# ─── SmartClass Edge Node ────────────────────────────────────────────
FROM python:3.11-slim AS base

LABEL maintainer="SmartClass Team"
LABEL description="SmartClass Edge Node - Face Recognition Pipeline"

# System dependencies for OpenCV, FAISS, and camera access
RUN apt-get update && apt-get install -y --no-install-recommends \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    libgl1-mesa-glx \
    libv4l-dev \
    wget \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN useradd -m -s /bin/bash smartclass
WORKDIR /opt/smartclass

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

# Copy source code
COPY src/ ./src/
COPY config/ ./config/

# Create data directories
RUN mkdir -p /opt/smartclass/data/deploy \
    /opt/smartclass/data/offline_queue \
    /opt/smartclass/models \
    && chown -R smartclass:smartclass /opt/smartclass

# Set environment
ENV PYTHONPATH=/opt/smartclass/src
ENV PYTHONUNBUFFERED=1

# Switch to non-root user
USER smartclass

# Expose metrics port
EXPOSE 9100

# Health check
HEALTHCHECK --interval=15s --timeout=5s --retries=3 --start-period=45s \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:9100/metrics')"

# Start edge pipeline
CMD ["python", "-m", "edge_pipeline"]