# syntax=docker/dockerfile:1.7
FROM node:20-alpine AS deps
WORKDIR /app
COPY package.json package-lock.json* ./
# BuildKit cache mount → npm cache переживает между билдами, install в 5-10x быстрее
RUN --mount=type=cache,target=/root/.npm,sharing=locked \
    npm ci --prefer-offline --no-audit --no-fund

FROM node:20-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_OPTIONS="--max-old-space-size=4096"
# BuildKit cache mount → .next/cache (incremental TS/swc) переживает между билдами
RUN --mount=type=cache,target=/app/.next/cache,sharing=locked \
    npm run build

FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

RUN addgroup --system --gid 1001 nodejs && \
    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"]