FROM node:18-alpine

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy source code
COPY . .

# Expose port (Spaces uses 7860)
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
CMD node -e "require('http').get('http://localhost:7860/health', (r) => { process.exit(r.statusCode === 200 ? 0 : 1); })"

# Start server
CMD ["node", "src/index.js"]