FROM node:20-slim AS builder

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

# Build-time public vars — baked into the Next.js bundle by the CI workflow
ARG NEXT_PUBLIC_C2_URL
ARG NEXT_PUBLIC_FIREBASE_API_KEY
ARG NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN
ARG NEXT_PUBLIC_FIREBASE_PROJECT_ID
ARG NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET
ARG NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID
ARG NEXT_PUBLIC_FIREBASE_APP_ID
ARG NEXT_PUBLIC_FIRESTORE_DATABASE

RUN npm run build

FROM node:20-slim AS runner
WORKDIR /app
ENV NODE_ENV=production

COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static

EXPOSE 3000
CMD ["node", "server.js"]