FROM python:3.11-slim

# Prevent .pyc files and enable unbuffered stdout for structured logging
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

WORKDIR /app

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

# Copy project source
COPY . .

EXPOSE 7860

CMD ["uvicorn", "server.app:app", "--host", "0.0.0.0", "--port", "7860"]