FROM node:lts AS builder

WORKDIR /workspace

# Copy the built static site by taking the book directory content as-is
COPY book dist

# Final runtime image: serve the static site with a tiny Node server
FROM node:lts

WORKDIR /app

# Copy the built assets from the builder stage
COPY --from=builder /workspace/dist ./dist

# Install a small static file server
RUN npm install -g http-server

# Expose port for the static server
EXPOSE 8080

# Healthcheck and start server
HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 CMD curl -f http://localhost:8080/index.html || exit 1

CMD ["http-server", "./dist", "-p", "8080"]