# Multi-stage build: Frontend + Backend + Worker in one image
# ============================================================

# Stage 1: Build frontend
FROM node:20-alpine AS frontend-builder

WORKDIR /app/frontend
COPY frontend/package.json frontend/yarn.lock ./
RUN yarn install --frozen-lockfile

COPY frontend/ ./
RUN yarn build

# Stage 2: Python runtime
FROM python:3.11-slim AS runtime

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

# Copy backend code
COPY backend/ ./

# Copy frontend build to static folder
COPY --from=frontend-builder /app/frontend/dist ./static

# Create necessary directories
RUN mkdir -p uploads reports uploads/scan_data instance

# Environment variables
ENV FLASK_ENV=production
ENV PYTHONUNBUFFERED=1

# Expose port
EXPOSE 5000

# Default command: run web server
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "run:app"]