FROM node:22-alpine AS builder
WORKDIR /app

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

COPY . .

ENV NODE_ENV=production
RUN npm run build

# --- Runner stage ---
FROM node:22-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV PORT=4000

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

EXPOSE 4000
CMD ["node", "server.js"]