# ── Stage 1: C++ Build ───────────────────────────────────────────────
FROM gcc:13 AS cpp-builder

RUN apt-get update && apt-get install -y cmake && rm -rf /var/lib/apt/lists/*

WORKDIR /build
COPY cpp/ ./cpp/
COPY CMakeLists.txt .

RUN cmake -B build -S . -DCMAKE_BUILD_TYPE=Release \
    && cmake --build build --target autoforge-dag


# ── Stage 2: Python Runtime ─────────────────────────────────────────
FROM python:3.12-slim

WORKDIR /app

# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend
COPY backend/ ./backend/

# Copy frontend
COPY frontend/ ./frontend/

# Copy C++ binary from build stage
COPY --from=cpp-builder /build/build/cpp/autoforge-dag /app/bin/autoforge-dag

# Create data directory
RUN mkdir -p /app/data

# Environment
ENV PYTHONUNBUFFERED=1
ENV DATABASE_URL=sqlite+aiosqlite:///data/autoforge.db

EXPOSE 8000

CMD ["python", "-m", "backend.main"]