# =============================================================================
# EVG ULTIMATE TEAM - Docker Build for Hugging Face Spaces
# =============================================================================
# Multi-stage build: Frontend (Node.js) + Backend (Python) in single container

# =============================================================================
# Stage 1: Build Frontend (React + Vite)
# =============================================================================
FROM node:20-alpine AS frontend-builder

WORKDIR /app/frontend

# Copy frontend code
COPY frontend/ ./

# Install dependencies and build the app
RUN npm ci && npm run build

# =============================================================================
# Stage 2: Setup Backend + Serve Frontend
# =============================================================================
FROM python:3.11-slim

WORKDIR /app

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

# Copy backend requirements
COPY backend/requirements.txt ./backend/

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

# Copy backend source code
COPY backend/ ./backend/

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

# Create directory for SQLite database (persistent storage)
RUN mkdir -p /app/data

# Set environment variables for production
ENV PYTHONUNBUFFERED=1 \
    ENVIRONMENT=production \
    DATABASE_URL=sqlite:///../data/evg_ultimate_team.db \
    API_HOST=0.0.0.0 \
    API_PORT=7860 \
    CORS_ORIGINS=* \
    DEBUG=false

# Expose Hugging Face Spaces default port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:7860/health', timeout=5).read()"

# Change to backend directory for proper Python module resolution
WORKDIR /app/backend

# Run the application
CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]