimitive.ScrollUpButton
144 |       data-slot="select-scroll-up-button"
145 |       className={cn(
146 |         "flex cursor-default items-center justify-center py-1",
147 |         className
148 |       )}
149 |       {...props}
150 |     >
151 |       <ChevronUpIcon className="size-4" />
152 |     </SelectPrimitive.ScrollUpButton>
153 |   )
154 | }
155 | 
156 | function SelectScrollDownButton({
157 |   className,
158 |   ...props
159 | }: React.ComponentProps<typeof SelectPrimitive.ScrollDownButton>) {
160 |   return (
161 |     <SelectPrimitive.ScrollDownButton
162 |       data-slot="select-scroll-down-button"
163 |       className={cn(
164 |         "flex cursor-default items-center justify-center py-1",
165 |         className
166 |       )}
167 |       {...props}
168 |     >
169 |       <ChevronDownIcon className="size-4" />
170 |     </SelectPrimitive.ScrollDownButton>
171 |   )
172 | }
173 | 
174 | export {
175 |   Select,
176 |   SelectContent,
177 |   SelectGroup,
178 |   SelectItem,
179 |   SelectLabel,
180 |   SelectScrollDownButton,
181 |   SelectScrollUpButton,
182 |   SelectSeparator,
183 |   SelectTrigger,
184 |   SelectValue,
185 | }
186 | 


--------------------------------------------------------------------------------
/lib/shamir-secret.ts:
--------------------------------------------------------------------------------
  1 | /* eslint-disable @typescript-eslint/no-unused-vars */
  2 | import { Keypair, PublicKey, Transaction } from "@solana/web3.js";
  3 | import * as sss from "shamirs-secret-sharing";
  4 | import CryptoJS from "crypto-js";
  5 | import { Redis } from '@upstash/redis'
  6 | 
  7 | 
  8 | const MPC_CONFIG = {
  9 |   THRESHOLD: 3,
 10 |   TOTAL_SHARES: 3,
 11 |   ENCRYPTION_KEY:
 12 |     process.env.MPC_ENCRYPTION_KEY || "default-key-change-in-production",
 13 |   REDIS_URL_1: process.env.REDIS_URL_1 ,
 14 |   REDIS_URL_2: process.env.REDIS_URL_2 ,
 15 |   REDIS_TOKEN_1: process.env.REDIS_TOKEN_1 ,
 16 |   REDIS_TOKEN_2: process.env.REDIS_TOKEN_2 ,
 17 |   SHARE_TTL_DAYS: 30,
 18 |   ROTATION_WARNING_DAYS: 7,
 19 | };
 20 | 
 21 | const redis1 = new Redis({url:MPC_CONFIG.REDIS_URL_1, token:MPC_CONFIG.REDIS_TOKEN_1});
 22 | const redis2 = new Redis({url:MPC_CONFIG.REDIS_URL_2, token:MPC_CONFIG.REDIS_TOKEN_2});
 23 | 
 24 | export interface KeyShare {
 25 |   shareIndex: number;
 26 |   shareData: string;
 27 |   publicKey: string;
 28 |   expiresAt?: Date;
 29 | }
 30 | 
 31 | export interface MPCWallet {
 32 |   publicKey: string;
 33 |   encryptedShare1: string; // PostgreSQL database storage
 34 |   encryptedShare2: string; // Redis 1 storage
 35 |   encryptedShare3?: string; // Redis 2 storage
 36 |   shareIndices: number[];
 37 | }
 38 | 
 39 | function encryptData(data: string, key: string): string {
 40 |   return CryptoJS.AES.encrypt(data, key).toString();
 41 | }
 42 | 
 43 | function decryptData(encryptedData: string, key: string): string {
 44 |   const bytes = CryptoJS.AES.decrypt(encryptedData, key);
 45 |   return bytes.toString(CryptoJS.enc.Utf8);
 46 | }
 47 | 
 48 | export async function checkShareExpiration(userId: string): Promise<{
 49 |   needsRotation: boolean;
 50 |   daysUntilExpiry: number;
 51 |   missingShares: string[];
 52 | }> {
 53 |   const redisKey2 = `mpc:share:${userId}:2`;
 54 |   const redisKey3 = `mpc:share:${userId}:3`;
 55 | 
 56 |   const missingShares: string[] = [];
 57 |   let minTTL = Infinity;
 58 | 
 59 |   try {
 60 |     const ttl2 = await redis1.ttl(redisKey2);
 61 |     if (ttl2 === -2) {
 62 |       missingShares.push("share2");
 63 |     } else if (ttl2 > 0) {
 64 |       minTTL = Math.min(minTTL, ttl2);
 65 |     }
 66 | 
 67 |     const ttl3 = await redis2.ttl(redisKey3);
 68 |     if (ttl3 === -2) {
 69 |       missingShares.push("share3");
 70 |     } else if (ttl3 > 0) {
 71 |       minTTL = Math.min(minTTL, ttl3);
 72 |     }
 73 | 
 74 |     const daysUntilExpiry =
 75 |       minTTL === Infinity ? 0 : Math.floor(minTTL / (24 * 60 * 60));
 76 |     const needsRotation =
 77 |       daysUntilExpiry <= MPC_CONFIG.ROTATION_WARNING_DAYS ||
 78 |       missingShares.length > 0;
 79 | 
 80 |     return {
 81 |       needsRotation,
 82 |       daysUntilExpiry,
 83 |       missingShares,
 84 |     };
 85 |   } catch (error) {
 86 |     console.error("Error checking share expiration:", error);
 87 |     return {
 88 |       needsRotation: true,
 89 |       daysUntilExpiry: 0,
 90 |       missingShares: ["share2", "share3"],
 91 |     };
 92 |   }
 93 | }
 94 | 
 95 | export async function recoverMissingShares(
 96 |   userId: string,
 97 |   databaseShare: string
 98 | ): Promise<{ share2: string; share3: string }> {
 99 | 
100 |   try {
101 |     const redisKey2 = `mpc:share:${userId}:2`;
102 |     const redisKey3 = `mpc:share:${userId}:3`;
103 | 
104 |     const availableShares: Buffer[] = [];
105 | 
106 |     const decryptedShare1 = decryptData(
107 |       databaseShare,
108 |       MPC_CONFIG.ENCRYPTION_KEY
109 |     );
110 |     availableShares.push(Buffer.from(decryptedShare1, "hex"));
111 | 
112 |     try {
113 |       const encryptedShare2 = await redis1.get<string>(redisKey2);
114 |       if (encryptedShare2) {
115 |         const decryptedShare2 = decryptData(
116 |           encryptedShare2,
117 |           MPC_CONFIG.ENCRYPTION_KEY
118 |         );
119 |         availableShares.push(Buffer.from(decryptedShare2, "hex"));
120 |       }
121 |     } catch (error) {
122 |       console.warn("Could not retrieve share 2:", error);
123 |     }
124 | 
125 |     try {
126 |       const encryptedShare3 = await redis2.get<string>(redisKey3);
127 |       if (encryptedShare3) {
128 |         const decryptedShare3 = decryptData(
129 |           encryptedShare3,
130 |           MPC_CONFIG.ENCRYPTION_KEY
131 |         );
132 |         availableShares.push(Buffer.from(decryptedShare3, "hex"));
133 |       }
134 |     } catch (error) {
135 |       console.warn("Could not retrieve share 3:", error);
136 |     }
137 | 
138 |     if (availableShares.length < 3) {
139 |       throw new Error(
140 |         `Cannot recover - only ${availableShares.length} shares available, need 3`
141 |       );
142 |     }
143 | 
144 |     const privateKey = sss.combine(availableShares);
145 | 
146 |     const newShares = sss.split(privateKey, {
147 |       shares: MPC_CONFIG.TOTAL_SHARES,
148 |       threshold: MPC_CONFIG.THRESHOLD,
149 |     });
150 | 
151 |     const encryptedShare2 = encryptData(
152 |       newShares[1].toString("hex"),
153 |       MPC_CONFIG.ENCRYPTION_KEY
154 |     );
155 |     const encryptedShare3 = encryptData(
156 |       newShares[2].toString("hex"),
157 |       MPC_CONFIG.ENCRYPTION_KEY
158 |     );
159 | 
160 |     privateKey.fill(0);
161 | 
162 |     return {
163 |       share2: encryptedShare2,
164 |       share3: encryptedShare3,
165 |     };
166 |   } catch (error) {
167 |     console.error("Failed to recover missing shares:", error);
168 |     throw new Error(
169 |       "Share recovery failed - wallet may be permanently inaccessible"
170 |     );
171 |   }
172 | }
173 | 
174 | export async function ensureShareAvailability(
175 |   userId: string,
176 |   databaseShare: string
177 | ): Promise<boolean> {
178 |   try {
179 |     const status = await checkShareExpiration(userId);
180 | 
181 |     if (!status.needsRotation && status.missingShares.length === 0) {
182 |       return true; 
183 |     }
184 | 
185 | 
186 |     const recoveredShares = await recoverMissingShares(userId, databaseShare);
187 | 
188 |     const ttlSeconds = MPC_CONFIG.SHARE_TTL_DAYS * 24 * 60 * 60;
189 | 
190 |     const redisKey2 = `mpc:share:${userId}:2`;
191 |     const redisKey3 = `mpc:share:${userId}:3`;
192 | 
193 |     await redis1.setex(redisKey2, ttlSeconds, recoveredShares.share2);
194 |     await redis2.setex(redisKey3, ttlSeconds, recoveredShares.share3);
195 | 
196 |     return true;
197 |   } catch (error) {
198 |     console.error(
199 |       `Failed to ensure share availability for user ${userId}:`,
200 |       error
201 |     );
202 |     return false;
203 |   }
204 | }
205 | 
206 | export async function generateMPCWallet(userId: string): Promise<MPCWallet> {
207 |   const keypair = Keypair.generate();
208 |   const privateKeyBytes = keypair.secretKey;
209 |   const publicKey = keypair.publicKey.toBase58();
210 | 
211 |   const shares = sss.split(Buffer.from(privateKeyBytes), {
212 |     shares: MPC_CONFIG.TOTAL_SHARES,
213 |     threshold: MPC_CONFIG.THRESHOLD,
214 |   });
215 | 
216 |   const encryptedShares = shares.map((share, index) => ({
217 |     shareIndex: index + 1,
218 |     shareData: encryptData(share.toString("hex"), MPC_CONFIG.ENCRYPTION_KEY),
219 |     publicKey,
220 |   }));
221 | 
222 |   const ttlSeconds = MPC_CONFIG.SHARE_TTL_DAYS * 24 * 60 * 60;
223 |   const redisKey2 = `mpc:share:${userId}:2`;
224 |   await redis1.setex(redisKey2, ttlSeconds, encryptedShares[1].shareData);
225 | 
226 |   const redisKey3 = `mpc:share:${userId}:3`;
227 |   await redis2.setex(redisKey3, ttlSeconds, encryptedShares[2].shareData);
228 | 
229 |   return {
230 |     publicKey,
231 |     encryptedShare1: encryptedShares[0].shareData, // For database
232 |     encryptedShare2: encryptedShares[1].shareData, // For Redis 1
233 |     encryptedShare3: encryptedShares[2]?.shareData, // For Redis 2
234 |     shareIndices: [1, 2, 3],
235 |   };
236 | }
237 | 
238 | export async function reconstructPrivateKey(
239 |   userId: string,
240 |   share1: string 
241 | ): Promise<Keypair> {
242 |   try {
243 |     const shareAvailable = await ensureShareAvailability(userId, share1);
244 |     if (!shareAvailable) {
245 |       throw new Error(
246 |         "Could not ensure share availability - wallet may be compromised"
247 |       );
248 |     }
249 | 
250 |     const decryptedShare1 = decryptData(share1, MPC_CONFIG.ENCRYPTION_KEY);
251 |     const shareBuffer1 = Buffer.from(decryptedShare1, "hex");
252 | 
253 |     const redisKey2 = `mpc:share:${userId}:2`;
254 |     const encryptedShare2 = await redis1.get<string>(redisKey2);
255 | 
256 |     if (!encryptedShare2) {
257 |       throw new Error(
258 |         "Share 2 not found in Redis 1 - automatic recovery failed"
259 |       );
260 |     }
261 | 
262 |     const decryptedShare2 = decryptData(
263 |       encryptedShare2,
264 |       MPC_CONFIG.ENCRYPTION_KEY
265 |     );
266 |     const shareBuffer2 = Buffer.from(decryptedShare2, "hex");
267 | 
268 |     const redisKey3 = `mpc:share:${userId}:3`;
269 |     const encryptedShare3 = await redis2.get<string>(redisKey3);
270 | 
271 |     if (!encryptedShare3) {
272 |       throw new Error(
273 |         "Share 3 not found in Redis 2 - automatic recovery failed"
274 |       );
275 |     }
276 | 
277 |     const decryptedShare3 = decryptData(
278 |       encryptedShare3,
279 |       MPC_CONFIG.ENCRYPTION_KEY
280 |     );
281 |     const shareBuffer3 = Buffer.from(decryptedShare3, "hex");
282 | 
283 |     const reconstructedKey = sss.combine([
284 |       shareBuffer1,
285 |       shareBuffer2,
286 |       shareBuffer3,
287 |     ]);
288 | 
289 |     const keypair = Keypair.fromSecretKey(reconstructedKey);
290 | 
291 |     return keypair;
292 |   } catch (error) {
293 |     console.error("Failed to reconstruct private key:", error);
294 |     throw new Error(
295 |       "Key reconstruction failed - need all 3 shares for threshold=3"
296 |     );
297 |   }
298 | }
299 | 
300 | export async function validateShares(
301 |   userId: string,
302 |   expectedPublicKey: string,
303 |   share1: string
304 | ): Promise<boolean> {
305 |   try {
306 |     const reconstructedKeypair = await reconstructPrivateKey(userId, share1);
307 |     return reconstructedKeypair.publicKey.toBase58() === expectedPublicKey;
308 |   } catch (error) {
309 |     console.error("Share validation failed:", error);
310 |     return false;
311 |   }
312 | }
313 | 
314 | export async function signTransactionMPC(
315 |   userId: string,
316 |   transaction: Transaction,
317 |   encryptedShare1: string
318 | ): Promise<Transaction> {
319 |   let keypair: Keypair | null = null;
320 | 
321 |   try {
322 |     keypair = await reconstructPrivateKey(userId, encryptedShare1);
323 |     transaction.feePayer = new PublicKey(keypair.publicKey.toBase58());
324 |      transaction.sign(keypair);
325 |      const signature = transaction.signatures[0].signature;
326 | 
327 |     return transaction;
328 |   } finally {
329 |     if (keypair) {
330 |       keypair.secretKey.fill(0);
331 |       keypair = null;
332 |     }
333 |   }
334 | }
335 | 
336 | export async function rotateKeyShares(
337 |   userId: string,
338 |   oldShare1: string
339 | ): Promise<MPCWallet> {
340 |   const keypair = await reconstructPrivateKey(userId, oldShare1);
341 | 
342 |   const privateKeyBytes = keypair.secretKey;
343 |   const publicKey = keypair.publicKey.toBase58();
344 | 
345 |   const shares = sss.split(Buffer.from(privateKeyBytes), {
346 |     shares: MPC_CONFIG.TOTAL_SHARES,
347 |     threshold: MPC_CONFIG.THRESHOLD,
348 |   });
349 | 
350 |   const encryptedShares = shares.map((share, index) => ({
351 |     shareIndex: index + 1,
352 |     shareData: encryptData(share.toString("hex"), MPC_CONFIG.ENCRYPTION_KEY),
353 |     publicKey,
354 |   }));
355 | 
356 |   const ttlSeconds = MPC_CONFIG.SHARE_TTL_DAYS * 24 * 60 * 60;
357 |   const redisKey2 = `mpc:share:${userId}:2`;
358 |   await redis1.setex(redisKey2, ttlSeconds, encryptedShares[1].shareData);
359 | 
360 |   const redisKey3 = `mpc:share:${userId}:3`;
361 |   await redis2.setex(redisKey3, ttlSeconds, encryptedShares[2].shareData);
362 | 
363 |   keypair.secretKey.fill(0);
364 | 
365 |   return {
366 |     publicKey,
367 |     encryptedShare1: encryptedShares[0].shareData,
368 |     encryptedShare2: encryptedShares[1].shareData,
369 |     encryptedShare3: encryptedShares[2]?.shareData,
370 |     shareIndices: [1, 2, 3],
371 |   };
372 | }
373 | 
374 | export async function healthCheck(): Promise<{
375 |   redisConnected: boolean;
376 |   redis1Connected: boolean;
377 |   redis2Connected: boolean;
378 |   encryptionWorking: boolean;
379 |   shareReconstructionWorking: boolean;
380 | }> {
381 |   try {
382 |     const redis1Connected = (await redis1.ping()) === "PONG";
383 |     const redis2Connected = (await redis2.ping()) === "PONG";
384 |     const redisConnected = redis1Connected && redis2Connected;
385 | 
386 |     const testData = "test-encryption";
387 |     const encrypted = encryptData(testData, MPC_CONFIG.ENCRYPTION_KEY);
388 |     const decrypted = decryptData(encrypted, MPC_CONFIG.ENCRYPTION_KEY);
389 |     const encryptionWorking = decrypted === testData;
390 | 
391 |     const testKeypair = Keypair.generate();
392 |     const shares = sss.split(Buffer.from(testKeypair.secretKey), {
393 |       shares: 3,
394 |       threshold: 3,
395 |     });
396 |     const reconstructed = sss.combine([shares[0], shares[1], shares[2]]);
397 |     const shareReconstructionWorking =
398 |       Buffer.compare(testKeypair.secretKey, reconstructed) === 0;
399 | 
400 |     return {
401 |       redisConnected,
402 |       redis1Connected,
403 |       redis2Connected,
404 |       encryptionWorking,
405 |       shareReconstructionWorking,
406 |     };
407 |   } catch (error) {
408 |     console.error("MPC health check failed:", error);
409 |     return {
410 |       redisConnected: false,
411 |       redis1Connected: false,
412 |       redis2Connected: false,
413 |       encryptionWorking: false,
414 |       shareReconstructionWorking: false,
415 |     };
416 |   }
417 | }


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