FROM python:3.10-slim

# Set working directory
WORKDIR /app

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

# Copy requirements first for better caching
COPY requirements.txt .

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

# Copy application files only (model will be downloaded from HF)
COPY app.py .
COPY gunicorn_config.py .

# Create non-root user
RUN useradd -m -u 1000 user
RUN chown -R user:user /app
USER user

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=120s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

# Start with Gunicorn
CMD ["gunicorn", "--config", "gunicorn_config.py", "app:app"]