FROM python:3.11-slim

WORKDIR /app

RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    && rm -rf /var/lib/apt/lists/*

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

COPY . .

RUN mkdir -p data model_cache

ENV FLASK_APP=app.py
ENV PYTHONUNBUFFERED=1
ENV SENTENCE_TRANSFORMERS_HOME=/app/model_cache

EXPOSE 5000

HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
    CMD curl -f http://localhost:5000/health || exit 1

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