# syntax=docker/dockerfile:1

# ---- deps: install dependencies only (cached layer) ----
FROM node:20-alpine AS deps
WORKDIR /app
COPY package.json package-lock.json* ./
RUN npm ci

# ---- builder: build the Next.js app ----
FROM node:20-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

# ---- runner: minimal production image ----
FROM node:20-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=3000
ENV HOSTNAME=0.0.0.0

RUN addgroup --system --gid 1001 nodejs \
  && adduser --system --uid 1001 nextjs \
  && mkdir -p /app/data/uploads \
  && chown -R nextjs:nodejs /app/data

# Admin-panel content (content.json + uploaded images) lives here — keep it on a volume.
ENV DATA_DIR=/app/data
VOLUME ["/app/data"]

# Standalone output — requires `output: "standalone"` in next.config.ts (see note below)
COPY --from=builder --chown=nextjs:nodejs /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

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