FROM python:3.10-slim

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

# Create a non-root user for security
RUN useradd -m -u 1000 user
USER user

# Set PATH for user local binaries
ENV PATH="/home/user/.local/bin:$PATH"

# Set working directory
WORKDIR /app

# Copy requirements first for better Docker layer caching
COPY --chown=user requirements.txt requirements.txt

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Create models directory with proper permissions
RUN mkdir -p /app/models

# Copy utils directory (model classes)
COPY --chown=user ./utils /app/utils

# Copy main application
COPY --chown=user ./app.py /app/

# Copy any additional files you might have
COPY --chown=user ./*.py /app/

# Expose port 7860 (required for HuggingFace Spaces)
EXPOSE 7860

# Command to run the application
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]