FROM python:3.10-slim

# Create user with UID 1000
RUN useradd -m -u 1000 user

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend files
COPY --chown=user:user . .

# Set environment variables
ENV UPLOAD_DIR=/app/uploads
RUN mkdir -p /app/uploads && chown -R user:user /app/uploads

# Switch to the non-root user
USER user

# Expose port (default for HF Spaces is 7860)
EXPOSE 7860

# Run FastAPI app on port 7860
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]