# 1. Base Image
FROM node:20-alpine AS base

# Corepack aktivieren, um pnpm bereitzustellen (kein npm install -g pnpm nötig)
RUN corepack enable && corepack prepare pnpm@latest --activate

# 2. Dependencies Stage
FROM base AS deps
# libc6-compat wird oft für Alpine benötigt
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Kopiere package.json und pnpm-lock.yaml
COPY package.json pnpm-lock.yaml ./

# Installiere Abhängigkeiten mit pnpm
RUN pnpm install --frozen-lockfile

# 3. Builder Stage
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Telemetry deaktivieren (optional)
ENV NEXT_TELEMETRY_DISABLED 1

# Build ausführen
RUN pnpm run build

# 4. Runner Stage (Production Image)
FROM base AS runner
WORKDIR /app

ENV NODE_ENV production
ENV NEXT_TELEMETRY_DISABLED 1

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

# Kopiere Public Assets
COPY --from=builder /app/public ./public

# Kopiere Standalone Build (benötigt output: 'standalone' in next.config.js)
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

# WICHTIG: Port auf 7777 ändern
EXPOSE 7777
ENV PORT 7777
ENV HOSTNAME "0.0.0.0"

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