FROM nginx:1.27-alpine AS runtime

# Serve SPA from port 7860 (Hugging Face Spaces default for Docker apps)
COPY nginx.conf /etc/nginx/conf.d/default.conf
COPY dist /usr/share/nginx/html

EXPOSE 7860
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget -q -O /dev/null http://127.0.0.1:7860/ || exit 1

CMD ["nginx", "-g", "daemon off;"]