# Next.js frontend — multi-stage build producing the standalone server output.
FROM node:22-alpine AS builder

WORKDIR /app

COPY package.json ./
COPY package-lock.json ./

RUN npm ci

COPY . .

RUN npm run build

FROM node:22-alpine AS runner

WORKDIR /app

ARG NEXT_PUBLIC_BASE_PATH
ENV NODE_ENV=production
ENV NEXT_PUBLIC_BASE_PATH=${NEXT_PUBLIC_BASE_PATH}

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

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