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

# ── Stage 2: Build ────────────────────────────────────
FROM node:20-alpine AS build
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Dummy env vars for Next.js build-time page data collection
ENV NEXT_PUBLIC_BACKEND_URL=http://localhost:4016
ENV NEXT_PUBLIC_PLATFORM_URL=http://localhost:4003

RUN npm run build

# ── Stage 3: Runtime ──────────────────────────────────
FROM node:20-alpine AS runtime
WORKDIR /app
ENV NODE_ENV=production

COPY --from=build /app/.next/standalone ./
COPY --from=build /app/.next/static ./.next/static
COPY --from=build /app/public ./public

EXPOSE 3000

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