FROM python:3.10-slim

# Install minimal build tools for some Python wheels
RUN apt-get update && apt-get install -y --no-install-recommends \
	build-essential \
	&& rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Install dependencies first for better layer caching
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

ENV PYTHONUNBUFFERED=1 \
	STREAMLIT_BROWSER_GATHERUSAGESTATS=false

# Hugging Face Spaces injects $PORT; run headless and disable CORS/XSFR
CMD ["bash", "-lc", "streamlit run app.py --server.address 0.0.0.0 --server.port ${PORT:-7860} --server.headless true --server.enableCORS false --server.enableXsrfProtection false"]