# Build stage
FROM python:3.11-slim-bullseye AS builder

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    DEBIAN_FRONTEND=noninteractive

WORKDIR /build

# Install minimal dependencies and Python packages
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/* \
    && pip install --upgrade pip

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

# Runtime stage
FROM python:3.11-slim-bullseye

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PORT=7860 \
    DEBUG=false

WORKDIR /app

# Copy Python packages and application files
COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY more_core.py degpt.py ./

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Healthcheck and entrypoint
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:${PORT}/health || exit 1

EXPOSE ${PORT}

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