# 1. Use a lightweight Python image
FROM python:3.10-slim

# 2. Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONPATH=/code \
    HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH \
    HF_HOME=/code/.cache

# 3. Set working directory
WORKDIR /code

# 4. Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# 5. Create a non-root user (Hugging Face requirement)
RUN useradd -m -u 1000 user
RUN mkdir -p /code/.cache && chown -R user:user /code

# 6. Switch to the non-root user
USER user

# 7. Copy requirements and install
COPY --chown=user requirements.txt /code/requirements.txt
RUN pip install --no-cache-dir --user --upgrade -r /code/requirements.txt

# 8. Copy the entire project
COPY --chown=user . /code

# 9. Start the application
EXPOSE 7860
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]