FROM python:3.12-slim

# Pull the uv binary from the official release image — no pip bootstrap needed.
COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv

WORKDIR /app

# Install Python dependencies first (cache-friendly layer).
COPY backend/requirements.txt ./backend/requirements.txt
RUN uv pip install --system --no-cache -r backend/requirements.txt

# App code + the static site it serves. The config module derives the repo
# root from its own path, so this backend/ + frontend/ layout must be kept.
COPY backend/ ./backend/
COPY frontend/ ./frontend/

ENV PYTHONUNBUFFERED=1

# HuggingFace Spaces (Docker SDK) reaches the container on this port.
EXPOSE 7860

# --app-dir puts backend/ on sys.path so the `app` package resolves.
CMD ["uvicorn", "app.main:app", "--app-dir", "backend", "--host", "0.0.0.0", "--port", "7860"]