# ── Stage 1: Install dependencies ────────────────────────────────────────────
FROM oven/bun:1 AS deps

WORKDIR /app

COPY package.json bun.lock ./
RUN bun install --frozen-lockfile

# ── Stage 2: Build ────────────────────────────────────────────────────────────
FROM oven/bun:1 AS builder

WORKDIR /app

COPY --from=deps /app/node_modules ./node_modules
COPY . .

# NEXT_PUBLIC_* vars are baked into the client bundle at build time.
# Pass the public backend URL via --build-arg.
ARG NEXT_PUBLIC_API_URL=http://localhost:4000/api/v1
ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
ENV NEXT_TELEMETRY_DISABLED=1

RUN bun run build

# ── Stage 3: Production runner ────────────────────────────────────────────────
FROM node:22-alpine AS runner

WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

RUN addgroup --system --gid 1001 nodejs \
 && adduser  --system --uid 1001 nextjs

# standalone output + static assets
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static     ./.next/static

USER nextjs

EXPOSE 3001
ENV PORT=3001
ENV HOSTNAME=0.0.0.0

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