FROM python:3.11-slim

WORKDIR /app

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

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

RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('intfloat/multilingual-e5-base')"
RUN python -c "from sentence_transformers import CrossEncoder; CrossEncoder('cross-encoder/ms-marco-MiniLM-L-6-v2')"
RUN mkdir -p /app/.cache && python -c "import urllib.request; urllib.request.urlretrieve('https://dl.fbaipublicfiles.com/fasttext/supervised-models/lid.176.ftz', '/app/.cache/lid.176.ftz')"

COPY . .

RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

EXPOSE 7860

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