# Use light python slim image
FROM python:3.11-slim

# Prevent python from writing pyc files to disk and buffering stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV NBU_INSIGHTS_RUNNING=1

WORKDIR /app

# Install system utilities needed for building packages
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

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

# Copy application files
COPY . .

# Expose port used by Streamlit
EXPOSE 8501

# Run streamlit server bound to port 8501
CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]