FROM python:3.11-slim

WORKDIR /app

# System deps for epyt / EPANET native libs
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    libgomp1 \
    curl \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

# HF Spaces requires port 7860
EXPOSE 7860

CMD ["python", "server.py"]