FROM node:20-alpine AS base

# ── Install ALL deps (dev included, needed for build) ───────
FROM base AS deps
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci

# ── Build ───────────────────────────────────────────────────
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY package.json package-lock.json next.config.ts tsconfig.json postcss.config.mjs eslint.config.mjs ./
COPY src ./src
COPY public ./public

ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

# ── Runtime (minimal) ──────────────────────────────────────
FROM base AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV PORT=7860
ENV HOSTNAME=0.0.0.0
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 7860

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