FROM node:18-alpine

WORKDIR /app

# Dependencies installieren
COPY package*.json ./
RUN npm ci --only=production

# Source kopieren und builden
COPY tsconfig.json ./
COPY src ./src
RUN npm run build

# Aufräumen - nur dist und node_modules behalten
RUN rm -rf src tsconfig.json

# Port freigeben
EXPOSE 3000

# Healthcheck
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1

# Starten
CMD ["node", "dist/index.js"]