# syntax=docker/dockerfile:1
# aibook-fun — Next.js 16 marketing site (marketing-site/), standalone output.
#
# Build context = marketing-site/ (see .gitea/workflows/deploy.yml):
#   docker build -f deploy/docker/Dockerfile -t <image> marketing-site/
#
# Multi-stage: deps → build (next build → .next/standalone) → slim non-root runner.
# Requires `output: 'standalone'` in next.config.mjs (added on this branch).
# Node 20.9+ / 22+ required by Next 16; pin 22 LTS.

FROM node:22-alpine AS deps
WORKDIR /app
# Lockfiles first for layer caching.
COPY package.json package-lock.json ./
RUN npm ci

FROM node:22-alpine AS builder
WORKDIR /app
ENV NEXT_TELEMETRY_DISABLED=1
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npm run build

FROM node:22-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
# Next standalone ships as a single node server.js; run as non-root (uid 1001).
RUN addgroup --system --gid 1001 nodejs \
 && adduser --system --uid 1001 --ingroup nodejs nextjs

# Static assets not bundled into the standalone output.
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"]