FROM python:3.11-slim

WORKDIR /app

ENV PYTHONUNBUFFERED=1 \
    TZ=Asia/Shanghai

RUN apt-get update && apt-get install -y --no-install-recommends tzdata \
    && ln -snf /usr/share/zoneinfo/$TZ /etc/localtime \
    && echo $TZ > /etc/timezone \
    && rm -rf /var/lib/apt/lists/*

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

COPY . /app

RUN mkdir -p /app/data

EXPOSE 21450

CMD ["python", "run.py"]