🥗 NutriPlan - Smart Diet & Meal Planning App

NutriPlan is a modern, full-stack web application designed to help users generate personalized meal plans, track their weight progress, and manage their nutrition goals. Built with React, Node.js, and AI-driven logic, it offers a seamless experience for anyone looking to eat healthier.

✨ Features

• 🤖 AI-Powered Meal Planning: Generates weekly meal plans based on calorie targets, protein goals, dietary preferences (Vegan, Keto, etc.), and allergies.
• 📊 Progress Tracking: Log your weight daily and visualize your progress with interactive charts.
• 🛒 Smart Shopping List: Automatically generates a shopping list based on your weekly meal plan.
• 🔐 User Authentication: Secure login and registration with JWT-based authentication.
• 👤 Personalized Profile: Set activity levels, health goals, and dietary constraints.
• 📱 Responsive Design: Beautiful, mobile-friendly UI with Dark Mode support.
• 🍳 Recipe Database: Extensive collection of recipes for Breakfast, Lunch, Dinner, and Snacks.

🛠️ Tech Stack

Frontend

• React (Vite): Fast, modern UI library.
• Tailwind CSS: Utility-first CSS framework for styling.
• Lucide React: Beautiful icons.
• Rect Router: Client-side routing.
• Recharts: Data visualization for weight tracking.

Backend

• Node.js & Express: Robust REST API.
• Prisma ORM: Type-safe database access.
• SQLite: Lightweight, serverless database (easy to swap for PostgreSQL/MySQL).
• JWT: Secure stateless authentication.

🚀 Getting Started

Follow these instructions to set up the project locally.

Prerequisites

• Node.js (v18+ recommended)
• npm or yarn

1. Clone the Repository

git clone https://github.com/yourusername/smart-diet-app.git
cd smart-diet-app

2. Backend Setup

The backend handles the API and database.

cd server

# Install dependencies
npm install

# Set up Environment Variables
# Create a .env file in the server directory with:
# DATABASE_URL="file:./dev.db"
# JWT_SECRET="your_super_secret_key"

# Initialize Database & Run Migrations
npx prisma migrate dev --name init

# Start the Backend Server
npm start
# The server will run on http://localhost:3000

3. Frontend Setup

Open a new terminal window for the frontend.

# Return to root directory if you are in server/
cd .. 

# Install dependencies
npm install

# Start the Development Server
npm run dev

The app will open at http://localhost:5173.

📂 Project Structure

smart-diet-app/
├── server/                 # Backend Node.js code
│   ├── prisma/             # Database schema & migrations
│   ├── index.js            # API entry point & routes
│   └── ...
├── src/                    # Frontend React code
│   ├── components/         # Reusable UI components
│   ├── contexts/           # Global state (Auth, Theme)
│   ├── data/               # Static recipe data (JSON)
│   ├── pages/              # App pages (Dashboard, MealPlan, etc.)
│   ├── services/           # API integration & generators
│   └── App.jsx             # Main application component
└── ...

🔌 API Endpoints

Method	Endpoint	Description
POST	/api/register	Register new user
POST	/api/login	Login user & get token
GET	/api/profile	Get user profile
POST	/api/meal-plan	Save a generated meal plan
GET	/api/meal-plan	Get current meal plan
POST	/api/weight-logs	Add new weight entry
GET	/api/weight-logs	Get weight history

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.