# ─── Stage 1: Build ───────────────────────────────────────────
FROM node:26-alpine AS build
WORKDIR /app

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

COPY . .

# Platzhalter-Env für Build (echte Werte kommen via Docker-Env zur Laufzeit)
ENV NEXTAUTH_URL=http://localhost
ENV NEXTAUTH_SECRET=build-placeholder
ENV KEYCLOAK_CLIENT_ID=sitelog-frontend
ENV KEYCLOAK_CLIENT_SECRET=build-placeholder
ENV KEYCLOAK_ISSUER=http://localhost:8080/realms/sitelog
ENV INTERNAL_API_URL=http://nginx/api

RUN npm run build

# ─── Stage 2: Runtime ─────────────────────────────────────────
FROM node:26-alpine AS runtime
WORKDIR /app

ENV NODE_ENV=production
ENV PORT=3000
ENV HOSTNAME=0.0.0.0

# Standalone Output
COPY --from=build /app/.next/standalone ./
COPY --from=build /app/.next/static ./.next/static
COPY --from=build /app/public ./public

EXPOSE 3000

CMD ["node", "server.js"]
