FROM node:20-alpine AS builder

WORKDIR /app
COPY package.json ./
RUN npm install

COPY . .

# Empty VITE_API_URL = use relative URLs (nginx proxies /api/ and /ws)
ARG VITE_API_URL=
ARG VITE_WS_URL=

ENV VITE_API_URL=$VITE_API_URL
ENV VITE_WS_URL=$VITE_WS_URL

RUN npm run build

FROM nginx:alpine
COPY --from=builder /app/dist /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]