FROM python:3.12-slim

WORKDIR /app

# Install dependencies
COPY requirements.txt .

RUN pip install --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy your application code
COPY . .

EXPOSE 5000

CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:5000", "ConstructionComplexityCalculator:app"]