FROM node:18-alpine AS builder

WORKDIR /app

# Alle Dependencies installieren (inkl. devDependencies für Build)
COPY package*.json ./
RUN npm ci

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

# Production Stage
FROM node:18-alpine

WORKDIR /app

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

# Built files vom Builder kopieren
COPY --from=builder /app/dist ./dist

# Port freigeben
EXPOSE 3000

# Healthcheck
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget -q --spider http://127.0.0.1:3000/health || exit 1

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