# ═══════════════════════════════════════════════════════════════
# FLUX SRL — Production Dockerfile (Multi-Stage)
# Next.js 16 + Prisma + next-intl + AI SDK
# ═══════════════════════════════════════════════════════════════

# ── Stage 1: Install dependencies ──
FROM node:22-alpine AS deps
# libc6-compat: glibc shim for prebuilt native binaries (Prisma engines)
# vips-dev: required for sharp on Alpine — image processing native lib
RUN apk add --no-cache libc6-compat vips-dev
WORKDIR /app

COPY package.json package-lock.json ./
# --include=optional ensures @img/sharp-linuxmusl-x64 (the Alpine sharp
# prebuilt binary) is downloaded; otherwise sharp errors at runtime.
RUN npm ci --include=optional

# ── Stage 2: Build the application ──
FROM node:22-alpine AS builder
WORKDIR /app

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

# Prisma: generate client for linux-musl (Alpine)
# NOTE: dummy URL required because prisma.config.ts calls env("DATABASE_URL")
# during generate. The real URL is injected at runtime via docker-compose.
RUN DATABASE_URL="postgresql://dummy:dummy@localhost:5432/dummy" npx prisma generate

# Disable telemetry during build
ENV NEXT_TELEMETRY_DISABLED=1
ENV DATABASE_URL="postgresql://dummy:dummy@localhost:5432/dummy"

RUN npm run build

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

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# vips runtime — required for sharp at runtime, not just build
RUN apk add --no-cache vips

# Security: run as non-root user
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy public assets (footage, images, GLB models)
COPY --from=builder /app/public ./public

# Copy standalone build
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# Copy Prisma schema + generated client (needed for migrations at runtime)
COPY --from=builder /app/prisma ./prisma
COPY --from=builder /app/node_modules/.prisma ./node_modules/.prisma
COPY --from=builder /app/node_modules/@prisma ./node_modules/@prisma

# Copy sharp binary explicitly — Next.js standalone trace usually picks it
# up, but the @img/sharp-linuxmusl-x64 prebuilt is platform-conditional and
# can be missed. Copying both directories guarantees runtime availability.
COPY --from=builder /app/node_modules/sharp ./node_modules/sharp
COPY --from=builder /app/node_modules/@img ./node_modules/@img

# Copy i18n message files (required by next-intl at runtime)
COPY --from=builder /app/messages ./messages

USER nextjs

EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

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