FROM node:lts-alpine as builder

WORKDIR /app

COPY package.json package-lock.json ./
RUN npm ci --prefer-offline

COPY . .
RUN npm run build

# Production stage
FROM nginx:stable-alpine

# Copy build artifacts from the builder stage
COPY --from=builder /app/build /usr/share/nginx/html

# Expose port 80 (standard HTTP port)
EXPOSE 80

# Start Nginx when the container launches
CMD ["nginx", "-g", "daemon off;"]