FROM python:3.11-slim

# Set up user for proper permissions
RUN useradd -m -u 1000 appuser

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create app directory
WORKDIR /app

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

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

# Copy application code
COPY . .

# Change ownership to appuser
RUN chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

# Expose the port
EXPOSE 7860

# Start the Streamlit app
CMD ["streamlit", "run", "streamlit_app.py", "--server.port=7860", "--server.address=0.0.0.0"]