FROM python:3.12-slim

# system deps for geopandas / spatial libs (optional but recommended)
RUN apt-get update && apt-get install -y \
    libgdal-dev libspatialindex-dev gcc g++ \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

# back-end code
COPY app.py .

# front-end GUI
COPY static ./static

# expose port that Spaces expects
EXPOSE 7860

CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]