I'll help you build a modern frontend interface for your decentralized file storage system based on the tech stack in your proposal. I'll focus on creating a React-based UI with a futuristic black theme that demonstrates the core functionality.

Let's start by creating the main application structure:

I've created a modern, futuristic frontend interface for your decentralized file storage system based on the tech stack in your proposal. The UI features:

1. Dark Theme - A sleek black-based color scheme with emerald green accents for a futuristic look
2. Dashboard Layout - With a responsive sidebar and main content area
3. File Explorer - Grid and list views for browsing files with encryption indicators
4. Storage Statistics - Visual representation of storage usage by file type
5. Recent Activity - Timeline of file operations (uploads, downloads, sharing)
6. Wallet Integration - MetaMask connection for blockchain transactions
7. Upload Dialog - Interface for uploading files with encryption options

The interface implements the key components from your proposal:

1. Decentralized Storage Network - The UI shows files stored across multiple nodes with redundancy options
2. Blockchain-based Access Control - Wallet authentication for secure access
3. Encryption & Privacy - End-to-end encryption toggles for file security
4. Incentive Mechanism - Storage provider information and token balance display
5. Efficient Retrieval & Redundancy - File management with IPFS CIDs

This frontend provides a user-friendly interface for interacting with the blockchain-based storage system. To complete the application, you would need to implement:

1. The Node.js/Express backend API for handling file operations
2. Smart contracts for file ownership and access control
3. IPFS/Filecoin integration for actual storage
4. WebRTC for peer-to-peer file transfers
5. PostgreSQL database for metadata storage

Would you like me to focus on any specific component next, such as the smart contracts or backend API implementation?

I'll implement the smart contracts, backend API, and fix the frontend issues. Let's start with the smart contract implementation, then the backend API, and finally fix any frontend issues.

How to Run the Project in VS Code

The complete decentralized file storage system is now implemented with a modern, futuristic black UI theme. Here's a guide on how to run the project in VS Code:

Project Overview

This decentralized file storage system consists of:

1. Frontend: A Next.js application with a responsive UI for file management
2. Smart Contracts: Solidity contracts for file ownership and access control
3. Backend API: Node.js/Express server for handling file operations and IPFS integration
4. Database: Supabase for metadata storage

Step-by-Step Setup in VS Code

1. Set up VS Code Environment:

   • Open VS Code and install recommended extensions:

     • JavaScript/TypeScript extensions
     • Solidity extension for smart contract development
     • Tailwind CSS IntelliSense for styling

2. Clone the Project:

   • Open a terminal in VS Code (Ctrl+` or Terminal → New Terminal)
   • Clone your repository or create a new project with the files provided
3. Install Dependencies: ```bash npm install cd server npm install cd .. ```

4. Configure Environment Variables:

   • Create .env.local in the root for frontend: ``` NEXT_PUBLIC_BACKEND_URL=http://localhost:3001 NEXT_PUBLIC_CONTRACT_ADDRESS=your-contract-address ```
   • Create .env in the server directory for backend: ``` PORT=3001 ETHEREUM_RPC_URL=your-ethereum-node-url FILE_STORAGE_CONTRACT_ADDRESS=your-contract-address IPFS_HOST=localhost IPFS_PORT=5001 SUPABASE_URL=your-supabase-url SUPABASE_ANON_KEY=your-supabase-key ```

5. Smart Contract Deployment (optional during development):

   • Install Hardhat or Truffle globally
   • Deploy to a local blockchain or testnet using the provided script
   • Update the contract addresses in your environment variables

6. Running the Application:

   • Open two terminal windows in VS Code:
   • In the first terminal, start the frontend: ```bash npm run dev ```
   • In the second terminal, start the backend: ```bash cd server npm start ```

7. Accessing the Application:

   • The frontend will be available at http://localhost:3000
   • The backend API will be available at http://localhost:3001

Development Tips

1. VS Code Features:

   • Use split editors to view frontend and backend code side by side
   • Leverage integrated terminal for running commands
   • Use the debugger to set breakpoints and inspect variables

2. Testing Smart Contracts:

   • Set up a local Ethereum network using Hardhat for testing
   • Write test cases for your smart contracts to ensure they function correctly

3. IPFS Integration:

   • For local development, you can run a local IPFS node or use a service like Infura
   • The backend API will handle the communication with IPFS

Key Components and Their Interaction

• Frontend communicates with both the backend API and blockchain directly
• Smart Contracts handle file ownership, access control, and token economy
• Backend API manages file uploads/downloads through IPFS and metadata in Supabase
• MetaMask provides wallet functionality and transaction signing

This decentralized architecture ensures that files are securely stored across multiple nodes, with access control managed by the blockchain, and an intuitive user interface for seamless interaction.

Would you like me to elaborate on any specific part of the system or provide additional implementation details?

Please make sure to add the following environment variables to your project: