🚀 CodeOrbit — Premium Full-Stack Coding & Interview Prep Platform

Live Application: https://code-orbit-seven.vercel.app/

CodeOrbit is a state-of-the-art, feature-rich coding ecosystem designed to help developers master algorithms, participate in real-time competitive programming, practice system-level theory, and ace software engineering interviews with the help of custom AI agents.

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🌟 Core Modules & Features

1. 🧠 Coding Playground & Problem Solving

• Monaco Editor Integration: A fully interactive, syntax-highlighted IDE built into the browser supporting multiple programming languages.
• Test Case Runner: Run your code against custom test cases and see instant console output.
• Judge0 Integration: Scalable, secure sandboxed execution of code submissions.
• Progressive AI Coding Tutor: A context-aware AI mentor resides inside the playground. It has ambient awareness of the problem description, constraints, and your current code, providing smart, progressive hints without spoiling solutions.

2. 🏆 Competitive Programming & Contests

• Timed Contests: Participate in scheduled weekly/bi-weekly competitive programming contests.
• Leaderboard Updates: Real-time ranking calculation based on solve times and scoring weights.
• Contest Registration: Register and compete in an active, locked-down contest environment.

3. 🎯 Game Zone (Developer Mini-Games)

An educational gaming suite to master computer science fundamentals:

• 🐛 Bug Hunter: Spot and correct logical errors in code snippets within 90 seconds.
• ⚡ Speed Challenge: Solve rapid-fire DSA multiple-choice questions under a strict countdown.
• 🧠 DSA Quiz Arena: Comprehensive 10-question tests covering advanced theory (DP, OS, DBMS, OOP, Networking).
• 📈 Complexity Master: Read code blocks and predict the correct Big-O time and space complexity.
• 🔍 Output Predictor: Walk through dry-runs of complex snippets to predict console outputs.
• 🎯 Pattern Recognition: Map problem statements to the correct algorithmic pattern (e.g., Sliding Window, DFS).
• 🏅 Leaderboards & Achievements: Track your gaming rank globally and unlock badges (e.g., Speed Demon, Quiz Master).

4. 💼 Interview Preparation Hub

Curated prep tracks designed to clear technical loops:

• 📚 CS Core Tracks: Curated, topic-wise practice questions for DSA, OS, DBMS, Computer Networks, and OOP.
• 🏢 Company Mappings: Explore and practice questions frequently asked by tech giants like Google, Amazon, Microsoft, and Meta.
• 🤖 AI Mock Interview Runner: A chat-based, multi-turn AI interviewer that tests your technical knowledge, scores your performance (communication, technical, confidence), and provides granular feedback.
• 📄 AI Resume Prep: Paste or upload your resume; the AI extracts your tech stack and experience to generate personalized mock interview rounds.

5. 👥 Discussion Forums & Real-Time Social Hub

• Threaded Discussions: Ask questions, share interview experiences, and discuss complex problems.
• Voting & Acceptance: Upvote valuable posts/comments, and accept answers that solve the thread.
• Real-Time Notifications: Dynamic Socket.IO-powered dropdown alerts users instantly of replies, comments, and milestones.

6. 🏪 Achievements & Orbit Coins Redeem Store

• Points & Leveling: Solve challenges, participate in contests, or win mini-games to earn XP and Orbit Coins.
• Redeem Rewards: Spend your Orbit Coins in a digital store to unlock developer profile avatars, themes, and badges.

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🛠️ Tech Stack & Architecture

Frontend (Single Page Application)

• Framework: React 19 (Vite-powered HMR)
• Styling: Tailwind CSS & DaisyUI (Clean, responsive glassmorphic dark theme)
• State Management: Redux Toolkit (Persistent session/auth states)
• Real-time Client: Socket.IO Client
• Editor: Monaco Editor (@monaco-editor/react)

Backend (REST API & WebSockets)

• Runtime: Node.js & Express.js
• WebSockets: Socket.IO (Real-time discussion comments, contest notifications, online presence)
• Database: MongoDB & Mongoose ORM (Users, Problems, Submissions, Forums, Games)
• Caching & Blocklist: Redis Client (Gracefully optional fallback mechanism for blocklisting users)
• Auth: JSON Web Tokens (JWT) stored in Secure, HTTPOnly cookies (sameSite: "none" cross-site enabled for production)

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📂 Directory Structure

CodeOrbit/
├── BACKEND/                    # Backend Node.js service
│   ├── src/
│   │   ├── config/             # DB, Redis, and API connections
│   │   ├── controllers/        # Express request logic (Auth, Contests, Games, etc.)
│   │   ├── middleware/         # JWT verification, Admin rules
│   │   ├── models/             # Mongoose schemas (User, Problem, MockInterview, etc.)
│   │   ├── routes/             # API routes
│   │   ├── seeders/            # Database mock-data population scripts
│   │   └── index.js            # Server entry point
│   ├── .env                    # Environment configurations
│   └── package.json
│
└── FRONTEND/                   # Frontend React application
    ├── src/
    │   ├── components/         # Reusable elements (Navbar, IDE, ChatBox, etc.)
    │   ├── pages/              # View screens (Homepage, Games, ContestDetail, etc.)
    │   ├── store/              # Redux slices & store setup
    │   ├── utils/              # Axios instance and shared client configurations
    │   ├── App.jsx             # Routes registration
    │   └── main.jsx            # Entry point
    ├── vite.config.js
    └── package.json

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⚙️ Setup & Local Installation

Prerequisites

• Node.js (v18+)
• MongoDB Instance
• Redis Server (Optional, server degradation handles omission gracefully)
• Judge0 API Key (RapidAPI)

1. Clone the repository

git clone https://github.com/anchal-dev/CodeOrbit.git
cd CodeOrbit

2. Configure Environment Variables

Create a .env file in the BACKEND directory:

PORT=3000
DB_CONNECT_STRING=mongodb+srv://<username>:<password>@cluster.mongodb.net/CodeOrbit
JWT_KEY=your_jwt_secret_key
REDIS_PASS=your_redis_password
JUDGE0_KEY=your_rapidapi_judge0_key
OPENROUTER_API_KEY=your_openrouter_api_key

3. Install & Start Backend

cd BACKEND
npm install
# Seed the database questions if necessary
node src/seeders/interviewSeeder.js
# Start development server
npm start

4. Install & Start Frontend

cd ../FRONTEND
npm install
npm run dev

Open http://localhost:5173 in your browser.

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🤝 Contribution & License

Contributions, bug reports, and pull requests are welcome!

Developed with 💜 by Anchal Dev.