# =============================================================================
# tOS Web Frontend - Multi-Stage Docker Build
# =============================================================================
# Nutzt Next.js Standalone-Output fuer minimale Image-Groesse
# Voraussetzung: output: 'standalone' in next.config.mjs
#
# Build:   docker build -f apps/web/Dockerfile -t tos-web .
# Run:     docker run -p 3000:3000 --env-file .env tos-web
# =============================================================================

# ---------------------------------------------------------------------------
# Stage 1: Base - Node.js mit pnpm
# ---------------------------------------------------------------------------
FROM node:20-alpine AS base
RUN corepack enable && corepack prepare pnpm@9.15.0 --activate

# ---------------------------------------------------------------------------
# Stage 2: Builder - Dependencies installieren und kompilieren
# ---------------------------------------------------------------------------
FROM base AS builder
WORKDIR /app

# Kopiere Workspace-Konfiguration (fuer pnpm Monorepo-Aufloesung)
COPY package.json pnpm-workspace.yaml pnpm-lock.yaml ./

# Kopiere Shared Package (wird vom Frontend als Dependency referenziert)
COPY packages/ ./packages/

# Kopiere Frontend-Quellcode
COPY apps/web/ ./apps/web/

# Installiere alle Dependencies (frozen-lockfile fuer reproduzierbare Builds)
RUN pnpm install --frozen-lockfile

# Baue zuerst das Shared Package (Dependency des Frontends)
RUN pnpm --filter @tos/shared build

# Baue das Frontend (erzeugt .next/standalone dank output: 'standalone')
RUN pnpm --filter @tos/web build

# ---------------------------------------------------------------------------
# Stage 3: Runner - Schlankes Production Image
# ---------------------------------------------------------------------------
FROM base AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Kopiere Standalone-Output (enthaelt Server + gebundelte Dependencies)
COPY --from=builder /app/apps/web/.next/standalone ./

# Kopiere statische Assets (werden nicht im Standalone-Bundle enthalten)
COPY --from=builder /app/apps/web/.next/static ./apps/web/.next/static

# Kopiere Public-Verzeichnis (Bilder, Fonts, etc.)
COPY --from=builder /app/apps/web/public ./apps/web/public

# Sicherheit: Nicht als root ausfuehren
USER node

EXPOSE 3000
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Next.js Standalone-Server starten
CMD ["node", "apps/web/server.js"]