FROM python:3.12-slim

WORKDIR /app

# Install dependencies first (better caching)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create data directory for persistent storage
RUN mkdir -p /data

# Environment variables
ENV PORT=5000
ENV FLASK_ENV=production
ENV DATABASE_PATH=/data/app.db

EXPOSE 5000

# Run with gunicorn for production
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "2", "app:app"]