FROM python:3.10-slim

WORKDIR /app

# Install system compile dependencies for psycopg2 and numpy/scipy
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy and install python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend codebase
COPY backend/ ./backend/

# Expose standard backend port
EXPOSE 8000

ENV PYTHONPATH=/app

# Start FastAPI application via production-configured Uvicorn server
CMD ["uvicorn", "backend.api.main:app", "--host", "0.0.0.0", "--port", "8000"]