FROM python:3.11-slim

WORKDIR /app

# Install system dependencies (curl for health check)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for caching
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application
COPY app.py .

# HuggingFace Spaces expects port 7860
EXPOSE 7860

# Health check
HEALTHCHECK CMD curl --fail http://localhost:7860/_stcore/health || exit 1

# Run Streamlit on port 7860 (HuggingFace Spaces requirement)
CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]