FROM node:20-alpine AS dev
WORKDIR /app
COPY package.json package-lock.json* ./
RUN npm install
COPY . .

FROM dev AS build
RUN npm run build

FROM nginx:1.25-alpine AS production
COPY --from=build /app/dist /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf
EXPOSE 80

HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
    CMD wget -qO- http://localhost/ || exit 1