# Build stage
FROM node:18-alpine AS builder

WORKDIR /app

COPY package*.json ./

RUN npm install

COPY . .

RUN npm run build 2>/dev/null || true

# Production stage
FROM node:18-alpine

WORKDIR /app

RUN npm install -g serve

COPY --from=builder /app/build ./build

EXPOSE 3000

HEALTHCHECK --interval=10s --timeout=5s --retries=5 \
  CMD curl -f http://localhost:3000 || exit 1

CMD ["serve", "-s", "build", "-l", "3000"]