# Multi-stage build for Next.js dashboard
# ---- Builder ----
FROM node:20-alpine AS builder
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci
COPY . .
RUN npm run build

# ---- Production ----
FROM node:20-alpine AS runner
ENV NODE_ENV=production

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

WORKDIR /app
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"

HEALTHCHECK --interval=15s --timeout=5s --start-period=20s --retries=3 \\
    CMD wget --no-verbose --tries=1 --spider http://localhost:${PORT}/ || exit 1

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