# --- deps ------------------------------------------------------------------
FROM node:22-alpine AS deps
WORKDIR /app
COPY package*.json ./
RUN npm ci

# --- build (Next.js standalone output) -------------------------------------
FROM node:22-alpine AS build
WORKDIR /app
# NEXT_PUBLIC_* values are inlined at build time.
ARG NEXT_PUBLIC_API_URL=http://localhost:4000
ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npm run build

# --- runtime ---------------------------------------------------------------
FROM node:22-alpine AS runtime
WORKDIR /app
ENV NODE_ENV=production
ENV PORT=3000
ENV HOSTNAME=0.0.0.0
COPY --from=build /app/public ./public
COPY --from=build /app/.next/standalone ./
COPY --from=build /app/.next/static ./.next/static
EXPOSE 3000
CMD ["node", "server.js"]