# Multi-stage build for a small Next.js standalone production image.

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

FROM node:22-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
# Public Supabase config is inlined into the client bundle at build time.
# (These are public values, protected by RLS — safe to bake in.)
ARG NEXT_PUBLIC_SUPABASE_URL
ARG NEXT_PUBLIC_SUPABASE_ANON_KEY
ENV NEXT_PUBLIC_SUPABASE_URL=$NEXT_PUBLIC_SUPABASE_URL
ENV NEXT_PUBLIC_SUPABASE_ANON_KEY=$NEXT_PUBLIC_SUPABASE_ANON_KEY
RUN npm run build

FROM node:22-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=3000
ENV HOSTNAME=0.0.0.0

# Run as the unprivileged node user that ships with the image.
USER node

# Standalone output bundles only the files the server needs.
COPY --chown=node:node --from=builder /app/.next/standalone ./
COPY --chown=node:node --from=builder /app/.next/static ./.next/static
COPY --chown=node:node --from=builder /app/public ./public

EXPOSE 3000
CMD ["node", "server.js"]