FROM python:3.12-slim

ENV PYTHONUNBUFFERED=1
ENV HF_HOME=/app/.cache/huggingface
ENV SENTENCE_TRANSFORMERS_HOME=/app/.cache/sentence-transformers

WORKDIR /app

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

COPY . .

RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('all-MiniLM-L6-v2')"

CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "--threads", "1", "--timeout", "3600", "ui_app:app"]