# Multi-stage build for IPMI Fan Control

# Backend stage
FROM python:3.11-slim AS backend-builder

WORKDIR /app

# Install system dependencies for ipmitool
RUN apt-get update && apt-get install -y \
    ipmitool \
    gcc \
    libffi-dev \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

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

# Copy backend source
COPY backend/ ./backend/

# Frontend stage
FROM node:20-alpine AS frontend-builder

WORKDIR /app/frontend

# Install dependencies
COPY frontend/package*.json ./
RUN npm install

# Copy frontend source and build
COPY frontend/ .
RUN npm run build

# Final stage
FROM python:3.11-slim

WORKDIR /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    ipmitool \
    && rm -rf /var/lib/apt/lists/*

# Copy Python dependencies from backend builder
COPY --from=backend-builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=backend-builder /usr/local/bin /usr/local/bin

# Copy backend application
COPY --from=backend-builder /app/backend /app/backend

# Copy frontend build
COPY --from=frontend-builder /app/frontend/dist /app/frontend/dist

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

# Set Python path to include backend directory
ENV PYTHONPATH=/app
ENV DATA_DIR=/app/data

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/api/health')" || exit 1

# Start command - use absolute module path
CMD ["python", "-m", "uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8000", "--proxy-headers"]