FROM python:3.9-slim

WORKDIR /code

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

# Set up cache directory with proper permissions
ENV TRANSFORMERS_CACHE=/home/user/.cache/huggingface
RUN mkdir -p /home/user/.cache/huggingface && \
    chown -R user:user /home/user/.cache

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

# Copy requirements first to leverage Docker cache
COPY requirements.txt .

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

# Copy the application code
COPY . .

# Change ownership of the working directory
RUN chown -R user:user /code

# Switch to non-root user
USER user

# Expose the port the app runs on
EXPOSE 7860

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