# ──────────────────────────────────────────────
# Stage 1: Install dependencies
# ──────────────────────────────────────────────
FROM node:20-slim AS deps
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci

# ──────────────────────────────────────────────
# Stage 2: Build the Next.js app
# ──────────────────────────────────────────────
FROM node:20-slim AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ARG NEXT_PUBLIC_API_URL=http://localhost:8000/api
ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}
ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

# ──────────────────────────────────────────────
# Stage 3: Production runner
# ──────────────────────────────────────────────
FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

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