# ── Stage 1: build ───────────────────────────────────────────────────────────
# Compiles native extensions (ckzg, asyncpg, cryptography) so the final image
# only carries the compiled .so files, not the build toolchain.
FROM python:3.11-slim AS builder

RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc build-essential cmake libpq-dev libffi-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /build

RUN pip install --no-cache-dir --upgrade pip wheel setuptools

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


# ── Stage 2: runtime ─────────────────────────────────────────────────────────
FROM python:3.11-slim

# Only runtime shared libs needed (libpq for asyncpg, libgomp for numpy if used)
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 curl \
    && rm -rf /var/lib/apt/lists/*

# Copy compiled packages from builder
COPY --from=builder /install /usr/local

WORKDIR /app
COPY . .

RUN chmod +x entrypoint.sh

# Non-root user
RUN useradd -m appuser && chown -R appuser /app
USER appuser

EXPOSE 8000

ENTRYPOINT ["./entrypoint.sh"]