# IMBARAGA frontend (Next.js, standalone output) — container image
# Build args: pass NEXT_PUBLIC_* values matching the deployed environment.
# NEXT_PUBLIC_SUPABASE_URL, NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY and
# NEXT_PUBLIC_AGENT_API_URL ARE REQUIRED for any production build (there is no
# localhost fallback baked into production bundles); optionally set
# NEXT_PUBLIC_APP_URL so robots/sitemap/metadata use the public host.
FROM node:20-alpine AS deps
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci

FROM node:20-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
ARG NEXT_PUBLIC_SUPABASE_URL
ARG NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY
ARG NEXT_PUBLIC_AGENT_API_URL
ARG NEXT_PUBLIC_APP_URL
ENV NEXT_PUBLIC_SUPABASE_URL=$NEXT_PUBLIC_SUPABASE_URL \
    NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY=$NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY \
    NEXT_PUBLIC_AGENT_API_URL=$NEXT_PUBLIC_AGENT_API_URL \
    NEXT_PUBLIC_APP_URL=$NEXT_PUBLIC_APP_URL
# Fail fast when required public env values are missing instead of shipping a
# frontend whose API/Supabase calls point at nothing.
RUN test -n "$NEXT_PUBLIC_SUPABASE_URL" \
    && test -n "$NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY" \
    && test -n "$NEXT_PUBLIC_AGENT_API_URL" \
    || (echo "ERROR: NEXT_PUBLIC_SUPABASE_URL, NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY, NEXT_PUBLIC_AGENT_API_URL build-args are required" && exit 1)
RUN npm run build

FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production \
    NEXT_TELEMETRY_DISABLED=1 \
    PORT=7860 \
    HOSTNAME=0.0.0.0
RUN addgroup -S nodejs && adduser -S nextjs -G nodejs
COPY --from=builder /app/public ./public
# This Next.js version emits standalone output nested under the project name.
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone/frontend ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
USER nextjs
# Hugging Face Spaces expect app_port 7860; Cloud Run overrides via $PORT.
EXPOSE 7860
CMD ["node", "server.js"]