An AI-powered web application that helps restaurants and cafeterias track and reduce food waste by analyzing photos of wasted food using Google's Gemini Vision API.

• Photo Upload: Capture or upload photos of food waste using mobile devices
• AI Analysis: Automatically identifies wasted food items using Gemini Vision
• Analytics Dashboard: Visualize waste trends, top wasted items, and category breakdowns
• AI Suggestions: Receive actionable recommendations for portion adjustments and menu changes
• Waste History: Track all waste entries with detailed item information
• Value Tracking: Estimate the monetary value of wasted food

• Frontend: React 18 + Vite + Tailwind CSS
• Backend: Node.js + Express
• Database: JSON file-based storage
• AI: Google Gemini 1.5 Flash Vision API
• Charts: Chart.js + react-chartjs-2

1. Install dependencies:

   npm run install-all

2. Set up environment variables:

   • Create a .env file in the root directory
   • Add your Gemini API key:

     GEMINI_API_KEY=your_gemini_api_key_here
     PORT=3001
     

   • Get your API key at https://aistudio.google.com/app/apikey (free)

3. Start the development servers:

   npm run dev

   This will start:

   • Frontend on http://localhost:3000
   • Backend on http://localhost:3001

1. Upload a waste photo: Click "Upload Waste" tab and either:

   • Take a photo using your phone's camera (works best on mobile)
   • Upload an existing image file

2. View analysis: The AI will identify all food items, estimate quantities, and calculate waste value

3. Check analytics: View trends and statistics in the Analytics dashboard

4. Get suggestions: Review AI-powered recommendations for reducing waste

├── client/                 # React frontend
│   ├── src/
│   │   ├── components/    # React components
│   │   ├── services/      # API service functions
│   │   └── App.jsx
│   └── package.json
├── server/                # Node.js backend
│   ├── ai/               # AI vision analysis
│   ├── database/         # Database operations
│   └── index.js          # Express server
├── data/                 # JSON database (auto-created)
├── uploads/              # Uploaded images (auto-created)
└── package.json

• POST /api/analyze-waste - Upload and analyze a waste image
• GET /api/waste-history - Get waste entry history
• GET /api/waste-stats - Get waste statistics
• GET /api/suggestions - Get AI-powered suggestions

• Get a free Gemini API key at https://aistudio.google.com/app/apikey
• Free tier: 60 requests per minute
• The app automatically creates necessary directories (data/, uploads/)
• Images are stored locally in the uploads/ directory
• All waste data is stored in JSON database (data/waste.json)

• User authentication for multiple restaurants
• Export data to CSV/PDF
• Integration with inventory management systems
• Customizable waste categories
• Batch image processing
• Mobile app version