# Use an official Python runtime as the base image
FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies (e.g., for FAISS)
RUN apt-get update && apt-get install -y \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements file
COPY requirements.txt .

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

# Copy the application code
COPY main.py .

# Create a non-root user and set permissions
RUN useradd -m -u 1000 appuser \
    && mkdir -p /app/.cache \
    && chown -R appuser:appuser /app

# Switch to the non-root user
USER appuser

# Expose the port (Hugging Face Spaces expects 7860)
EXPOSE 7860

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