Initial Version

2025-05-23 20:44:23 +02:00 · 2025-05-23 20:44:03 +02:00
28 changed files with 21518 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
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+# Python Backend
+# Virtual environments
+venv/
+env/
+ENV/
+.venv/
+.env/
+
+# Python cache
+__pycache__/
+*.py[cod]
+*$py.class
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+
+# Distribution / packaging
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+# Output of 'npm pack'
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+# Database
+# SQLite databases
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+*.sqlite3
+
+# PostgreSQL
+*.sql
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+# Database dumps
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+*.seed
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+# Temporary files
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+
+# Application specific
+# Alembic (database migrations)
+alembic/versions/*.py
+!alembic/versions/__init__.py
+
+# Local configuration
+config.local.py
+settings.local.py
+
+# Backup files
+*.bak
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+# Docker
+docker-compose.override.yml
+.dockerignore
+
+# Misc
+.DS_Store
+.env.backup
+*.orig 
--- a/QUICKSTART.md
+++ b/QUICKSTART.md
@ -0,0 +1,92 @@
+# 🚀 Quick Start Guide
+
+Get your Grocery Tracker up and running in minutes!
+
+## Prerequisites
+
+- **Python 3.8+** (for backend)
+- **Node.js 16+** (for frontend)
+
+## Option 1: Install Node.js
+
+Choose one of these methods:
+
+### **Method A: Homebrew (Recommended)**
+```bash
+brew install node
+```
+
+### **Method B: Official Installer**
+1. Visit [nodejs.org](https://nodejs.org/)
+2. Download LTS version for macOS
+3. Run the installer
+
+### **Method C: Node Version Manager**
+```bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.0/install.sh | bash
+source ~/.zshrc
+nvm install --lts
+```
+
+## Setup Steps
+
+### **1. Start the Backend** 🐍
+```bash
+cd backend
+python3 run_dev.py
+```
+
+This will:
+- Create a virtual environment
+- Install Python dependencies
+- Create SQLite database
+- Start FastAPI server at http://localhost:8000
+
+### **2. Start the Frontend** ⚛️
+Open a **new terminal** and run:
+```bash
+cd frontend
+./setup.sh     # or: bash setup.sh
+npm start
+```
+
+This will:
+- Install React dependencies
+- Start development server at http://localhost:3000
+
+## 🎉 You're Ready!
+
+- **Frontend**: http://localhost:3000
+- **Backend API**: http://localhost:8000
+- **API Docs**: http://localhost:8000/docs
+
+## First Steps
+
+1. **Add a Shop**: Go to "Shops" and add your first grocery store
+2. **Add Groceries**: Go to "Groceries" and add some items
+3. **Record a Purchase**: Use "Add Purchase" to record your shopping
+
+## Troubleshooting
+
+### Backend Issues
+- **Dependencies fail**: Make sure Python 3.8+ is installed
+- **Database errors**: The app uses SQLite by default (no PostgreSQL needed)
+
+### Frontend Issues
+- **Node not found**: Install Node.js using one of the methods above
+- **npm install fails**: Try deleting `node_modules` and running `npm install` again
+
+### Connection Issues
+- Make sure both servers are running
+- Backend should be on port 8000, frontend on port 3000
+- Check firewall settings if needed
+
+## What's Included
+
+✅ **Complete Backend**: FastAPI with SQLAlchemy and SQLite
+✅ **Modern Frontend**: React with TypeScript and Tailwind CSS
+✅ **Database Models**: Groceries, Shops, Shopping Events
+✅ **API Documentation**: Automatic Swagger docs
+✅ **Beautiful UI**: Responsive design with modern components
+
+Happy grocery tracking! 🛒 
--- a/README.md
+++ b/README.md
@ -0,0 +1,239 @@
+# Grocery Tracker
+
+A web application for tracking grocery prices and shopping events. Built with FastAPI (Python) backend and React (TypeScript) frontend.
+
+## Features
+
+- **Grocery Management**: Add, edit, and track grocery items with prices, categories, and organic status
+- **Shop Management**: Manage different shops with locations
+- **Shopping Events**: Record purchases with multiple groceries and amounts
+- **Price Tracking**: Monitor price changes over time
+- **Modern UI**: Clean, responsive interface built with React and Tailwind CSS
+
+## Architecture
+
+### Technology Stack
+
+**Backend (Python):**
+- FastAPI - Modern, fast web framework
+- SQLAlchemy - SQL toolkit and ORM
+- PostgreSQL - Relational database
+- Pydantic - Data validation and settings management
+- Alembic - Database migrations
+
+**Frontend (React):**
+- React 18 with TypeScript
+- React Router - Client-side routing
+- Tailwind CSS - Utility-first CSS framework
+- Axios - HTTP client for API calls
+- React Hook Form - Form handling
+
+### Component Communication
+
+```
+┌─────────────────┐    HTTP/REST API    ┌─────────────────┐    SQL Queries    ┌─────────────────┐
+│   React         │ ←─────────────────→ │   FastAPI       │ ←───────────────→ │   PostgreSQL    │
+│   Frontend      │     JSON requests   │   Backend       │   SQLAlchemy ORM  │   Database      │
+│   (Port 3000)   │     JSON responses  │   (Port 8000)   │                   │   (Port 5432)   │
+└─────────────────┘                     └─────────────────┘                   └─────────────────┘
+```
+
+## Data Model
+
+### Groceries
+- `id`: Primary key
+- `name`: Grocery name
+- `price`: Current price
+- `category`: Food category
+- `organic`: Boolean flag
+- `weight`: Weight/volume
+- `weight_unit`: Unit (g, kg, ml, l, piece)
+
+### Shops
+- `id`: Primary key
+- `name`: Shop name
+- `city`: Location city
+- `address`: Optional full address
+
+### Shopping Events
+- `id`: Primary key
+- `shop_id`: Foreign key to shops
+- `date`: Purchase date
+- `total_amount`: Optional total cost
+- `notes`: Optional notes
+- `groceries`: Many-to-many relationship with amounts
+
+## Setup Instructions
+
+### Prerequisites
+
+1. **Python 3.8+** - For the backend
+2. **Node.js 16+** - For the frontend
+3. **PostgreSQL** - Database
+
+### Backend Setup
+
+1. **Navigate to backend directory:**
+   ```bash
+   cd backend
+   ```
+
+2. **Create virtual environment:**
+   ```bash
+   python3 -m venv venv
+   source venv/bin/activate  # On Windows: venv\Scripts\activate
+   ```
+
+3. **Install dependencies:**
+   ```bash
+   pip install -r requirements.txt
+   ```
+
+4. **Setup database:**
+   ```bash
+   # Create PostgreSQL database
+   createdb grocery_tracker
+   
+   # Copy environment variables
+   cp env.example .env
+   
+   # Edit .env with your database credentials
+   nano .env
+   ```
+
+5. **Run database migrations:**
+   ```bash
+   alembic upgrade head  # After setting up alembic
+   ```
+
+6. **Start the backend server:**
+   ```bash
+   uvicorn main:app --reload
+   ```
+
+   The API will be available at `http://localhost:8000`
+   API docs at `http://localhost:8000/docs`
+
+### Frontend Setup
+
+1. **Navigate to frontend directory:**
+   ```bash
+   cd frontend
+   ```
+
+2. **Install dependencies:**
+   ```bash
+   npm install
+   ```
+
+3. **Start the development server:**
+   ```bash
+   npm start
+   ```
+
+   The app will be available at `http://localhost:3000`
+
+## API Endpoints
+
+### Groceries
+- `GET /groceries/` - List all groceries
+- `POST /groceries/` - Create new grocery
+- `GET /groceries/{id}` - Get specific grocery
+- `PUT /groceries/{id}` - Update grocery
+- `DELETE /groceries/{id}` - Delete grocery
+
+### Shops
+- `GET /shops/` - List all shops
+- `POST /shops/` - Create new shop
+- `GET /shops/{id}` - Get specific shop
+
+### Shopping Events
+- `GET /shopping-events/` - List all shopping events
+- `POST /shopping-events/` - Create new shopping event
+- `GET /shopping-events/{id}` - Get specific shopping event
+
+### Statistics
+- `GET /stats/categories` - Category spending statistics
+- `GET /stats/shops` - Shop visit statistics
+
+## Usage
+
+1. **Add Shops**: Start by adding shops where you buy groceries
+2. **Add Groceries**: Create grocery items with prices and categories
+3. **Record Purchases**: Use the "Add Purchase" form to record shopping events
+4. **Track Prices**: Monitor how prices change over time
+5. **View Statistics**: Analyze spending patterns by category and shop
+
+## Development
+
+### Running Tests
+
+**Backend:**
+```bash
+cd backend
+pytest
+```
+
+**Frontend:**
+```bash
+cd frontend
+npm test
+```
+
+### Database Migrations
+
+```bash
+cd backend
+alembic revision --autogenerate -m "Description"
+alembic upgrade head
+```
+
+## Docker Deployment
+
+Create `docker-compose.yml` for easy deployment:
+
+```yaml
+version: '3.8'
+services:
+  db:
+    image: postgres:15
+    environment:
+      POSTGRES_DB: grocery_tracker
+      POSTGRES_USER: grocery_user
+      POSTGRES_PASSWORD: your_password
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+
+  backend:
+    build: ./backend
+    ports:
+      - "8000:8000"
+    depends_on:
+      - db
+    environment:
+      DATABASE_URL: postgresql://grocery_user:your_password@db:5432/grocery_tracker
+
+  frontend:
+    build: ./frontend
+    ports:
+      - "3000:3000"
+    depends_on:
+      - backend
+
+volumes:
+  postgres_data:
+```
+
+## Contributing
+
+1. Fork the repository
+2. Create a feature branch
+3. Make changes
+4. Add tests
+5. Submit a pull request
+
+## License
+
+MIT License
--- a/backend/database.py
+++ b/backend/database.py
@ -0,0 +1,38 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.ext.declarative import declarative_base
+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
+# Get database URL from environment with SQLite fallback for development
+DATABASE_URL = os.getenv("DATABASE_URL")
+
+if not DATABASE_URL:
+    # Default to SQLite for development if no PostgreSQL URL is provided
+    DATABASE_URL = "sqlite:///./grocery_tracker.db"
+    print("🔄 Using SQLite database for development")
+else:
+    print(f"🐘 Using PostgreSQL database")
+
+# Configure engine based on database type
+if DATABASE_URL.startswith("sqlite"):
+    engine = create_engine(
+        DATABASE_URL, 
+        connect_args={"check_same_thread": False}  # Needed for SQLite
+    )
+else:
+    engine = create_engine(DATABASE_URL)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base = declarative_base()
+
+# Dependency to get database session
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close() 
--- a/backend/env.example
+++ b/backend/env.example
@ -0,0 +1,14 @@
+# Database Configuration
+# Option 1: PostgreSQL (for production)
+# DATABASE_URL=postgresql://username:password@localhost:5432/grocery_tracker
+
+# Option 2: SQLite (for development - default if DATABASE_URL is not set)
+# DATABASE_URL=sqlite:///./grocery_tracker.db
+
+# Authentication (optional for basic setup)
+SECRET_KEY=your-secret-key-here
+ALGORITHM=HS256
+ACCESS_TOKEN_EXPIRE_MINUTES=30
+
+# Development settings
+DEBUG=True 
--- a/backend/main.py
+++ b/backend/main.py
@ -0,0 +1,160 @@
+from fastapi import FastAPI, Depends, HTTPException, status
+from fastapi.middleware.cors import CORSMiddleware
+from sqlalchemy.orm import Session
+from typing import List
+import models, schemas
+from database import engine, get_db
+
+# Create database tables
+models.Base.metadata.create_all(bind=engine)
+
+app = FastAPI(
+    title="Grocery Tracker API",
+    description="API for tracking grocery prices and shopping events",
+    version="1.0.0"
+)
+
+# CORS middleware for React frontend
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["http://localhost:3000", "http://localhost:5173"],  # React dev servers
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Root endpoint
+@app.get("/")
+def read_root():
+    return {"message": "Grocery Tracker API", "version": "1.0.0"}
+
+# Grocery endpoints
+@app.post("/groceries/", response_model=schemas.Grocery)
+def create_grocery(grocery: schemas.GroceryCreate, db: Session = Depends(get_db)):
+    db_grocery = models.Grocery(**grocery.dict())
+    db.add(db_grocery)
+    db.commit()
+    db.refresh(db_grocery)
+    return db_grocery
+
+@app.get("/groceries/", response_model=List[schemas.Grocery])
+def read_groceries(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
+    groceries = db.query(models.Grocery).offset(skip).limit(limit).all()
+    return groceries
+
+@app.get("/groceries/{grocery_id}", response_model=schemas.Grocery)
+def read_grocery(grocery_id: int, db: Session = Depends(get_db)):
+    grocery = db.query(models.Grocery).filter(models.Grocery.id == grocery_id).first()
+    if grocery is None:
+        raise HTTPException(status_code=404, detail="Grocery not found")
+    return grocery
+
+@app.put("/groceries/{grocery_id}", response_model=schemas.Grocery)
+def update_grocery(grocery_id: int, grocery_update: schemas.GroceryUpdate, db: Session = Depends(get_db)):
+    grocery = db.query(models.Grocery).filter(models.Grocery.id == grocery_id).first()
+    if grocery is None:
+        raise HTTPException(status_code=404, detail="Grocery not found")
+    
+    update_data = grocery_update.dict(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(grocery, field, value)
+    
+    db.commit()
+    db.refresh(grocery)
+    return grocery
+
+@app.delete("/groceries/{grocery_id}")
+def delete_grocery(grocery_id: int, db: Session = Depends(get_db)):
+    grocery = db.query(models.Grocery).filter(models.Grocery.id == grocery_id).first()
+    if grocery is None:
+        raise HTTPException(status_code=404, detail="Grocery not found")
+    
+    db.delete(grocery)
+    db.commit()
+    return {"message": "Grocery deleted successfully"}
+
+# Shop endpoints
+@app.post("/shops/", response_model=schemas.Shop)
+def create_shop(shop: schemas.ShopCreate, db: Session = Depends(get_db)):
+    db_shop = models.Shop(**shop.dict())
+    db.add(db_shop)
+    db.commit()
+    db.refresh(db_shop)
+    return db_shop
+
+@app.get("/shops/", response_model=List[schemas.Shop])
+def read_shops(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
+    shops = db.query(models.Shop).offset(skip).limit(limit).all()
+    return shops
+
+@app.get("/shops/{shop_id}", response_model=schemas.Shop)
+def read_shop(shop_id: int, db: Session = Depends(get_db)):
+    shop = db.query(models.Shop).filter(models.Shop.id == shop_id).first()
+    if shop is None:
+        raise HTTPException(status_code=404, detail="Shop not found")
+    return shop
+
+# Shopping Event endpoints
+@app.post("/shopping-events/", response_model=schemas.ShoppingEventResponse)
+def create_shopping_event(event: schemas.ShoppingEventCreate, db: Session = Depends(get_db)):
+    # Verify shop exists
+    shop = db.query(models.Shop).filter(models.Shop.id == event.shop_id).first()
+    if shop is None:
+        raise HTTPException(status_code=404, detail="Shop not found")
+    
+    # Create shopping event
+    db_event = models.ShoppingEvent(
+        shop_id=event.shop_id,
+        date=event.date,
+        total_amount=event.total_amount,
+        notes=event.notes
+    )
+    db.add(db_event)
+    db.commit()
+    db.refresh(db_event)
+    
+    # Add groceries to the event
+    for grocery_item in event.groceries:
+        grocery = db.query(models.Grocery).filter(models.Grocery.id == grocery_item.grocery_id).first()
+        if grocery is None:
+            raise HTTPException(status_code=404, detail=f"Grocery with id {grocery_item.grocery_id} not found")
+        
+        # Insert into association table
+        db.execute(
+            models.shopping_event_groceries.insert().values(
+                shopping_event_id=db_event.id,
+                grocery_id=grocery_item.grocery_id,
+                amount=grocery_item.amount
+            )
+        )
+    
+    db.commit()
+    db.refresh(db_event)
+    return db_event
+
+@app.get("/shopping-events/", response_model=List[schemas.ShoppingEventResponse])
+def read_shopping_events(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
+    events = db.query(models.ShoppingEvent).offset(skip).limit(limit).all()
+    return events
+
+@app.get("/shopping-events/{event_id}", response_model=schemas.ShoppingEventResponse)
+def read_shopping_event(event_id: int, db: Session = Depends(get_db)):
+    event = db.query(models.ShoppingEvent).filter(models.ShoppingEvent.id == event_id).first()
+    if event is None:
+        raise HTTPException(status_code=404, detail="Shopping event not found")
+    return event
+
+# Statistics endpoints
+@app.get("/stats/categories", response_model=List[schemas.CategoryStats])
+def get_category_stats(db: Session = Depends(get_db)):
+    # This would need more complex SQL query - placeholder for now
+    return []
+
+@app.get("/stats/shops", response_model=List[schemas.ShopStats])
+def get_shop_stats(db: Session = Depends(get_db)):
+    # This would need more complex SQL query - placeholder for now
+    return []
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=8000) 
--- a/backend/models.py
+++ b/backend/models.py
@ -0,0 +1,58 @@
+from sqlalchemy import Column, Integer, String, Float, Boolean, DateTime, ForeignKey, Table
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+from datetime import datetime
+
+Base = declarative_base()
+
+# Association table for many-to-many relationship between shopping events and groceries
+shopping_event_groceries = Table(
+    'shopping_event_groceries',
+    Base.metadata,
+    Column('shopping_event_id', Integer, ForeignKey('shopping_events.id'), primary_key=True),
+    Column('grocery_id', Integer, ForeignKey('groceries.id'), primary_key=True),
+    Column('amount', Float, nullable=False)  # Amount of this grocery bought in this event
+)
+
+class Grocery(Base):
+    __tablename__ = "groceries"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String, nullable=False, index=True)
+    price = Column(Float, nullable=False)
+    category = Column(String, nullable=False)
+    organic = Column(Boolean, default=False)
+    weight = Column(Float, nullable=True)  # in grams or kg
+    weight_unit = Column(String, default="piece")  # "g", "kg", "ml", "l", "piece"
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    
+    # Relationships
+    shopping_events = relationship("ShoppingEvent", secondary=shopping_event_groceries, back_populates="groceries")
+
+class Shop(Base):
+    __tablename__ = "shops"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String, nullable=False, index=True)
+    city = Column(String, nullable=False)
+    address = Column(String, nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    
+    # Relationships
+    shopping_events = relationship("ShoppingEvent", back_populates="shop")
+
+class ShoppingEvent(Base):
+    __tablename__ = "shopping_events"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    shop_id = Column(Integer, ForeignKey("shops.id"), nullable=False)
+    date = Column(DateTime(timezone=True), nullable=False, default=datetime.utcnow)
+    total_amount = Column(Float, nullable=True)  # Total cost of the shopping event
+    notes = Column(String, nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    
+    # Relationships
+    shop = relationship("Shop", back_populates="shopping_events")
+    groceries = relationship("Grocery", secondary=shopping_event_groceries, back_populates="shopping_events") 
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@ -0,0 +1,13 @@
+fastapi>=0.104.1
+uvicorn[standard]>=0.24.0
+sqlalchemy>=2.0.23
+psycopg[binary]>=3.2.2
+alembic>=1.12.1
+pydantic>=2.5.0
+python-jose[cryptography]>=3.3.0
+passlib[bcrypt]>=1.7.4
+python-multipart>=0.0.6
+python-dotenv>=1.0.0
+pytest>=7.4.3
+pytest-asyncio>=0.21.1
+httpx>=0.25.2 
--- a/backend/run_dev.py
+++ b/backend/run_dev.py
@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""
+Development script to run the FastAPI server with database setup
+"""
+import os
+import sys
+import subprocess
+from pathlib import Path
+
+def run_command(command, cwd=None):
+    """Run a command and return True if successful"""
+    try:
+        result = subprocess.run(command, shell=True, cwd=cwd, check=True)
+        return result.returncode == 0
+    except subprocess.CalledProcessError as e:
+        print(f"Error running command: {command}")
+        print(f"Error: {e}")
+        return False
+
+def main():
+    # Ensure we're in the backend directory
+    backend_dir = Path(__file__).parent
+    os.chdir(backend_dir)
+    
+    print("🍃 Starting Grocery Tracker Backend Development Server")
+    print("=" * 50)
+    
+    # Check if virtual environment exists
+    venv_path = backend_dir / "venv"
+    if not venv_path.exists():
+        print("📦 Creating virtual environment...")
+        if not run_command("python3 -m venv venv"):
+            print("❌ Failed to create virtual environment")
+            sys.exit(1)
+    
+    # Install dependencies
+    print("📦 Installing dependencies...")
+    pip_cmd = "venv/bin/pip" if os.name != 'nt' else "venv\\Scripts\\pip"
+    if not run_command(f"{pip_cmd} install -r requirements.txt"):
+        print("❌ Failed to install dependencies")
+        sys.exit(1)
+    
+    # Create database tables
+    print("🗄️  Creating database tables...")
+    python_cmd = "venv/bin/python" if os.name != 'nt' else "venv\\Scripts\\python"
+    create_tables_script = """
+from models import Base
+from database import engine
+Base.metadata.create_all(bind=engine)
+print("Database tables created successfully!")
+"""
+    
+    with open("create_tables.py", "w") as f:
+        f.write(create_tables_script)
+    
+    if not run_command(f"{python_cmd} create_tables.py"):
+        print("⚠️  Database tables creation failed (this is normal if database doesn't exist yet)")
+    
+    # Clean up
+    os.remove("create_tables.py")
+    
+    # Start the server
+    print("🚀 Starting FastAPI server...")
+    print("📍 API will be available at: http://localhost:8000")
+    print("📚 API docs will be available at: http://localhost:8000/docs")
+    print("🛑 Press Ctrl+C to stop the server")
+    print("=" * 50)
+    
+    uvicorn_cmd = "venv/bin/uvicorn" if os.name != 'nt' else "venv\\Scripts\\uvicorn"
+    run_command(f"{uvicorn_cmd} main:app --reload --host 0.0.0.0 --port 8000")
+
+if __name__ == "__main__":
+    main() 
--- a/backend/schemas.py
+++ b/backend/schemas.py
@ -0,0 +1,95 @@
+from pydantic import BaseModel, Field
+from typing import Optional, List
+from datetime import datetime
+
+# Base schemas
+class GroceryBase(BaseModel):
+    name: str
+    price: float = Field(..., gt=0)
+    category: str
+    organic: bool = False
+    weight: Optional[float] = None
+    weight_unit: str = "g"
+
+class GroceryCreate(GroceryBase):
+    pass
+
+class GroceryUpdate(BaseModel):
+    name: Optional[str] = None
+    price: Optional[float] = Field(None, gt=0)
+    category: Optional[str] = None
+    organic: Optional[bool] = None
+    weight: Optional[float] = None
+    weight_unit: Optional[str] = None
+
+class Grocery(GroceryBase):
+    id: int
+    created_at: datetime
+    updated_at: Optional[datetime] = None
+    
+    class Config:
+        from_attributes = True
+
+# Shop schemas
+class ShopBase(BaseModel):
+    name: str
+    city: str
+    address: Optional[str] = None
+
+class ShopCreate(ShopBase):
+    pass
+
+class ShopUpdate(BaseModel):
+    name: Optional[str] = None
+    city: Optional[str] = None
+    address: Optional[str] = None
+
+class Shop(ShopBase):
+    id: int
+    created_at: datetime
+    
+    class Config:
+        from_attributes = True
+
+# Shopping Event schemas
+class GroceryInEvent(BaseModel):
+    grocery_id: int
+    amount: float = Field(..., gt=0)
+
+class ShoppingEventBase(BaseModel):
+    shop_id: int
+    date: Optional[datetime] = None
+    total_amount: Optional[float] = Field(None, ge=0)
+    notes: Optional[str] = None
+
+class ShoppingEventCreate(ShoppingEventBase):
+    groceries: List[GroceryInEvent] = []
+
+class ShoppingEventUpdate(BaseModel):
+    shop_id: Optional[int] = None
+    date: Optional[datetime] = None
+    total_amount: Optional[float] = Field(None, ge=0)
+    notes: Optional[str] = None
+    groceries: Optional[List[GroceryInEvent]] = None
+
+class ShoppingEventResponse(ShoppingEventBase):
+    id: int
+    created_at: datetime
+    shop: Shop
+    groceries: List[Grocery] = []
+    
+    class Config:
+        from_attributes = True
+
+# Statistics schemas
+class CategoryStats(BaseModel):
+    category: str
+    total_spent: float
+    item_count: int
+    avg_price: float
+
+class ShopStats(BaseModel):
+    shop_name: str
+    total_spent: float
+    visit_count: int
+    avg_per_visit: float 
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
--- a/frontend/package.json
+++ b/frontend/package.json
@ -0,0 +1,47 @@
+{
+  "name": "grocery-tracker-frontend",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@types/node": "^20.10.5",
+    "@types/react": "^18.2.45",
+    "@types/react-dom": "^18.2.18",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-router-dom": "^6.20.1",
+    "react-scripts": "5.0.1",
+    "typescript": "^4.9.5",
+    "web-vitals": "^3.5.0",
+    "axios": "^1.6.2"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  },
+  "devDependencies": {
+    "@types/jest": "^29.5.8",
+    "tailwindcss": "^3.3.6",
+    "autoprefixer": "^10.4.16",
+    "postcss": "^8.4.32"
+  }
+}
--- a/frontend/postcss.config.js
+++ b/frontend/postcss.config.js
@ -0,0 +1,6 @@
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+} 
--- a/frontend/public/index.html
+++ b/frontend/public/index.html
@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Track grocery prices and shopping events"
+    />
+    <title>Grocery Tracker</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+  </body>
+</html> 
--- a/frontend/setup.sh
+++ b/frontend/setup.sh
@ -0,0 +1,44 @@
+#!/bin/bash
+
+echo "🎯 Setting up Grocery Tracker Frontend"
+echo "======================================"
+
+# Check if Node.js is installed
+if ! command -v node &> /dev/null; then
+    echo "❌ Node.js is not installed!"
+    echo ""
+    echo "Please install Node.js first:"
+    echo "  • Option 1: brew install node"
+    echo "  • Option 2: Download from https://nodejs.org/"
+    echo "  • Option 3: Use nvm (Node Version Manager)"
+    echo ""
+    exit 1
+fi
+
+echo "✅ Node.js found: $(node --version)"
+echo "✅ npm found: $(npm --version)"
+
+# Install dependencies
+echo ""
+echo "📦 Installing dependencies..."
+npm install
+
+if [ $? -eq 0 ]; then
+    echo ""
+    echo "🎉 Frontend setup complete!"
+    echo ""
+    echo "🚀 To start the development server:"
+    echo "   npm start"
+    echo ""
+    echo "📍 The app will be available at: http://localhost:3000"
+    echo "🔗 Make sure the backend is running at: http://localhost:8000"
+    echo ""
+    echo "🛠️  Other useful commands:"
+    echo "   npm run build    - Build for production"
+    echo "   npm test         - Run tests"
+else
+    echo ""
+    echo "❌ Failed to install dependencies"
+    echo "Please check the error messages above"
+    exit 1
+fi 
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@ -0,0 +1,75 @@
+import React from 'react';
+import { BrowserRouter as Router, Routes, Route, Link } from 'react-router-dom';
+import GroceryList from './components/GroceryList';
+import ShopList from './components/ShopList';
+import ShoppingEventForm from './components/ShoppingEventForm';
+import ShoppingEventList from './components/ShoppingEventList';
+import Dashboard from './components/Dashboard';
+
+function App() {
+  return (
+    <Router>
+      <div className="min-h-screen bg-gray-50">
+        {/* Navigation */}
+        <nav className="bg-white shadow-lg">
+          <div className="max-w-7xl mx-auto px-4">
+            <div className="flex justify-between h-16">
+              <div className="flex">
+                <div className="flex-shrink-0 flex items-center">
+                  <h1 className="text-xl font-bold text-gray-800">
+                    🛒 Grocery Tracker
+                  </h1>
+                </div>
+                <div className="hidden sm:ml-6 sm:flex sm:space-x-8">
+                  <Link
+                    to="/"
+                    className="text-gray-500 hover:text-gray-700 inline-flex items-center px-1 pt-1 text-sm font-medium"
+                  >
+                    Dashboard
+                  </Link>
+                  <Link
+                    to="/groceries"
+                    className="text-gray-500 hover:text-gray-700 inline-flex items-center px-1 pt-1 text-sm font-medium"
+                  >
+                    Groceries
+                  </Link>
+                  <Link
+                    to="/shops"
+                    className="text-gray-500 hover:text-gray-700 inline-flex items-center px-1 pt-1 text-sm font-medium"
+                  >
+                    Shops
+                  </Link>
+                  <Link
+                    to="/shopping-events"
+                    className="text-gray-500 hover:text-gray-700 inline-flex items-center px-1 pt-1 text-sm font-medium"
+                  >
+                    Shopping Events
+                  </Link>
+                  <Link
+                    to="/add-purchase"
+                    className="bg-blue-500 hover:bg-blue-700 text-white inline-flex items-center px-3 py-2 text-sm font-medium rounded-md"
+                  >
+                    Add Purchase
+                  </Link>
+                </div>
+              </div>
+            </div>
+          </div>
+        </nav>
+
+        {/* Main Content */}
+        <main className="max-w-7xl mx-auto py-6 sm:px-6 lg:px-8">
+          <Routes>
+            <Route path="/" element={<Dashboard />} />
+            <Route path="/groceries" element={<GroceryList />} />
+            <Route path="/shops" element={<ShopList />} />
+            <Route path="/shopping-events" element={<ShoppingEventList />} />
+            <Route path="/add-purchase" element={<ShoppingEventForm />} />
+          </Routes>
+        </main>
+      </div>
+    </Router>
+  );
+}
+
+export default App; 
--- a/frontend/src/components/Dashboard.tsx
+++ b/frontend/src/components/Dashboard.tsx
@ -0,0 +1,135 @@
+import React from 'react';
+
+const Dashboard: React.FC = () => {
+  return (
+    <div className="space-y-6">
+      <div>
+        <h1 className="text-2xl font-bold text-gray-900">Dashboard</h1>
+        <p className="text-gray-600">Welcome to your grocery tracker!</p>
+      </div>
+
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
+        {/* Stats Cards */}
+        <div className="bg-white rounded-lg shadow p-6">
+          <div className="flex items-center">
+            <div className="p-2 bg-blue-100 rounded-md">
+              <svg className="w-6 h-6 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M16 11V7a4 4 0 00-8 0v4M5 9h14l1 12H4L5 9z" />
+              </svg>
+            </div>
+            <div className="ml-4">
+              <p className="text-sm font-medium text-gray-600">Total Shopping Events</p>
+              <p className="text-2xl font-semibold text-gray-900">-</p>
+            </div>
+          </div>
+        </div>
+
+        <div className="bg-white rounded-lg shadow p-6">
+          <div className="flex items-center">
+            <div className="p-2 bg-green-100 rounded-md">
+              <svg className="w-6 h-6 text-green-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 8c-1.657 0-3 .895-3 2s1.343 2 3 2 3 .895 3 2-1.343 2-3 2m0-8c1.11 0 2.08.402 2.599 1M12 8V7m0 1v8m0 0v1m0-1c-1.11 0-2.08-.402-2.599-1" />
+              </svg>
+            </div>
+            <div className="ml-4">
+              <p className="text-sm font-medium text-gray-600">Total Spent</p>
+              <p className="text-2xl font-semibold text-gray-900">$-</p>
+            </div>
+          </div>
+        </div>
+
+        <div className="bg-white rounded-lg shadow p-6">
+          <div className="flex items-center">
+            <div className="p-2 bg-yellow-100 rounded-md">
+              <svg className="w-6 h-6 text-yellow-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M20 7l-8-4-8 4m16 0l-8 4m8-4v10l-8 4m0-10L4 7m8 4v10M4 7v10l8 4" />
+              </svg>
+            </div>
+            <div className="ml-4">
+              <p className="text-sm font-medium text-gray-600">Unique Items</p>
+              <p className="text-2xl font-semibold text-gray-900">-</p>
+            </div>
+          </div>
+        </div>
+
+        <div className="bg-white rounded-lg shadow p-6">
+          <div className="flex items-center">
+            <div className="p-2 bg-purple-100 rounded-md">
+              <svg className="w-6 h-6 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 21V5a2 2 0 00-2-2H7a2 2 0 00-2 2v16m14 0h2m-2 0h-5m-9 0H3m2 0h5M9 7h1m-1 4h1m4-4h1m-1 4h1m-5 10v-5a1 1 0 011-1h2a1 1 0 011 1v5m-4 0h4" />
+              </svg>
+            </div>
+            <div className="ml-4">
+              <p className="text-sm font-medium text-gray-600">Shops Visited</p>
+              <p className="text-2xl font-semibold text-gray-900">-</p>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      {/* Quick Actions */}
+      <div className="bg-white rounded-lg shadow">
+        <div className="px-6 py-4 border-b border-gray-200">
+          <h2 className="text-lg font-medium text-gray-900">Quick Actions</h2>
+        </div>
+        <div className="p-6">
+          <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+            <button className="flex items-center p-4 border border-gray-300 rounded-lg hover:bg-gray-50 transition-colors">
+              <div className="p-2 bg-blue-100 rounded-md mr-3">
+                <svg className="w-5 h-5 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 6v6m0 0v6m0-6h6m-6 0H6" />
+                </svg>
+              </div>
+              <div>
+                <p className="font-medium text-gray-900">Add Purchase</p>
+                <p className="text-sm text-gray-600">Record a new shopping event</p>
+              </div>
+            </button>
+
+            <button className="flex items-center p-4 border border-gray-300 rounded-lg hover:bg-gray-50 transition-colors">
+              <div className="p-2 bg-green-100 rounded-md mr-3">
+                <svg className="w-5 h-5 text-green-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M20 7l-8-4-8 4m16 0l-8 4m8-4v10l-8 4m0-10L4 7m8 4v10M4 7v10l8 4" />
+                </svg>
+              </div>
+              <div>
+                <p className="font-medium text-gray-900">Add Grocery</p>
+                <p className="text-sm text-gray-600">Add a new grocery item</p>
+              </div>
+            </button>
+
+            <button className="flex items-center p-4 border border-gray-300 rounded-lg hover:bg-gray-50 transition-colors">
+              <div className="p-2 bg-purple-100 rounded-md mr-3">
+                <svg className="w-5 h-5 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 21V5a2 2 0 00-2-2H7a2 2 0 00-2 2v16m14 0h2m-2 0h-5m-9 0H3m2 0h5M9 7h1m-1 4h1m4-4h1m-1 4h1m-5 10v-5a1 1 0 011-1h2a1 1 0 011 1v5m-4 0h4" />
+                </svg>
+              </div>
+              <div>
+                <p className="font-medium text-gray-900">Add Shop</p>
+                <p className="text-sm text-gray-600">Register a new shop</p>
+              </div>
+            </button>
+          </div>
+        </div>
+      </div>
+
+      {/* Recent Activity */}
+      <div className="bg-white rounded-lg shadow">
+        <div className="px-6 py-4 border-b border-gray-200">
+          <h2 className="text-lg font-medium text-gray-900">Recent Shopping Events</h2>
+        </div>
+        <div className="p-6">
+          <div className="text-center py-8">
+            <svg className="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 48 48">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M20 7l-8-4-8 4m16 0l-8 4m8-4v10l-8 4m0-10L4 7m8 4v10M4 7v10l8 4" />
+            </svg>
+            <h3 className="mt-2 text-sm font-medium text-gray-900">No shopping events yet</h3>
+            <p className="mt-1 text-sm text-gray-500">Get started by adding your first purchase!</p>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default Dashboard; 
--- a/frontend/src/components/GroceryList.tsx
+++ b/frontend/src/components/GroceryList.tsx
@ -0,0 +1,142 @@
+import React, { useState, useEffect } from 'react';
+import { Grocery } from '../types';
+import { groceryApi } from '../services/api';
+
+const GroceryList: React.FC = () => {
+  const [groceries, setGroceries] = useState<Grocery[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+
+  useEffect(() => {
+    fetchGroceries();
+  }, []);
+
+  const fetchGroceries = async () => {
+    try {
+      setLoading(true);
+      const response = await groceryApi.getAll();
+      setGroceries(response.data);
+    } catch (err) {
+      setError('Failed to fetch groceries');
+      console.error('Error fetching groceries:', err);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleDelete = async (id: number) => {
+    if (window.confirm('Are you sure you want to delete this grocery item?')) {
+      try {
+        await groceryApi.delete(id);
+        setGroceries(groceries.filter(g => g.id !== id));
+      } catch (err) {
+        setError('Failed to delete grocery');
+        console.error('Error deleting grocery:', err);
+      }
+    }
+  };
+
+  if (loading) {
+    return (
+      <div className="flex justify-center items-center h-64">
+        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-500"></div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <div className="flex justify-between items-center">
+        <h1 className="text-2xl font-bold text-gray-900">Groceries</h1>
+        <button className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded">
+          Add New Grocery
+        </button>
+      </div>
+
+      {error && (
+        <div className="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded">
+          {error}
+        </div>
+      )}
+
+      <div className="bg-white shadow rounded-lg overflow-hidden">
+        {groceries.length === 0 ? (
+          <div className="text-center py-12">
+            <svg className="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 48 48">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M20 7l-8-4-8 4m16 0l-8 4m8-4v10l-8 4m0-10L4 7m8 4v10M4 7v10l8 4" />
+            </svg>
+            <h3 className="mt-2 text-sm font-medium text-gray-900">No groceries</h3>
+            <p className="mt-1 text-sm text-gray-500">Get started by adding your first grocery item.</p>
+          </div>
+        ) : (
+          <table className="min-w-full divide-y divide-gray-200">
+            <thead className="bg-gray-50">
+              <tr>
+                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
+                  Name
+                </th>
+                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
+                  Price
+                </th>
+                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
+                  Category
+                </th>
+                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
+                  Weight
+                </th>
+                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
+                  Organic
+                </th>
+                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
+                  Actions
+                </th>
+              </tr>
+            </thead>
+            <tbody className="bg-white divide-y divide-gray-200">
+              {groceries.map((grocery) => (
+                <tr key={grocery.id} className="hover:bg-gray-50">
+                  <td className="px-6 py-4 whitespace-nowrap">
+                    <div className="text-sm font-medium text-gray-900">{grocery.name}</div>
+                  </td>
+                  <td className="px-6 py-4 whitespace-nowrap">
+                    <div className="text-sm text-gray-900">${grocery.price.toFixed(2)}</div>
+                  </td>
+                  <td className="px-6 py-4 whitespace-nowrap">
+                    <span className="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-blue-100 text-blue-800">
+                      {grocery.category}
+                    </span>
+                  </td>
+                  <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
+                    {grocery.weight ? `${grocery.weight}${grocery.weight_unit}` : '-'}
+                  </td>
+                  <td className="px-6 py-4 whitespace-nowrap">
+                    <span className={`px-2 inline-flex text-xs leading-5 font-semibold rounded-full ${
+                      grocery.organic 
+                        ? 'bg-green-100 text-green-800' 
+                        : 'bg-gray-100 text-gray-800'
+                    }`}>
+                      {grocery.organic ? 'Organic' : 'Conventional'}
+                    </span>
+                  </td>
+                  <td className="px-6 py-4 whitespace-nowrap text-sm font-medium">
+                    <button className="text-indigo-600 hover:text-indigo-900 mr-3">
+                      Edit
+                    </button>
+                    <button 
+                      onClick={() => handleDelete(grocery.id)}
+                      className="text-red-600 hover:text-red-900"
+                    >
+                      Delete
+                    </button>
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default GroceryList; 
--- a/frontend/src/components/ShopList.tsx
+++ b/frontend/src/components/ShopList.tsx
@ -0,0 +1,109 @@
+import React, { useState, useEffect } from 'react';
+import { Shop } from '../types';
+import { shopApi } from '../services/api';
+
+const ShopList: React.FC = () => {
+  const [shops, setShops] = useState<Shop[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+
+  useEffect(() => {
+    fetchShops();
+  }, []);
+
+  const fetchShops = async () => {
+    try {
+      setLoading(true);
+      const response = await shopApi.getAll();
+      setShops(response.data);
+    } catch (err) {
+      setError('Failed to fetch shops');
+      console.error('Error fetching shops:', err);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  if (loading) {
+    return (
+      <div className="flex justify-center items-center h-64">
+        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-500"></div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <div className="flex justify-between items-center">
+        <h1 className="text-2xl font-bold text-gray-900">Shops</h1>
+        <button className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded">
+          Add New Shop
+        </button>
+      </div>
+
+      {error && (
+        <div className="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded">
+          {error}
+        </div>
+      )}
+
+      <div className="bg-white shadow rounded-lg overflow-hidden">
+        {shops.length === 0 ? (
+          <div className="text-center py-12">
+            <svg className="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 48 48">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 21V5a2 2 0 00-2-2H7a2 2 0 00-2 2v16m14 0h2m-2 0h-5m-9 0H3m2 0h5M9 7h1m-1 4h1m4-4h1m-1 4h1m-5 10v-5a1 1 0 011-1h2a1 1 0 011 1v5m-4 0h4" />
+            </svg>
+            <h3 className="mt-2 text-sm font-medium text-gray-900">No shops</h3>
+            <p className="mt-1 text-sm text-gray-500">Get started by adding your first shop.</p>
+          </div>
+        ) : (
+          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 p-6">
+            {shops.map((shop) => (
+              <div key={shop.id} className="bg-white border border-gray-200 rounded-lg p-6 hover:shadow-md transition-shadow">
+                <div className="flex items-center justify-between mb-4">
+                  <h3 className="text-lg font-medium text-gray-900">{shop.name}</h3>
+                  <div className="flex space-x-2">
+                    <button className="text-indigo-600 hover:text-indigo-900 text-sm">
+                      Edit
+                    </button>
+                    <button className="text-red-600 hover:text-red-900 text-sm">
+                      Delete
+                    </button>
+                  </div>
+                </div>
+                
+                <div className="space-y-2">
+                  <div className="flex items-center text-sm text-gray-600">
+                    <svg className="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17.657 16.657L13.414 20.9a1.998 1.998 0 01-2.827 0l-4.244-4.243a8 8 0 1111.314 0z" />
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 11a3 3 0 11-6 0 3 3 0 016 0z" />
+                    </svg>
+                    {shop.city}
+                  </div>
+                  
+                  {shop.address && (
+                    <div className="flex items-start text-sm text-gray-600">
+                      <svg className="w-4 h-4 mr-2 mt-0.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 8l7.89 7.89a2 2 0 002.83 0L21 8M5 19h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z" />
+                      </svg>
+                      {shop.address}
+                    </div>
+                  )}
+                  
+                  <div className="flex items-center text-sm text-gray-600">
+                    <svg className="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z" />
+                    </svg>
+                    Added {new Date(shop.created_at).toLocaleDateString()}
+                  </div>
+                </div>
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default ShopList; 
--- a/frontend/src/components/ShoppingEventForm.tsx
+++ b/frontend/src/components/ShoppingEventForm.tsx
@ -0,0 +1,253 @@
+import React, { useState, useEffect } from 'react';
+import { Shop, Grocery, ShoppingEventCreate, GroceryInEvent } from '../types';
+import { shopApi, groceryApi, shoppingEventApi } from '../services/api';
+
+const ShoppingEventForm: React.FC = () => {
+  const [shops, setShops] = useState<Shop[]>([]);
+  const [groceries, setGroceries] = useState<Grocery[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [message, setMessage] = useState('');
+  
+  const [formData, setFormData] = useState<ShoppingEventCreate>({
+    shop_id: 0,
+    date: new Date().toISOString().split('T')[0],
+    total_amount: undefined,
+    notes: '',
+    groceries: []
+  });
+
+  const [selectedGroceries, setSelectedGroceries] = useState<GroceryInEvent[]>([]);
+  const [newGroceryItem, setNewGroceryItem] = useState<GroceryInEvent>({
+    grocery_id: 0,
+    amount: 1
+  });
+
+  useEffect(() => {
+    fetchShops();
+    fetchGroceries();
+  }, []);
+
+  const fetchShops = async () => {
+    try {
+      const response = await shopApi.getAll();
+      setShops(response.data);
+    } catch (error) {
+      console.error('Error fetching shops:', error);
+    }
+  };
+
+  const fetchGroceries = async () => {
+    try {
+      const response = await groceryApi.getAll();
+      setGroceries(response.data);
+    } catch (error) {
+      console.error('Error fetching groceries:', error);
+    }
+  };
+
+  const addGroceryToEvent = () => {
+    if (newGroceryItem.grocery_id > 0 && newGroceryItem.amount > 0) {
+      setSelectedGroceries([...selectedGroceries, { ...newGroceryItem }]);
+      setNewGroceryItem({ grocery_id: 0, amount: 1 });
+    }
+  };
+
+  const removeGroceryFromEvent = (index: number) => {
+    setSelectedGroceries(selectedGroceries.filter((_, i) => i !== index));
+  };
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setLoading(true);
+    setMessage('');
+
+    try {
+      const eventData = {
+        ...formData,
+        groceries: selectedGroceries
+      };
+
+      await shoppingEventApi.create(eventData);
+      setMessage('Shopping event created successfully!');
+      
+      // Reset form
+      setFormData({
+        shop_id: 0,
+        date: new Date().toISOString().split('T')[0],
+        total_amount: undefined,
+        notes: '',
+        groceries: []
+      });
+      setSelectedGroceries([]);
+    } catch (error) {
+      setMessage('Error creating shopping event. Please try again.');
+      console.error('Error:', error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const getGroceryName = (id: number) => {
+    const grocery = groceries.find(g => g.id === id);
+    return grocery ? grocery.name : 'Unknown';
+  };
+
+  return (
+    <div className="max-w-4xl mx-auto">
+      <div className="bg-white shadow rounded-lg">
+        <div className="px-4 py-5 sm:p-6">
+          <h3 className="text-lg leading-6 font-medium text-gray-900 mb-4">
+            Add New Purchase
+          </h3>
+
+          {message && (
+            <div className={`mb-4 p-4 rounded-md ${
+              message.includes('Error') 
+                ? 'bg-red-50 text-red-700' 
+                : 'bg-green-50 text-green-700'
+            }`}>
+              {message}
+            </div>
+          )}
+
+          <form onSubmit={handleSubmit} className="space-y-6">
+            {/* Shop Selection */}
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                Shop
+              </label>
+              <select
+                value={formData.shop_id}
+                onChange={(e) => setFormData({...formData, shop_id: parseInt(e.target.value)})}
+                className="w-full border border-gray-300 rounded-md px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
+                required
+              >
+                <option value={0}>Select a shop</option>
+                {shops.map(shop => (
+                  <option key={shop.id} value={shop.id}>
+                    {shop.name} - {shop.city}
+                  </option>
+                ))}
+              </select>
+            </div>
+
+            {/* Date */}
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                Date
+              </label>
+              <input
+                type="date"
+                value={formData.date}
+                onChange={(e) => setFormData({...formData, date: e.target.value})}
+                className="w-full border border-gray-300 rounded-md px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
+                required
+              />
+            </div>
+
+            {/* Add Groceries Section */}
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                Add Groceries
+              </label>
+              <div className="flex space-x-2 mb-4">
+                <select
+                  value={newGroceryItem.grocery_id}
+                  onChange={(e) => setNewGroceryItem({...newGroceryItem, grocery_id: parseInt(e.target.value)})}
+                  className="flex-1 border border-gray-300 rounded-md px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
+                >
+                  <option value={0}>Select a grocery</option>
+                  {groceries.map(grocery => (
+                    <option key={grocery.id} value={grocery.id}>
+                      {grocery.name} - ${grocery.price} ({grocery.category})
+                    </option>
+                  ))}
+                </select>
+                <input
+                  type="number"
+                  step="0.1"
+                  min="0.1"
+                  placeholder="Amount"
+                  value={newGroceryItem.amount}
+                  onChange={(e) => setNewGroceryItem({...newGroceryItem, amount: parseFloat(e.target.value)})}
+                  className="w-24 border border-gray-300 rounded-md px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
+                />
+                <button
+                  type="button"
+                  onClick={addGroceryToEvent}
+                  className="bg-green-500 hover:bg-green-700 text-white px-4 py-2 rounded-md"
+                >
+                  Add
+                </button>
+              </div>
+
+              {/* Selected Groceries List */}
+              {selectedGroceries.length > 0 && (
+                <div className="bg-gray-50 rounded-md p-4">
+                  <h4 className="font-medium text-gray-700 mb-2">Selected Items:</h4>
+                  {selectedGroceries.map((item, index) => (
+                    <div key={index} className="flex justify-between items-center py-2 border-b last:border-b-0">
+                      <span>
+                        {getGroceryName(item.grocery_id)} x {item.amount}
+                      </span>
+                      <button
+                        type="button"
+                        onClick={() => removeGroceryFromEvent(index)}
+                        className="text-red-500 hover:text-red-700"
+                      >
+                        Remove
+                      </button>
+                    </div>
+                  ))}
+                </div>
+              )}
+            </div>
+
+            {/* Total Amount */}
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                Total Amount (optional)
+              </label>
+              <input
+                type="number"
+                step="0.01"
+                min="0"
+                placeholder="0.00"
+                value={formData.total_amount || ''}
+                onChange={(e) => setFormData({...formData, total_amount: e.target.value ? parseFloat(e.target.value) : undefined})}
+                className="w-full border border-gray-300 rounded-md px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
+              />
+            </div>
+
+            {/* Notes */}
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                Notes (optional)
+              </label>
+              <textarea
+                rows={3}
+                value={formData.notes}
+                onChange={(e) => setFormData({...formData, notes: e.target.value})}
+                className="w-full border border-gray-300 rounded-md px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500"
+                placeholder="Any additional notes about this purchase..."
+              />
+            </div>
+
+            {/* Submit Button */}
+            <div>
+              <button
+                type="submit"
+                disabled={loading || formData.shop_id === 0 || selectedGroceries.length === 0}
+                className="w-full bg-blue-500 hover:bg-blue-700 disabled:bg-gray-300 text-white font-bold py-2 px-4 rounded focus:outline-none focus:shadow-outline"
+              >
+                {loading ? 'Creating...' : 'Create Shopping Event'}
+              </button>
+            </div>
+          </form>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default ShoppingEventForm; 
--- a/frontend/src/components/ShoppingEventList.tsx
+++ b/frontend/src/components/ShoppingEventList.tsx
@ -0,0 +1,123 @@
+import React, { useState, useEffect } from 'react';
+import { ShoppingEvent } from '../types';
+import { shoppingEventApi } from '../services/api';
+
+const ShoppingEventList: React.FC = () => {
+  const [events, setEvents] = useState<ShoppingEvent[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+
+  useEffect(() => {
+    fetchEvents();
+  }, []);
+
+  const fetchEvents = async () => {
+    try {
+      setLoading(true);
+      const response = await shoppingEventApi.getAll();
+      setEvents(response.data);
+    } catch (err) {
+      setError('Failed to fetch shopping events');
+      console.error('Error fetching events:', err);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  if (loading) {
+    return (
+      <div className="flex justify-center items-center h-64">
+        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-500"></div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <div className="flex justify-between items-center">
+        <h1 className="text-2xl font-bold text-gray-900">Shopping Events</h1>
+        <button className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded">
+          Add New Event
+        </button>
+      </div>
+
+      {error && (
+        <div className="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded">
+          {error}
+        </div>
+      )}
+
+      <div className="bg-white shadow rounded-lg overflow-hidden">
+        {events.length === 0 ? (
+          <div className="text-center py-12">
+            <svg className="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 48 48">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M16 11V7a4 4 0 00-8 0v4M5 9h14l1 12H4L5 9z" />
+            </svg>
+            <h3 className="mt-2 text-sm font-medium text-gray-900">No shopping events</h3>
+            <p className="mt-1 text-sm text-gray-500">Get started by recording your first purchase.</p>
+          </div>
+        ) : (
+          <div className="space-y-4 p-6">
+            {events.map((event) => (
+              <div key={event.id} className="border border-gray-200 rounded-lg p-6 hover:shadow-md transition-shadow">
+                <div className="flex justify-between items-start mb-4">
+                  <div>
+                    <h3 className="text-lg font-medium text-gray-900">{event.shop.name}</h3>
+                    <p className="text-sm text-gray-600">{event.shop.city}</p>
+                  </div>
+                  <div className="text-right">
+                    <p className="text-sm font-medium text-gray-900">
+                      {new Date(event.date).toLocaleDateString()}
+                    </p>
+                    {event.total_amount && (
+                      <p className="text-lg font-semibold text-green-600">
+                        ${event.total_amount.toFixed(2)}
+                      </p>
+                    )}
+                  </div>
+                </div>
+
+                {event.groceries.length > 0 && (
+                  <div className="mb-4">
+                    <h4 className="text-sm font-medium text-gray-700 mb-2">Items Purchased:</h4>
+                    <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-2">
+                      {event.groceries.map((grocery) => (
+                        <div key={grocery.id} className="bg-gray-50 rounded px-3 py-2">
+                          <span className="text-sm text-gray-900">{grocery.name}</span>
+                          <span className="text-xs text-gray-600 ml-2">${grocery.price}</span>
+                        </div>
+                      ))}
+                    </div>
+                  </div>
+                )}
+
+                {event.notes && (
+                  <div className="mb-4">
+                    <h4 className="text-sm font-medium text-gray-700 mb-1">Notes:</h4>
+                    <p className="text-sm text-gray-600">{event.notes}</p>
+                  </div>
+                )}
+
+                <div className="flex justify-between items-center text-sm">
+                  <span className="text-gray-500">
+                    Event #{event.id} • {new Date(event.created_at).toLocaleDateString()}
+                  </span>
+                  <div className="flex space-x-2">
+                    <button className="text-indigo-600 hover:text-indigo-900">
+                      View Details
+                    </button>
+                    <button className="text-red-600 hover:text-red-900">
+                      Delete
+                    </button>
+                  </div>
+                </div>
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default ShoppingEventList; 
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@ -0,0 +1,12 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+} 
--- a/frontend/src/index.tsx
+++ b/frontend/src/index.tsx
@ -0,0 +1,13 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import './index.css';
+import App from './App';
+
+const root = ReactDOM.createRoot(
+  document.getElementById('root') as HTMLElement
+);
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+); 
--- a/frontend/src/services/api.ts
+++ b/frontend/src/services/api.ts
@ -0,0 +1,50 @@
+import axios from 'axios';
+import { Grocery, GroceryCreate, Shop, ShopCreate, ShoppingEvent, ShoppingEventCreate } from '../types';
+
+const BASE_URL = 'http://localhost:8000';
+
+const api = axios.create({
+  baseURL: BASE_URL,
+  headers: {
+    'Content-Type': 'application/json',
+  },
+});
+
+// Grocery API functions
+export const groceryApi = {
+  getAll: () => api.get<Grocery[]>('/groceries/'),
+  getById: (id: number) => api.get<Grocery>(`/groceries/${id}`),
+  create: (grocery: GroceryCreate) => api.post<Grocery>('/groceries/', grocery),
+  update: (id: number, grocery: Partial<GroceryCreate>) => 
+    api.put<Grocery>(`/groceries/${id}`, grocery),
+  delete: (id: number) => api.delete(`/groceries/${id}`),
+};
+
+// Shop API functions
+export const shopApi = {
+  getAll: () => api.get<Shop[]>('/shops/'),
+  getById: (id: number) => api.get<Shop>(`/shops/${id}`),
+  create: (shop: ShopCreate) => api.post<Shop>('/shops/', shop),
+  update: (id: number, shop: Partial<ShopCreate>) => 
+    api.put<Shop>(`/shops/${id}`, shop),
+  delete: (id: number) => api.delete(`/shops/${id}`),
+};
+
+// Shopping Event API functions
+export const shoppingEventApi = {
+  getAll: () => api.get<ShoppingEvent[]>('/shopping-events/'),
+  getById: (id: number) => api.get<ShoppingEvent>(`/shopping-events/${id}`),
+  create: (event: ShoppingEventCreate) => 
+    api.post<ShoppingEvent>('/shopping-events/', event),
+  update: (id: number, event: Partial<ShoppingEventCreate>) => 
+    api.put<ShoppingEvent>(`/shopping-events/${id}`, event),
+  delete: (id: number) => api.delete(`/shopping-events/${id}`),
+};
+
+// Statistics API functions
+export const statsApi = {
+  getCategories: () => api.get('/stats/categories'),
+  getShops: () => api.get('/stats/shops'),
+};
+
+export default api; 
--- a/frontend/src/types/index.ts
+++ b/frontend/src/types/index.ts
@ -0,0 +1,72 @@
+export interface Grocery {
+  id: number;
+  name: string;
+  price: number;
+  category: string;
+  organic: boolean;
+  weight?: number;
+  weight_unit: string;
+  created_at: string;
+  updated_at?: string;
+}
+
+export interface GroceryCreate {
+  name: string;
+  price: number;
+  category: string;
+  organic: boolean;
+  weight?: number;
+  weight_unit: string;
+}
+
+export interface Shop {
+  id: number;
+  name: string;
+  city: string;
+  address?: string;
+  created_at: string;
+}
+
+export interface ShopCreate {
+  name: string;
+  city: string;
+  address?: string;
+}
+
+export interface GroceryInEvent {
+  grocery_id: number;
+  amount: number;
+}
+
+export interface ShoppingEvent {
+  id: number;
+  shop_id: number;
+  date: string;
+  total_amount?: number;
+  notes?: string;
+  created_at: string;
+  shop: Shop;
+  groceries: Grocery[];
+}
+
+export interface ShoppingEventCreate {
+  shop_id: number;
+  date?: string;
+  total_amount?: number;
+  notes?: string;
+  groceries: GroceryInEvent[];
+}
+
+export interface CategoryStats {
+  category: string;
+  total_spent: number;
+  item_count: number;
+  avg_price: number;
+}
+
+export interface ShopStats {
+  shop_name: string;
+  total_spent: number;
+  visit_count: number;
+  avg_per_visit: number;
+} 
--- a/frontend/tailwind.config.js
+++ b/frontend/tailwind.config.js
@ -0,0 +1,10 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    "./src/**/*.{js,jsx,ts,tsx}",
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [],
+} 
--- a/frontend/tsconfig.json
+++ b/frontend/tsconfig.json
@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "es6"
+    ],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "noFallthroughCasesInSwitch": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "react-jsx"
+  },
+  "include": [
+    "src"
+  ]
+} 
--- a/package.json
+++ b/package.json
@ -0,0 +1,15 @@
+{
+  "name": "grocery-tracker-frontend",
+  "version": "1.0.0",
+  "description": "React frontend for grocery price tracking application",
+  "private": true,
+  "scripts": {
+    "dev": "cd frontend && npm run dev",
+    "build": "cd frontend && npm run build",
+    "install:frontend": "cd frontend && npm install",
+    "setup": "npm run install:frontend"
+  },
+  "keywords": ["grocery", "price-tracking", "shopping", "react", "fastapi", "python"],
+  "author": "",
+  "license": "MIT"
+}
Author	SHA1	Message	Date
lasse	00f18baa2d	Initial Version	2025-05-23 20:44:23 +02:00
lasse	d6ce2cbcec	Initial Version	2025-05-23 20:44:03 +02:00