FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple \
    PIP_TRUSTED_HOST=pypi.tuna.tsinghua.edu.cn \
    NPM_CONFIG_REGISTRY=https://registry.npmmirror.com

WORKDIR /app

# ffmpeg is required for MoviePy (audio duration + encoding).
RUN if [ -f /etc/apt/sources.list ]; then \
      sed -i 's|http://deb.debian.org/debian|https://mirrors.tuna.tsinghua.edu.cn/debian|g; s|http://security.debian.org/debian-security|https://mirrors.tuna.tsinghua.edu.cn/debian-security|g' /etc/apt/sources.list; \
    fi \
  && if [ -f /etc/apt/sources.list.d/debian.sources ]; then \
      sed -i 's|http://deb.debian.org/debian|https://mirrors.tuna.tsinghua.edu.cn/debian|g; s|http://security.debian.org/debian-security|https://mirrors.tuna.tsinghua.edu.cn/debian-security|g' /etc/apt/sources.list.d/debian.sources; \
    fi \
  && apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    fonts-dejavu-core \
    nodejs \
    npm \
  && rm -rf /var/lib/apt/lists/*

COPY requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

COPY . /app

RUN cd /app/server && npm i --omit=dev

EXPOSE 3000
CMD ["node", "/app/server/index.js"]