FROM python:3.13.5-slim

WORKDIR /app

RUN apt-get update && apt-get install -y \
    build-essential curl git && rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./
COPY src/ ./src/

RUN pip3 install --no-cache-dir -r requirements.txt

# HF provides $PORT; default to 7860 if not set (local runs)
ENV PORT=7860
EXPOSE 7860

# Healthcheck must hit the bound port
HEALTHCHECK CMD bash -lc 'curl --fail http://localhost:${PORT}/_stcore/health || exit 1'

# Use shell so ${PORT} expands (array form won't expand env vars)
CMD bash -lc 'streamlit run src/streamlit_app.py --server.address=0.0.0.0 --server.port=${PORT}'