# Multi-stage Dockerfile for Node.js + Python application
FROM node:20-alpine AS node-base

# Install Python and build dependencies in Node stage
RUN apk add --no-cache \
    python3 \
    py3-pip \
    build-base \
    python3-dev

# Install Python dependencies
COPY python-scripts/requirements.txt /tmp/requirements.txt
RUN pip3 install --no-cache-dir -r /tmp/requirements.txt

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install Node.js dependencies
RUN npm ci --only=production

# Build stage
FROM node-base AS builder

# Install all dependencies (including dev dependencies)
RUN npm ci

# Copy source code
COPY . .

# Build the application
RUN npm run build

# Production stage
FROM node-base AS production

# Copy built application from builder stage
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/package*.json ./

# Copy Python scripts
COPY --from=builder /app/python-scripts ./python-scripts

# Create non-root user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nextjs -u 1001

# Change to non-root user
USER nextjs

# Expose port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD node dist/health-check.js

# Start the application
CMD ["npm", "start"]