FROM python:3.11-slim

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PIP_NO_CACHE_DIR=1 \
    HF_HOME=/tmp/hf_cache \
    TRANSFORMERS_CACHE=/tmp/hf_cache/transformers \
    SENTENCE_TRANSFORMERS_HOME=/tmp/hf_cache/sentence-transformers

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 --upgrade pip && \
    pip install torch --index-url https://download.pytorch.org/whl/cpu && \
    pip install -r requirements.txt

COPY greenrouting /app/greenrouting
COPY models /app/models
COPY partner_registry.py mapper.py app.py /app/

RUN mkdir -p /tmp/hf_cache && chmod -R 777 /tmp/hf_cache

EXPOSE 7860
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]