FROM python:3.10-slim

# Prevent Python buffering issues
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set working directory
WORKDIR /app

# System deps (keep minimal)
RUN apt-get update && apt-get install -y \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

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

# Copy app
COPY . .

# Streamlit port (HF expects 7860)
EXPOSE 7860

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