FROM node:20-alpine AS deps
WORKDIR /app

COPY package*.json ./
RUN npm ci

FROM deps AS build
WORKDIR /app
COPY . .

# Build-time API endpoint override; defaults handled in code.
ARG VITE_API_URL
ENV VITE_API_URL=${VITE_API_URL}

RUN npm run build

FROM nginx:1.27-alpine AS runtime
COPY nginx.conf /etc/nginx/conf.d/default.conf
COPY --from=build /app/dist /usr/share/nginx/html

EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]