FROM python:3.13-slim

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential gcc \
    python3-dev \
    libssl-dev libffi-dev \
    && rm -rf /var/lib/apt/lists/*

RUN python -m pip install --upgrade pip setuptools wheel

COPY requirements.txt ./requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

COPY . /app/

EXPOSE 8000
CMD ["python3", "app.py"]