FROM python:3.10-slim

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

WORKDIR /code

# Copy requirements file
COPY ./requirements.txt /code/requirements.txt

# Upgrade pip and install requirements
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r /code/requirements.txt

# Create and use non-root user
RUN useradd -m user
USER user

# Set environment variables
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH \
    PYTHONUNBUFFERED=1

WORKDIR $HOME/app

# Copy application code
COPY --chown=user . $HOME/app

# Run the application
CMD ["python", "-m", "uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]